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POTrying to set LayoutWidth Programmatically
 

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  1. POTrying to set LayoutWidth Programmatically
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    <p>I am trying to set layout width pro-grammatically, Here is my XML layout file.</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/startTime_EndtimeLayout" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" &gt; &lt;TextView android:id="@+id/HeadingTextView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:text="TextView" /&gt; &lt;ScrollView android:id="@+id/scrollView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_below="@+id/HeadingTextView" android:layout_above="@+id/dialogButtonOK" android:scrollbars="vertical" &gt; &lt;RelativeLayout android:id="@+id/startTime_EndtimeLayoutWithScroll" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" &gt; &lt;TableLayout android:id="@+id/startTime_EndtimeTableLayout" android:layout_width="wrap_content" android:layout_height="wrap_content" &gt; &lt;/TableLayout&gt; &lt;/RelativeLayout&gt; &lt;/ScrollView&gt; &lt;Button android:id="@+id/dialogButtonOK" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" android:text=" close " /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>I want to set the relative layout width, the child view of Scroll View. The ways I have tried,</p> <p>1.</p> <pre><code>RelativeLayout rl = (RelativeLayout)findViewById(R.id.startTime_EndtimeLayoutWithScroll); rl.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT)); </code></pre> <p>2.</p> <pre><code>RelativeLayout rl = (RelativeLayout)scrollView.findViewById(R.id.startTime_EndtimeLayoutWithScroll); rl.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT)); </code></pre> <p>In both the cases,I am getting this error,</p> <pre><code>10-11 17:36:31.526: E/dalvikvm(1555): [DVM] mmap return base = 4586a000 10-11 17:36:32.824: E/dalvikvm(1555): [DVM] mmap return base = 459e1000 10-11 17:36:32.966: E/AndroidRuntime(1555): FATAL EXCEPTION: main 10-11 17:36:32.966: E/AndroidRuntime(1555): java.lang.ClassCastException: android.widget.RelativeLayout$LayoutParams 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.widget.FrameLayout.onLayout(FrameLayout.java:324) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.widget.ScrollView.onLayout(ScrollView.java:1331) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.view.View.layout(View.java:7225) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.widget.RelativeLayout.onLayout(RelativeLayout.java:943) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.view.View.layout(View.java:7225) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.widget.FrameLayout.onLayout(FrameLayout.java:369) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.view.View.layout(View.java:7225) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.widget.FrameLayout.onLayout(FrameLayout.java:369) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.view.View.layout(View.java:7225) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.view.ViewRoot.performTraversals(ViewRoot.java:1181) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.view.ViewRoot.handleMessage(ViewRoot.java:1913) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.os.Handler.dispatchMessage(Handler.java:130) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.os.Looper.loop(SourceFile:351) 10-11 17:36:32.966: E/AndroidRuntime(1555): at android.app.ActivityThread.main(ActivityThread.java:3820) 10-11 17:36:32.966: E/AndroidRuntime(1555): at java.lang.reflect.Method.invokeNative(Native Method) 10-11 17:36:32.966: E/AndroidRuntime(1555): at java.lang.reflect.Method.invoke(Method.java:538) 10-11 17:36:32.966: E/AndroidRuntime(1555): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:969) 10-11 17:36:32.966: E/AndroidRuntime(1555): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:727) 10-11 17:36:32.966: E/AndroidRuntime(1555): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>Any ideas to resolve the problem. Thanx</p>
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    1. COcan you post full code ?
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    2. COI have mentioned that from my XML file(above given), I want to give the Height and Width according to my choice.I dont think more than this any information is necessary.
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