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【Android Development for Beginners】Lesson 2A : Debugging a Crash

This Notes is according to the udacity free course :

Android Development for Beginners

Lesson 2A :  Debugging a Crash

This part just watch video is better for understand.

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【Quora 翻譯&筆記】你能從你的Android App 賺多少錢?

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【 Android Development for Beginners】 Lesson 3A : Object Oriented Programming - 4

(I think Lesson 3A is the most important but also the most difficult part for beginner so far ) This Notes is according to the udacity free course : Android Development for Beginners Lesson 3A : Object Oriented Programming Call Method on an objects If We want to call a method on an object object variable name . method name ( input argument ); ex: titleTextView.setText("News"); You need to make sure you put a right object so you can call the method