带有方向更改列表视图的自定义对话框（横向模式）
Custom Dialog with listview on orientation change (landscape mode)
我希望我的自定义对话框在纵向和横向模式下都能工作。为此，我找到了在 layout-land 文件夹中创建 XML 的解决方案。所以，我复制了布局并将其粘贴到 layout-land 文件夹中并进行了修改（添加了滚动视图）。仍然，它没有像我预期的那样工作。尽管添加了滚动视图，但对话框不会完全滚动。
该对话框还包含一个列表视图。
我的layout-land/dialog.xml如下。
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/transparent"
tools:context="customviews.VeriDocDialog">
<android.support.constraint.ConstraintLayout
android:layout_width="wrap_content"
android:layout_height="0dp"
android:background="@color/transparent"
app:layout_constraintBottom_toBottomOf="@id/center_fab_view"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent">
</android.support.constraint.ConstraintLayout>
<android.support.constraint.ConstraintLayout
android:id="@+id/top_fab_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:elevation="1dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageView
android:id="@+id/top_fab"
android:layout_width="56dp"
android:layout_height="56dp"
android:background="@drawable/round_bg"
android:scaleType="center"
android:src="@drawable/share_24" />
</android.support.constraint.ConstraintLayout>
<View
android:id="@+id/center_fab_view"
android:layout_width="wrap_content"
android:layout_height="1dp"
app:layout_constraintCircle="@id/top_fab_layout" />
<android.support.constraint.ConstraintLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:background="@color/white"
app:layout_constraintBottom_toBottomOf="@id/top_fab_layout"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="@id/center_fab_view">
</android.support.constraint.ConstraintLayout>
<ImageView
android:id="@+id/img_close"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:elevation="5dp"
android:src="@drawable/cross_30"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/center_fab_view" />
<ScrollView
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/top_fab_layout">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
>
<TextView
android:id="@+id/dialog_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_margin="10dp"
android:textColor="@color/primary_text"
android:textSize="@dimen/textsize_xlarge"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="TITLE" />
<ImageView
android:id="@+id/img"
android:layout_width="45dp"
android:layout_height="wrap_content"
android:layout_below="@id/dialog_title"
android:layout_centerHorizontal="true"
android:src="@drawable/hr"
app:layout_constraintBottom_toTopOf="@id/tv_instruction"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/dialog_title" />
<TextView
android:id="@+id/tv_instruction"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/img"
android:layout_centerHorizontal="true"
android:layout_margin="5dp"
android:gravity="center"
android:lines="2"
android:text="invited friends \n to win more scrathches"
android:textColor="@color/primary_text"
android:textSize="@dimen/textsize_medium"
app:layout_constraintBottom_toTopOf="@id/center_text"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/img" />
<RelativeLayout
android:id="@+id/center_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/tv_instruction"
android:layout_centerHorizontal="true"
android:layout_margin="5dp"
app:layout_constraintBottom_toTopOf="@id/listview"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/tv_instruction">
<TextView
android:id="@+id/tv_equation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:gravity="center"
android:lines="2"
android:text="invite 1 = 2 Scratches"
android:textColor="@color/primary_text"
android:textSize="@dimen/textsize_medium" />
<TextView
android:id="@+id/tv_highlighted_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:gravity="center"
android:padding="5dp"
android:text="Facebook"
android:textColor="@color/blue_A200"
android:textSize="@dimen/textsize_regular"
android:visibility="gone" />
</RelativeLayout>
<View
android:id="@+id/view_above_listView"
android:layout_width="wrap_content"
android:layout_height="3dp"
android:layout_above="@+id/listview"
