DrawerLayoutを閉じると例外が発生する：LinearLayoutをDrawerLayoutにキャストできない

Question

ListViewを含むカスタムDrawerLayoutを作成しようとしているが、動作させることができない。 LinearLayoutのコンテンツをラップしてよりカスタムにし、ListViewの上にImageを追加する前に、それを動作させることができました。

linearLayoutを渡している間にcloseDrawer（）を試行したときにこの例外が発生していますが、この種の問題については複数の投稿がありましたが、ほとんどの場合、LinearLayoutをcloseDrawer（）関数、私はすでにやっている：ここで

04-05 12:17:10.100 18879-18879/com.plante.android.cobalt E/AndroidRuntime: FATAL EXCEPTION: main 
Process: com.plante.android.cobalt, PID: 18879 
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.plante.android.cobalt/com.plante.android.cobalt.activityv2.ActivityHome}: java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams cannot be cast to android.support.v4.widget.DrawerLayout$LayoutParams 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
    at android.app.ActivityThread.-wrap11(ActivityThread.java) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5417) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
    Caused by: java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams cannot be cast to android.support.v4.widget.DrawerLayout$LayoutParams 
    at android.support.v4.widget.DrawerLayout.isDrawerView(DrawerLayout.java:1415) 
    at android.support.v4.widget.DrawerLayout.closeDrawer(DrawerLayout.java:1630) 
    at com.plante.android.cobalt.activityv2.ActivityHome.selectItem(ActivityHome.java:190) 
    at com.plante.android.cobalt.activityv2.ActivityHome.onCreate(ActivityHome.java:155) 
    at android.app.Activity.performCreate(Activity.java:6251) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
    at android.app.ActivityThread.-wrap11(ActivityThread.java) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5417) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

は私の活動である：ここでは

@Bind(R.id.drawer_layout) 
DrawerLayout mDrawerLayout; 
@Bind(R.id.actionToolbar) 
Toolbar toolbar; 
@Bind(R.id.left_drawer_item) 
LinearLayout mDrawerLinear; 
@Bind(R.id.left_drawer_child) 
ListView mDrawerListChild; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_v2_home); 
    ButterKnife.bind(this); 

    setSupportActionBar(toolbar); 
    getSupportActionBar().setTitle(getResources().getString(R.string.app_name)); 
    getSupportActionBar().setDisplayHomeAsUpEnabled(true); 
    getSupportActionBar().setHomeButtonEnabled(true); 

    mPlanTitles = getResources().getStringArray(R.array.plan_list); 

    mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); 
    // set up the drawer's list view with items and click listener 
    ArrayList<String> myList = new ArrayList<>(); 
    myList.add("First Item"); 
    myList.add("Second Item"); 
    mDrawerListChild.setAdapter(new DrawerListAdapter(this, R.layout.drawer_layout_item, myList)); 
    mDrawerListChild.setOnItemClickListener(new DrawerItemClickListener()); 

    // enable ActionBar app icon to behave as action to toggle nav drawer 

    mDrawerToggle = new ActionBarDrawerToggle(
      this,     /* host Activity */ 
      mDrawerLayout,   /* DrawerLayout object */ 
      toolbar, /* nav drawer image to replace 'Up' caret */ 
      R.string.drawer_open, /* "open drawer" description for accessibility */ 
      R.string.drawer_close /* "close drawer" description for accessibility */ 
    ) { 
     public void onDrawerClosed(View view) { 
      //syncActionBarArrowState(); 
     } 

     public void onDrawerOpened(View drawerView) { 
      //mDrawerToggle.setDrawerIndicatorEnabled(true); 
     } 
    }; 
    getSupportFragmentManager().addOnBackStackChangedListener(mOnBackStackChangedListener); 
    mDrawerLayout.setDrawerListener(mDrawerToggle); 
    setSupportActionBar(toolbar); 
    user = getUser(); 

    if (savedInstanceState == null) { 
     selectItem(0); 
    } 

} 


private void selectItem(int position) { 
    BackHandledFragment fragment = new FragmentMobilePlan(); 
    setSelectedFragment(fragment); 

    FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); 
    ft.setCustomAnimations(R.anim.pull_in_right, R.anim.push_out_left, R.anim.pull_in_left, R.anim.push_out_right); 
    ft.replace(R.id.content_frame, fragment) 
      .commit(); 

    // update selected item and title, then close the drawer 
    mDrawerListChild.setItemChecked(position, true); 
    setTitle(mPlanTitles[position]); 
    mDrawerLayout.closeDrawer(mDrawerLinear); 
} 

は私のレイアウトです：

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/drawer_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context=".MainActivity"> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:gravity="center" 
     android:orientation="vertical"> 

     <include layout="@layout/action_bar" /> 

     <FrameLayout 
      android:id="@+id/content_frame" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" /> 

     <LinearLayout 
      android:id="@+id/left_drawer_item" 
      android:layout_width="200dp" 
      android:layout_height="match_parent" 
      android:layout_gravity="start" 
      android:orientation="vertical"> 

      <ImageView 
       android:id="@+id/profilIcon" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:src="@drawable/ic_people1blue2x" /> 

      <ListView 
       android:id="@+id/left_drawer_child" 
       android:layout_width="match_parent" 
       android:layout_height="match_parent" 
       android:choiceMode="singleChoice" 
       android:divider="@android:color/transparent" 
       android:dividerHeight="0dp" 
       android:background="#111" /> 

     </LinearLayout> 

    </LinearLayout> 

</android.support.v4.widget.DrawerLayout> 

Answer 1

私がcloseDrawer（）のDrawerLayoutに渡したLinearLayoutがXMLのDrawerLayoutの2番目の子ではなかったため、同じ問題を抱えている人にとっては、この例外が発生していました。それはdrawerLayoutの中に直接なければなりませんでした。 [android.support.v4.widget.DrawerLayout $ LayoutParamsにClassCastExceptionがandroid.widget.FrameLayout $ LayoutParams]（の