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POSet child layout width programmatically In ANDROID?
 

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  1. POSet child layout width programmatically In ANDROID?
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    <p>In my Code I have a XML file having multiple child layouts. Aand I just want to set one of these child layout's width programmatically according to device's screen width. till now I had tried Layout params, setparam, and other methods but it shows null pointer exception on getting layout id.</p> <p>my parent layout is a Relative Layout, and 1st Child Layout is a Linear Layout("for this layout I need to change width")</p> <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/parentlayout" android:layout_width="fill_parent" android:layout_height="fill_parent"&gt; &lt;LinearLayout android:id="@+id/childlayout" android:layout_width="250dip" android:layout_height="fill_parent" android:orientation="vertical" android:background="#153746"&gt; &lt;LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" android:background="@drawable/sub_title" android:gravity="center_vertical" &gt; &lt;TextView android:id="@+id/menu_header_label" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textStyle="bold" android:text="asd" android:textColor="#ffffff" android:layout_marginLeft="10dip" /&gt; &lt;ImageView android:id="@+id/menu_header" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" /&gt; &lt;/LinearLayout&gt; &lt;ListView android:id="@+id/menu_listview" android:layout_width="fill_parent" android:layout_height="wrap_content" android:divider="@android:color/darker_gray" android:dividerHeight="1dip" android:scrollingCache="false" /&gt; &lt;/LinearLayout&gt; &lt;FrameLayout android:id="@+id/overlay" android:layout_width="fill_parent" android:layout_height="fill_parent" &gt; &lt;/FrameLayout&gt; &lt;/LinearLayout&gt; </code></pre> <p>Java Code:-</p> <pre><code> public class SlideMenu extends LinearLayout { // keys for saving/restoring instance state public final static String KEY_MENUSHOWN = "menuWasShown"; private final static String KEY_STATUSBARHEIGHT = "statusBarHeight"; private final static String KEY_SUPERSTATE = "superState"; // Display display = ((WindowManager) getWindowToken()).getDefaultDisplay(); // int width = display.getWidth(); // deprecated // int height = display.getHeight(); // deprecated // float layWidth = (width*70)/100; // //// LinearLayout view= (LinearLayout)findViewById(R.id.childlayout); //// LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) view.getLayoutParams(); //// params.width = 130; //// view.setLayoutParams(params); // view.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, theSizeIWant)); public static class SlideMenuItem { public int id; public Drawable icon; public String label; } </code></pre> <p>here is my code snippet and i comment the part what i tried so far and get any fine result..``</p>
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    1. USDipak Keshariya
    1. USManish
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    1. COWhere is your code?
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      1. USAli Imran
    2. CODon't post your XML as a screenshot, put the actual code in the question.
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      1. USCerbrus
    3. COIt was answered here http://stackoverflow.com/questions/5715612/how-to-set-setlayoutparams-for-linear-layout-elements
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      1. USArun Paarthi
 

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