Android6.0以上实现断电关机

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;

@Override
protected 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

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