Android service永不杀死

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    最近有个需求需要建一个service永远在后台运行来接收推送消息和一些定时器工作,首先想到的就是双进程守护原则,然后再利用aidl相互唤醒连个service1和service2,但是这样有个问题如果app一直运行在后台的话  这两个service 是不会关闭的,但是一旦利用home键关闭这个app那么伴随着这个连个service都会被杀死,这是因为app未获取自启动权限,以往我们通过检测Android的开机广播就能获取启动  但是对小米和华为系统来说他们已经屏蔽了这种方式,所以我选择了一种让用户自己开启自启动全县的方式,跟他们弹出受理界面,这样service就能一直在后台运行了


service1:

import android.app.Notification;

import android.app.PendingIntent;

import android.app.Service;

import android.content.Intent;

import android.os.Handler;

import android.os.IBinder;

import android.os.Message;

import android.os.RemoteException;

import android.util.Log;

import android.widget.Toast;

import com.plant.org.testserver.MainActivity;

import com.plant.org.testserver.R;

import com.plant.org.testserver.utils.Utils;

public class Service1 extends Service {

private Handler handler = new Handler() {

public void handleMessage(android.os.Message msg) {

switch (msg.what) {

case 1:

startService2();

break;

default:

break;

}

};

};

/**

* 使用aidl 启动Service2

*/

private StrongService startS2 = new StrongService.Stub() {

@Override

public void stopService() throws RemoteException {

Intent i = new Intent(getBaseContext(), Service2.class);

getBaseContext().stopService(i);

}

@Override

public void startService() throws RemoteException {

Intent i = new Intent(getBaseContext(), Service2.class);

getBaseContext().startService(i);

}

};

/**

* 在内存紧张的时候,系统回收内存时,会回调OnTrimMemory, 重写onTrimMemory当系统清理内存时从新启动Service2

*/

@Override

public void onTrimMemory(int level) {

/*

* 启动service2

*/

startService2();

}

@Override

public void onCreate() {

Toast.makeText(Service1.this, "Service1 正在启动...", Toast.LENGTH_SHORT)

.show();

startService2();

/*

* 此线程用监听Service2的状态

*/

new Thread() {

public void run() {

while (true) {

boolean isRun = Utils.isServiceWork(Service1.this,

"com.plant.org.testserver.service.Service2");

if (!isRun) {

Message msg = Message.obtain();

msg.what = 1;

handler.sendMessage(msg);

}

try {

Thread.sleep(1);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

};

}.start();

}

/**

* 判断Service2是否还在运行,如果不是则启动Service2

*/

private void startService2() {

boolean isRun = Utils.isServiceWork(Service1.this,

"com.plant.org.testserver.service.Service2");

if (isRun == false) {

try {

startS2.startService();

} catch (RemoteException e) {

e.printStackTrace();

}

}

}

@Override

public int onStartCommand(Intent intent, int flags, int startId) {

Notification notification = new Notification(R.mipmap.ic_launcher,getString(R.string.app_name), System.currentTimeMillis());

PendingIntent pendingintent = PendingIntent.getActivity(this, 0,new Intent(this, MainActivity.class), 0);

// notification.setLatestEventInfo(this, "uploadservice", "请保持程序在后台运行", pendingintent);

startForeground(0x111, notification);

return START_STICKY_COMPATIBILITY;

}

@Override

public void onDestroy() {

super.onDestroy();

}

@Override

public IBinder onBind(Intent intent) {

return (IBinder) startS2;

}

@Override

public void onTaskRemoved(Intent rootIntent) {

super.onTaskRemoved(rootIntent);

Log.d("lib093","Service1清除");

}

}

----------------------------------------------------------------------------------------------------------------------

package  com.plant.org.testserver.service;

import android.annotation.SuppressLint;

import android.app.Service;

import android.content.Intent;

import android.os.Handler;

import android.os.IBinder;

import android.os.Message;

import android.os.RemoteException;

import android.widget.Toast;

import com.plant.org.testserver.utils.Utils;

/**

* 934042435@qq.com

*

* @author lib093

*

*/

public class Service2 extends Service {

private Handler handler = new Handler() {

public void handleMessage(android.os.Message msg) {

switch (msg.what) {

case 1:

startService1();

break;

default:

break;

}

};

};

/**

* 使用aidl 启动Service1

*/

private StrongService startS1 = new StrongService.Stub() {

@Override

public void stopService() throws RemoteException {

Intent i = new Intent(getBaseContext(), Service1.class);

getBaseContext().stopService(i);

