• 1. Dialog, Toast, Snackbar
• 2. Percent support library
• 3. NestedScrolling Andorid嵌套滑动机制
• 4. TextInputLayout (from android design support library)

1. Dialog, Toast, Snackbar

Dialog, Toast, Snackbar

2. Percent support library

Percent Support Library: Bring dimension in % to RelativeLayout and FrameLayout

• android.support.percent.PercentRelativeLayout
• android.support.percent.PercentFrameLayout

percent-support-library

3. NestedScrolling Andorid嵌套滑动机制

NesedScrolling 特性：

比如你使用了Toolbar，下面一个ScrollView，向上滚动隐藏Toolbar，向下滚动显示Toolbar，这里在逻辑上就是一个NestedScrolling —— 因为你在滚动整个Toolbar在内的View的过程中，又嵌套滚动了里面的ScrollView。

Andorid嵌套滑动机制

Github Code

4. TextInputLayout (from android design support library)

深入TextInputLayout

google API