So let me answer that based on my list of “whens” from above.Android provides a long list of “input types” that you can set in the layout XML to “set the user up for success” so that they can only enter permissible characters or numbers.I'm using On Focus Change Listeners to trigger the validation after the user types into each one, but this doesn't behave as desired for the last Edit Text. But when we have considerable amount of elements on screen which need validation, toasts don't seem to be the correct choice.(IMHO, It would annoy the user) I have been experimenting with Text Error() (developer.android.com/reference/android/widget/…If I click on the "Done" button while typing into the final Edit Text then the Input Method is disconnected, but technically focus is never lost on the Edit Text (and so validation never occurs). Should I be monitoring when the Input Method unbinds from each Edit Text rather than when focus changes? That's exactly what I want: for the text to be verified when the user clicks the Done button (by Done button I mean the "Done" button on the QWERTY Input Manager... Except that when I hit the Done button, focus stays on the last element in the form, and my validation method is never triggered. In order to reduce the verbosity of the validation logic I have authored a library for Android.
He is a thought leader in the fusion of design and mobile technologies.In this example we will create an simple Signup form as attached in the screenshot below. Edit Text widget in android allows us to enter data in UI like html web forms. to recognize a feature name but temporarily be unable to return its value.Some feature values may be available only in specific contexts, such as before, during, or after a validation.