Android gallery cannot combine custom title
<p>this is my code and I am trying to open gallery.. I got error as stated above</p>

<pre><code>/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.AgricultureTrading;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.util.Base64;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.ImageView;
import java.io.ByteArrayOutputStream;

/**
 *
 * @author Adrian
 */
public class ChangeUserImageActivity extends Activity {

        private static final int SELECT_PICTURE = 1;

    private static final int CAMERA_PIC_REQUEST = 1337;  
    private  Bitmap thumbnail = null;
          String img ="";

    /** Called when the activity is first created. */
    @Override
 public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
       // this.requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.changeuserimage);


    }

    public void camera_click(View view)
    {
                Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);  
        startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);         
    }
    public void gallery_click(View v)
    {

        // select a file
                Intent intent = new Intent();
                intent.setType("image/*");
                intent.setAction(Intent.ACTION_GET_CONTENT);
                startActivityForResult(Intent.createChooser(intent,
                        "Select Picture"), SELECT_PICTURE);

    }
        private byte [] imagetoArray()
    {

        ByteArrayOutputStream stream = new ByteArrayOutputStream();
      thumbnail.compress(Bitmap.CompressFormat.PNG, 100, stream);
        return stream.toByteArray();

    }

    public void backHome_click(View view)
    {        
        Intent myIntent = new Intent(view.getContext(), Tabs.class);
        startActivityForResult(myIntent, 0);  
    }
    private String decodeUTF8(byte[] bytes) {
        return Base64.encodeToString(bytes, Base64.NO_WRAP);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
      Log.i("", String.valueOf(requestCode));
        if (resultCode == -1) {  
             thumbnail = (Bitmap) data.getExtras().get("data");  
            ImageView image = (ImageView) findViewById(R.id.newuserimg);
            image.setImageBitmap(thumbnail);



        }

}
}
</code></pre>

<p>manifeast</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.AgricultureTrading"
      android:versionCode="1"
      android:versionName="1.0"&gt;
    &lt;application android:label="@string/app_name" android:icon="@drawable/icon"&gt;
        &lt;activity android:name="MainActivity"
                  android:label="@string/app_name"
                        android:theme="@android:style/Theme.NoTitleBar"&gt;
            &lt;intent-filter&gt;
                &lt;action android:name="android.intent.action.MAIN" /&gt;
                &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
            &lt;/intent-filter&gt;            
        &lt;/activity&gt;        
                        &lt;activity android:name=".Tabs"  android:label="@string/app_name"
                android:theme="@android:style/Theme.NoTitleBar"&gt;&lt;/activity&gt;

                &lt;activity android:name=".PestManagementHomeActivity"  android:label="@string/app_name"
                android:theme="@android:style/Theme.NoTitleBar"&gt;&lt;/activity&gt;
        &lt;activity android:name=".BuySellHomeActivity" 
        android:label="@string/app_name"
                android:theme="@android:style/Theme.NoTitleBar"&gt;&lt;/activity&gt;
                &lt;activity android:name=".EnvironmentAdviceActivity" &gt;&lt;/activity&gt;
        &lt;activity android:name=".ProfileActivity"&gt;&lt;/activity&gt;
        &lt;activity android:name=".AddPestActivity"&gt;&lt;/activity&gt;
        &lt;activity android:name=".AddEnvironmentActivity"&gt;&lt;/activity&gt;
        &lt;activity android:name=".SelectAdviceActivity"&gt;&lt;/activity&gt;
        &lt;activity android:name=".PestAdviceActivity"&gt;&lt;/activity&gt;
        &lt;activity android:name=".SellPriceActivity"&gt;&lt;/activity&gt;
        &lt;activity android:name=".SellActivity"&gt;&lt;/activity&gt;
        &lt;activity android:name=".AddEventActivity"&gt;&lt;/activity&gt;
        &lt;activity android:name=".ChangeUserImageActivity" android:theme="@android:style/Theme.Dialog"&gt;&lt;/activity&gt;
    &lt;/application&gt;
    &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
    &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt;
 &lt;uses-permission android:name="android.permission.CAMERA" /&gt;
 &lt;uses-feature android:name="android.hardware.camera" /&gt;
 &lt;uses-feature android:name="android.hardware.camera.autofocus" /&gt;

&lt;/manifest&gt;
</code></pre>

<p>Error </p>

<pre><code>16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime  FATAL EXCEPTION: main
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime  java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.gallery/com.android.camera.ImageGallery}: android.util.AndroidRuntimeException: You cannot combine custom titles with other title features
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1815)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1831)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.app.ActivityThread.access$500(ActivityThread.java:122)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1024)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.os.Handler.dispatchMessage(Handler.java:99)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.os.Looper.loop(Looper.java:132)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.app.ActivityThread.main(ActivityThread.java:4123)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at java.lang.reflect.Method.invokeNative(Native Method)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at java.lang.reflect.Method.invoke(Method.java:491)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at dalvik.system.NativeStart.main(Native Method)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime  Caused by: android.util.AndroidRuntimeException: You cannot combine custom titles with other title features
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:204)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at com.android.internal.policy.impl.PhoneWindow.generateLayout(PhoneWindow.java:2338)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at com.android.internal.policy.impl.PhoneWindow.installDecor(PhoneWindow.java:2545)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:219)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.app.Activity.setContentView(Activity.java:1786)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at com.android.camera.ImageGallery.onCreate(ImageGallery.java:113)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.app.Activity.performCreate(Activity.java:4397)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1048)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1779)
16:17:28.781    1604    com.android.gallery ERROR   AndroidRuntime      ... 11 more
</code></pre>
