Checks if value belongs to range <code>[start, end]</code> @param value value @param start start of range @param end end of range @return true if valu

Normalize value between minimum and maximum. @param val value @param minVal minimum value @param maxVal maximum value @return normalized value in rang

Enlarge value from startValue to endValue @param startValue start size @param endValue end size @param time time of animation @return new size value

Reduce value from startValue to endValue @param startValue start size @param endValue end size @param time time of animation @return new size value

Stop animation.

Check current state of animation. @return true if animation is running, false otherwise

Pause animation. It behaves like {@link #stopAnimation()} on API < 19.

Start animation.

Trapeze function. @param t current value @param a value at <b>aT</b> point of time @param aT first point @param b value at <b>bT</b> point of time @pa

Create new dialog fragment with loading animation. @return created dialog fragment.

Rotate point P around center point C. @param pX x coordinate of point P @param pY y coordinate of point P @param cX x coordinate of point C @param cY

Rotate point P around center point C. @param pX x coordinate of point P @param pY y coordinate of point P @param cX x coordinate of point C @param cY