2. Autozoominimageviewan imageview which can auto zoom in by keeping center of the content draw at the center of the view
3. Mddialoga material designed style dialog, can add operation of content view, set messages, respond to onclick of messages items and so on
6. Expandabletextviewan ExpandableTextView on Android platform which can shrink TextView height if its line count is greater than a certain number, it also can toggle state between expand and shrink
7. Avatarimageviewan AvatarImageView on Android platform which can display circle text or circle image
8. MaxHeightViewa ViewGroup which can limit the max height of its child view, used on android platform