Im使用android支持设计库中的新NavigationView。它工作得很好，但当我试图将其设置为从右侧滑动时，它会崩溃，出现异常：
java.lang.IllegalArgumentException: No drawer view found with gravity LEFT
我的主要布局：
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/navigationDrawer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include layout="@layout/activity_main_content" />
<android.support.design.widget.NavigationView
android:id="@+id/navigationView"
style="@style/NavigationView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="right"
app:headerLayout="@layout/header"
app:menu="@menu/menu_drawer"/>
</android.support.v4.widget.DrawerLayout>
有人知道如何改变这一点吗？我试着把"layout_gravity"改为"end"，但它给了我同样的错误。
编辑：完整logcat:
java.lang.IllegalArgumentException: No drawer view found with gravity LEFT
at android.support.v4.widget.DrawerLayout.openDrawer(DrawerLayout.java:1322)
at android.support.v7.app.ActionBarDrawerToggle.toggle(ActionBarDrawerToggle.java:289)
at android.support.v7.app.ActionBarDrawerToggle.access$100(ActionBarDrawerToggle.java:65)
at android.support.v7.app.ActionBarDrawerToggle$1.onClick(ActionBarDrawerToggle.java:201)
at android.view.View.performClick(View.java:4754)
at android.view.View$PerformClick.run(View.java:19605)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5635)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
at dalvik.system.NativeStart.main(Native Method)
activity_main_content.xml：
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<include layout="@layout/toolbar" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="@+id/mainScreenFragmentContainer"
style="@style/MainScreenFragmentContainer"
android:layout_marginTop="?attr/actionBarSize"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="end"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header"
app:menu="@menu/drawer_view" />
您应该确保android:layout_gravity="end"
使用android:layout_gravity="end"。
import android.support.v4.widget.DrawerLayout;
private DrawerLayout drawerLayout;
drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
drawerListener = new ActionBarDrawerToggle(this, drawerLayout,
R.drawable.ic_drawer2, R.string.drawer_open,
R.string.drawer_close) {
@Override
public void onDrawerClosed(View drawerView) {
Toast.makeText(NavigationDrawerActivity.this, "on drawer close",
Toast.LENGTH_SHORT).show();
}
@Override
public void onDrawerOpened(View drawerView) {
Toast.makeText(NavigationDrawerActivity.this, "on drawer open",
Toast.LENGTH_SHORT).show();
}
};
drawerLayout.setDrawerListener(drawerListener);
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerListener.syncState();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if(drawerListener.onOptionsItemSelected(item)){
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
drawerListener.onConfigurationChanged(newConfig);
}