android - TextInputLayout 和 TextInputEditText 的区别

Question

需要知道 TextInputEditText 和 TextInputLayout 之间的实际区别，我们什么时候应该使用其中之一。

Answer 1

它们是相互补充功能的不同布局。

• TextInputLayout 扩展了 LinearLayout
• TextInputEditText 扩展了 EditText

它们应该像下面这样一起使用:

<TextInputLayout>
   <TextInputEditText/>
</TextInputLayout>

官方文档上都有:

TextInputLayout:

https://developer.android.com/reference/android/support/design/widget/TextInputLayout.html

Layout which wraps an EditText (or descendant) to show a floating label when the hint is hidden due to the user inputting text

TextInputEditText:

https://developer.android.com/reference/android/support/design/widget/TextInputEditText.html

A special sub-class of EditText designed for use as a child of TextInputLayout.