title: ClassCastException LinearLayout LayoutParams
body: <p>I got an Actionbar and some Fragments. The Problem is my Homescreen. There is an overview Fragment on the left side and a detail Fragment on the right side. My TabListener is Dynamic so i want to set the weight of my Layout programatically. Whenever i try to get the Layoutparams of my LinearLayout i get a ClassCastException:</p>
  
  <pre><code>12-22 16:00:37.620: W/System.err(7235): java.lang.ClassCastException: android.widget.FrameLayout$LayoutParams cannot be cast to android.widget.LinearLayout$LayoutParams
  12-22 16:00:37.625: W/System.err(7235):     at com.coover.eu.lostandfound.ListSearchFragment.onViewCreated(ListSearchFragment.java:184)
  12-22 16:00:37.625: W/System.err(7235):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:884)
  12-22 16:00:37.630: W/System.err(7235):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1080)
  12-22 16:00:37.630: W/System.err(7235):     at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:622)
  12-22 16:00:37.630: W/System.err(7235):     at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1416)
  12-22 16:00:37.630: W/System.err(7235):     at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:505)
  12-22 16:00:37.630: W/System.err(7235):     at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1178)
  12-22 16:00:37.635: W/System.err(7235):     at android.app.Activity.performStart(Activity.java:5216)
  12-22 16:00:37.635: W/System.err(7235):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2083)
  12-22 16:00:37.635: W/System.err(7235):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135)
  12-22 16:00:37.635: W/System.err(7235):     at android.app.ActivityThread.access$700(ActivityThread.java:140)
  12-22 16:00:37.635: W/System.err(7235):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1237)
  12-22 16:00:37.640: W/System.err(7235):     at android.os.Handler.dispatchMessage(Handler.java:99)
  12-22 16:00:37.640: W/System.err(7235):     at android.os.Looper.loop(Looper.java:137)
  12-22 16:00:37.640: W/System.err(7235):     at android.app.ActivityThread.main(ActivityThread.java:4921)
  12-22 16:00:37.640: W/System.err(7235):     at java.lang.reflect.Method.invokeNative(Native Method)
  12-22 16:00:37.640: W/System.err(7235):     at java.lang.reflect.Method.invoke(Method.java:511)
  12-22 16:00:37.645: W/System.err(7235):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
  12-22 16:00:37.645: W/System.err(7235):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
  12-22 16:00:37.645: W/System.err(7235):     at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>The Layout that is inflated:</p>
  
  <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:orientation="vertical" 
      android:id="@+id/container_found_list_overview"&gt;
  
      &lt;EditText android:id="@+id/search_box" 
          android:layout_width="fill_parent"
          android:layout_height="50dp"
          android:padding="5dp"
          android:textSize="35sp"
          android:hint="@string/search"
          android:inputType="text"
          android:maxLines="1"/&gt;
      &lt;ListView 
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:id="@+id/overview_list_view"&gt;
      &lt;/ListView&gt;
  
  &lt;/LinearLayout&gt; 
  </code></pre>
  
  <p>The code:</p>
  
  <pre><code>
              LinearLayout myView = (LinearLayout)this.getView().findViewById(R.id.container_found_list_overview);
              Log.d("found container", ""+(myView != null));
              try{
                  LayoutParams lp = (LayoutParams) myView.getLayoutParams();
                  lp.weight = 1;
                  lp.width = 0;
                  myView.setLayoutParams(lp);
              }
              catch(RuntimeException e){
                  Log.e("cant get layoutparams",e.getMessage());
                  e.printStackTrace();
              }
  </code></pre>