Der Fehler über DrawerLayout (IllegalArgumentException: View android.widget.RelativeLayout ist kein gleitendes Fach)

Question

Ich lerne, wie Sie die Navigationsschublade für Android verwenden. Ich habe eine relativeLayout in der Layout-XML-Datei erstellt und die beiden Teile (FrameLayout und Listview) in RelativeLayout platziert.

java.lang.RuntimeException:: Kann Aktivität ComponentInfo {com.example.slidingtest/com.slidingmenu.MainActivity} starten: java.lang.IllegalArgumentException: Aber ich bin den folgenden Fehler bekommen Ansicht android.widget .RelativeLayout @ 423c0dc0 ist kein Gleitschublade

ClassCastException android.widget.FrameLayout$LayoutParams to android.support.v4.widget.DrawerLayout$LayoutParams

ich diese Webseite zu finden, aber noch kann mein peoblem nicht lösen. Kann mir jemand helfen? Danke ...

Das ist mein MainActivity.java

public class MainActivity extends Activity { 

private DrawerLayout mDrawerLayout; 
private RelativeLayout relativeLayout; 
private ListView mDrawerList; 
private ActionBarDrawerToggle mDrawerToggle; 

private CharSequence mDrawerTitle; 
private CharSequence mTitle; 

private String[] navMenuTitles; 
private TypedArray navMenuIcons; 

private ArrayList<NavDrawerItem> navDrawerItems; 
private NavDrawerListAdapter adapter; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    relativeLayout = (RelativeLayout)findViewById(R.id.sv_left_menu); 

    mTitle = mDrawerTitle = getTitle(); 

    navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items); 
    navMenuIcons = getResources().obtainTypedArray(R.array.nav_drawer_icons); 

    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); 
    mDrawerList = (ListView) findViewById(R.id.list_slidermenu); 

    navDrawerItems = new ArrayList<NavDrawerItem>(); 
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1))); 
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1))); 
    navMenuIcons.recycle(); 

    mDrawerList.setOnItemClickListener(new SlideMenuClickListener()); 

    adapter = new NavDrawerListAdapter(getApplicationContext(), 
      navDrawerItems); 
    mDrawerList.setAdapter(adapter); 

    getActionBar().setDisplayHomeAsUpEnabled(true); 
    getActionBar().setHomeButtonEnabled(true); 

    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, 
      R.drawable.ic_drawer, 
      R.string.app_name, 
      R.string.app_name 
    ) { 
     public void onDrawerClosed(View view) { 
      getActionBar().setTitle(mTitle); 

      invalidateOptionsMenu(); 
     } 

     public void onDrawerOpened(View drawerView) { 
      getActionBar().setTitle(mDrawerTitle); 

      invalidateOptionsMenu(); 
     } 
    }; 
    mDrawerLayout.setDrawerListener(mDrawerToggle); 

    if (savedInstanceState == null) { 

     displayView(0); 
    } 
} 

private class SlideMenuClickListener implements 
     ListView.OnItemClickListener { 
    @Override 
    public void onItemClick(AdapterView<?> parent, View view, int position, 
      long id) { 
     displayView(position); 
    } 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    if (mDrawerToggle.onOptionsItemSelected(item)) { 
     return true; 
    } 

    switch (item.getItemId()) { 
    case R.id.action_settings: 
     return true; 
    default: 
     return super.onOptionsItemSelected(item); 
    } 
} 

@Override 
public boolean onPrepareOptionsMenu(Menu menu) { 
    boolean drawerOpen = mDrawerLayout.isDrawerOpen(this.relativeLayout); 
    menu.findItem(R.id.action_settings).setVisible(!drawerOpen); 
    return super.onPrepareOptionsMenu(menu); 
} 

private void displayView(int position) { 
    Fragment fragment = null; 
    switch (position) { 
    case 0: 
     fragment = new HomeFragment(); 
     break; 
    case 1: 
     fragment = new FindPeopleFragment(); 
     break; 

    default: 
     break; 
    } 

    if (fragment != null) { 
     FragmentManager fragmentManager = getFragmentManager(); 
     fragmentManager.beginTransaction() 
       .replace(R.id.frame_container, fragment).commit(); 

     mDrawerList.setItemChecked(position, true); 
     mDrawerList.setSelection(position); 
     setTitle(navMenuTitles[position]); 
     mDrawerLayout.closeDrawer(relativeLayout); 
    } else { 
     Log.e("MainActivity", "Error in creating fragment"); 
    } 
} 

@Override 
public void setTitle(CharSequence title) { 
    mTitle = title; 
    getActionBar().setTitle(mTitle); 
} 

@Override 
protected void onPostCreate(Bundle savedInstanceState) { 
    super.onPostCreate(savedInstanceState); 

    mDrawerToggle.syncState(); 
} 

@Override 
public void onConfigurationChanged(Configuration newConfig) { 
    super.onConfigurationChanged(newConfig); 

    mDrawerToggle.onConfigurationChanged(newConfig); 
} 

}

activity_main.xml

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

<!-- Framelayout to display Fragments --> 

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

<!-- Listview to display slider menu --> 

<RelativeLayout 
    android:id="@+id/sv_left_menu" 
    android:layout_width="240dp" 
    android:layout_height="match_parent" 
    android:background="#191f23" 
    android:scrollbars="none" > 

    <FrameLayout 
     android:id="@+id/fl" 
     android:layout_width="240dp" 
     android:layout_height="wrap_content" > 

