安卓预览中的空白屏幕 [英] Blank screen in android preview

问题描述

所以我的android studio有问题。我的预览只是一个没有内容的空白屏幕，我实际上已经添加了。当我在avd上运行它时，我可以看到这个按钮和文本视图，不幸的是预览屏幕仍然是空白的。我没有任何额外的库，我重新安装android工作室几次，只是创建了十个新项目 - 每个案例都结束相同。

So I have a problem with android studio. Mine "preview" is just a blank screen without content,that i actually added. When i run it on avd,i can see this button,and text view,unfortunetly the preview screen is still blank. I don't have any extra libraries,i reinstaled android studio couple of times and just created like ten new project - every case is ending same.

实际上看起来如何 - https://imgur.com/a/OX3JNLk

How it's look actually - https://imgur.com/a/OX3JNLk

推荐答案

更新build.gradle文件，以便compileSdkVersion和targetSdkVersion匹配您运行模拟器的版本。

Update the build.gradle file so the "compileSdkVersion" and "targetSdkVersion" matches the version you are running your emulator.

例如

compileSdkVersion 26
buildToolsVersion '26.0.2'
targetSdkVersion 26
compile "com.android.support:support-v4:26.0.2"
compile "com.android.support:design:26.0.2

还可以尝试这里提到的一些选项而不是预览，Android Studio只显示黑屏机智h'android ... ActionBarOverlayLayout'写在上面。
喜欢Goto：src - > main - > res - > style.xml并添加Base。样式标记父属性。

Also try some of the options mentioned here instead of preview, Android Studio showing only black screen with 'android...ActionBarOverlayLayout' written on it. Like Goto: src -> main -> res -> style.xml and add Base. to the style tag parent attribute.

<style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">
...
</style>

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