导航抽屉,监听item点击事件
Navigation drawer, listen to item clicked events
我有这个菜单布局"navigation_menu.xml":
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/item1"
android:title="@string/item1"/>
<item
android:id="@+id/item2"
android:title="@string/item2"/>
<item
android:id="@+id/item3"
android:title="@string/item3"/>
</menu>
我的主要 activity 布局 "activity_main.xml" 是这样的:
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".MainActivity">
<android.support.design.widget.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
app:menu="@menu/navigation_menu"
android:layout_gravity="start">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
这是 activity 主要的 Java 代码,我在其中初始化抽屉:
private DrawerLayout drawer_layout;
private ActionBarDrawerToggle toggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
// ...
drawer_layout = (DrawerLayout)findViewById(R.id.drawer_layout);
toggle = new ActionBarDrawerToggle(this, drawer_layout, R
.string.open_drawer, R.string.close_drawer);
drawer_layout.addDrawerListener(toggle);
toggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
// ...
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (toggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
抽屉可以正确打开和关闭,但是我不知道点击某个项目时如何做某事,例如显示日志。
有人知道吗?
谢谢
使用 onNavigationItemSelected() 方法处理 Navigation Drawer Item Click。请参阅下面的代码。
private NavigationView mNavigationView;
@Override
protected void onCreate(Bundle savedInstanceState)
{
// ...
mNavigationView = (NavigationView) findViewById(R.id.nav_view);
mNavigationView.setNavigationItemSelectedListener(this);// you need to set Listener.
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item)
{
// mDrawer.closeDrawer(GravityCompat.START);
switch (item.getItemId()) {
case R.id.item1: {
}
break;
case R.id.item2: {
}
break;
case R.id.item3: {
}
break;
}
return true;
}
我有这个菜单布局"navigation_menu.xml":
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/item1"
android:title="@string/item1"/>
<item
android:id="@+id/item2"
android:title="@string/item2"/>
<item
android:id="@+id/item3"
android:title="@string/item3"/>
</menu>
我的主要 activity 布局 "activity_main.xml" 是这样的:
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".MainActivity">
<android.support.design.widget.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
app:menu="@menu/navigation_menu"
android:layout_gravity="start">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
这是 activity 主要的 Java 代码,我在其中初始化抽屉:
private DrawerLayout drawer_layout;
private ActionBarDrawerToggle toggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
// ...
drawer_layout = (DrawerLayout)findViewById(R.id.drawer_layout);
toggle = new ActionBarDrawerToggle(this, drawer_layout, R
.string.open_drawer, R.string.close_drawer);
drawer_layout.addDrawerListener(toggle);
toggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
// ...
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (toggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
抽屉可以正确打开和关闭,但是我不知道点击某个项目时如何做某事,例如显示日志。
有人知道吗?
谢谢
使用 onNavigationItemSelected() 方法处理 Navigation Drawer Item Click。请参阅下面的代码。
private NavigationView mNavigationView;
@Override
protected void onCreate(Bundle savedInstanceState)
{
// ...
mNavigationView = (NavigationView) findViewById(R.id.nav_view);
mNavigationView.setNavigationItemSelectedListener(this);// you need to set Listener.
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item)
{
// mDrawer.closeDrawer(GravityCompat.START);
switch (item.getItemId()) {
case R.id.item1: {
}
break;
case R.id.item2: {
}
break;
case R.id.item3: {
}
break;
}
return true;
}