README.md

like_button

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Like Button is a flutter library that allows you to create a button with animation effects similar to Twitter's heart when you like something and animation effects to increase like count.

Reference codes from jd-alexander and 吉原拉面 ,thank them for open source code.

Web Demo for LikeButton

• like_button
  • How to use it.
  • The time to send your request
  • parameters

How to use it.

the default effects is Icons.favorite

  LikeButton(),

and you can also define custom effects.

  LikeButton(
          size: buttonSize,
          circleColor:
              CircleColor(start: Color(0xff00ddff), end: Color(0xff0099cc)),
          bubblesColor: BubblesColor(
            dotPrimaryColor: Color(0xff33b5e5),
            dotSecondaryColor: Color(0xff0099cc),
          ),
          likeBuilder: (bool isLiked) {
            return Icon(
              Icons.home,
              color: isLiked ? Colors.deepPurpleAccent : Colors.grey,
              size: buttonSize,
            );
          },
          likeCount: 665,
          countBuilder: (int count, bool isLiked, String text) {
            var color = isLiked ? Colors.deepPurpleAccent : Colors.grey;
            Widget result;
            if (count == 0) {
              result = Text(
                "love",
                style: TextStyle(color: color),
              );
            } else
              result = Text(
                text,
                style: TextStyle(color: color),
              );
            return result;
          },
        ),

The time to send your request

    LikeButton(
      onTap: onLikeButtonTapped,
    ),

  Future<bool> onLikeButtonTapped(bool isLiked) async{
    /// send your request here
    // final bool success= await sendRequest();

    /// if failed, you can do nothing
    // return success? !isLiked:isLiked;

    return !isLiked;
  }

parameters

parameter	description	default
size	size of like widget	30.0
animationDuration	animation duration to change isLiked state	const Duration(milliseconds: 1000)
bubblesSize	total size of bubbles	size * 2.0
bubblesColor	colors of bubbles	const BubblesColor(dotPrimaryColor: const Color(0xFFFFC107),dotSecondaryColor: const Color(0xFFFF9800),dotThirdColor: const Color(0xFFFF5722),dotLastColor: const Color(0xFFF44336),)
circleSize	final size of circle	size * 0.8
circleColor	colors of circle	const CircleColor(start: const Color(0xFFFF5722), end: const Color(0xFFFFC107)
onTap	tap call back of like button，you can handle your request in this call back
isLiked	whether it is liked(if it's null, always show like animation and increase like count)	false
likeCount	if null, will not show)	null
mainAxisAlignment	MainAxisAlignment for like button	MainAxisAlignment.center
likeBuilder	builder to create like widget	null
countBuilder	builder to create like count widget	null
likeCountAnimationDuration	animation duration to change like count	const Duration(milliseconds: 500)
likeCountAnimationType	animation type to change like count(none,part,all)	LikeCountAnimationType.part
likeCountPadding	padding for like count widget	const EdgeInsets.only(left: 3.0)
countPostion	top,right,bottom,left of like button widget	CountPostion.right
countDecoration	decoration of like count widget	null
postFrameCallback	call back of first frame with LikeButtonState	null