On to the second important part of the Android keyboard: Input Method Actions! Input Method Actions, or IME Actions as they’re sometimes called, are a way to change the effect of the carriage return button on the keyboard.
For example, if you’re making a search field, you would change the carriage return button to a search symbol to let the user know what will happen when the button is pressed. Here’s a quick example of some button options.
The blue action button on the keyboard changes each time and allows the user to do different things. Setting Input Method Actions is easy, let’s give it a try!
How to Set Input Method Actions
Just like setting the Input Type back in part 1, setting the input method action is done through xml.
android:inputType often has to be set as well for these to function correctly. Don’t ask me why.
"actionSearch" option is what tells android to display a search icon on the keyboard. Not only is this helpful for the user, it also gives you more control over how to handle button clicks.
Responding to Input Method Actions
In order to respond to a button click on the keyboard, you must set an
OnEditorActionListener on the
EditText you wish to listen to.
OnEditorActionListener has a single callback method,
onEditorAction, that will fire each time the action button is pressed.
The method has three parameters:
textView: the view that receives the input action
actionId: an integer that tells you which action was selected
KeyEvent: an event enum that tells you if the user just pressed down, released, etc.
Here’s how to listen for IME Actions.
onEditorAction returns a
Boolean. If this returns true, you’re telling Android that you’ve consumed the event, and it will not notify any other listeners or take other actions. If you return false, then pressing certain action buttons, like “search” or “done”, will automatically hide the keyboard.
Input Method Actions are a little more complicated than Input Types, but they give you a large amount of control over how the user interacts with the keyboard. Entering text is often frustrating, but using the correct input action can save your users time and make your app mor enjoyable.
Here’s a link to the full documentation