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POApp Crashes On Startup Due To java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView
 

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  1. POApp Crashes On Startup Due To java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView
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    <p>My app crashes every time I start it in the emulator. Here is the logcat:</p> <pre><code>01-02 17:20:58.859: ERROR/AndroidRuntime(249): Uncaught handler: thread main exiting due to uncaught exception 01-02 17:20:58.889: ERROR/AndroidRuntime(249): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.shoppinglist/com.shoppinglist.ShoppingList}: java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at android.app.ActivityThread.access$2100(ActivityThread.java:116) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at android.os.Handler.dispatchMessage(Handler.java:99) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at android.os.Looper.loop(Looper.java:123) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at android.app.ActivityThread.main(ActivityThread.java:4203) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at java.lang.reflect.Method.invokeNative(Native Method) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at java.lang.reflect.Method.invoke(Method.java:521) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 01-02 17:20:58.889: ERROR/AndroidRuntime(249): at dalvik.system.NativeStart.main(Native Method)** </code></pre> <p>Here is my .java file:</p> <pre><code>package com.shoppinglist; import android.app.ListActivity; import android.app.Dialog; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class ShoppingList extends ListActivity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button button1main = (Button) findViewById(R.id.Button01main); button1main.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { final Dialog dialog = new Dialog(ShoppingList.this); dialog.setContentView(R.layout.maindialog); dialog.setCancelable(true); Button button = (Button) dialog.findViewById(R.id.cancel); button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { dialog.dismiss(); } }); dialog.show(); } }); } } </code></pre> <p>My layout.xml:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;ListView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#FFCC00" android:padding="10dp" android:id="@+id/listview"&gt; &lt;Button android:id="@+id/Button01main" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Add item..."/&gt; &lt;/ListView&gt; </code></pre> <p>My dialog xml:</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:id="@+id/layout_root" android:orientation="vertical" android:background="#FFFFFF" android:minHeight="100dp" android:minWidth="300dp"&gt; &lt;EditText android:id="@+id/edittext" android:layout_width="fill_parent" android:layout_height="wrap_content" android:hint="Type the name of an item here..."&gt; &lt;/EditText&gt; &lt;LinearLayout android:id="@+id/button_layout" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="horizontal" android:layout_gravity="right"&gt; &lt;Button android:id="@+id/ok" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="OK" android:layout_gravity="bottom"&gt; &lt;/Button&gt; &lt;Button android:id="@+id/cancel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Cancel" android:layout_gravity="bottom"&gt; &lt;/Button&gt; &lt;/LinearLayout&gt; &lt;/LinearLayout&gt; </code></pre> <p><strong>Any help will be appreciated. I need code samples for fixes, I am not very experienced.</strong></p>
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