/**
* This function updates the dots view and the circle view with the respective sizes based on the
* size of the icon being used.
*/
private void setEffectsViewSize() {
if (iconSize != 0) {
dotsView.setSize(
(int) (iconSize * animationScaleFactor), (int) (iconSize * animationScaleFactor));
circleView.setSize(iconSize, iconSize);
}
}
/**
* Does all the initial setup of the button such as retrieving all the attributes that were set in
* xml and inflating the like button's view and initial state.
*
* @param context
* @param attrs
* @param defStyle
*/
private void init(Context context, AttributeSet attrs, int defStyle) {
LayoutInflater.from(getContext()).inflate(R.layout.likeview, this, true);
icon = (ImageView) findViewById(R.id.icon);
dotsView = (DotsView) findViewById(R.id.dots);
circleView = (CircleView) findViewById(R.id.circle);
final TypedArray array =
context.obtainStyledAttributes(attrs, R.styleable.LikeButton, defStyle, 0);
iconSize = array.getDimensionPixelSize(R.styleable.LikeButton_icon_size, -1);
if (iconSize == -1) iconSize = 40;
String iconType = array.getString(R.styleable.LikeButton_icon_type);
likeDrawable = array.getDrawable(R.styleable.LikeButton_like_drawable);
if (likeDrawable != null) setLikeDrawable(likeDrawable);
unLikeDrawable = array.getDrawable(R.styleable.LikeButton_unlike_drawable);
if (unLikeDrawable != null) setUnlikeDrawable(unLikeDrawable);
if (iconType != null) if (!iconType.isEmpty()) currentIcon = parseIconType(iconType);
circleStartColor = array.getColor(R.styleable.LikeButton_circle_start_color, 0);
if (circleStartColor != 0) circleView.setStartColor(circleStartColor);
circleEndColor = array.getColor(R.styleable.LikeButton_circle_end_color, 0);
if (circleEndColor != 0) circleView.setEndColor(circleEndColor);
dotPrimaryColor = array.getColor(R.styleable.LikeButton_dots_primary_color, 0);
dotSecondaryColor = array.getColor(R.styleable.LikeButton_dots_secondary_color, 0);
if (dotPrimaryColor != 0 && dotSecondaryColor != 0) {
dotsView.setColors(dotPrimaryColor, dotSecondaryColor);
}
if (likeDrawable == null && unLikeDrawable == null) {
if (currentIcon != null) {
setLikeDrawableRes(currentIcon.getOnIconResourceId());
setUnlikeDrawableRes(currentIcon.getOffIconResourceId());
} else {
currentIcon = parseIconType(IconType.Heart);
setLikeDrawableRes(currentIcon.getOnIconResourceId());
setUnlikeDrawableRes(currentIcon.getOffIconResourceId());
}
}
setEnabled(array.getBoolean(R.styleable.LikeButton_enabled, true));
Boolean status = array.getBoolean(R.styleable.LikeButton_liked, false);
setAnimationScaleFactor(array.getFloat(R.styleable.LikeButton_anim_scale_factor, 3));
setLiked(status);
setOnClickListener(this);
array.recycle();
}
/**
* This set sets the colours that are used for the little dots that will be exploding once the
* like button is clicked.
*
* @param primaryColor
* @param secondaryColor
*/
public void setExplodingDotColorsRes(@ColorRes int primaryColor, @ColorRes int secondaryColor) {
dotsView.setColors(
ContextCompat.getColor(getContext(), primaryColor),
ContextCompat.getColor(getContext(), secondaryColor));
}
/**
* This triggers the entire functionality of the button such as icon changes, animations,
* listeners etc.
*
* @param v
*/
@Override
public void onClick(View v) {
if (!isEnabled) return;
if (isChecked) return;
isChecked = !isChecked;
icon.setImageDrawable(isChecked ? likeDrawable : unLikeDrawable);
if (likeListener != null) {
if (isChecked) {
likeListener.liked(this);
} else {
likeListener.unLiked(this);
}
}
if (animatorSet != null) {
animatorSet.cancel();
}
if (isChecked) {
icon.animate().cancel();
icon.setScaleX(0);
icon.setScaleY(0);
circleView.setInnerCircleRadiusProgress(0);
circleView.setOuterCircleRadiusProgress(0);
dotsView.setCurrentProgress(0);
animatorSet = new AnimatorSet();
ObjectAnimator outerCircleAnimator =
ObjectAnimator.ofFloat(circleView, CircleView.OUTER_CIRCLE_RADIUS_PROGRESS, 0.1f, 1f);
outerCircleAnimator.setDuration(250);
outerCircleAnimator.setInterpolator(DECCELERATE_INTERPOLATOR);
ObjectAnimator innerCircleAnimator =
ObjectAnimator.ofFloat(circleView, CircleView.INNER_CIRCLE_RADIUS_PROGRESS, 0.1f, 1f);
innerCircleAnimator.setDuration(200);
innerCircleAnimator.setStartDelay(200);
innerCircleAnimator.setInterpolator(DECCELERATE_INTERPOLATOR);
ObjectAnimator starScaleYAnimator = ObjectAnimator.ofFloat(icon, ImageView.SCALE_Y, 0.2f, 1f);
starScaleYAnimator.setDuration(350);
starScaleYAnimator.setStartDelay(250);
starScaleYAnimator.setInterpolator(OVERSHOOT_INTERPOLATOR);
ObjectAnimator starScaleXAnimator = ObjectAnimator.ofFloat(icon, ImageView.SCALE_X, 0.2f, 1f);
starScaleXAnimator.setDuration(350);
starScaleXAnimator.setStartDelay(250);
starScaleXAnimator.setInterpolator(OVERSHOOT_INTERPOLATOR);
ObjectAnimator dotsAnimator = ObjectAnimator.ofFloat(dotsView, DotsView.DOTS_PROGRESS, 0, 1f);
dotsAnimator.setDuration(900);
dotsAnimator.setStartDelay(50);
dotsAnimator.setInterpolator(ACCELERATE_DECELERATE_INTERPOLATOR);
animatorSet.playTogether(
outerCircleAnimator,
innerCircleAnimator,
starScaleYAnimator,
starScaleXAnimator,
dotsAnimator);
animatorSet.addListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationCancel(Animator animation) {
circleView.setInnerCircleRadiusProgress(0);
circleView.setOuterCircleRadiusProgress(0);
dotsView.setCurrentProgress(0);
icon.setScaleX(1);
icon.setScaleY(1);
}
});
animatorSet.start();
}
}