Solution to invalid return key of Android onkeydown listening

Solution to invalid return key of Android onkeydown listening

When our activity inherits tabactivity, overriding onkeydown in this class cannot listen for the return key,

The specific solutions are as follows:

Override dispatchkeyevent

If you only listen for the back key of an activity, you only need to override this method

We can take a look at the default implementation of the super. Onbackpressed () method:

If you want to mask the back key, just annotate the super. Onbackpressed () method

However, this method is not applicable to tabacity

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