问题
I have a Broadcast receiver in a singleton class that's not receiving Broadcast intents.
The singleton is initialized with a context (i.e. getInstance(context)).
I call getContext().sendBroadcast(intent); but the BroadcastReceiver doesn't get anything. I've confirmed the intent filters are matching.
The way I register the receiver is in my singleton constructor like so
private class Singleton(Context context) {
context.registerReceiver(mReceiver, INTENT_FILTER);
....
private onDestroy(Context context) {
context.unregisterReceiver(mReceiver);
....
What's going on!?
回答1:
OK so I figured out what I did wrong. The Singleton is being created by activity and hence the context being passed in is an Activity Context. Hence I needed to update my constructor to this:
private class Singleton(Context context) {
context.getApplicationContext().registerReceiver(mReceiver, INTENT_FILTER);
Not sure why this makes a difference. My guess is that the activity context is destroyed and hence the BroadcastReceiver with it? Additional insight is welcome!
来源：https://stackoverflow.com/questions/18283967/broadcastreceiver-in-singleton-class-not-receiving-intents