android:background="@drawable/primary_gradient_horizontal"
app:layout_constraintBottom_toTopOf="@id/listview" />
<ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="160dp"
android:layout_below="@id/center_text"
android:divider="@color/selected_gray"
android:dividerHeight="1dp"
app:layout_constraintBottom_toTopOf="@id/view_above_button"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/center_text" />
<TextView
android:id="@+id/tv_loading"
android:layout_width="match_parent"
android:layout_height="160dp"
android:layout_below="@id/center_text"
android:gravity="center"
android:text=""
android:textColor="@color/primary"
android:textSize="16sp"
android:visibility="gone"
app:layout_constraintBottom_toTopOf="@id/view_above_button"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/center_text" />
<View
android:id="@+id/view_above_button"
android:layout_width="wrap_content"
android:layout_height="3dp"
android:layout_above="@+id/btn_bottom"
android:background="@drawable/primary_gradient_horizontal"
app:layout_constraintBottom_toTopOf="@id/btn_bottom" />
<Button
android:id="@+id/btn_bottom"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/listview"
android:background="@color/selected_gray"
android:text="invite"
android:textColor="@color/primary_text"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/listview" />
</RelativeLayout>
</ScrollView>
</android.support.constraint.ConstraintLayout>
Dialog 在纵向模式下的外观 see here 对比。
Dialog 在横向模式下的外观 see here
我的VeriDocDialog.java代码如下
public class VeriDocDialog extends Dialog {
private View dialogView;
public VeriDocDialog(@NonNull Context context, String dialogType, int iconDrawableId, String instructions,String bottomText, List<Contact> contactList, String buttonText) {
super(context);
this.context = context;
this.dialogType = dialogType;
this.iconDrawableId = iconDrawableId;
this.instruction = instructions;
this.buttonText = buttonText;
this.contactList = contactList;
this.bottomText = bottomText;
setupVeriDocDialog();
}
public VeriDocDialog(@NonNull Context context, String dialogType, int iconDrawableId, String instructions, String bottomText, List<ResolveInfo> shareList, String buttonText, Intent shareIntent) {
super(context);
this.context = context;
this.dialogType = dialogType;
this.iconDrawableId = iconDrawableId;
this.instruction = instructions;
this.buttonText = buttonText;
this.shareList = shareList;
this.bottomText = bottomText;
this.shareIntent = shareIntent;
setupVeriDocDialog();
}
private void setupVeriDocDialog() {
if (getWindow() != null) {
getWindow().setBackgroundDrawableResource (R.color.transparent);
getWindow().setGravity(Gravity.CENTER);
getWindow().getAttributes().windowAnimations = R.style.dialogAnimation;
requestWindowFeature(Window.FEATURE_NO_TITLE);
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
dialogView = getLayoutInflater().inflate(R.layout.dialog_veri_doc, null);
setContentView(dialogView);
bindView();
initialise(dialogType);
}
//.... and other methods .....
}
我如何从 activity 调用此对话框：
private void displayInviteDialog() {
contactList = new ArrayList<>();
inviteDialog = new VeriDocDialog(ScratchAndWinActivity.this,
VeriDocDialog.TYPE_INVITE,
R.drawable.invite_32,
getString(R.string.str_invite_instruction),
getString(R.string.str_equation_invite),
contactList, VeriDocDialog.TYPE_INVITE);
inviteDialog.show();
}
问题是布局不正确。我已经提到了 land 文件夹 too.and 中的 xml 布局也将视图放在 scrollview 中，但 scrollview 仍然不会将对话框滚动到底部。
是因为listview吗？如果是，请给我一些解决方案。如果不是，可能是什么原因以及如何克服这种情况？任何帮助将不胜感激。
当我尝试在横向方向打开对话框时，land 文件夹中的 xml 被夸大了。但是，当我以纵向打开对话框，然后更改方向时，xml 是相同的（在常规布局中相同，而不是来自 land 文件夹）。
请帮我解决这个问题。
在您的 VeriDocDialog class 中，转到方法
private void setupVeriDocDialog() {
if (getWindow() != null) {
getWindow().setBackgroundDrawableResource (R.color.transparent);
getWindow().setGravity(Gravity.CENTER);
getWindow().getAttributes().windowAnimations = R.style.dialogAnimation;
getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT); // Add this line and change your height & width acc.
