Android 指令窗口

代码来自于 $ANDROID_SOURCE/packages/apps/Settings 

 

AndroidManifest.xml

 <activity android:name="TestingSettings" android:label="@string/testing">
 <intent-filter>
 <action android:name="android.intent.action.MAIN"/>
 <category android:name="android.intent.category.DEFAULT"/>
 </intent-filter>
 </activity>
 <receiver android:name="TestingSettingsBroadcastReceiver">
 <intent-filter>
 <action android:name="android.provider.Telephony.SECRET_CODE"/>
 <data android:scheme="android_secret_code" android:host="4636"/>
 </intent-filter>
 </receiver>

TestingSettingsBroadcastReceiver.java

 package com.android.settings;

 import android.provider.Telephony;
 import static android.provider.Telephony.Intents.SECRET_CODE_ACTION;

 import android.content.Context;
 import android.content.Intent;
 import android.content.BroadcastReceiver;
 import android.util.Config;
 import android.util.Log;
 import android.view.KeyEvent;


 public class TestingSettingsBroadcastReceiver extends BroadcastReceiver {

     public TestingSettingsBroadcastReceiver() {
     }

     @Override
     public void onReceive(Context context, Intent intent) {
         if (intent.getAction().equals(SECRET_CODE_ACTION)) {
             Intent i = new Intent(Intent.ACTION_MAIN);
             i.setClass(context, TestingSettings.class);
             i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             context.startActivity(i);
         }
     }
 }

 TestSettings.java

 /*
  * Copyright (C) 2008 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.settings;

 import android.os.Bundle;
 import android.preference.PreferenceActivity;

 public class TestingSettings extends PreferenceActivity {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         addPreferencesFromResource(R.xml.testing_settings);
     }

 }

拨号盘输入 *#*#4636#*#* 就会启动 TestSettings Activity