OnBackPressed 用于 Fragment 并关闭菜单项

Question

I have a mainActivity with 3 fragments, in all fragment I have different menu items.

If I open the searchview and press the back button, the program will close but I expect to close the searchview.

How do I enable the back button function to close the menu item?

Answer 1

When you are pressing back, onBackPressed() method of MainActivity is invoked. Just override onBackPressed() in your activity and delete the super.onBackPressed(); finally do your desire task.(you can set a flag to check if the searchview is open then after pressing the back button close it)

@Override
public void onBackPressed() {
   //do your task here...
   //if search is open, close it
}

Answer 2

override your onBackPressed() in your activity. check in there if there is an open fragment. if there is an open fragment you dismiss the fragment, else call super.onBackPressed()