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android development tutorial for beginners

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Today we learn in this video, how to learn android development and learn coding in an easy way and you can make your own application through the android studio. so, please watch this video full.

Step-1

  • Open your Android Studio
  • Click on Start a New Android Studio Project.
  • Give your Application Name wctutorialcalculator  and leave other fields blank as it is, then clicks NEXT.

Step-2

  • Select the Minimum SDK API 15: Android 4.0.3(IceCreamSandwich). I selected because it covers almost 94% device and it has almost all the features. If you want to cover 100% device then you can select API 8: Android 2.2(Froyo).

Step-3

  • Select the Empty Activity and click NEXT.
  • Leave the activity name MainActivity as it is and leave everything as it is. Click Finish.

Step-4

  • After clicking Finish, it takes around ~2-3 minutes to build Activity and files.
  • Here is a final project structure for your application.

Step-5

  • Now we have to add our Java code in our MainActivity.java file.
  • So open you MainActivity.java file from left side of IDE (app  -> java -> com.wctutorial.wctutorialcalculator -> MainActivity.java)



  • In-Line 156 – 183: Here we set click listener on “=” button. We put condition like if the user click the Add button the wctutorialAddition value is set True on the click listener of the Add button.

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  • After we set the crunchifyAddition value to false, so that we can perform Add an action again.


Now Ready to run the calculator app.
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