根据 material 设计指南实施 SearchView
Implementing SearchView as per the material design guidelines
我一直在寻找根据 material design guidelines.
在 activity 工具栏（操作栏）中实现搜索视图的方法
单击搜索图标时，整个工具栏会动画化，只有带有白色背景的搜索 EditText，并在主视图中显示建议，而不是下拉菜单。
这是指南的屏幕截图：
这是 Gmail 收件箱实施的 gif：
我一直在寻找代码示例和教程，但到目前为止我一直没有成功。我该怎么做？
您可以使用 AutoCompleteTextView 来实现，按照下面的link
How to build Gmail like search box in the action bar?
想法非常简单 - 您必须使用 EditText、TextWatcher 和 RecyclerView 以及 Filterable 适配器编写自己的 AutoCompleteTextView。
- EditText 为您提供了一个可以输入字符的文本字段
- TextWatcher 允许您监视文本更改
- RecyclerView 可以放置在任何地方，因此您可以像屏幕截图一样显示搜索结果
- 可过滤适配器有助于呈现使用输入文本过滤的数据
所以：
- 使用 EditText 在顶部进行布局，用 RecyclerView 填充剩余的 space。添加图标、阴影等
- 添加 TextWatcher 并在每次文本更改时更新适配器
如果您想查看我的解决方案，请在 github 上查看我的项目：
https://github.com/ZieIony/Carbon
自动完成演示可以在 'Demos' 部分的示例应用程序中播放。
从@Zielony 的回答中得到提示，我做了以下事情：
1) 相反，如果使用 ActionBar 或 ToolBar，我会构建自己的布局（基本上是一个带有汉堡菜单、搜索和其他菜单按钮以及用于搜索的 EditText 的 RelativeLayout）
2) 使用没有 ActionBar 的主题，将我的自定义布局放在 activity 的顶部，使其看起来像一个 ActionBar。
3) 在搜索按钮的 OnClickListener 中我做了两件事：
- 隐藏菜单按钮并显示 'search' EditText。
- 添加片段以显示搜索建议和搜索
- 显示软键盘输入
3) 为其他菜单按钮添加了 OnClickListeners。
4) 在 'search' EditText 上添加了一个 TextWatcher 以显示来自服务器的搜索提示和结果。
现在是这样的：
如果您使用 android.support.v7 库，这实际上很容易做到。
步骤 - 1
声明一个菜单项
<item android:id="@+id/action_search"
android:title="Search"
android:icon="@drawable/abc_ic_search_api_mtrl_alpha"
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="android.support.v7.widget.SearchView" />
步骤 - 2
扩展 AppCompatActivity 并在 onCreateOptionsMenu 中设置 SearchView。
import android.support.v7.widget.SearchView;
public class YourActivity extends AppCompatActivity {
...
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_home, menu);
// Retrieve the SearchView and plug it into SearchManager
final SearchView searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search));
SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
return true;
}
...
}
我想我已经明白了。
我现在只在工具栏内使用一个 EditText。
我现在有这个：
首先在我的 activity 的 onCreate() 中，我将右侧带有图像视图的 EditText 添加到工具栏，如下所示：
// Setup search container view
searchContainer = new LinearLayout(this);
Toolbar.LayoutParams containerParams = new Toolbar.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
containerParams.gravity = Gravity.CENTER_VERTICAL;
searchContainer.setLayoutParams(containerParams);
// Setup search view
toolbarSearchView = new EditText(this);
// Set width / height / gravity
int[] textSizeAttr = new int[]{android.R.attr.actionBarSize};
int indexOfAttrTextSize = 0;
TypedArray a = obtainStyledAttributes(new TypedValue().data, textSizeAttr);
int actionBarHeight = a.getDimensionPixelSize(indexOfAttrTextSize, -1);
a.recycle();
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0, actionBarHeight);
params.gravity = Gravity.CENTER_VERTICAL;
params.weight = 1;
toolbarSearchView.setLayoutParams(params);
// Setup display
toolbarSearchView.setBackgroundColor(Color.TRANSPARENT);
toolbarSearchView.setPadding(2, 0, 0, 0);
toolbarSearchView.setTextColor(Color.WHITE);
toolbarSearchView.setGravity(Gravity.CENTER_VERTICAL);
toolbarSearchView.setSingleLine(true);
toolbarSearchView.setImeActionLabel("Search", EditorInfo.IME_ACTION_UNSPECIFIED);
toolbarSearchView.setHint("Search");
toolbarSearchView.setHintTextColor(Color.parseColor("#b3ffffff"));
try {
// Set cursor colour to white
//
// https://github.com/android/platform_frameworks_base/blob/kitkat-release/core/java/android/widget/TextView.java#L562-564
Field f = TextView.class.getDeclaredField("mCursorDrawableRes");
f.setAccessible(true);
f.set(toolbarSearchView, R.drawable.edittext_whitecursor);
} catch (Exception ignored) {
}
// Search text changed listener
toolbarSearchView.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
Fragment mainFragment = getFragmentManager().findFragmentById(R.id.container);
if (mainFragment != null && mainFragment instanceof MainListFragment) {
((MainListFragment) mainFragment).search(s.toString());
}
}
@Override
public void afterTextChanged(Editable s) {
//
if (s.toString().length() <= 0) {
toolbarSearchView.setHintTextColor(Color.parseColor("#b3ffffff"));
}
}
});
((LinearLayout) searchContainer).addView(toolbarSearchView);
// Setup the clear button
searchClearButton = new ImageView(this);
Resources r = getResources();
int px = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 16, r.getDisplayMetrics());
LinearLayout.LayoutParams clearParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
clearParams.gravity = Gravity.CENTER;
searchClearButton.setLayoutParams(clearParams);
searchClearButton.setImageResource(R.drawable.ic_close_white_24dp); // TODO: Get this image from here: https://github.com/google/material-design-icons
searchClearButton.setPadding(px, 0, px, 0);
searchClearButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
toolbarSearchView.setText("");
}
});
((LinearLayout) searchContainer).addView(searchClearButton);
// Add search view to toolbar and hide it
searchContainer.setVisibility(View.GONE);
toolbar.addView(searchContainer);
这行得通，但后来我遇到了一个问题，即当我点击主页按钮时没有调用 onOptionsItemSelected() 。所以我无法通过按主页按钮取消搜索。我尝试了几种不同的方法来在主页按钮上注册点击侦听器，但它们没有用。
最终我发现我的 ActionBarDrawerToggle 干扰了一些东西，所以我删除了它。然后这个监听器开始工作：
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// toolbarHomeButtonAnimating is a boolean that is initialized as false. It's used to stop the user pressing the home button while it is animating and breaking things.
if (!toolbarHomeButtonAnimating) {
// Here you'll want to check if you have a search query set, if you don't then hide the search box.