//Moreover you can add margin to dialog from all directions.
requestWindowFeature(Window.FEATURE_NO_TITLE);
}
}
这将帮助您在横向模式下显示您的dialog，而不会有任何裁剪。
For changing margins to dialog,
//Add this before showing dialog.
WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
layoutParams.x = 10;// offset margin x in pixels, change value to whatever you want
layoutParams.y = 10;// offset margin y in pixels, change value to whatever you want
getWindow().setAttributes(layoutParams);
for reference WindowManager.LayoutParams
在我的layout\activity_main.xml中使用
<ScrollView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/scrollView"
android:visibility="visible">
....
</ScrollView>
在land\activity_main.xml
<HorizontalScrollView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/scrollView"
android:visibility="visible">
....
</HorizontalScrollView>
希望对您有所帮助..！
这是因为您的对话框在屏幕方向更改后没有重新创建。而且它有旧的资源布局。
对于解决方案，您可以检测方向更改 和重新创建对话框（如果已打开）。
您可以在 Activity 中使用 onConfigurationChanged 来检测方向变化。
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
} else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
}
if (inviteDialog !=null && inviteDialog.isShowing()){
inviteDialog .dismiss();
displayInviteDialog();
}
}
private void displayInviteDialog() {
contactList = new ArrayList<>();
inviteDialog = new VeriDocDialog(ScratchAndWinActivity.this,
VeriDocDialog.TYPE_INVITE,
R.drawable.invite_32,
getString(R.string.str_invite_instruction),
getString(R.string.str_equation_invite),
contactList, VeriDocDialog.TYPE_INVITE);
inviteDialog.show();
}
并稍微编辑一下您的清单 activity 注册。
<activity android:name=".YourActivity"
android:configChanges="orientation">
建议:
1> 您应该使用 match_parent 作为 Dialog 的父布局元素。
android:layout_width="match_parent"
android:layout_height="match_parent"
2> 也以编程方式设置对话框高度和宽度 match_parent。参见 this answer
更新
使用NestedScrollView而不是ScrollView，因为ListView本身有滚动属性，会引起冲突
更新
我创建了一个示例，它在两种模式下都工作正常，您会惊讶地发现我没有为对话框设置任何特殊的 属性 来使它工作。这是示例。
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.innovanathinklabs.sample.R;
/**
* Created by KHEMRAJ on 8/29/2018.
*/
public class ListActivity extends AppCompatActivity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
MyDialog dialog = new MyDialog(this);
dialog.show();
Window window = dialog.getWindow();
window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
}
public static class MyDialog extends Dialog {
String[] mobileArray = {
"Android", "IPhone", "WindowsMobile", "Blackberry",
"WebOS", "Ubuntu", "Windows7", "Max OS X", "Android", "IPhone", "WindowsMobile", "Blackberry",
"WebOS", "Ubuntu", "Windows7", "Max OS X", "Android", "IPhone", "WindowsMobile", "Blackberry",
"WebOS", "Ubuntu", "Windows7", "Max OS X",
};
public MyDialog(@NonNull Context context) {
super(context);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dialog_sample);
ArrayAdapter adapter = new ArrayAdapter<>(getContext(),
R.layout.row_list, mobileArray);
ListView listView = findViewById(R.id.listView);
listView.setAdapter(adapter);
}
}
}
和dialog_sample.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!--in this view, horizontal and vertical both dialog has scrollable List and other view looks static-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="5">
<!--place your all top content here-->
</LinearLayout>
<!--weight 1 is giving List view the available space. -->
<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="5"/>
<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/app_name"/>
</LinearLayout>
这是输出
请注意。
- 我没有处理方向，它按预期工作。
- 我设置了儿童观点的权重。所以它会自动适应两个方向。
- 您的 xml 布局中的问题是您没有使用 weights/percentage，因此内容超出了屏幕。
我希望我的自定义对话框在纵向和横向模式下都能工作。为此，我找到了在 layout-land 文件夹中创建 XML 的解决方案。所以，我复制了布局并将其粘贴到 layout-land 文件夹中并进行了修改（添加了滚动视图）。仍然，它没有像我预期的那样工作。尽管添加了滚动视图，但对话框不会完全滚动。
该对话框还包含一个列表视图。
我的layout-land/dialog.xml如下。
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/transparent"
