public void setScrimAlpha(@FloatRange(from = 0f, to = 1f) float alpha) {
if (scrimAlpha != alpha) {
scrimAlpha = alpha;
scrimPaint.setColor(ColorUtils.modifyAlpha(scrimColor, scrimAlpha));
ViewCompat.postInvalidateOnAnimation(this);
}
}
public ParallaxScrimageView(Context context, AttributeSet attrs) {
super(context, attrs);
final TypedArray a =
getContext().obtainStyledAttributes(attrs, R.styleable.ParallaxScrimageView);
if (a.hasValue(R.styleable.ParallaxScrimageView_scrimColor)) {
scrimColor = a.getColor(R.styleable.ParallaxScrimageView_scrimColor, scrimColor);
}
if (a.hasValue(R.styleable.ParallaxScrimageView_scrimAlpha)) {
scrimAlpha = a.getFloat(R.styleable.ParallaxScrimageView_scrimAlpha, scrimAlpha);
}
if (a.hasValue(R.styleable.ParallaxScrimageView_maxScrimAlpha)) {
maxScrimAlpha = a.getFloat(R.styleable.ParallaxScrimageView_maxScrimAlpha, maxScrimAlpha);
}
if (a.hasValue(R.styleable.ParallaxScrimageView_parallaxFactor)) {
parallaxFactor = a.getFloat(R.styleable.ParallaxScrimageView_parallaxFactor, parallaxFactor);
}
a.recycle();
scrimPaint = new Paint();
scrimPaint.setColor(ColorUtils.modifyAlpha(scrimColor, scrimAlpha));
}