void setIndicatorColors(int... colors) {
            mIndicatorColors = colors;
        }
Blend {@code color1} and {@code color2} using the given ratio.

@param ratio of which to blend. 1.0 will return {@code color1}, 0.5 will give an even blend,
             0.0 will return {@code color2}.
SwipeRefreshMultipleViews/Application/src/main/java/com/example/android/common/view/SlidingTabStrip.java