     <ImageView 
      android:id="@+id/iv_background" 
      android:layout_width="match_parent" 
      android:layout_height="180dp" 
      android:adjustViewBounds="true" 
      android:background="@drawable/circleimage_bg" 
      android:scaleType="centerCrop" /> 

     <RelativeLayout 
      android:id="@+id/rl" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_gravity="bottom" 
      android:layout_marginBottom="45dp" > 

      <com.sliding.navdrawer.CircleImageView 
       xmlns:app="http://schemas.android.com/apk/res-auto" 
       android:id="@+id/profile_image" 
       android:layout_width="85dp" 
       android:layout_height="85dp" 
       android:layout_marginLeft="20dp" 
       android:src="@drawable/kaola" 
       app:border_color="#20ffffff" 
       app:border_width="1dp" /> 

      <LinearLayout 
       android:id="@+id/signature_txt" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_centerVertical="true" 
       android:layout_marginLeft="10dp" 
       android:layout_toRightOf="@+id/profile_image" 
       android:gravity="right" 
       android:orientation="vertical" > 

       <TextView 
        android:id="@+id/name" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:layout_marginLeft="4dp" 
        android:layout_marginTop="4dp" 
        android:text="Kevin" 
        android:textColor="@android:color/white" 
        android:textSize="20sp" /> 

       <TextView 
        android:id="@+id/level" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:layout_below="@+id/name" 
        android:layout_marginLeft="4dp" 
        android:text="Stu" 
        android:textColor="@android:color/white" 
        android:textSize="16sp" /> 
      </LinearLayout> 

      <View 
       android:layout_width="5dp" 
       android:layout_height="40dp" 
       android:layout_alignParentRight="true" 
       android:layout_centerVertical="true" 
       android:layout_marginRight="20dp" 
       android:background="#ff0000" /> 
     </RelativeLayout> 

     <LinearLayout 
      android:layout_width="match_parent" 
      android:layout_height="40dp" 
      android:layout_gravity="bottom" 
      android:background="@drawable/signature_bg_gradient" 
      android:orientation="vertical" > 

      <View 
       android:layout_width="match_parent" 
       android:layout_height="0.5dp" 
       android:background="#80e5e5e5" /> 

      <LinearLayout 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:layout_weight="1" 
       android:orientation="horizontal" > 

       <ImageView 
        android:layout_width="20dp" 
        android:layout_height="20dp" 
        android:layout_gravity="center_vertical" 
        android:layout_marginLeft="22dp" 
        android:gravity="center_vertical" 
        android:scaleType="fitXY" 
        android:src="@drawable/signature_mark" /> 

       <TextView 
        android:layout_width="match_parent" 
        android:layout_height="match_parent" 
        android:layout_marginLeft="4dp" 
        android:gravity="center_vertical" 
        android:text="Hello world!" 
        android:textColor="#969696" 
        android:textSize="12sp" /> 
      </LinearLayout> 

      <View 
       android:layout_width="match_parent" 
       android:layout_height="0.5dp" 
       android:background="#80e5e5e5" /> 
     </LinearLayout> 
    </FrameLayout> 

    <ListView 
     android:id="@+id/list_slidermenu" 
     android:layout_width="240dp" 
     android:layout_height="match_parent" 
     android:layout_below="@+id/fl" 
     android:layout_gravity="start" 
     android:background="@color/list_background" 
     android:choiceMode="singleChoice" 
     android:divider="@color/list_divider" 
     android:dividerHeight="1dp" 
     android:listSelector="@drawable/list_selector" /> 
</RelativeLayout> 

Logcat:

11-24 21:27:34.295: E/AndroidRuntime(5050): FATAL EXCEPTION: main 
11-24 21:27:34.295: E/AndroidRuntime(5050): java.lang.RuntimeException: Unable to start  activity ComponentInfo{com.example.slidingtest/com.slidingmenu.MainActivity}:  java.lang.IllegalArgumentException: View android.widget.RelativeLayout@423c0dc0 is not a sliding drawer 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2081) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2106) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.app.ActivityThread.access$600(ActivityThread.java:137) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1202) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.os.Handler.dispatchMessage(Handler.java:99) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.os.Looper.loop(Looper.java:137) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.app.ActivityThread.main(ActivityThread.java:4897) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at java.lang.reflect.Method.invokeNative(Native Method) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at java.lang.reflect.Method.invoke(Method.java:511) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:808) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:575) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at dalvik.system.NativeStart.main(Native Method) 
11-24 21:27:34.295: E/AndroidRuntime(5050): Caused by: java.lang.IllegalArgumentException: View android.widget.RelativeLayout@423c0dc0 is not a sliding drawer 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.support.v4.widget.DrawerLayout.closeDrawer(DrawerLayout.java:1170) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at com.slidingmenu.MainActivity.displayView(MainActivity.java:155) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at com.slidingmenu.MainActivity.onCreate(MainActivity.java:93) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.app.Activity.performCreate(Activity.java:5084) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at com.lbe.security.service.core.client.b.x.callActivityOnCreate(Unknown Source) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2045) 
11-24 21:27:34.295: E/AndroidRuntime(5050):  ... 11 more 

Answer 1

Wow Das DrawerLayout erfordert dieses Element ein Android haben: layout_gravity darauf setzen, also sollte ich die Schwerkraft bei RelativeLayout gesetzt.

android:layout_gravity="start"