android基础教程之开机启动示例

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </service>

import java.util.List;
import android.annotation.SuppressLint;
import android.app.ActivityManager;
import android.app.Service;
import android.app.ActivityManager.RunningAppProcessInfo;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.util.Log;

public class DaemonService extends Service {

    private static final String TAG = "Alarmreceiver";
    Handler hd1 = new Handler();
    int delay = 5000;

    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }

    @SuppressLint("NewApi")
    public void onCreate() {

        System.out.println("服务启动成功。。。。。。。。。。");
        hd1.postDelayed(mTasks, delay);

    }

    private Runnable mTasks = new Runnable() {
        @SuppressLint("NewApi")
        public void run() {
            android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_FOREGROUND);
            if (checkMainAppIsActive()) {
                Log.d(TAG, "服务检测主应用还在运行");

            } else {
                Log.d(TAG, "服务检测主应用已经关闭");
                Intent intent = getPackageManager().getLaunchIntentForPackage(
                        "cn.start.test");
                if (intent != null) {
                    DaemonService.this.startActivity(intent);
                    Log.d(TAG, "服务启动主应用程序。");
                } else {
                    Log.d(TAG, "服务检测到没有安装主应用，自动退出。");
                    return;
                }
            }
            hd1.postDelayed(mTasks, delay);

        }
    };

    /**
     * 检测是否主程序是否还在运行
     * @return
     */
    @SuppressLint({ "NewApi", "NewApi" })
    public boolean checkMainAppIsActive(){
        ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
        //获取正在运行的应用
        List<RunningAppProcessInfo> run = am.getRunningAppProcesses();
        for(RunningAppProcessInfo ra : run){
            if(ra.processName.equals("cn.start.test")){
                return true;
            }
        }
        return false;
    }
}

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        Intent i = new Intent(context,LoginActivity.class);
        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);

       
        Intent serviceIntent = new Intent(context,DaemonService.class);
        context.startService(serviceIntent);
    }
}