protected int measureZDepthPadding(ZDepth zDepth) {
float maxAboveBlurRadius = zDepth.getBlurTopShadowPx(getContext());
float maxAboveOffset = zDepth.getOffsetYTopShadowPx(getContext());
float maxBelowBlurRadius = zDepth.getBlurBottomShadowPx(getContext());
float maxBelowOffset = zDepth.getOffsetYBottomShadowPx(getContext());
float maxAboveSize = maxAboveBlurRadius + maxAboveOffset;
float maxBelowSize = maxBelowBlurRadius + maxBelowOffset;
return (int) Math.max(maxAboveSize, maxBelowSize);
}
protected void changeZDepth(ZDepth zDepth) {
int newAlphaTopShadow = zDepth.getAlphaTopShadow();
int newAlphaBottomShadow = zDepth.getAlphaBottomShadow();
float newOffsetYTopShadow = zDepth.getOffsetYTopShadowPx(getContext());
float newOffsetYBottomShadow = zDepth.getOffsetYBottomShadowPx(getContext());
float newBlurTopShadow = zDepth.getBlurTopShadowPx(getContext());
float newBlurBottomShadow = zDepth.getBlurBottomShadowPx(getContext());
if (!mZDepthDoAnimation) {
mZDepthParam.mAlphaTopShadow = newAlphaTopShadow;
mZDepthParam.mAlphaBottomShadow = newAlphaBottomShadow;
mZDepthParam.mOffsetYTopShadowPx = newOffsetYTopShadow;
mZDepthParam.mOffsetYBottomShadowPx = newOffsetYBottomShadow;
mZDepthParam.mBlurTopShadowPx = newBlurTopShadow;
mZDepthParam.mBlurBottomShadowPx = newBlurBottomShadow;
mShadow.setParameter(
mZDepthParam,
mZDepthPaddingLeft,
mZDepthPaddingTop,
getWidth() - mZDepthPaddingRight,
getHeight() - mZDepthPaddingBottom);
invalidate();
return;
}
int nowAlphaTopShadow = mZDepthParam.mAlphaTopShadow;
int nowAlphaBottomShadow = mZDepthParam.mAlphaBottomShadow;
float nowOffsetYTopShadow = mZDepthParam.mOffsetYTopShadowPx;
float nowOffsetYBottomShadow = mZDepthParam.mOffsetYBottomShadowPx;
float nowBlurTopShadow = mZDepthParam.mBlurTopShadowPx;
float nowBlurBottomShadow = mZDepthParam.mBlurBottomShadowPx;
PropertyValuesHolder alphaTopShadowHolder =
PropertyValuesHolder.ofInt(
ANIM_PROPERTY_ALPHA_TOP_SHADOW, nowAlphaTopShadow, newAlphaTopShadow);
PropertyValuesHolder alphaBottomShadowHolder =
PropertyValuesHolder.ofInt(
ANIM_PROPERTY_ALPHA_BOTTOM_SHADOW, nowAlphaBottomShadow, newAlphaBottomShadow);
PropertyValuesHolder offsetTopShadowHolder =
PropertyValuesHolder.ofFloat(
ANIM_PROPERTY_OFFSET_TOP_SHADOW, nowOffsetYTopShadow, newOffsetYTopShadow);
PropertyValuesHolder offsetBottomShadowHolder =
PropertyValuesHolder.ofFloat(
ANIM_PROPERTY_OFFSET_BOTTOM_SHADOW, nowOffsetYBottomShadow, newOffsetYBottomShadow);
PropertyValuesHolder blurTopShadowHolder =
PropertyValuesHolder.ofFloat(
ANIM_PROPERTY_BLUR_TOP_SHADOW, nowBlurTopShadow, newBlurTopShadow);
PropertyValuesHolder blurBottomShadowHolder =
PropertyValuesHolder.ofFloat(
ANIM_PROPERTY_BLUR_BOTTOM_SHADOW, nowBlurBottomShadow, newBlurBottomShadow);
ValueAnimator anim =
ValueAnimator.ofPropertyValuesHolder(
alphaTopShadowHolder,
alphaBottomShadowHolder,
offsetTopShadowHolder,
offsetBottomShadowHolder,
blurTopShadowHolder,
blurBottomShadowHolder);
anim.setDuration(mZDepthAnimDuration);
anim.setInterpolator(new LinearInterpolator());
anim.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int alphaTopShadow =
(Integer) animation.getAnimatedValue(ANIM_PROPERTY_ALPHA_TOP_SHADOW);
int alphaBottomShadow =
(Integer) animation.getAnimatedValue(ANIM_PROPERTY_ALPHA_BOTTOM_SHADOW);
float offsetTopShadow =
(Float) animation.getAnimatedValue(ANIM_PROPERTY_OFFSET_TOP_SHADOW);
float offsetBottomShadow =
(Float) animation.getAnimatedValue(ANIM_PROPERTY_OFFSET_BOTTOM_SHADOW);
float blurTopShadow = (Float) animation.getAnimatedValue(ANIM_PROPERTY_BLUR_TOP_SHADOW);
float blurBottomShadow =
(Float) animation.getAnimatedValue(ANIM_PROPERTY_BLUR_BOTTOM_SHADOW);
mZDepthParam.mAlphaTopShadow = alphaTopShadow;
mZDepthParam.mAlphaBottomShadow = alphaBottomShadow;
mZDepthParam.mOffsetYTopShadowPx = offsetTopShadow;
mZDepthParam.mOffsetYBottomShadowPx = offsetBottomShadow;
mZDepthParam.mBlurTopShadowPx = blurTopShadow;
mZDepthParam.mBlurBottomShadowPx = blurBottomShadow;
mShadow.setParameter(
mZDepthParam,
mZDepthPaddingLeft,
mZDepthPaddingTop,
getWidth() - mZDepthPaddingRight,
getHeight() - mZDepthPaddingBottom);
invalidate();
}
});
anim.start();
}