// My main fragment handles this stuff, so I call its methods.
FragmentManager fragmentManager = getFragmentManager();
final Fragment fragment = fragmentManager.findFragmentById(R.id.container);
if (fragment != null && fragment instanceof MainListFragment) {
if (((MainListFragment) fragment).hasSearchQuery() || searchContainer.getVisibility() == View.VISIBLE) {
displaySearchView(false);
return;
}
}
}
if (mDrawerLayout.isDrawerOpen(findViewById(R.id.navigation_drawer)))
mDrawerLayout.closeDrawer(findViewById(R.id.navigation_drawer));
else
mDrawerLayout.openDrawer(findViewById(R.id.navigation_drawer));
}
});
所以我现在可以使用主页按钮取消搜索，但我还不能按返回按钮取消搜索。所以我将其添加到 onBackPressed():
FragmentManager fragmentManager = getFragmentManager();
final Fragment mainFragment = fragmentManager.findFragmentById(R.id.container);
if (mainFragment != null && mainFragment instanceof MainListFragment) {
if (((MainListFragment) mainFragment).hasSearchQuery() || searchContainer.getVisibility() == View.VISIBLE) {
displaySearchView(false);
return;
}
}
我创建了这个方法来切换 EditText 和菜单项的可见性：
public void displaySearchView(boolean visible) {
if (visible) {
// Stops user from being able to open drawer while searching
mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);
// Hide search button, display EditText
menu.findItem(R.id.action_search).setVisible(false);
searchContainer.setVisibility(View.VISIBLE);
// Animate the home icon to the back arrow
toggleActionBarIcon(ActionDrawableState.ARROW, mDrawerToggle, true);
// Shift focus to the search EditText
toolbarSearchView.requestFocus();
// Pop up the soft keyboard
new Handler().postDelayed(new Runnable() {
public void run() {
toolbarSearchView.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN, 0, 0, 0));
toolbarSearchView.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, 0, 0, 0));
}
}, 200);
} else {
// Allows user to open drawer again
mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED);
// Hide the EditText and put the search button back on the Toolbar.
// This sometimes fails when it isn't postDelayed(), don't know why.
toolbarSearchView.postDelayed(new Runnable() {
@Override
public void run() {
toolbarSearchView.setText("");
searchContainer.setVisibility(View.GONE);
menu.findItem(R.id.action_search).setVisible(true);
}
}, 200);
// Turn the home button back into a drawer icon
toggleActionBarIcon(ActionDrawableState.BURGER, mDrawerToggle, true);
// Hide the keyboard because the search box has been hidden
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(toolbarSearchView.getWindowToken(), 0);
}
}
我需要一种方法来在抽屉图标和后退按钮之间切换工具栏上的主页按钮。我最终在这个 SO answer 中找到了下面的方法。尽管我对其进行了一些修改以使其对我来说更有意义：
private enum ActionDrawableState
{
BURGER, ARROW
}
private void toggleActionBarIcon(final ActionDrawableState state, final ActionBarDrawerToggle toggle, boolean animate) {
if (animate) {
float start = state == ActionDrawableState.BURGER ? 1.0f : 0f;
float end = Math.abs(start - 1);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
ValueAnimator offsetAnimator = ValueAnimator.ofFloat(start, end);
offsetAnimator.setDuration(300);
offsetAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
offsetAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float offset = (Float) animation.getAnimatedValue();
toggle.onDrawerSlide(null, offset);
}
});
offsetAnimator.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
toolbarHomeButtonAnimating = false;
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
toolbarHomeButtonAnimating = true;
offsetAnimator.start();
}
} else {
if (state == ActionDrawableState.BURGER) {
toggle.onDrawerClosed(null);
} else {
toggle.onDrawerOpened(null);
}
}
}
这行得通，我设法解决了一些我在此过程中发现的错误。我不认为它是 100%，但它对我来说已经足够好了。
编辑：如果您想在 XML 而不是 Java 中添加搜索视图，请执行以下操作：
toolbar.xml:
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbar"
contentInsetLeft="72dp"
contentInsetStart="72dp"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:elevation="4dp"
android:minHeight="?attr/actionBarSize"
app:contentInsetLeft="72dp"
app:contentInsetStart="72dp"
app:popupTheme="@style/ActionBarPopupThemeOverlay"
app:theme="@style/ActionBarThemeOverlay">
<LinearLayout
android:id="@+id/search_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:orientation="horizontal">
<EditText
android:id="@+id/search_view"
android:layout_width="0dp"
android:layout_height="?attr/actionBarSize"
android:layout_weight="1"
android:background="@android:color/transparent"
android:gravity="center_vertical"
android:hint="Search"
android:imeOptions="actionSearch"
android:inputType="text"
android:maxLines="1"
android:paddingLeft="2dp"
android:singleLine="true"
android:textColor="#ffffff"
android:textColorHint="#b3ffffff" />
<ImageView
android:id="@+id/search_clear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:src="@drawable/ic_close_white_24dp" />
</LinearLayout>
onCreate() 你的 Activity:
searchContainer = findViewById(R.id.search_container);
toolbarSearchView = (EditText) findViewById(R.id.search_view);
searchClearButton = (ImageView) findViewById(R.id.search_clear);
// Setup search container view
try {
// Set cursor colour to white
//
// https://github.com/android/platform_frameworks_base/blob/kitkat-release/core/java/android/widget/TextView.java#L562-564
Field f = TextView.class.getDeclaredField("mCursorDrawableRes");
f.setAccessible(true);
f.set(toolbarSearchView, R.drawable.edittext_whitecursor);
} catch (Exception ignored) {
}
// Search text changed listener
toolbarSearchView.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
Fragment mainFragment = getFragmentManager().findFragmentById(R.id.container);
if (mainFragment != null && mainFragment instanceof MainListFragment) {
((MainListFragment) mainFragment).search(s.toString());
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
// Clear search text when clear button is tapped
searchClearButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
toolbarSearchView.setText("");
}
});
// Hide the search view
searchContainer.setVisibility(View.GONE);
这是我尝试实现它的方法，请检查一下。
https://github.com/Shahroz16/material-searchview
我尝试了几个 material SearchView 库，但其中 none 与支持库中的库一样好用，所以我决定重新设计它，经过大量工作，我很高兴结果：
以下是您的操作方法：
1) 将 SearchView 项目添加到您的菜单
<item
android:id="@+id/m_search"
android:icon="@drawable/ic_action_search"
android:title="@string/search_title"
app:actionLayout="@layout/search_view_layout"
app:showAsAction="ifRoom|collapseActionView" />
