问题
I have registered registerOnSharedPreferenceChangeListener with my SharedPreferences in my Activity. When I change the data saved with SharedPreferences inside service running in different process, onSharedPreferenceChanged is not called!
What should I do to make android call onSharedPreferenceChanged?
回答1:
Most likely, it is being garbage collected by gc. I have faced this problem before. Make a global variable which keeps a hard reference to the listener.
OnSharedPreferenceChangeListener listener = new SharedPreferences.OnSharedPreferenceChangeListener() {
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
// Implementation
}
};
The answer at SharedPreferences.onSharedPreferenceChangeListener not being called consistently explains it best
来源：https://stackoverflow.com/questions/10150480/registeronsharedpreferencechangelistener-not-working-for-changes-made-in-differe