tools:context="customviews.VeriDocDialog">
<android.support.constraint.ConstraintLayout
android:layout_width="wrap_content"
android:layout_height="0dp"
android:background="@color/transparent"
app:layout_constraintBottom_toBottomOf="@id/center_fab_view"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent">
</android.support.constraint.ConstraintLayout>
<android.support.constraint.ConstraintLayout
android:id="@+id/top_fab_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:elevation="1dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageView
android:id="@+id/top_fab"
android:layout_width="56dp"
android:layout_height="56dp"
android:background="@drawable/round_bg"
android:scaleType="center"
android:src="@drawable/share_24" />
</android.support.constraint.ConstraintLayout>
<View
android:id="@+id/center_fab_view"
android:layout_width="wrap_content"
android:layout_height="1dp"
app:layout_constraintCircle="@id/top_fab_layout" />
<android.support.constraint.ConstraintLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:background="@color/white"
app:layout_constraintBottom_toBottomOf="@id/top_fab_layout"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="@id/center_fab_view">
</android.support.constraint.ConstraintLayout>
<ImageView
android:id="@+id/img_close"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:elevation="5dp"
android:src="@drawable/cross_30"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/center_fab_view" />
<ScrollView
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/top_fab_layout">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
>
<TextView
android:id="@+id/dialog_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_margin="10dp"
android:textColor="@color/primary_text"
android:textSize="@dimen/textsize_xlarge"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="TITLE" />
<ImageView
android:id="@+id/img"
android:layout_width="45dp"
android:layout_height="wrap_content"
android:layout_below="@id/dialog_title"
android:layout_centerHorizontal="true"
android:src="@drawable/hr"
app:layout_constraintBottom_toTopOf="@id/tv_instruction"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/dialog_title" />
<TextView
android:id="@+id/tv_instruction"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/img"
android:layout_centerHorizontal="true"
android:layout_margin="5dp"
android:gravity="center"
android:lines="2"
android:text="invited friends \n to win more scrathches"
android:textColor="@color/primary_text"
android:textSize="@dimen/textsize_medium"
app:layout_constraintBottom_toTopOf="@id/center_text"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/img" />
<RelativeLayout
android:id="@+id/center_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/tv_instruction"
android:layout_centerHorizontal="true"
android:layout_margin="5dp"
app:layout_constraintBottom_toTopOf="@id/listview"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/tv_instruction">
<TextView
android:id="@+id/tv_equation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:gravity="center"
android:lines="2"
android:text="invite 1 = 2 Scratches"
android:textColor="@color/primary_text"
android:textSize="@dimen/textsize_medium" />
<TextView
android:id="@+id/tv_highlighted_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:gravity="center"
android:padding="5dp"
android:text="Facebook"
android:textColor="@color/blue_A200"
android:textSize="@dimen/textsize_regular"
android:visibility="gone" />
</RelativeLayout>
<View
android:id="@+id/view_above_listView"
android:layout_width="wrap_content"
android:layout_height="3dp"
android:layout_above="@+id/listview"
android:background="@drawable/primary_gradient_horizontal"
app:layout_constraintBottom_toTopOf="@id/listview" />
<ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="160dp"