请注意，我声明的是 actionLayout 而不是 actionViewClass，我认为这是单独设置 SearchView 主题的唯一方法工具栏主题。
search_view_layout.xml:
<android.support.v7.widget.SearchView
android:id="@+id/search_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/SearchViewTheme" />
2) 将自定义 SearchView 主题添加到您的样式中，同时在您的工具栏主题中声明 SearchView 主题：
<style name="SearchViewTheme" parent="Widget.AppCompat.SearchView.ActionBar">
<item name="layout">@layout/toolbar_search_view</item>
<item name="commitIcon">@drawable/ic_search_commit</item>
<item name="colorControlNormal">@color/material_light_active_icon</item>
<item name="colorControlHighlight">@color/material_ripple_light</item>
<item name="autoCompleteTextViewStyle">@style/AutoCompleteTextViewStyle</item>
<item name="suggestionRowLayout">@layout/search_view_suggestion_row</item>
<item name="android:maxWidth">9999dp</item>
</style>
<style name="AutoCompleteTextViewStyle" parent="Widget.AppCompat.Light.AutoCompleteTextView">
<item name="android:popupBackground">@drawable/search_suggestions_bg</item>
<item name="android:popupElevation">0dp</item>
</style>
<style name="ToolbarTheme" parent="ThemeOverlay.AppCompat.Dark.ActionBar">
<item name="searchViewStyle">@style/SearchViewTheme</item>
</style>
toolbar_search_view.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/search_bar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:paddingEnd="8dp">
<!-- This is actually used for the badge icon *or* the badge label (or neither) -->
<TextView
android:id="@+id/search_badge"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginBottom="2dp"
android:drawablePadding="0dp"
android:gravity="center_vertical"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="?android:attr/textColorPrimary"
android:visibility="gone" />
<ImageView
android:id="@+id/search_button"
style="?attr/actionButtonStyle"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:contentDescription="@string/abc_searchview_description_search"
android:focusable="true" />
<LinearLayout
android:id="@+id/search_edit_frame"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:layoutDirection="locale"
android:orientation="horizontal">
<ImageView
android:id="@+id/search_mag_icon"
style="@style/RtlOverlay.Widget.AppCompat.SearchView.MagIcon"
android:layout_width="@dimen/abc_dropdownitem_icon_width"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:scaleType="centerInside"
android:visibility="gone" />
<!-- Inner layout contains the app icon, button(s) and EditText -->
<LinearLayout
android:id="@+id/search_plate"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:layout_weight="1"
android:orientation="horizontal">
<view
android:id="@+id/search_src_text"
class="android.support.v7.widget.SearchView$SearchAutoComplete"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:layout_marginEnd="@dimen/item_list_horizontal_margin"
android:layout_marginStart="@dimen/item_list_horizontal_margin"
android:layout_weight="1"
android:background="@null"
android:dropDownAnchor="@id/anchor_dropdown"
android:dropDownHeight="wrap_content"
android:dropDownHorizontalOffset="0dp"
android:dropDownVerticalOffset="0dp"
android:ellipsize="end"
android:imeOptions="actionSearch"
android:inputType="text|textAutoComplete|textNoSuggestions"
android:maxLines="1"
android:paddingEnd="8dp"
android:textColor="@android:color/black"
android:textColorHint="@color/material_light_hint_text"
android:textSize="20sp" />
<ImageView
android:id="@+id/search_close_btn"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:background="?attr/selectableItemBackgroundBorderless"
android:contentDescription="@string/abc_searchview_description_clear"
android:focusable="true"
android:paddingEnd="8dp"
android:paddingStart="8dp" />
</LinearLayout>
<LinearLayout
android:id="@+id/submit_area"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:id="@+id/search_go_btn"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:background="?attr/selectableItemBackgroundBorderless"
android:contentDescription="@string/abc_searchview_description_submit"
android:focusable="true"
android:paddingEnd="8dp"
android:paddingStart="8dp"
android:visibility="gone" />
<ImageView
android:id="@+id/search_voice_btn"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:background="?attr/selectableItemBackgroundBorderless"
android:contentDescription="@string/abc_searchview_description_voice"
android:focusable="true"
android:paddingEnd="8dp"
android:paddingStart="8dp"
android:visibility="gone" />
</LinearLayout>
</LinearLayout>
请注意，我在工具栏视图下添加了锚点下拉视图，因此建议将获得全屏宽度。
<android.support.design.widget.AppBarLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/appBar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:collapseIcon="@drawable/ic_search_collapse"
app:popupTheme="@style/AppTheme.PopupOverlay"
app:theme="@style/ToolbarTheme" />
<View
android:id="@+id/anchor_dropdown"
android:layout_width="match_parent"
android:layout_height="0dp" />
</android.support.design.widget.AppBarLayout>
search_view_suggestion_row.xml:
（更改 suggestion_divider 可见性，如果你想要建议之间的分隔符）：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="58dp"
android:theme="@style/Theme.AppCompat.DayNight">
<!-- Icons come first in the layout, since their placement doesn't depend on
the placement of the text views. -->
<ImageView
android:id="@android:id/icon1"
style="@style/RtlOverlay.Widget.AppCompat.Search.DropDown.Icon1"
android:layout_width="56dp"
android:layout_height="56dp"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:scaleType="centerInside"
android:visibility="invisible" />
<ImageView
android:id="@+id/edit_query"
style="@style/RtlOverlay.Widget.AppCompat.Search.DropDown.Query"
android:layout_width="56dp"
android:layout_height="56dp"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:background="?attr/selectableItemBackground"
android:scaleType="centerInside"
android:visibility="gone" />
<ImageView
android:id="@id/android:icon2"
style="@style/RtlOverlay.Widget.AppCompat.Search.DropDown.Icon2"
android:layout_width="56dp"
android:layout_height="56dp"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:layout_alignWithParentIfMissing="true"
android:scaleType="centerInside"
android:visibility="gone" />
<!-- The subtitle comes before the title, since the height of the title depends on whether the
subtitle is visible or gone. -->
<TextView
android:id="@android:id/text2"
style="?android:attr/dropDownItemStyle"
android:layout_width="match_parent"
android:layout_height="29dp"
