Question

我正在为我的Android应用程序创建一个服务，我希望它在onPostExecute上运行另一个活动。

下面是CheckStatus.class（服务类）

public class CheckStatus extends Service {

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.e("service", "start");
        loop();
        return START_STICKY;
    }
    @Override
    public void onDestroy() {

        super.onDestroy();
        Log.e("service", "stop service");
    }

    private void loop(){
        long endTime = System.currentTimeMillis()+5*1000;
        while (System.currentTimeMillis()<endTime) {
            synchronized (this) {
                try {
                    wait(endTime - System.currentTimeMillis());
                } catch (Exception e) {
                }
            }
        }
        Log.e("service", "Check status");
        new CheckStatusTask().execute();
    }

    private class CheckStatusTask extends AsyncTask<String, Void, Void> {
        char check_online;

        @Override
        protected Void doInBackground(String... params) {

            //call url json POST method

            try {

                //Check return data status

            } catch (Exception e) {
                e.printStackTrace();
                check_online = '2';
            }
            return null;
        }

        @Override
        protected void onPostExecute(Void result) {
            super.onPostExecute(result);
            dialog.dismiss();
            if (check_online == '1') {
                Toast.makeText(getApplicationContext(), "online", Toast.LENGTH_SHORT).show();

            } else {
                Toast.makeText(getApplicationContext(), "offline", Toast.LENGTH_LONG).show();
            }
        }

    }
}

所以我尝试在另一个活动上调用该服务

    @Override
    protected void onPostExecute(Void result) {
        super.onPostExecute(result);

        Intent check_status = new Intent(MainActivity.this,CheckStatus.class);
        startService(check_status);

    }

但这没有运行。

如何让它运行（服务）？

Answer 1

请在manifest.xml中添加以下内容

<service
                android:name=".NameOfService">
 </service>

Android服务未在onPostExecute中运行

1 个答案: