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POAndroid layout previewer throws error when adding custom LinearLayout
 

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  1. POAndroid layout previewer throws error when adding custom LinearLayout
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    <p>I've defined a custom ViewGroup that extends the functionality of a LinearLayout:</p> <pre><code>public class TestLayout extends LinearLayout { public TestLayout(Context context, AttributeSet attrs) { super(context, attrs); LayoutInflater inflater = (LayoutInflater)context.getSystemService (Context.LAYOUT_INFLATER_SERVICE); inflater.inflate(R.layout.testlayout, this, true); } } </code></pre> <p>The layout it inflates (<strong>testlayout.xml</strong>) looks like this:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:gravity="center"&gt; &lt;Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button"/&gt; &lt;/LinearLayout&gt; </code></pre> <p>And finally i'm using this custom component in my <strong>main.xml</strong>:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" &gt; &lt;my.test.namespace.TestLayout android:id="@+id/testLayout1" android:layout_width="wrap_content" android:layout_height="wrap_content" &gt; &lt;/my.test.namespace.TestLayout&gt; &lt;/LinearLayout&gt; </code></pre> <p>When viewing my main.xml in the layout editor, eclipse throws an error: <em>my.test.namespace.TestLayout failed to instantiate.</em></p> <p>And the stacktrace:</p> <pre><code>android.content.res.Resources$NotFoundException: Could not resolve resource value: 0x7F030001. at com.android.layoutlib.bridge.android.BridgeResources.throwException(BridgeResources.java:648) at com.android.layoutlib.bridge.android.BridgeResources.getLayout(BridgeResources.java:270) at android.view.LayoutInflater.inflate(LayoutInflater.java:318) at my.test.namespace.TestLayout.&lt;init&gt;(TestLayout.java:18) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at com.android.ide.eclipse.adt.internal.editors.layout.ProjectCallback.instantiateClass(ProjectCallback.java:397) at com.android.ide.eclipse.adt.internal.editors.layout.ProjectCallback.loadView(ProjectCallback.java:165) at com.android.layoutlib.bridge.android.BridgeInflater.loadCustomView(BridgeInflater.java:205) at com.android.layoutlib.bridge.android.BridgeInflater.createViewFromTag(BridgeInflater.java:133) at android.view.LayoutInflater.rInflate(LayoutInflater.java:618) at android.view.LayoutInflater.inflate(LayoutInflater.java:407) </code></pre> <p><strong>0x7F030001</strong> points to the layout xml file in R.java. I tried cleaning my project, but that did nothing. Am I using the LayoutInflater wrong, or what is going on here?</p>
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    1. COsee show view > error log to see the error on xml file
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    2. CO@DroidShruti "my.test.namespace.TestLayout failed to instantiate." is what it says in the error log.
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    3. COYour layout works perfectly for me. Try to both clean your project (again) and restart eclipse, as well as refresh your folders (from eclipse)...
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