java - 分钟更改时不调用 TIME_TICK

Question

我遇到的问题是，当时间更改时，TIME_TICK 仅在应用程序运行时调用。但我想在应用程序正在运行或不使用广播接收器时调用它。

主要 Activity

public class MainActivity extends Activity {
      @Override
      public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      Toast.makeText(getApplicationContext(), "Checking", Toast.LENGTH_LONG).show();
      }
    } 

MyBroadastReceivers

public class MyBroadastReceiversextends BroadcastReceiver
{

    @Override
    public void onReceive(Context arg0, Intent arg1) {

        Toast.makeText(arg0, "Toast Receive", Toast.LENGTH_LONG).show();
    }
}

list 文件

    <receiver android:name="com.example.serviceschecking.MyBroadastReceivers" android:enabled="true" android:exported="true">  
       <intent-filter >
           <action android:name="android.intent.action.TIME_TICK"/>
       </intent-filter>
</receiver> 

Answer 1

如 API 中所述，您必须以编程方式注册此 Intent :

Broadcast Action: The current time has changed. Sent every minute. You can not receive this through components declared in manifests, only by explicitly registering for it with Context.registerReceiver().

例如，您必须在您的 mainActivity 中注册它:

      IntentFilter mTime = new IntentFilter(Intent.ACTION_TIME_TICK);
      registerReceiver(YourReceiver, mTime);