title: Sliding Drawer Application Exiting
body: <p>For my application I need to create a sliding drawer for groups of button, but when I run the code it shows force to close warning..My Xml look like </p>
  
  <pre><code> &lt;?xml version="1.0" encoding="utf-8"?&gt;
    &lt;FrameLayout
         android:visibility="visible"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent" 
         xmlns:android="http://schemas.android.com/apk/res/android"&gt;
  
    &lt;com.measure.sizemesurment2.MyView
       android:id="@+id/DrawViewId"
       android:layout_width="fill_parent"
       android:layout_height="fill_parent"&gt;
      &lt;/com.measure.sizemesurment2.MyView &gt;
  
      &lt;SlidingDrawer
        android:id="@+id/drawer"
         android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:handle="@+id/handle"
        android:content="@+id/content"&gt;
  
       &lt;ImageView 
          android:id="@id/handle"
          android:layout_width="wrap_content"
          android:layout_height="fill_parent" 
          android:src="@drawable/drawer"/&gt;
  
     &lt;RelativeLayout
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
         android:orientation="horizontal"
         android:gravity="bottom"&gt;
  
  
  
    &lt;ImageButton
          android:id="@+id/left"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentBottom="true"
          android:onClick="ButtonOnClick"                    
          android:src="@drawable/left" /&gt;
  
      &lt;ImageButton
          android:id="@+id/right"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentBottom="true"
          android:layout_marginLeft="40dp"
          android:onClick="ButtonOnClick"                    
          android:src="@drawable/right" /&gt;
  
     &lt;ImageButton
          android:id="@+id/up"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentBottom="true"
          android:layout_marginLeft="80dp" 
          android:onClick="ButtonOnClick"                                   
          android:src="@drawable/up" /&gt;
  
        &lt;ImageButton
           android:id="@+id/down"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_alignParentBottom="true"
           android:layout_marginLeft="120dp"   
           android:onClick="ButtonOnClick"                    
           android:src="@drawable/down" /&gt;
  
     &lt;Button
          android:id="@+id/plus"
          android:layout_width="40dp"
          android:layout_height="wrap_content"
          android:layout_alignParentBottom="true"
          android:layout_marginLeft="180dp"  
          android:textSize="20dp"  
          android:onClick="ButtonOnClick"              
          android:text="+" 
        /&gt;
  
     &lt;Button
         android:id="@+id/minus"
         android:layout_width="40dp"
         android:layout_height="wrap_content"
         android:layout_alignParentBottom="true"
         android:layout_marginLeft="220dp"
         android:textSize="20dp"  
         android:onClick="ButtonOnClick"                    
         android:text="-" /&gt;
  
     &lt;Button
        android:id="@+id/ok"
        android:layout_width="60dp"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_marginLeft="260dp"  
        android:textSize="20dp"  
        android:onClick="ButtonOnClick"                        
        android:text="OK" /&gt;
      &lt;/RelativeLayout&gt;
    &lt;/SlidingDrawer&gt;
  
    &lt;/FrameLayout&gt;
  </code></pre>
  
  <p>where MyView class used for canvas drawing..
  Am right in the case of above xml file...Any help will be appreciated.....
  Thanks in advance..... </p>
  
  <p>here is my logcat</p>
  
  <pre><code>10-22 17:40:17.810: D/dalvikvm(6384): GC_EXTERNAL_ALLOC freed 1K, 44% free   3371K/5959K, external 1801K/1925K, paused 31ms
  10-22 17:40:17.860: I/Camera(6384): handleMessage: 16
  10-22 17:40:17.952: I/Camera(6384): handleMessage: 16
  10-22 17:40:17.979: I/Sample::Activity(6384): onPause
  10-22 17:40:17.979: I/Sample::SurfaceView(6384): releaseCamera
  10-22 17:40:18.017: D/IPCThreadState(6384): [DN #5] BR_CLEAR_DEATH_NOTIFICATION_DONE cookie 0x1772a0
  10-22 17:40:18.193: D/AndroidRuntime(6384): Shutting down VM
  10-22 17:40:18.194: W/dalvikvm(6384): threadid=1: thread exiting with uncaught exception (group=0x4001b6a8)
  10-22 17:40:18.200: E/AndroidRuntime(6384): FATAL EXCEPTION: main
  10-22 17:40:18.200: E/AndroidRuntime(6384): java.lang.RuntimeException: Unable to start activity    ComponentInfo{com.measure.sizemesurment2/com.measure.sizemesurment2.MesureSizeActivity}: java.lang.IllegalArgumentException: The content attribute is must refer to an existing child.
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1740)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1759)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.app.ActivityThread.access$1500(ActivityThread.java:155)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:999)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.os.Handler.dispatchMessage(Handler.java:130)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.os.Looper.loop(SourceFile:351)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.app.ActivityThread.main(ActivityThread.java:3826)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at java.lang.reflect.Method.invokeNative(Native Method)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at java.lang.reflect.Method.invoke(Method.java:538)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:969)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:727)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at dalvik.system.NativeStart.main(Native Method)
  10-22 17:40:18.200: E/AndroidRuntime(6384): Caused by: java.lang.IllegalArgumentException: The content attribute is must refer to an existing child.
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.widget.SlidingDrawer.onFinishInflate(SlidingDrawer.java:277)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:662)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:657)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.view.LayoutInflater.inflate(LayoutInflater.java:439)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.view.LayoutInflater.inflate(LayoutInflater.java:351)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.view.LayoutInflater.inflate(LayoutInflater.java:307)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:253)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.app.Activity.setContentView(Activity.java:1703)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at com.measure.sizemesurment2.MesureSizeActivity.onCreate(MesureSizeActivity.java:55)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1082)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1704)
  10-22 17:40:18.200: E/AndroidRuntime(6384):     ... 11 more
  10-22 17:40:18.203: E/dalvikvm(6384): [DVM] mmap return base = 45374000
  10-22 17:40:18.246: D/dalvikvm(6384): GC_CONCURRENT freed 442K, 48% free 3139K/6023K, external 1206K/1925K, paused 2ms+17ms
  </code></pre>