Four implementation methods of Android button click event
There are four ways to implement button click events in Android. The specific contents are as follows
1. Add the listening attribute in XML. The doclick added here.
Add the doclick implementation method in the activity. The method implemented in activity should be the same as the attribute name added in XML, which is not recommended for actual development.
2. Anonymous inner class implementation.
3. User defined click event implementation.
4. The activity inherits the view.onclicklistener and implements the onclick (view) method.
Note: when the number of buttons is small, the second method, anonymous internal class, is recommended; On the contrary, it is recommended to use the fourth activity, which inherits the implementation of view.onclicklistener.
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