android:layout_alignParentBottom="true"
android:layout_alignWithParentIfMissing="true"
android:gravity="top"
android:maxLines="1"
android:paddingBottom="4dp"
android:textColor="?android:textColorSecondary"
android:textSize="12sp"
android:visibility="gone" />
<!-- The title is placed above the subtitle, if there is one. If there is no
subtitle, it fills the parent. -->
<TextView
android:id="@android:id/text1"
style="?android:attr/dropDownItemStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@android:id/text2"
android:layout_centerVertical="true"
android:ellipsize="end"
android:maxLines="1"
android:scrollHorizontally="false"
android:textColor="?android:textColorPrimary"
android:textSize="16sp" />
<View
android:id="@+id/suggestion_divider"
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_alignParentBottom="true"
android:layout_alignStart="@android:id/text1"
android:layout_marginStart="8dp"
android:background="@color/divider_color"
android:visibility="gone" />
建议背景和提交图标是自定义的，我使用的其余图标可以在以下位置找到：https://material.io/icons/
ic_search_commit.xml:
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:autoMirrored="true"
android:viewportHeight="24.0"
android:viewportWidth="24.0">
<path
android:fillColor="@color/active_icon_color"
android:pathData="m18.364,16.95l-8.605,-8.605l7.905,-0l-0.007,-2.001l-11.314,0l0,11.314l1.994,-0l0.007,-7.898l8.605,8.605l1.414,-1.414z" />
search_suggestions_bg.xml:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<padding android:top="0.5dp" />
<stroke
android:width="0.5dp"
android:color="@color/divider_color" />
</shape>
</item>
<item>
<shape android:shape="rectangle">
<solid android:color="@color/cards_and_dialogs_color" />
</shape>
</item>
</layer-list>
将以下值添加到您的 colors.xml（仅当您使用 DayNight 主题时才添加值-night）：
values/colors.xml
<color name="material_light_primary_text">#DE000000</color>
<color name="material_light_hint_text">#61000000</color>
<color name="material_light_active_icon">#8A000000</color>
<color name="material_ripple_light">#1F000000</color>
<color name="divider_color">#1F000000</color>
<color name="active_icon_color">#8A000000</color>
<color name="cards_and_dialogs_color">@android:color/white</color>
<color name="quantum_grey_600">#757575</color>
values-night/colors.xml:
<color name="divider_color">#1FFFFFFF</color>
<color name="active_icon_color">@android:color/white</color>
<color name="cards_and_dialogs_color">#424242</color>
3) 最后一部分，让魔法在代码中发生：
在您想要的 activity
中设置和初始化 SearchView
private MenuItem mSearchItem;
private Toolbar mToolbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
...
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
mSearchItem = menu.findItem(R.id.m_search);
MenuItemCompat.setOnActionExpandListener(mSearchItem, new MenuItemCompat.OnActionExpandListener() {
@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
// Called when SearchView is collapsing
if (mSearchItem.isActionViewExpanded()) {
animateSearchToolbar(1, false, false);
}
return true;
}
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
// Called when SearchView is expanding
animateSearchToolbar(1, true, true);
return true;
}
});
return true;
}
public void animateSearchToolbar(int numberOfMenuIcon, boolean containsOverflow, boolean show) {
mToolbar.setBackgroundColor(ContextCompat.getColor(this, android.R.color.white));
mDrawerLayout.setStatusBarBackgroundColor(ContextCompat.getColor(this, R.color.quantum_grey_600));
if (show) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
int width = mToolbar.getWidth() -
(containsOverflow ? getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_overflow_material) : 0) -
((getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_material) * numberOfMenuIcon) / 2);
Animator createCircularReveal = ViewAnimationUtils.createCircularReveal(mToolbar,
isRtl(getResources()) ? mToolbar.getWidth() - width : width, mToolbar.getHeight() / 2, 0.0f, (float) width);
createCircularReveal.setDuration(250);
createCircularReveal.start();
} else {
TranslateAnimation translateAnimation = new TranslateAnimation(0.0f, 0.0f, (float) (-mToolbar.getHeight()), 0.0f);
translateAnimation.setDuration(220);
mToolbar.clearAnimation();
mToolbar.startAnimation(translateAnimation);
}
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
int width = mToolbar.getWidth() -
(containsOverflow ? getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_overflow_material) : 0) -
((getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_material) * numberOfMenuIcon) / 2);
Animator createCircularReveal = ViewAnimationUtils.createCircularReveal(mToolbar,
isRtl(getResources()) ? mToolbar.getWidth() - width : width, mToolbar.getHeight() / 2, (float) width, 0.0f);
createCircularReveal.setDuration(250);
createCircularReveal.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
mToolbar.setBackgroundColor(getThemeColor(MainActivity.this, R.attr.colorPrimary));
mDrawerLayout.setStatusBarBackgroundColor(getThemeColor(MainActivity.this, R.attr.colorPrimaryDark));
}
});
createCircularReveal.start();
} else {
AlphaAnimation alphaAnimation = new AlphaAnimation(1.0f, 0.0f);
Animation translateAnimation = new TranslateAnimation(0.0f, 0.0f, 0.0f, (float) (-mToolbar.getHeight()));
AnimationSet animationSet = new AnimationSet(true);
animationSet.addAnimation(alphaAnimation);
animationSet.addAnimation(translateAnimation);
animationSet.setDuration(220);
animationSet.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
mToolbar.setBackgroundColor(getThemeColor(MainActivity.this, R.attr.colorPrimary));
}
@Override
public void onAnimationRepeat(Animation animation) {
}
});
mToolbar.startAnimation(animationSet);
}
mDrawerLayout.setStatusBarBackgroundColor(getThemeColor(MainActivity.this, R.attr.colorPrimaryDark));
}
}
private boolean isRtl(Resources resources) {
return resources.getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
}
private static int getThemeColor(Context context, int id) {
Resources.Theme theme = context.getTheme();
TypedArray a = theme.obtainStyledAttributes(new int[]{id});
int result = a.getColor(0, 0);
a.recycle();
return result;
}
关于代码需要注意的几点：
1) 动画会根据您设置的菜单项数量调整起点，如果工具栏有溢出图标，它会自动检测布局是 LTR 还是 RTL。
2) 我使用的是导航抽屉activity，所以我将StatusBar颜色设置为mDrawerLayout，如果你使用的是常规activity，你可以这样设置StatusBar颜色：
getWindow().setStatusBarColor(ContextCompat.getColor(this, R.color.quantum_grey_600));
3) 圆形显示动画仅适用于 KitKat 及更高版本。
我一直在寻找根据 material design guidelines.
