android模仿微信朋友圈图片预览转场缩放动画

先上效果图

其实实现起来非常简单，比如现在有两个Activity：GridActivity跳转DetailActivity，首先在GridActivity跳转DetailActivity的代码上加入ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, imageView, "ABC");，ABC随意起了一个名字。

Intent intent = new Intent(activity, DetailActivity.class);intent.putExtra("IMGURL", imgs.get(position));ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, imageView, "ABC");activity.startActivity(intent, options.toBundle());

然后在DetailActivity中加入ViewCompat.setTransitionName(imageView, "ABC");

就轻松实现了。