Можно ли изменить ширину и высоту макета в Android во время выполнения?

У меня есть два относительных макета. У обоих есть ширина родительского элемента заполнения и высота падения 100. Мое требование - когда я нажимаю на первый макет, он должен уменьшаться до высоты 50dip, а другой расширяться до высоты 150dip. При этом я получил исключение. Пожалуйста, помогите мне изменить ширину и высоту макета во время выполнения.

    final LinearLayout RLChange = new LinearLayout(this);        
    RLChange.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
                                             LayoutParams.FILL_PARENT)); 
    RLChange.setOrientation(LinearLayout.VERTICAL);

    final LinearLayout RLGreen = new LinearLayout(this);        
    RLGreen.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
                                             300));
    RLGreen.setBackgroundColor(Color.GREEN);
    RLGreen.setOrientation(LinearLayout.HORIZONTAL);

    Button btnClick = new Button(this);        
    btnClick.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
            LayoutParams.WRAP_CONTENT));
    btnClick.setBackgroundColor(Color.RED);

    RLGreen.addView(btnClick);


    final LinearLayout RLYellow = new LinearLayout(this);        
    RLYellow.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
                                             200));
    RLYellow.setBackgroundColor(Color.YELLOW);


    btnClick.setOnClickListener(new View.OnClickListener() {            
        public void onClick(View view) {  
                    Toast.makeText(getApplicationContext(), "click", Toast.LENGTH_SHORT).show();
                    RLGreen.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
                            LayoutParams.FILL_PARENT));  
        }
     });  

    RLChange.addView(RLGreen);
    RLChange.addView(RLYellow);
    setContentView(RLChange);




Log Cat


03-10 11:01:35.328: INFO/NotificationService(574): enqueueToast pkg=Changewidth.com callback=android.app.ITransientNotification$Stub$Proxy@43948648 duration=0
03-10 11:01:35.388: DEBUG/AndroidRuntime(1505): Shutting down VM
03-10 11:01:35.388: WARN/dalvikvm(1505): threadid=3: thread exiting with uncaught exception (group=0x4001aa28)
03-10 11:01:35.398: ERROR/AndroidRuntime(1505): Uncaught handler: thread main exiting due to uncaught exception
03-10 11:01:35.449: ERROR/AndroidRuntime(1505): java.lang.ClassCastException: android.view.ViewGroup$LayoutParams
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.widget.LinearLayout.measureVertical(LinearLayout.java:326)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.widget.LinearLayout.onMeasure(LinearLayout.java:278)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.view.View.measure(View.java:7703)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:2989)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.widget.FrameLayout.onMeasure(FrameLayout.java:245)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.view.View.measure(View.java:7703)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.widget.LinearLayout.measureVertical(LinearLayout.java:464)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.widget.LinearLayout.onMeasure(LinearLayout.java:278)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.view.View.measure(View.java:7703)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:2989)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.widget.FrameLayout.onMeasure(FrameLayout.java:245)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.view.View.measure(View.java:7703)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.view.ViewRoot.performTraversals(ViewRoot.java:747)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1613)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.os.Handler.dispatchMessage(Handler.java:99)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.os.Looper.loop(Looper.java:123)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at android.app.ActivityThread.main(ActivityThread.java:4203)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at java.lang.reflect.Method.invokeNative(Native Method)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at java.lang.reflect.Method.invoke(Method.java:521)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
03-10 11:01:35.449: ERROR/AndroidRuntime(1505):     at dalvik.system.NativeStart.main(Native Method)
03-10 11:01:35.479: INFO/Process(574): Sending signal. PID: 1505 SIG: 3
03-10 11:01:35.479: INFO/dalvikvm(1505): threadid=7: reacting to signal 3
03-10 11:01:35.619: INFO/dalvikvm(1505): Wrote stack trace to '/data/anr/traces.txt'
03-10 11:01:35.779: DEBUG/dalvikvm(623): GC freed 3557 objects / 196272 bytes in 448ms
18
задан Devon Smith 25 July 2011 в 12:48
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