android:sharedUserId="com.tony.test"

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
   package="com.tony.reskin" 
   android:versionCode="1" 
   android:versionName="1.0" <span style="color:#FF0000;">android:sharedUserId="com.tony.skin"</span>> 
  <uses-sdk android:minSdkVersion="7" /> 
 
  <application android:icon="@drawable/icon" android:label="@string/app_name"> 
    <activity android:name="com.tony.reskin.Re_SkinActivity" 
         android:label="@string/app_name"> 
      <intent-filter> 
        <action android:name="android.intent.action.MAIN" /> 
        <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
    </activity> 
 
  </application> 
</manifest> 

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
  android:orientation="vertical" 
  android:layout_width="fill_parent" 
  android:layout_height="fill_parent" 
  android:id="@+id/layout"  > 
<TextView  
  android:layout_width="fill_parent" 
  android:layout_height="wrap_content" 
  android:text="@string/hello" 
  /> 
<Button android:text="Set" android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button> 
   
</LinearLayout> 

package com.tony.reskin; 
 
 
import android.app.Activity; 
import android.content.Context; 
import android.content.pm.PackageManager.NameNotFoundException; 
import android.os.Bundle; 
import android.os.Handler; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.LinearLayout; 
 
public class Re_SkinActivity extends Activity { 
  private LinearLayout layout; 
  private Button btnSet; 
  <span style="color:#FF0000;">private Context friendContext;</span> 
  /** Called when the activity is first created. */ 
  @Override 
  public void onCreate(Bundle savedInstanceState) { 
     
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    btnSet = (Button)findViewById(R.id.button1); 
    layout = (LinearLayout)findViewById(R.id.layout); 
    layout.setBackgroundResource(R.drawable.bg); 
    
    try { 
    <span style="color:#FF0000;">friendContext = createPackageContext("com.tony.reskin1", Context.CONTEXT_IGNORE_SECURITY);</span> 
    } catch (NameNotFoundException e) { 
      e.printStackTrace(); 
    } 
    btnSet.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
        new Handler().post(new Runnable() { 
          @Override 
          public void run() { 
            layout.setBackgroundDrawable(<span style="color:#FF0000;">friendContext.getResources().getDrawable(R.drawable.bg</span>)); 
          } 
        }); 
      } 
    }); 
  } 
} 

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
   package="com.tony.reskin1" 
   android:versionCode="1" 
   android:versionName="1.0" <span style="color:#FF0000;">android:sharedUserId="com.tony.skin"</span>> 
  <uses-sdk android:minSdkVersion="7" /> 
 
  <application android:icon="@drawable/icon" android:label="@string/app_name"> 
    <activity android:name=".Re_Skin1Activity" 
         android:label="@string/app_name"> 
      <intent-filter> 
        <action android:name="android.intent.action.MAIN" /> 
        <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
    </activity> 
 
  </application> 
</manifest>