开机时启动自己服务即可。

app/src/main/java/com/youbay/daemon/BootReceiver.java

 package com.youbay.daemon;
 
-import android.app.ActivityManager;
-import android.app.ActivityManager.RunningServiceInfo;
 import android.content.BroadcastReceiver;
-import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Build;
@@ -12,59 +9,22 @@ import android.os.Build;
  * @author Administrator
  */
 public class BootReceiver extends BroadcastReceiver {
-    static final String ACTION_BOOT = "android.intent.action.BOOT_COMPLETED";
     static final String ACTION_SMDT = "android.intent.action.SMDT_BOOT_COMPLETED";
-    static final String ACTION_AUDIO = "android.media.AUDIO_BECOMING_NOISY";
-
-    private static final String APP_PACKAGE_NAME = "com.youbay.classcard";
-    private static final String DAEMON_SERVICE_NAME = "com.youbay.classcard.service.DaemonService";
-    private static final String DAEMON_SERVICE_ACTION = "com.youbay.classcard.service.DaemonService";
 
     @Override
     public void onReceive(Context context, Intent intent) {
-        if (ACTION_BOOT.equals(intent.getAction())) {
-            System.out.println("-------------BOOT_COMPLETED----------------");
-            startIntent(context);
-        } else if (ACTION_SMDT.equals(intent.getAction())) {
-            System.out.println("-------------SMDT_BOOT_COMPLETED----------------");
-            startIntent(context);
-        } else if (ACTION_AUDIO.equals(intent.getAction())) {
-            System.out.println("-------------AUDIO_BECOMING_NOISY----------------");
-            startIntent(context);
-        }
-    }
-
-    private void startIntent(Context context) {
-
-        /*if (isServiceRunning(context)) {
-            System.out.println("this daemon service is running ..");
-        } else {
-            final Intent daemonIntent = new Intent();
-            daemonIntent.setAction(DAEMON_SERVICE_ACTION);
-            daemonIntent.setComponent(new ComponentName(APP_PACKAGE_NAME, DAEMON_SERVICE_NAME));
-            context.startService(daemonIntent);
-        }*/
-
-        final Intent daemonIntent = new Intent();
-        daemonIntent.setAction(DAEMON_SERVICE_ACTION);
-        daemonIntent.setComponent(new ComponentName(APP_PACKAGE_NAME, DAEMON_SERVICE_NAME));
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            context.startForegroundService(daemonIntent);
-        } else {
-            context.startService(daemonIntent);
+        if (intent == null) {
+            return;
         }
-    }
-
-    private boolean isServiceRunning(Context context) {
-        ActivityManager manager = (ActivityManager) context
-                .getSystemService(Context.ACTIVITY_SERVICE);
-        for (RunningServiceInfo service : manager
-                .getRunningServices(Integer.MAX_VALUE)) {
-            if (DaemonService.class.getName().equals(
-                    service.service.getClassName())) {
-                return true;
+        String action = intent.getAction();
+        if (Intent.ACTION_BOOT_COMPLETED.equals(action) || ACTION_SMDT.equals(action)) {
+            System.out.println("-------------BOOT_COMPLETED----------------");
+            //startIntent(context);
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                context.startForegroundService(new Intent(context, DaemonService.class));
+            } else {
+                context.startService(new Intent(context, DaemonService.class));
             }
         }
-        return false;
     }
 }
\ No newline at end of file