Keyboard events handling in Android
In Android, keyboard events are handled using the KeyEvent class. This class provides constants for different key events like KEYCODE_ENTER, KEYCODE_BACK, KEYCODE_HOME, etc.
To handle a keyboard event, you can override the onKeyDown or onKeyUp method of your Activity or View class. For example, the following code shows how to handle the KEYCODE_ENTER event:
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_ENTER) {
// Handle the ENTER key press
return true;
}
return super.onKeyDown(keyCode, event);
}
Similarly, the onKeyUp method can be used to handle the release of a key:
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_ENTER) {
// Handle the ENTER key release
return true;
}
return super.onKeyUp(keyCode, event);
} Note that you should return true from these methods if you have handled the event, otherwise return false to allow the system to handle it.
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