跨应用启动Service

Posted 2020-07-26

 1 package com.example.metrox.l16;
 2 
 3 import android.app.Service;
 4 import android.content.Intent;
 5 import android.os.IBinder;
 6 
 7 public class AppService extends Service {
 8 
 9 
10     public AppService() {
11     }
12 
13     @Override
14     public IBinder onBind(Intent intent) {
15         // TODO: Return the communication channel to the service.
16         throw new UnsupportedOperationException("Not yet implemented");
17     }
18 
19     @Override
20     public int onStartCommand(Intent intent, int flags, int startId) {
21         return super.onStartCommand(intent, flags, startId);
22     }
23 
24     @Override
25     public void onCreate() {
26         super.onCreate();
27         System.out.println("Service OnCreate");
28     }
29 
30     @Override
31     public void onDestroy() {
32         super.onDestroy();
33         System.out.println("Service OnDestroy");
34     }
35 }

 1 package com.example.metrox.l16;
 2 
 3 import android.content.Intent;
 4 import android.support.v7.app.AppCompatActivity;
 5 import android.os.Bundle;
 6 
 7 public class MainActivity extends AppCompatActivity {
 8 
 9     @Override
10     protected void onCreate(Bundle savedInstanceState) {
11         super.onCreate(savedInstanceState);
12         setContentView(R.layout.activity_main);
13         startService(new Intent(this,AppService.class));
14     }
15 
16     @Override
17     protected void onDestroy() {
18         super.onDestroy();
19         stopService(new Intent(this,AppService.class));
20     }
21 }

 1 package com.example.testapp;
 2 
 3 import android.content.ComponentName;
 4 import android.content.Intent;
 5 import android.support.v7.app.AppCompatActivity;
 6 import android.os.Bundle;
 7 import android.view.View;
 8 import android.widget.TextView;
 9 
10 public class MainActivity extends AppCompatActivity implements View.OnClickListener {
11 
12     private TextView textView;
13     private Intent intent;
14     @Override
15     protected void onCreate(Bundle savedInstanceState) {
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.activity_main);
18         intent = new Intent();
19         intent.setComponent(new ComponentName("com.example.metrox.l16","com.example.metrox.l16.AppService"));
20         textView = (TextView) findViewById(R.id.textView);
21         findViewById(R.id.btnStartAppService).setOnClickListener(this);
22         findViewById(R.id.btnStopAppService).setOnClickListener(this);
23     }
24 
25     @Override
26     public void onClick(View view) {
27         switch (view.getId()) {
28             case R.id.btnStartAppService:
29 
30                 startService(intent);
31                 break;
32             case R.id.btnStopAppService:
33                 stopService(intent);
34                 break;
35         }
36     }
37 }