How to make a view that layout_height must equal to layout_width ?

32 How to make a view that layout_height must equal to layout_width ?

ref:http://stackoverflow.com/questions/28845938/how-to-achieve-equal-layout-width-and-layout-height

You can create a custom subclass of Button and override onMeasure, for example:

public class SquareButton extends Button {    public SquareButton(Context context) {        super(context);    }    public SquareButton(Context context, AttributeSet attrs) {        super(context, attrs);    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        super.onMeasure(widthMeasureSpec, heightMeasureSpec);        setMeasuredDimension(getMeasuredWidth(), getMeasuredWidth());    } }

To use SquareButton in your layout file, change your Button declarations to the following:

<your.package.name.SquareButton    android:id="@+id/photos_photoButton1"    android:layout_width="[DESIRED WIDTH]dp"    android:layout_height="0dp"    android:layout_marginLeft="5dp"    android:layout_marginRight="5dp"    />