android:layout_below="@id/center_text"
android:divider="@color/selected_gray"
android:dividerHeight="1dp"
app:layout_constraintBottom_toTopOf="@id/view_above_button"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/center_text" />
<TextView
android:id="@+id/tv_loading"
android:layout_width="match_parent"
android:layout_height="160dp"
android:layout_below="@id/center_text"
android:gravity="center"
android:text=""
android:textColor="@color/primary"
android:textSize="16sp"
android:visibility="gone"
app:layout_constraintBottom_toTopOf="@id/view_above_button"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/center_text" />
<View
android:id="@+id/view_above_button"
android:layout_width="wrap_content"
android:layout_height="3dp"
android:layout_above="@+id/btn_bottom"
android:background="@drawable/primary_gradient_horizontal"
app:layout_constraintBottom_toTopOf="@id/btn_bottom" />
<Button
android:id="@+id/btn_bottom"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/listview"
android:background="@color/selected_gray"
android:text="invite"
android:textColor="@color/primary_text"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/listview" />
</RelativeLayout>
</ScrollView>
</android.support.constraint.ConstraintLayout>
Dialog 在纵向模式下的外观 see here 对比。 Dialog 在横向模式下的外观 see here
我的VeriDocDialog.java代码如下
public class VeriDocDialog extends Dialog {
private View dialogView;
public VeriDocDialog(@NonNull Context context, String dialogType, int iconDrawableId, String instructions,String bottomText, List<Contact> contactList, String buttonText) {
super(context);
this.context = context;
this.dialogType = dialogType;
this.iconDrawableId = iconDrawableId;
this.instruction = instructions;
this.buttonText = buttonText;
this.contactList = contactList;
this.bottomText = bottomText;
setupVeriDocDialog();
}
public VeriDocDialog(@NonNull Context context, String dialogType, int iconDrawableId, String instructions, String bottomText, List<ResolveInfo> shareList, String buttonText, Intent shareIntent) {
super(context);
this.context = context;
this.dialogType = dialogType;
this.iconDrawableId = iconDrawableId;
this.instruction = instructions;
this.buttonText = buttonText;
this.shareList = shareList;
this.bottomText = bottomText;
this.shareIntent = shareIntent;
setupVeriDocDialog();
}
private void setupVeriDocDialog() {
if (getWindow() != null) {
getWindow().setBackgroundDrawableResource (R.color.transparent);
getWindow().setGravity(Gravity.CENTER);
getWindow().getAttributes().windowAnimations = R.style.dialogAnimation;
requestWindowFeature(Window.FEATURE_NO_TITLE);
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
dialogView = getLayoutInflater().inflate(R.layout.dialog_veri_doc, null);
setContentView(dialogView);
bindView();
initialise(dialogType);
}
//.... and other methods .....
}
我如何从 activity 调用此对话框：
private void displayInviteDialog() {
contactList = new ArrayList<>();
inviteDialog = new VeriDocDialog(ScratchAndWinActivity.this,
VeriDocDialog.TYPE_INVITE,
R.drawable.invite_32,
getString(R.string.str_invite_instruction),
getString(R.string.str_equation_invite),
contactList, VeriDocDialog.TYPE_INVITE);
inviteDialog.show();
}
问题是布局不正确。我已经提到了 land 文件夹 too.and 中的 xml 布局也将视图放在 scrollview 中，但 scrollview 仍然不会将对话框滚动到底部。
是因为listview吗？如果是，请给我一些解决方案。如果不是，可能是什么原因以及如何克服这种情况？任何帮助将不胜感激。
当我尝试在横向方向打开对话框时，land 文件夹中的 xml 被夸大了。但是，当我以纵向打开对话框，然后更改方向时，xml 是相同的（在常规布局中相同，而不是来自 land 文件夹）。
请帮我解决这个问题。
在您的 VeriDocDialog class 中，转到方法
private void setupVeriDocDialog() {
if (getWindow() != null) {
getWindow().setBackgroundDrawableResource (R.color.transparent);
getWindow().setGravity(Gravity.CENTER);
getWindow().getAttributes().windowAnimations = R.style.dialogAnimation;
getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT); // Add this line and change your height & width acc.