在 activity 工具栏（操作栏）中实现搜索视图的方法单击搜索图标时，整个工具栏会动画化，只有带有白色背景的搜索 EditText，并在主视图中显示建议，而不是下拉菜单。
这是指南的屏幕截图：
这是 Gmail 收件箱实施的 gif：
我一直在寻找代码示例和教程，但到目前为止我一直没有成功。我该怎么做？
您可以使用 AutoCompleteTextView 来实现，按照下面的link
How to build Gmail like search box in the action bar?
想法非常简单 - 您必须使用 EditText、TextWatcher 和 RecyclerView 以及 Filterable 适配器编写自己的 AutoCompleteTextView。
- EditText 为您提供了一个可以输入字符的文本字段
- TextWatcher 允许您监视文本更改
- RecyclerView 可以放置在任何地方，因此您可以像屏幕截图一样显示搜索结果
- 可过滤适配器有助于呈现使用输入文本过滤的数据
所以：
- 使用 EditText 在顶部进行布局，用 RecyclerView 填充剩余的 space。添加图标、阴影等
- 添加 TextWatcher 并在每次文本更改时更新适配器
如果您想查看我的解决方案，请在 github 上查看我的项目： https://github.com/ZieIony/Carbon
自动完成演示可以在 'Demos' 部分的示例应用程序中播放。
从@Zielony 的回答中得到提示，我做了以下事情：
1) 相反，如果使用 ActionBar 或 ToolBar，我会构建自己的布局（基本上是一个带有汉堡菜单、搜索和其他菜单按钮以及用于搜索的 EditText 的 RelativeLayout）
2) 使用没有 ActionBar 的主题，将我的自定义布局放在 activity 的顶部，使其看起来像一个 ActionBar。
3) 在搜索按钮的 OnClickListener 中我做了两件事：
- 隐藏菜单按钮并显示 'search' EditText。
- 添加片段以显示搜索建议和搜索
- 显示软键盘输入
3) 为其他菜单按钮添加了 OnClickListeners。
4) 在 'search' EditText 上添加了一个 TextWatcher 以显示来自服务器的搜索提示和结果。
现在是这样的：
如果您使用 android.support.v7 库，这实际上很容易做到。
步骤 - 1
声明一个菜单项
<item android:id="@+id/action_search"
android:title="Search"
android:icon="@drawable/abc_ic_search_api_mtrl_alpha"
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="android.support.v7.widget.SearchView" />
步骤 - 2
扩展 AppCompatActivity 并在 onCreateOptionsMenu 中设置 SearchView。
import android.support.v7.widget.SearchView;
public class YourActivity extends AppCompatActivity {
...
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_home, menu);
// Retrieve the SearchView and plug it into SearchManager
final SearchView searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search));
SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
return true;
}
...
}
我想我已经明白了。 我现在只在工具栏内使用一个 EditText。
我现在有这个：
首先在我的 activity 的 onCreate() 中，我将右侧带有图像视图的 EditText 添加到工具栏，如下所示：
// Setup search container view
searchContainer = new LinearLayout(this);
Toolbar.LayoutParams containerParams = new Toolbar.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
containerParams.gravity = Gravity.CENTER_VERTICAL;
searchContainer.setLayoutParams(containerParams);
// Setup search view
toolbarSearchView = new EditText(this);
// Set width / height / gravity
int[] textSizeAttr = new int[]{android.R.attr.actionBarSize};
int indexOfAttrTextSize = 0;
TypedArray a = obtainStyledAttributes(new TypedValue().data, textSizeAttr);
int actionBarHeight = a.getDimensionPixelSize(indexOfAttrTextSize, -1);
a.recycle();
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0, actionBarHeight);
params.gravity = Gravity.CENTER_VERTICAL;
params.weight = 1;
toolbarSearchView.setLayoutParams(params);
// Setup display
toolbarSearchView.setBackgroundColor(Color.TRANSPARENT);
toolbarSearchView.setPadding(2, 0, 0, 0);
toolbarSearchView.setTextColor(Color.WHITE);
toolbarSearchView.setGravity(Gravity.CENTER_VERTICAL);
toolbarSearchView.setSingleLine(true);
toolbarSearchView.setImeActionLabel("Search", EditorInfo.IME_ACTION_UNSPECIFIED);
toolbarSearchView.setHint("Search");
toolbarSearchView.setHintTextColor(Color.parseColor("#b3ffffff"));
try {
// Set cursor colour to white
//
// https://github.com/android/platform_frameworks_base/blob/kitkat-release/core/java/android/widget/TextView.java#L562-564
Field f = TextView.class.getDeclaredField("mCursorDrawableRes");
f.setAccessible(true);
f.set(toolbarSearchView, R.drawable.edittext_whitecursor);
} catch (Exception ignored) {
}
// Search text changed listener
toolbarSearchView.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
Fragment mainFragment = getFragmentManager().findFragmentById(R.id.container);
if (mainFragment != null && mainFragment instanceof MainListFragment) {
((MainListFragment) mainFragment).search(s.toString());
}
}
@Override
public void afterTextChanged(Editable s) {
//
if (s.toString().length() <= 0) {
toolbarSearchView.setHintTextColor(Color.parseColor("#b3ffffff"));
}
}
});
((LinearLayout) searchContainer).addView(toolbarSearchView);
// Setup the clear button
searchClearButton = new ImageView(this);
Resources r = getResources();
int px = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 16, r.getDisplayMetrics());
LinearLayout.LayoutParams clearParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
clearParams.gravity = Gravity.CENTER;
searchClearButton.setLayoutParams(clearParams);
searchClearButton.setImageResource(R.drawable.ic_close_white_24dp); // TODO: Get this image from here: https://github.com/google/material-design-icons
searchClearButton.setPadding(px, 0, px, 0);
searchClearButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
toolbarSearchView.setText("");
}
});
((LinearLayout) searchContainer).addView(searchClearButton);
// Add search view to toolbar and hide it
searchContainer.setVisibility(View.GONE);
toolbar.addView(searchContainer);
这行得通，但后来我遇到了一个问题，即当我点击主页按钮时没有调用 onOptionsItemSelected() 。所以我无法通过按主页按钮取消搜索。我尝试了几种不同的方法来在主页按钮上注册点击侦听器，但它们没有用。
最终我发现我的 ActionBarDrawerToggle 干扰了一些东西，所以我删除了它。然后这个监听器开始工作：
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// toolbarHomeButtonAnimating is a boolean that is initialized as false. It's used to stop the user pressing the home button while it is animating and breaking things.
if (!toolbarHomeButtonAnimating) {
// Here you'll want to check if you have a search query set, if you don't then hide the search box.
