private void setAnimatorValue(boolean checked) {
if (checked) {
mCurProperty.mCircleColor = mCheckedPaintColor;
mCurProperty.mSweepAngle = 360;
} else {
mCurProperty.mCircleColor = mUnCheckedPaintColor;
mCurProperty.mSweepAngle = 0;
}
invalidate();
}
@Override
public AnimatorProperty evaluate(
float fraction, AnimatorProperty startValue, AnimatorProperty endValue) {
// Values
mProperty.mSweepAngle =
(int)
(startValue.mSweepAngle + (endValue.mSweepAngle - startValue.mSweepAngle) * fraction);
// Color
int startA = (startValue.mCircleColor >> 24) & 0xff;
int startR = (startValue.mCircleColor >> 16) & 0xff;
int startG = (startValue.mCircleColor >> 8) & 0xff;
int startB = startValue.mCircleColor & 0xff;
int endA = (endValue.mCircleColor >> 24) & 0xff;
int endR = (endValue.mCircleColor >> 16) & 0xff;
int endG = (endValue.mCircleColor >> 8) & 0xff;
int endB = endValue.mCircleColor & 0xff;
mProperty.mCircleColor =
(startA + (int) (fraction * (endA - startA))) << 24
| (startR + (int) (fraction * (endR - startR))) << 16
| (startG + (int) (fraction * (endG - startG))) << 8
| (startB + (int) (fraction * (endB - startB)));
return mProperty;
}
/**
* =============================================================================================
* The Animate
* =============================================================================================
*/
private void animateCheckedState(boolean newCheckedState) {
AnimatorProperty property = new AnimatorProperty();
if (newCheckedState) {
property.mSweepAngle = 360;
property.mCircleColor = mCheckedPaintColor;
} else {
property.mSweepAngle = 0;
property.mCircleColor = mUnCheckedPaintColor;
}
if (mAnimator == null) {
mAnimator =
ObjectAnimator.ofObject(this, ANIM_VALUE, new AnimatorEvaluator(mCurProperty), property);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2)
mAnimator.setAutoCancel(true);
mAnimator.setDuration(ANIMATION_DURATION);
mAnimator.setInterpolator(ANIMATION_INTERPOLATOR);
} else {
mAnimator.cancel();
mAnimator.setObjectValues(property);
}
mAnimator.start();
}