关于进程守护，拉起问题

来源：互联网发布：nba数据查询编辑：程序博客网时间：2024/04/29 23:32

之前看了一篇文章说的是进程的守护问题，忘记实在哪里看了，现在有时间吧代码发出来，做下笔记
这一块的问题常见于推送相关的，因为有的时候系统会把，开启的服务给kill 了，但是服务不会自动启动
1.aidl 文件

// IProcessService.aidlpackage com.stevefat.myapplication;// Declare any non-default types here with import statementsinterface IProcessService {    /**     * Demonstrates some basic types that you can use as parameters     * and return values in AIDL.     */   String getServiceName();}

2.第一个服务

package com.stevefat.myapplication.services;import android.app.Service;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.content.ServiceConnection;import android.os.IBinder;import android.os.RemoteException;import android.support.annotation.Nullable;import android.util.Log;import com.stevefat.myapplication.IProcessService;/** * Author: ngh * date: 2016/10/9 */public class DaemonService extends Service {    String TAG = "DaemonService";    private DaemonBinder mDaemonBinder;    private DaemonServiceConnection mDaemonServiceConn;    public DaemonService() {    }    @Override    public void onCreate() {        super.onCreate();        mDaemonBinder = new DaemonBinder();        if (mDaemonServiceConn == null) {            mDaemonServiceConn = new DaemonServiceConnection();        }        Log.e(TAG, TAG + " onCreate");    }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        super.onStartCommand(intent, flags, startId);        Log.e(TAG, TAG + " onStartCommand");        bindService(new Intent(this, RemoteService.class), mDaemonServiceConn, Context.BIND_IMPORTANT);        return START_STICKY;    }    @Nullable    @Override    public IBinder onBind(Intent intent) {        return mDaemonBinder;    }    /**     * 通过AIDL实现进程间通信     */    class DaemonBinder extends IProcessService.Stub {        @Override        public String getServiceName() throws RemoteException {            return TAG;        }    }    /**     * 连接远程服务     */    class DaemonServiceConnection implements ServiceConnection {        @Override        public void onServiceConnected(ComponentName name, IBinder service) {            try {                // 与远程服务通信                IProcessService process = IProcessService.Stub.asInterface(service);                Log.e(TAG, "连接" + process.getServiceName() + "服务成功");            } catch (RemoteException e) {                e.printStackTrace();            }        }        @Override        public void onServiceDisconnected(ComponentName name) {            // RemoteException连接过程出现的异常，才会回调,unbind不会回调            startService(new Intent(DaemonService.this, RemoteService.class));            bindService(new Intent(DaemonService.this, RemoteService.class), mDaemonServiceConn, Context.BIND_IMPORTANT);        }    }}

3.第二个服务

package com.stevefat.myapplication.services;import android.app.Service;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.content.ServiceConnection;import android.os.IBinder;import android.os.RemoteException;import android.support.annotation.Nullable;import android.util.Log;import com.stevefat.myapplication.IProcessService;/** * Author: ngh * date: 2016/10/9 */public class RemoteService extends Service {    String TAG = "RemoteService";    private ServiceBinder mServiceBinder;    private RemoteServiceConnection mRemoteServiceConn;    @Override    public void onCreate() {        super.onCreate();        mServiceBinder = new ServiceBinder();        if (mRemoteServiceConn == null) {            mRemoteServiceConn = new RemoteServiceConnection();        }        Log.e(TAG, TAG + " onCreate");    }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        super.onStartCommand(intent, flags, startId);        Log.e(TAG, TAG + " onStartCommand");        bindService(new Intent(this, DaemonService.class), mRemoteServiceConn, Context.BIND_IMPORTANT);        return START_STICKY;    }    @Nullable    @Override    public IBinder onBind(Intent intent) {        return mServiceBinder;}    /**     * 通过AIDL实现进程间通信     */    class ServiceBinder extends IProcessService.Stub {        @Override        public String getServiceName() throws RemoteException {            return "RemoteService";        }    }    /**     * 连接远程服务     */    class RemoteServiceConnection implements ServiceConnection {        @Override        public void onServiceConnected(ComponentName name, IBinder service) {            try {                IProcessService process = IProcessService.Stub.asInterface(service);                Log.e(TAG, "连接" + process.getServiceName() + "服务成功");            } catch (RemoteException e) {                e.printStackTrace();            }        }        @Override        public void onServiceDisconnected(ComponentName name) {            // RemoteException连接过程出现的异常，才会回调,unbind不会回调            startService(new Intent(RemoteService.this, DaemonService.class));            bindService(new Intent(RemoteService.this, DaemonService.class), mRemoteServiceConn, Context.BIND_IMPORTANT);        }    }}

4.在配置清单文件中添加两个服务

<service android:name=".services.DaemonService"/><service android:name=".services.RemoteService"/>

5.在activity 中启动这两个服务

 Intent intent = new Intent(MainActivity.this,DaemonService.class); startService(intent); Intent intent1 = new Intent(MainActivity.this,RemoteService.class); startService(intent1);

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