// My main fragment handles this stuff, so I call its methods.
FragmentManager fragmentManager = getFragmentManager();
final Fragment fragment = fragmentManager.findFragmentById(R.id.container);
if (fragment != null && fragment instanceof MainListFragment) {
if (((MainListFragment) fragment).hasSearchQuery() || searchContainer.getVisibility() == View.VISIBLE) {
displaySearchView(false);
return;
}
}
}
if (mDrawerLayout.isDrawerOpen(findViewById(R.id.navigation_drawer)))
mDrawerLayout.closeDrawer(findViewById(R.id.navigation_drawer));
else
mDrawerLayout.openDrawer(findViewById(R.id.navigation_drawer));
}
});
所以我现在可以使用主页按钮取消搜索，但我还不能按返回按钮取消搜索。所以我将其添加到 onBackPressed():
FragmentManager fragmentManager = getFragmentManager();
final Fragment mainFragment = fragmentManager.findFragmentById(R.id.container);
if (mainFragment != null && mainFragment instanceof MainListFragment) {
if (((MainListFragment) mainFragment).hasSearchQuery() || searchContainer.getVisibility() == View.VISIBLE) {
displaySearchView(false);
return;
}
}
我创建了这个方法来切换 EditText 和菜单项的可见性：
public void displaySearchView(boolean visible) {
if (visible) {
// Stops user from being able to open drawer while searching
mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);
// Hide search button, display EditText
menu.findItem(R.id.action_search).setVisible(false);
searchContainer.setVisibility(View.VISIBLE);
// Animate the home icon to the back arrow
toggleActionBarIcon(ActionDrawableState.ARROW, mDrawerToggle, true);
// Shift focus to the search EditText
toolbarSearchView.requestFocus();
// Pop up the soft keyboard
new Handler().postDelayed(new Runnable() {
public void run() {
toolbarSearchView.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN, 0, 0, 0));
toolbarSearchView.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, 0, 0, 0));
}
}, 200);
} else {
// Allows user to open drawer again
mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED);
// Hide the EditText and put the search button back on the Toolbar.
// This sometimes fails when it isn't postDelayed(), don't know why.
toolbarSearchView.postDelayed(new Runnable() {
@Override
public void run() {
toolbarSearchView.setText("");
searchContainer.setVisibility(View.GONE);
menu.findItem(R.id.action_search).setVisible(true);
}
}, 200);
// Turn the home button back into a drawer icon
toggleActionBarIcon(ActionDrawableState.BURGER, mDrawerToggle, true);
// Hide the keyboard because the search box has been hidden
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(toolbarSearchView.getWindowToken(), 0);
}
}
我需要一种方法来在抽屉图标和后退按钮之间切换工具栏上的主页按钮。我最终在这个 SO answer 中找到了下面的方法。尽管我对其进行了一些修改以使其对我来说更有意义：
private enum ActionDrawableState
{
BURGER, ARROW
}
private void toggleActionBarIcon(final ActionDrawableState state, final ActionBarDrawerToggle toggle, boolean animate) {
if (animate) {
float start = state == ActionDrawableState.BURGER ? 1.0f : 0f;
float end = Math.abs(start - 1);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
ValueAnimator offsetAnimator = ValueAnimator.ofFloat(start, end);
offsetAnimator.setDuration(300);
offsetAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
offsetAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float offset = (Float) animation.getAnimatedValue();
toggle.onDrawerSlide(null, offset);
}
});
offsetAnimator.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
toolbarHomeButtonAnimating = false;
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
toolbarHomeButtonAnimating = true;
offsetAnimator.start();
}
} else {
if (state == ActionDrawableState.BURGER) {
toggle.onDrawerClosed(null);
} else {
toggle.onDrawerOpened(null);
}
}
}
这行得通，我设法解决了一些我在此过程中发现的错误。我不认为它是 100%，但它对我来说已经足够好了。 编辑：如果您想在 XML 而不是 Java 中添加搜索视图，请执行以下操作：
toolbar.xml:
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbar"
contentInsetLeft="72dp"
contentInsetStart="72dp"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:elevation="4dp"
android:minHeight="?attr/actionBarSize"
app:contentInsetLeft="72dp"
app:contentInsetStart="72dp"
app:popupTheme="@style/ActionBarPopupThemeOverlay"
app:theme="@style/ActionBarThemeOverlay">
<LinearLayout
android:id="@+id/search_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:orientation="horizontal">
<EditText
android:id="@+id/search_view"
android:layout_width="0dp"
android:layout_height="?attr/actionBarSize"
android:layout_weight="1"
android:background="@android:color/transparent"
android:gravity="center_vertical"
android:hint="Search"
android:imeOptions="actionSearch"
android:inputType="text"
android:maxLines="1"
android:paddingLeft="2dp"
android:singleLine="true"
android:textColor="#ffffff"
android:textColorHint="#b3ffffff" />
<ImageView
android:id="@+id/search_clear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:src="@drawable/ic_close_white_24dp" />
</LinearLayout>
onCreate() 你的 Activity:
searchContainer = findViewById(R.id.search_container);
toolbarSearchView = (EditText) findViewById(R.id.search_view);
searchClearButton = (ImageView) findViewById(R.id.search_clear);
// Setup search container view
try {
// Set cursor colour to white
//
// https://github.com/android/platform_frameworks_base/blob/kitkat-release/core/java/android/widget/TextView.java#L562-564
Field f = TextView.class.getDeclaredField("mCursorDrawableRes");
f.setAccessible(true);
f.set(toolbarSearchView, R.drawable.edittext_whitecursor);
} catch (Exception ignored) {
}
// Search text changed listener
toolbarSearchView.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
Fragment mainFragment = getFragmentManager().findFragmentById(R.id.container);
if (mainFragment != null && mainFragment instanceof MainListFragment) {
((MainListFragment) mainFragment).search(s.toString());
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
// Clear search text when clear button is tapped
searchClearButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
toolbarSearchView.setText("");
}
});
// Hide the search view
searchContainer.setVisibility(View.GONE);
这是我尝试实现它的方法，请检查一下。
https://github.com/Shahroz16/material-searchview
我尝试了几个 material SearchView 库，但其中 none 与支持库中的库一样好用，所以我决定重新设计它，经过大量工作，我很高兴结果：
以下是您的操作方法：
1) 将 SearchView 项目添加到您的菜单
<item
android:id="@+id/m_search"
android:icon="@drawable/ic_action_search"
android:title="@string/search_title"
app:actionLayout="@layout/search_view_layout"
app:showAsAction="ifRoom|collapseActionView" />
