Android Studio 3.1.1新建项目弹窗异常及XML无Design选项求助

Hey there, let's work through these two Android Studio 3.1.1 issues step by step—they're typical post-update glitches, so we'll get you back on track in no time!

Here are the most effective fixes for this problem:

• Clear Android Studio's cache: Go to File → Invalidate Caches / Restart..., then select Invalidate and Restart. This clears out corrupted cache files that often cause weird behavior after updates.
• Reset project templates: If clearing cache doesn't help, delete the template directory manually:
  • On Windows: Navigate to C:\Users\<YourUsername>\.AndroidStudio3.1\config\templates and delete the folder
  • On Mac: Go to ~/Library/Application Support/AndroidStudio3.1/templates and remove it
    Restart Android Studio afterward—it will automatically re-download the default templates.
• Verify SDK configuration: Open File → Project Structure → SDK Location. Make sure the Android SDK path is correct and all required SDK versions are installed. If anything's missing, use the SDK Manager to download the necessary components.

Try these solutions one by one:

• Switch to Android view: Often, the issue is just the project view being set to "Project" instead of "Android". Look for the dropdown menu in the top-left corner of the Project window, select "Android", then re-open your layout XML file. The Design tab should appear.
• Check the XML file type: Ensure you're opening a layout XML file (located in the res/layout directory). XML files in other folders like res/values don't have a Design view—this is expected behavior.
• Enable the Android Designer plugin: Go to File → Settings → Plugins (on Mac, it's Android Studio → Preferences → Plugins). Look for "Android Designer" and make sure it's checked. If it was disabled, enable it and restart Studio.
• Downgrade Gradle to match Studio 3.1.1: Android Studio 3.1.1 works best with Gradle plugin 3.1.1 and Gradle version 4.4. If your project uses a newer version, it might cause compatibility issues:
  1. Open your project's root build.gradle file, update the classpath to classpath 'com.android.tools.build:gradle:3.1.1'
  2. Open gradle/wrapper/gradle-wrapper.properties, set distributionUrl to https\://services.gradle.org/distributions/gradle-4.4-all.zip
  3. Sync your project with Gradle files and check if the Design tab returns.

内容的提问来源于stack exchange，提问作者ni gi