Android tutorials-7-Simple UI Calculator with EditText, TextView and Button

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This video shows you how to make a simple Calculator app. The app contains some of User Interface(UI) like EditText, TextView and Button. You can add action event to Button. When user touches to the button, it will calculate sum of 2 input operants in EditTexts.In the case there are no text input, the EditText will show the text hint. SUBSCRIBE TO CHANNEL: https://www.youtube.com/c/NguyenDucHoang Twitter: https://twitter.com/NguyenD97601913 Facebook: https://www.facebook.com/nguyen.duc.hoang.bk