请注意，我声明的是 actionLayout 而不是 actionViewClass，我认为这是单独设置 SearchView 主题的唯一方法工具栏主题。
search_view_layout.xml:
<android.support.v7.widget.SearchView
android:id="@+id/search_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/SearchViewTheme" />
2) 将自定义 SearchView 主题添加到您的样式中，同时在您的工具栏主题中声明 SearchView 主题：
<style name="SearchViewTheme" parent="Widget.AppCompat.SearchView.ActionBar">
<item name="layout">@layout/toolbar_search_view</item>
<item name="commitIcon">@drawable/ic_search_commit</item>
<item name="colorControlNormal">@color/material_light_active_icon</item>
<item name="colorControlHighlight">@color/material_ripple_light</item>
<item name="autoCompleteTextViewStyle">@style/AutoCompleteTextViewStyle</item>
<item name="suggestionRowLayout">@layout/search_view_suggestion_row</item>
<item name="android:maxWidth">9999dp</item>
</style>
<style name="AutoCompleteTextViewStyle" parent="Widget.AppCompat.Light.AutoCompleteTextView">
<item name="android:popupBackground">@drawable/search_suggestions_bg</item>
<item name="android:popupElevation">0dp</item>
</style>
<style name="ToolbarTheme" parent="ThemeOverlay.AppCompat.Dark.ActionBar">
<item name="searchViewStyle">@style/SearchViewTheme</item>
</style>
toolbar_search_view.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/search_bar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:paddingEnd="8dp">
<!-- This is actually used for the badge icon *or* the badge label (or neither) -->
<TextView
android:id="@+id/search_badge"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginBottom="2dp"
android:drawablePadding="0dp"
android:gravity="center_vertical"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="?android:attr/textColorPrimary"
android:visibility="gone" />
<ImageView
android:id="@+id/search_button"
style="?attr/actionButtonStyle"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:contentDescription="@string/abc_searchview_description_search"
android:focusable="true" />
<LinearLayout
android:id="@+id/search_edit_frame"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:layoutDirection="locale"
android:orientation="horizontal">
<ImageView
android:id="@+id/search_mag_icon"
style="@style/RtlOverlay.Widget.AppCompat.SearchView.MagIcon"
android:layout_width="@dimen/abc_dropdownitem_icon_width"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:scaleType="centerInside"
android:visibility="gone" />
<!-- Inner layout contains the app icon, button(s) and EditText -->
<LinearLayout
android:id="@+id/search_plate"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:layout_weight="1"
android:orientation="horizontal">
<view
android:id="@+id/search_src_text"
class="android.support.v7.widget.SearchView$SearchAutoComplete"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:layout_marginEnd="@dimen/item_list_horizontal_margin"
android:layout_marginStart="@dimen/item_list_horizontal_margin"
android:layout_weight="1"
android:background="@null"
android:dropDownAnchor="@id/anchor_dropdown"
android:dropDownHeight="wrap_content"
android:dropDownHorizontalOffset="0dp"
android:dropDownVerticalOffset="0dp"
android:ellipsize="end"
android:imeOptions="actionSearch"
android:inputType="text|textAutoComplete|textNoSuggestions"
android:maxLines="1"
android:paddingEnd="8dp"
android:textColor="@android:color/black"
android:textColorHint="@color/material_light_hint_text"
android:textSize="20sp" />
<ImageView
android:id="@+id/search_close_btn"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:background="?attr/selectableItemBackgroundBorderless"
android:contentDescription="@string/abc_searchview_description_clear"
android:focusable="true"
android:paddingEnd="8dp"
android:paddingStart="8dp" />
</LinearLayout>
<LinearLayout
android:id="@+id/submit_area"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:id="@+id/search_go_btn"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:background="?attr/selectableItemBackgroundBorderless"
android:contentDescription="@string/abc_searchview_description_submit"
android:focusable="true"
android:paddingEnd="8dp"
android:paddingStart="8dp"
android:visibility="gone" />
<ImageView
android:id="@+id/search_voice_btn"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:background="?attr/selectableItemBackgroundBorderless"
android:contentDescription="@string/abc_searchview_description_voice"
android:focusable="true"
android:paddingEnd="8dp"
android:paddingStart="8dp"
android:visibility="gone" />
</LinearLayout>
</LinearLayout>
请注意，我在工具栏视图下添加了锚点下拉视图，因此建议将获得全屏宽度。
<android.support.design.widget.AppBarLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/appBar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:collapseIcon="@drawable/ic_search_collapse"
app:popupTheme="@style/AppTheme.PopupOverlay"
app:theme="@style/ToolbarTheme" />
<View
android:id="@+id/anchor_dropdown"
android:layout_width="match_parent"
android:layout_height="0dp" />
</android.support.design.widget.AppBarLayout>
search_view_suggestion_row.xml:
（更改 suggestion_divider 可见性，如果你想要建议之间的分隔符）：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="58dp"
android:theme="@style/Theme.AppCompat.DayNight">
<!-- Icons come first in the layout, since their placement doesn't depend on
the placement of the text views. -->
<ImageView
android:id="@android:id/icon1"
style="@style/RtlOverlay.Widget.AppCompat.Search.DropDown.Icon1"
android:layout_width="56dp"
android:layout_height="56dp"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:scaleType="centerInside"
android:visibility="invisible" />
<ImageView
android:id="@+id/edit_query"
style="@style/RtlOverlay.Widget.AppCompat.Search.DropDown.Query"
android:layout_width="56dp"
android:layout_height="56dp"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:background="?attr/selectableItemBackground"
android:scaleType="centerInside"
android:visibility="gone" />
<ImageView
android:id="@id/android:icon2"
style="@style/RtlOverlay.Widget.AppCompat.Search.DropDown.Icon2"
android:layout_width="56dp"
android:layout_height="56dp"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:layout_alignWithParentIfMissing="true"
android:scaleType="centerInside"
android:visibility="gone" />
<!-- The subtitle comes before the title, since the height of the title depends on whether the
subtitle is visible or gone. -->
<TextView
android:id="@android:id/text2"
style="?android:attr/dropDownItemStyle"
android:layout_width="match_parent"
