Android Studio预览窗口隐藏求助：更新后仍无法显示

Hey there, I’ve run into this exact preview window issue before—total pain when you can’t visualize your layout without running the app. Let’s go through some tried-and-tested fixes that should get it back up and running:

• Double-check the editor view toggle
  When you’re editing your XML layout file, look at the top-right corner of the editor panel. You should see three options: Code, Split, and Design. If you’re stuck on Code only, click Split or Design to bring the preview back. Sometimes it’s just accidentally toggled off without you noticing.

• Invalidate caches and restart Android Studio
  Corrupted cache files are a common culprit here. Head to File > Invalidate Caches..., then select Invalidate and Restart. Let Studio fully reboot—this clears out wonky temporary files that might be blocking the preview.

• Verify layout compatibility with API 22
  Since you’re targeting API 22, make sure your layout isn’t using components or attributes that were introduced in newer APIs. For example:

  • Replace modern Material components with AppCompat alternatives (e.g., use androidx.appcompat.widget.AppCompatTextView instead of a plain TextView if you’re using Material themes)
  • Avoid layout attributes like android:foregroundTint which weren’t available until API 23
  • Also, check the preview toolbar (if it becomes visible) to ensure you’ve selected an API 22 device for previewing

• Check your Gradle configuration
  Open your app-level build.gradle file and confirm:

  • compileSdkVersion and targetSdkVersion are set to at least 22
  • You have the AppCompat dependency included (e.g., implementation 'androidx.appcompat:appcompat:1.6.1'—this version works well with API 22)
    After making any changes, sync your Gradle project and try the preview again.

• Reset the Layout Designer state
  If none of the above works, manually clear the layout editor’s cached state:

  • On Windows: Navigate to C:\Users\<YourUsername>\.AndroidStudio<Version>\system\layout-designer and delete the folder
  • On Mac: Go to ~/Library/Application Support/Google/AndroidStudio<Version>/layout-designer and delete the folder
    Restart Android Studio afterward—this forces the layout editor to rebuild its configuration from scratch.

内容的提问来源于stack exchange，提问作者Arboker