public final void measure(int widthMeasureSpec, int heightMeasureSpec);

        /*** Extracts the mode from the supplied measure specification.** @param measureSpec the measure specification to extract the mode from* @return {@link android.view.View.MeasureSpec#UNSPECIFIED},*         {@link android.view.View.MeasureSpec#AT_MOST} or*         {@link android.view.View.MeasureSpec#EXACTLY}*/public static int getMode(int measureSpec) {return (measureSpec & MODE_MASK);}/*** Extracts the size from the supplied measure specification.** @param measureSpec the measure specification to extract the size from* @return the size in pixels defined in the supplied measure specification*/public static int getSize(int measureSpec) {return (measureSpec & ~MODE_MASK);}

@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}

    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {setMeasuredDimension(getDefaultSize(getSuggestedMinimumWidth(), widthMeasureSpec),getDefaultSize(getSuggestedMinimumHeight(), heightMeasureSpec));}

    public static int getDefaultSize(int size, int measureSpec) {int result = size;int specMode = MeasureSpec.getMode(measureSpec);int specSize = MeasureSpec.getSize(measureSpec);switch (specMode) {case MeasureSpec.UNSPECIFIED:result = size;break;case MeasureSpec.AT_MOST:case MeasureSpec.EXACTLY:result = specSize;break;}return result;}

    protected void measureChildren(int widthMeasureSpec, int heightMeasureSpec) {final int size = mChildrenCount;final View[] children = mChildren;for (int i = 0; i < size; ++i) {final View child = children[i];if ((child.mViewFlags & VISIBILITY_MASK) != GONE) {measureChild(child, widthMeasureSpec, heightMeasureSpec);}}}