安卓工作室 :An alert box showed when I try to add RecyclerView

Question

警告文本是:

This operation requires the library androidx.recyclerview:recyclerview:+.

Problem: Inconsistencies in the existing project dependencies found. Version incompatibility between: - androidx.appcompat:appcompat:1.1.0@aar and: - androidx.appcompat:appcompat:1.1.0@aar

With the dependency: - androidx.annotation::1.1.0 versus: - androidx.annotation::2.0.0

The project may not compile after adding this library. Would you like to add it anyway

在我选择了OK并添加了RecyclerView后，我仍然无法使用它，因为当我选择添加的RecyclerView时，它在Attributes中显示No component selected。

Answer 1

将此添加到您的 app.gradle

implementation 'androidx.recyclerview:recyclerview:1.1.0'
implementation 'com.android.support:recyclerview-v7:29.0.0'

或者您可以使用添加 Google Material Design Lib

implementation 'com.google.android.material:material:1.0.0'

所以你可以使用所有的 Material 组件，比如 CardView, SnackBar, etc
希望这会有所帮助!