Android系统关机与重启

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客户需求：编写一个测试的app，能过控制系统的关机和重启

解决思路：通过简单的两个按钮，通过发送广播来实现关机和重启（这里是进程间的通信啦就用广播来做了），其实这个两个广播在我们的系统是已经注册好了的，我们做的就是发送符合系统注册的广播即可。这里要注意的就是要让我们测试的app具有系统权限，相当于是变成系统认可的系统app啦。

应用程序界面：

1.eclipse里面新建一个 android 工程 RebootApp

2. 编写 Android.mk, 下面是此文件内的相应内容:

## 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.#LOCAL_PATH:= $(call my-dir)include $(CLEAR_VARS)LOCAL_MODULE_TAGS := optionalLOCAL_SRC_FILES := $(call all-java-files-under, src)LOCAL_PACKAGE_NAME := rebootLOCAL_CERTIFICATE := platforminclude $(BUILD_PACKAGE)# Use the folloing include to make our test apk.include $(call all-makefiles-under,$(LOCAL_PATH))

编写完后将此文件添加到工程RebootApp里，位置如图：

在系统目录下位置如图：

3. 工程 RebootApp里补充编写AndroidMenifest.xml

补充内容: android:sharedUserId="android.uid.system"

内容位置:

4. 工程 RebootApp里编写逻辑代码 MainActivity.java (布局文件就省略，就两个按钮的布局)

package com.zhc.rbootapp;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.util.Log;import android.view.Menu;import android.view.View;import android.view.Window;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);this.requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_main);}//打开public void sendOpen(View v){//Log.v(TAG, "broadcast->shutdown");        Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN);        intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false);        //其中false换成true,会弹出是否关机的确认窗口        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        startActivity(intent);}//关闭public void sendClose(View v){Intent intent2 = new Intent(Intent.ACTION_REBOOT);            intent2.putExtra("nowait", 1);            intent2.putExtra("interval", 1);            intent2.putExtra("window", 0);            sendBroadcast(intent2);}}

注意：这两个在eclipse里面会报错（所以不要用eclipse来进行编译，用xshell5来编译）:

Intent.ACTION_REQUEST_SHUTDOWN

Intent.EXTRA_KEY_CONFIRM