It is an extends Text View and additional attributes that allows user to input values. It provides wide variety of input controls that enable select, cut, copy, paste of text into Edit Text. We need to prevent a user from key in a wrong input into the text field.So here is my question, From my point of view personally, it should have a way to implement the technique.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.
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.
I have consolidated what I learned here to help future Android developers down the path of validation.
Read on for what I did, and the tips and tricks I learned along the way!
First off I have made a simple layout file, with 3 text fields • First one is for normal text and it is a required field • Second one is a email Address field and it is also required • Third one is a phone Number field and not required chances of errors can be reduced dramatically if you use android:input Type=”X” attribute Now let’s take a look at the class. I have added necessary comments on relevant places I have listed the error messages at the top as constants.
This tutorial show you how to use Edit Text user interface widget in android and write validation for the inputs. He is the author of Xamarin Mobile Application Development for Android Book (goo.gl/q UZ0XV3), DZone MVB and founder of