服务已在运行，但不应使用后台服务代码定位

Question

I am having an app that has to get the location of where I am in many activities. I found this very helpful complete piece of code here . Its how to Get Current Location Using Background Service. I implemented it in my code. The first time it worked ok. The next, when it reached this if

if (mPref.getString("service", "").matches("")) {
        medit.putString("service", "service").commit();
        Intent intent = new Intent(getApplicationContext(), GoogleService.class);
        startService(intent);

 } else {
        Toast.makeText(getApplicationContext(), "Service is already running", Toast.LENGTH_SHORT).show();
  }

I get the message that service is already running. Why this happens? I have closed and reopened the app, why the service still running? Help pls, its very important, thank you

Answer 1

如果您使用SharedPreferences保留有关Service的信息，则该信息将在应用程序重启后继续存在，因此您的if条件始终为false （当您执行mPref.commit() ，会将密钥对保存到文件中）。