title: Android Set textview layout width dynamically
body: <p>I have a listview that consists of two textviews. One for dates, one for names.
  Config.xml includes the listview:</p>
  
  <pre><code>&lt;ListView android:id="@+id/ListView01" 
  android:layout_width="wrap_content" 
  android:layout_height="wrap_content"
  android:layout_below="@+id/linlay"&gt;
  &lt;/ListView&gt;
  </code></pre>
  
  <p>Row.xml includes the two textviews:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  
  &lt;LinearLayout
       xmlns:android="http://schemas.android.com/apk/res/android"
       android:paddingTop="4dip"
       android:paddingBottom="6dip"
       android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       android:orientation="horizontal"&gt;
   &lt;LinearLayout android:orientation="horizontal"
      android:id="@+id/linlay"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"&gt;
       &lt;TextView android:id="@+id/left"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
         /&gt;
  
       &lt;TextView android:id="@+id/right"
           android:layout_width="wrap_content"
           android:layout_height="fill_parent"/&gt;
    &lt;/LinearLayout&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>I have two more buttons to change the content of the textviews with each other but as the content of the first one (initially) is wider than the second one, i need to set the width of the layout in the code.
  Unfortunately there is no txt.setLayoutWidth or similar command, and txt.setWidth() is not working.
  I need something like this in this code:</p>
  
  <pre><code> Button sortname = (Button)findViewById(R.id.Button02);
    sortname.setOnClickListener(new View.OnClickListener() 
    {
      public void onClick(View v) 
      {
          lv1.setAdapter(simpleAdapter2);
              LinearLayout.LayoutParams layoutparams = new LinearLayout.LayoutParams(200,120);
          txt1.setLayoutParams(layoutparams);
      }
    });
  </code></pre>
  
  <p>This two rows makes the app freeze (stopped unexpectedly):</p>
  
  <pre><code>LinearLayout.LayoutParams layoutparams = new LinearLayout.LayoutParams(200,120);
      txt1.setLayoutParams(layoutparams);
  </code></pre>
  
  <p>Logcat:</p>
  
  <pre><code>02-05 22:58:11.040: INFO/ActivityManager(58): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.bfarago.nevnap/.MainActivity }
  02-05 22:58:11.210: DEBUG/AndroidRuntime(415): Shutting down VM
  02-05 22:58:11.230: DEBUG/dalvikvm(415): Debugger has detached; object registry had 1 entries
  02-05 22:58:11.330: INFO/AndroidRuntime(415): NOTE: attach of thread 'Binder Thread #3' failed
  02-05 22:58:12.310: INFO/ActivityManager(58): Displayed activity com.bfarago.nevnap/.MainActivity: 1108 ms (total 1108 ms)
  02-05 22:58:17.560: DEBUG/dalvikvm(125): GC_EXPLICIT freed 1274 objects / 73520 bytes in 185ms
  02-05 22:58:17.660: DEBUG/AndroidRuntime(405): Shutting down VM
  02-05 22:58:17.660: WARN/dalvikvm(405): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405): FATAL EXCEPTION: main
  02-05 22:58:17.670: ERROR/AndroidRuntime(405): java.lang.NullPointerException
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at com.bfarago.nevnap.MainActivity$2.onClick(MainActivity.java:129)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at android.view.View.performClick(View.java:2408)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at android.view.View$PerformClick.run(View.java:8816)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at android.os.Handler.handleCallback(Handler.java:587)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at android.os.Handler.dispatchMessage(Handler.java:92)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at android.os.Looper.loop(Looper.java:123)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at android.app.ActivityThread.main(ActivityThread.java:4627)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at java.lang.reflect.Method.invokeNative(Native Method)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at java.lang.reflect.Method.invoke(Method.java:521)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
  02-05 22:58:17.670: ERROR/AndroidRuntime(405):     at dalvik.system.NativeStart.main(Native Method)
  02-05 22:58:17.680: WARN/ActivityManager(58):   Force finishing activity com.bfarago.nevnap/.MainActivity
  02-05 22:58:18.200: WARN/ActivityManager(58): Activity pause timeout for HistoryRecord{43e9a940 com.bfarago.nevnap/.MainActivity}
  02-05 22:58:19.790: INFO/Process(405): Sending signal. PID: 405 SIG: 9
  02-05 22:58:19.820: INFO/ActivityManager(58): Process com.bfarago.nevnap (pid 405) has died.
  02-05 22:58:19.820: WARN/ActivityManager(58): Scheduling restart of crashed service com.bfarago.nevnap/.UpdateService in 5000ms
  02-05 22:58:19.820: INFO/WindowManager(58): WIN DEATH: Window{43fce1d8 com.bfarago.nevnap/com.bfarago.nevnap.MainActivity paused=false}
  02-05 22:58:19.920: WARN/InputManagerService(58): Got RemoteException sending setActive(false) notification to pid 405 uid 10048
  02-05 22:58:24.291: DEBUG/dalvikvm(216): GC_EXPLICIT freed 93 objects / 3736 bytes in 153ms
  02-05 22:58:24.901: INFO/ActivityManager(58): Start proc com.bfarago.nevnap for service com.bfarago.nevnap/.UpdateService: pid=425 uid=10048 gids={1015}
  02-05 22:58:28.966: WARN/ActivityManager(58): Activity destroy timeout for HistoryRecord{43e9a940 com.bfarago.nevnap/.MainActivity}
  02-05 22:58:29.350: DEBUG/dalvikvm(263): GC_EXPLICIT freed 44 objects / 2032 bytes in 164ms
  </code></pre>