2.创建一个BroadcastReceiver类来处理开机完成广播并启动服务。
public class BootCompletedReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {
Intent serviceIntent = new Intent(context, MyService.class);
context.startService(serviceIntent);
}
}
}
3.编写服务类以执行Http请求。
public class MyService extends Service {
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
makeHttpRequest();
return super.onStartCommand(intent, flags, startId);
}
private void makeHttpRequest() {
String url = "http://example.com/api/getData";
RequestQueue queue = Volley.newRequestQueue(this);
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener() {
@Override
public void onResponse(String response) {
Log.d("HTTP Response", response);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e("HTTP Error", error.toString());
}
});
queue.add(stringRequest);
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
}
记得在AndroidManifest.xml文件中注册服务:
现在,每当设备启动后,这个BootCompletedReceiver接收器将运行,并启动我们的服务,这个服务将执行Http请求。