Android6.0以上实现断电关机

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寻寻觅觅，终于让我找到了一种在安卓6.0以上可以用的关机方法，当然了，前提是手机必须root。因为我要实现的是断电关机，所以首先得检测电源事件。

一、监测电源事件：

1.创建Broad类

package com.slq.shutdownafterdisconnect;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.drm.DrmStore;/** * Created by 15265 on 2017/11/17. */public class Broad {    private BatteryStateListener mBatteryStateListener;    private Context mContext;    private BroadCast receiver;    public Broad(Context context)    {        mContext = context;        receiver = new BroadCast();    }    public void register(BatteryStateListener listener) {        mBatteryStateListener = listener;        if (receiver != null) {            IntentFilter filter = new IntentFilter();            filter.addAction(Intent.ACTION_BATTERY_CHANGED);            filter.addAction(Intent.ACTION_BATTERY_LOW);            filter.addAction(Intent.ACTION_BATTERY_OKAY);            filter.addAction(Intent.ACTION_POWER_CONNECTED);            filter.addAction(Intent.ACTION_POWER_DISCONNECTED);            mContext.registerReceiver(receiver, filter);        }    }    public void unregister() {        if (receiver != null) {            mContext.unregisterReceiver(receiver);        }    }    private class BroadCast extends BroadcastReceiver    {        String action=null;        @Override        public void onReceive(Context context, Intent intent) {            if (intent!=null)            {                action=intent.getAction();                switch (action)                {                    //接通电源                    case Intent.ACTION_POWER_CONNECTED:                        if (mBatteryStateListener!=null)                        {                            mBatteryStateListener.onStatePowerConnected();                        }                        break;                    //拔出电源                    case Intent.ACTION_POWER_DISCONNECTED:                        if (mBatteryStateListener!=null)                        {                            mBatteryStateListener.onStatePowerDisconnected();                        }                        //MyShutDown();                        break;                        //电量低                    case Intent.ACTION_BATTERY_LOW:                        break;                        //电量发生变化                    case Intent.ACTION_BATTERY_CHANGED:                        break;                        //电量充满                    case Intent.ACTION_BATTERY_OKAY:                        break;                }            }        }    }    //监听接口    public interface BatteryStateListener {        public void onStatePowerConnected();        public void onStatePowerDisconnected();    }}

二、在MainActivity编写关机方法：

private void MyShutDown(){    try    {        Process process=Runtime.getRuntime().exec("reboot -p");        String data=null;        BufferedReader errorLine=new BufferedReader(new InputStreamReader(process.getErrorStream()));        BufferedReader inputLine=new BufferedReader(new InputStreamReader(process.getInputStream()));        String error=null;        while ((error=errorLine.readLine())!=null&&!error.equals("null"))        {            data+=error+"\n";        }        String input=null;        while((input= inputLine.readLine())!=null&&!input.equals("null"))        {            data+=input+"\n";        }    }    catch (Exception e)    {    }}

三、在onCreate中调用

Broad listener;@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);        listener=new Broad(this);    listener.register(new Broad.BatteryStateListener(){        @Override        public void onStatePowerConnected() {            Toast.makeText(MainActivity.this,"接通电源",Toast.LENGTH_LONG).show();        }        @Override        public void onStatePowerDisconnected() {            Toast.makeText(MainActivity.this,"断开电源",Toast.LENGTH_LONG).show();            MyShutDown();        }    });    }

四、在onDestroy中注销

@Overrideprotected void onDestroy() {    if (listener!=null)    {        listener.unregister();    }    super.onDestroy();}

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