[android] findViewById casting bolierplate removal.

android, findViewById casting bolierplate removal.

<boilerplate casting removal>

@SuppressWarnings("unchecked")

public final <E extends View> E findView (int id) {

    return (E) findViewById(id);

}

<사용방법>

@Override

public void onCreate (Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

TextView textView = findView(R.id.textview);

Button button = findView(R.id.button);

ImageView image = findView(R.id.imageview);

    myMethod( findView(R.id.imageview) ); //Will not compile

    myMethod( (ImageView) findView(R.id.imageview) ); //Compiles

}

private static void myMethod ( ImageView img ) {

    //Do nothing

}

boilerplate, Cast, Casting, findviewbyid boilerplate, Generic, Removal, SuppressWarnings, [android] findViewById bolierplate removal., 제네릭, findView