Implement Back Button || Solve NullPointerException while Setting Back Button in Android Studio

Описание

How to Implement Back Button in action bar in android studio and how to fix NullPointerException error while setting back button in action bar. This exception happens when there is a class between two activities.

This Back Button has been applied in this video :
Photo Editor App For Images loaded From URL in android studio using Glide Library : https://youtu.be/SefgahnnWZw

Few Recommendations :

1. Photo Editor App Android Studio for Drawable Image : https://youtu.be/JzTTktkZyIs

2. Getting an Error While Adding Image To Drawable : https://youtu.be/l4BJ_uoa9_Y

#androidstudio #nullpointerexception #backbutton

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