Android TextView文字切换动画报错：无法解析ChangeText符号求助

Hey there, the error you're facing has two straightforward fixes — let's break them down:

1. Add the required AndroidX Transition dependency #

The ChangeText class isn't part of the core AndroidX toolkit by default. You need to explicitly include the transition library in your project. Open your module-level build.gradle file (typically located at app/build.gradle) and add this dependency:

implementation "androidx.transition:transition:1.4.1"

Feel free to replace the version number with the latest stable release available (Android Studio's dependency updater can help you find the newest version).

2. Import the ChangeText class explicitly #

You've already imported TransitionManager, but missed the ChangeText class itself. Add this line to your import statements:

import androidx.transition.ChangeText;

After making these changes, sync your project with Gradle. The "Cannot resolve symbol" error should vanish. As a quick check, ensure your transitionsContainer is a valid ViewGroup (like LinearLayout or FrameLayout) since TransitionManager.beginDelayedTransition() requires this as its first parameter.

内容的提问来源于stack exchange，提问作者Amit Jaiswal