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all right so in this android studio tutorial im going to be showing you how to create a saved instance state and essentially what this does it saves the data that youve entered on the screen and make sure that when you rotate the screen and it destroys the activity that it will safely be restored so you dont have to worry about those increments that just disappear out of nowhere and if youre new to development this is going to be a very basic problem such as what you see on the screen right now you increment the number but as soon as you rotate the screen it disappears but lets get started immediately by going to our activity main xml and here i created a relative layout in which i inserted a text view with an id of tv underscore increments set the text to zero and finally set text size to 70sp so you can actually see it then we go to our main activity kotlin file and were going to create a variable called increment number and were going to assign this to zero now were going to