android:layout_height="29dp"
android:layout_alignParentBottom="true"
android:layout_alignWithParentIfMissing="true"
android:gravity="top"
android:maxLines="1"
android:paddingBottom="4dp"
android:textColor="?android:textColorSecondary"
android:textSize="12sp"
android:visibility="gone" />
<!-- The title is placed above the subtitle, if there is one. If there is no
subtitle, it fills the parent. -->
<TextView
android:id="@android:id/text1"
style="?android:attr/dropDownItemStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@android:id/text2"
android:layout_centerVertical="true"
android:ellipsize="end"
android:maxLines="1"
android:scrollHorizontally="false"
android:textColor="?android:textColorPrimary"
android:textSize="16sp" />
<View
android:id="@+id/suggestion_divider"
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_alignParentBottom="true"
android:layout_alignStart="@android:id/text1"
android:layout_marginStart="8dp"
android:background="@color/divider_color"
android:visibility="gone" />
建议背景和提交图标是自定义的，我使用的其余图标可以在以下位置找到：https://material.io/icons/
ic_search_commit.xml:
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:autoMirrored="true"
android:viewportHeight="24.0"
android:viewportWidth="24.0">
<path
android:fillColor="@color/active_icon_color"
android:pathData="m18.364,16.95l-8.605,-8.605l7.905,-0l-0.007,-2.001l-11.314,0l0,11.314l1.994,-0l0.007,-7.898l8.605,8.605l1.414,-1.414z" />
search_suggestions_bg.xml:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<padding android:top="0.5dp" />
<stroke
android:width="0.5dp"
android:color="@color/divider_color" />
</shape>
</item>
<item>
<shape android:shape="rectangle">
<solid android:color="@color/cards_and_dialogs_color" />
</shape>
</item>
</layer-list>
将以下值添加到您的 colors.xml（仅当您使用 DayNight 主题时才添加值-night）：
values/colors.xml
<color name="material_light_primary_text">#DE000000</color>
<color name="material_light_hint_text">#61000000</color>
<color name="material_light_active_icon">#8A000000</color>
<color name="material_ripple_light">#1F000000</color>
<color name="divider_color">#1F000000</color>
<color name="active_icon_color">#8A000000</color>
<color name="cards_and_dialogs_color">@android:color/white</color>
<color name="quantum_grey_600">#757575</color>
values-night/colors.xml:
<color name="divider_color">#1FFFFFFF</color>
<color name="active_icon_color">@android:color/white</color>
<color name="cards_and_dialogs_color">#424242</color>
3) 最后一部分，让魔法在代码中发生：
在您想要的 activity
中设置和初始化 SearchViewprivate MenuItem mSearchItem;
private Toolbar mToolbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
...
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
mSearchItem = menu.findItem(R.id.m_search);
MenuItemCompat.setOnActionExpandListener(mSearchItem, new MenuItemCompat.OnActionExpandListener() {
@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
// Called when SearchView is collapsing
if (mSearchItem.isActionViewExpanded()) {
animateSearchToolbar(1, false, false);
}
return true;
}
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
// Called when SearchView is expanding
animateSearchToolbar(1, true, true);
return true;
}
});
return true;
}
public void animateSearchToolbar(int numberOfMenuIcon, boolean containsOverflow, boolean show) {
mToolbar.setBackgroundColor(ContextCompat.getColor(this, android.R.color.white));
mDrawerLayout.setStatusBarBackgroundColor(ContextCompat.getColor(this, R.color.quantum_grey_600));
if (show) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
int width = mToolbar.getWidth() -
(containsOverflow ? getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_overflow_material) : 0) -
((getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_material) * numberOfMenuIcon) / 2);
Animator createCircularReveal = ViewAnimationUtils.createCircularReveal(mToolbar,
isRtl(getResources()) ? mToolbar.getWidth() - width : width, mToolbar.getHeight() / 2, 0.0f, (float) width);
createCircularReveal.setDuration(250);
createCircularReveal.start();
} else {
TranslateAnimation translateAnimation = new TranslateAnimation(0.0f, 0.0f, (float) (-mToolbar.getHeight()), 0.0f);
translateAnimation.setDuration(220);
mToolbar.clearAnimation();
mToolbar.startAnimation(translateAnimation);
}
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
int width = mToolbar.getWidth() -
(containsOverflow ? getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_overflow_material) : 0) -
((getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_material) * numberOfMenuIcon) / 2);
Animator createCircularReveal = ViewAnimationUtils.createCircularReveal(mToolbar,
isRtl(getResources()) ? mToolbar.getWidth() - width : width, mToolbar.getHeight() / 2, (float) width, 0.0f);
createCircularReveal.setDuration(250);
createCircularReveal.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
mToolbar.setBackgroundColor(getThemeColor(MainActivity.this, R.attr.colorPrimary));
mDrawerLayout.setStatusBarBackgroundColor(getThemeColor(MainActivity.this, R.attr.colorPrimaryDark));
}
});
createCircularReveal.start();
} else {
AlphaAnimation alphaAnimation = new AlphaAnimation(1.0f, 0.0f);
Animation translateAnimation = new TranslateAnimation(0.0f, 0.0f, 0.0f, (float) (-mToolbar.getHeight()));
AnimationSet animationSet = new AnimationSet(true);
animationSet.addAnimation(alphaAnimation);
animationSet.addAnimation(translateAnimation);
animationSet.setDuration(220);
animationSet.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
mToolbar.setBackgroundColor(getThemeColor(MainActivity.this, R.attr.colorPrimary));
}
@Override
public void onAnimationRepeat(Animation animation) {
}
});
mToolbar.startAnimation(animationSet);
}
mDrawerLayout.setStatusBarBackgroundColor(getThemeColor(MainActivity.this, R.attr.colorPrimaryDark));
}
}
private boolean isRtl(Resources resources) {
return resources.getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
}
private static int getThemeColor(Context context, int id) {
Resources.Theme theme = context.getTheme();
TypedArray a = theme.obtainStyledAttributes(new int[]{id});
int result = a.getColor(0, 0);
a.recycle();
return result;
}
关于代码需要注意的几点：
1) 动画会根据您设置的菜单项数量调整起点，如果工具栏有溢出图标，它会自动检测布局是 LTR 还是 RTL。
2) 我使用的是导航抽屉activity，所以我将StatusBar颜色设置为mDrawerLayout，如果你使用的是常规activity，你可以这样设置StatusBar颜色：
getWindow().setStatusBarColor(ContextCompat.getColor(this, R.color.quantum_grey_600));
3) 圆形显示动画仅适用于 KitKat 及更高版本。