如何接收TIME_TICK意图

Question

This isn't a very advanced question, I just don't understand how exactly to receive intents in Android. I want to update a clock app (only when it's in the foreground) every minute. I guess I have to create a class that extends BroadcastReceiver, and implement the method onReceive(Context context, Intent intent) , and add an intent filter in my AdroidManifest.xml? How do I add that filter? Is that the only thing that makes the intent received ACTION_TIME_TICK?

Answer 1

如Android SDK参考所指出，您必须通过以下方式显式注册此意图：

Context.registerReceiver().