//Moreover you can add margin to dialog from all directions.
requestWindowFeature(Window.FEATURE_NO_TITLE);
}
}
这将帮助您在横向模式下显示您的dialog，而不会有任何裁剪。
For changing margins to
dialog,//Add this before showing dialog. WindowManager.LayoutParams layoutParams = getWindow().getAttributes(); layoutParams.x = 10;// offset margin x in pixels, change value to whatever you want layoutParams.y = 10;// offset margin y in pixels, change value to whatever you want getWindow().setAttributes(layoutParams);for reference WindowManager.LayoutParams
在我的layout\activity_main.xml中使用
<ScrollView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/scrollView"
android:visibility="visible">
....
</ScrollView>
在land\activity_main.xml
<HorizontalScrollView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/scrollView"
android:visibility="visible">
....
</HorizontalScrollView>
希望对您有所帮助..！
这是因为您的对话框在屏幕方向更改后没有重新创建。而且它有旧的资源布局。
对于解决方案，您可以检测方向更改 和重新创建对话框（如果已打开）。
您可以在 Activity 中使用 onConfigurationChanged 来检测方向变化。
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
} else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
}
if (inviteDialog !=null && inviteDialog.isShowing()){
inviteDialog .dismiss();
displayInviteDialog();
}
}
private void displayInviteDialog() {
contactList = new ArrayList<>();
inviteDialog = new VeriDocDialog(ScratchAndWinActivity.this,
VeriDocDialog.TYPE_INVITE,
R.drawable.invite_32,
getString(R.string.str_invite_instruction),
getString(R.string.str_equation_invite),
contactList, VeriDocDialog.TYPE_INVITE);
inviteDialog.show();
}
并稍微编辑一下您的清单 activity 注册。
<activity android:name=".YourActivity"
android:configChanges="orientation">
建议:
1> 您应该使用 match_parent 作为 Dialog 的父布局元素。
android:layout_width="match_parent"
android:layout_height="match_parent"
2> 也以编程方式设置对话框高度和宽度 match_parent。参见 this answer
更新
使用NestedScrollView而不是ScrollView，因为ListView本身有滚动属性，会引起冲突
更新
我创建了一个示例，它在两种模式下都工作正常，您会惊讶地发现我没有为对话框设置任何特殊的 属性 来使它工作。这是示例。
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.innovanathinklabs.sample.R;
/**
* Created by KHEMRAJ on 8/29/2018.
*/
public class ListActivity extends AppCompatActivity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
MyDialog dialog = new MyDialog(this);
dialog.show();
Window window = dialog.getWindow();
window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
}
public static class MyDialog extends Dialog {
String[] mobileArray = {
"Android", "IPhone", "WindowsMobile", "Blackberry",
"WebOS", "Ubuntu", "Windows7", "Max OS X", "Android", "IPhone", "WindowsMobile", "Blackberry",
"WebOS", "Ubuntu", "Windows7", "Max OS X", "Android", "IPhone", "WindowsMobile", "Blackberry",
"WebOS", "Ubuntu", "Windows7", "Max OS X",
};
public MyDialog(@NonNull Context context) {
super(context);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dialog_sample);
ArrayAdapter adapter = new ArrayAdapter<>(getContext(),
R.layout.row_list, mobileArray);
ListView listView = findViewById(R.id.listView);
listView.setAdapter(adapter);
}
}
}
和dialog_sample.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!--in this view, horizontal and vertical both dialog has scrollable List and other view looks static-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="5">
<!--place your all top content here-->
</LinearLayout>
<!--weight 1 is giving List view the available space. -->
<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="5"/>
<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/app_name"/>
</LinearLayout>
这是输出
请注意。
- 我没有处理方向，它按预期工作。
- 我设置了儿童观点的权重。所以它会自动适应两个方向。
- 您的 xml 布局中的问题是您没有使用 weights/percentage，因此内容超出了屏幕。