Measure All View Hierarchy Before Drawing In Android

I have next view hiererchy:

Solution 1:

I have find out way to get view width. I can get it after android measuret it but before drawing using OnPreDrawListener in ViewTreeObserver:

    view.getViewTreeObserver().addOnPreDrawListener(newOnPreDrawListener()
    {
        @OverridepublicbooleanonPreDraw()
        {
            int avaliableWidth = view.getWidth() - view.getPaddingLeft() - view.getPaddingRight();

            Log.d("width", String.valueOf(avaliableWidth));

            returntrue;
        }
    });

From Android documentation:

Callback method to be invoked when the view tree is about to be drawn. At this point, all views in the tree have been measured and given a frame. Clients can use this to adjust their scroll bounds or even to request a new layout before drawing occurs.

Solution 2:

This is available since API 1:

@OverrideprotectedvoidonMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);

    intparentWidth= MeasureSpec.getSize(widthMeasureSpec);
    intparentHeight= MeasureSpec.getSize(heightMeasureSpec);
}

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