Android: is there any additional information from Intent.ACTION_TIME_CHANGED?

问题

Is there any additional information available from Intent.ACTION_TIME_CHANGED? There's nothing in getData() or getExtras().

I would like to know:

• The time phone had before setting new time;

• Who has changed the time: the user (manually) or the phone carrier?

Any other way to get those informations are welcome!

回答1:

I looked into source code of Android and this broadcast doesn't have any extras. So, there is no way to learn this info.

回答2:

You can do one thing if the accuracy of previous time is not that important. You can get the previous time with +/- 1 minute accurate by following way..

Register for broadcast action ACTION_TIME_TICK (This will be broadcasted every minute).

When ever the time ticks, if there is a difference of more than 1 minute between your current time and last tick time, you can infer that there occured a time change. After that you just update the new time to shared preference. Thats all.

1. Register for ACTION_TIME_TICK broadcast.
2. When broadcast received : 2.1 If first time broadcast, Enter the current system time to Shared Preference. 2.2 else compare the current time with previously entered time and if occurs a difference of more than 1 minute, means the time time has changed. Then update the new system time to SP.

Happy coding.

来源：https://stackoverflow.com/questions/7756493/android-is-there-any-additional-information-from-intent-action-time-changed