}

@Override

public void startService() throws RemoteException {

Intent i = new Intent(getBaseContext(), Service1.class);

getBaseContext().startService(i);

}

};

/**

* 在内存紧张的时候,系统回收内存时,会回调OnTrimMemory, 重写onTrimMemory当系统清理内存时从新启动Service1

*/

@Override

public void onTrimMemory(int level) {

startService1();

}

@SuppressLint("NewApi")

public void onCreate() {

Toast.makeText(Service2.this, "Service2 启动中...", Toast.LENGTH_SHORT)

.show();

startService1();

/*

* 此线程用监听Service2的状态

*/

new Thread() {

public void run() {

while (true) {

boolean isRun = Utils.isServiceWork(Service2.this,

"com.plant.org.testserver.service.Service1");

if (!isRun) {

Message msg = Message.obtain();

msg.what = 1;

handler.sendMessage(msg);

}

try {

Thread.sleep(1);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

};

}.start();

}

/**

* 判断Service1是否还在运行,如果不是则启动Service1

*/

private void startService1() {

boolean isRun = Utils.isServiceWork(Service2.this,

"com.plant.org.testserver.service.Service1");

if (isRun == false) {

try {

startS1.startService();

} catch (RemoteException e) {

e.printStackTrace();

}

}

}

@Override

public int onStartCommand(Intent intent, int flags, int startId) {

return START_STICKY;

}

@Override

public IBinder onBind(Intent intent) {

return (IBinder) startS1;

}

}

----------------------------------------------------------------------------------------------------------------------------

interface StrongService{

voidstartService();

voidstopService();

}

-------------------------------------------------------------------------------------------------------------------

/*打开自启动管理页*/

public  voidopenStart(Context context){

if(Build.VERSION.SDK_INT<23){

return;

}

String system =getSystem();

Intent intent =newIntent();

if(system.equals(SYS_EMUI)){//华为

ComponentName componentName =newComponentName("com.huawei.systemmanager","com.huawei.systemmanager.startupmgr.ui.StartupNormalAppListActivity");

intent.setComponent(componentName);

}else if(system.equals(SYS_MIUI)){//小米

ComponentName componentName =newComponentName("com.miui.securitycenter","com.miui.permcenter.autostart.AutoStartManagementActivity");

intent.setComponent(componentName);

}

try{

context.startActivity(intent);

}catch(Exception e){//抛出异常就直接打开设置页面

intent=newIntent(Settings.ACTION_SETTINGS);

context.startActivity(intent);

}

}

@Override

public voidonRequestPermissionsResult(intrequestCode, String permissions[],int[] grantResults) {

switch(requestCode) {

case11001:

if((grantResults.length>0) && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) {

//TODO

}

break;

default:

break;

}

}

@Override

protected voidonDestroy() {

super.onDestroy();

Log.d("lib093","MainActivity销毁");

Intent i1 =newIntent(MainActivity.this, Service1.class);

startService(i1);

}

public voidonClick(View v) {

switch(v.getId()) {

caseR.id.button1:

Intent i1 =newIntent(MainActivity.this, Service1.class);

startService(i1);

Intent i2 =newIntent(MainActivity.this, Service2.class);

startService(i2);

break;

}

}

public staticString getSystem(){

String SYS="";

try{

Properties prop=newProperties();

prop.load(newFileInputStream(newFile(Environment.getRootDirectory(),"build.prop")));

if(prop.getProperty(KEY_MIUI_VERSION_CODE,null) !=null

|| prop.getProperty(KEY_MIUI_VERSION_NAME,null) !=null

|| prop.getProperty(KEY_MIUI_INTERNAL_STORAGE,null) !=null){

SYS =SYS_MIUI;//小米

}else if(prop.getProperty(KEY_EMUI_API_LEVEL,null) !=null

||prop.getProperty(KEY_EMUI_VERSION,null) !=null

||prop.getProperty(KEY_EMUI_CONFIG_HW_SYS_VERSION,null) !=null){

SYS =SYS_EMUI;//华为

}else if(getMeizuFlymeOSFlag().toLowerCase().contains("flyme")){

SYS =SYS_FLYME;//魅族

};

}catch(IOException e){

e.printStackTrace();

returnSYS;

}

returnSYS;

}

public staticString getMeizuFlymeOSFlag() {

returngetSystemProperty("ro.build.display.id","");

}

private staticString getSystemProperty(String key, String defaultValue) {

try{

Class clz = Class.forName("android.os.SystemProperties");

Method get = clz.getMethod("get", String.class, String.class);

return(String)get.invoke(clz, key, defaultValue);

}catch(Exception e) {

}

returndefaultValue;

}

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