Jetpack Compose 截取可组合功能的屏幕截图? [英] Jetpack Compose take screenshot of composable function?

问题描述

我想在 Jetpack Compose 上截取特定可组合功能的屏幕截图.我怎样才能做到这一点?请任何人帮助我.我想截取可组合函数的截图并与其他应用程序共享.

I want to take screenshot of specific composable function on Jetpack Compose. How can I do this? Please, anyone help me. I want to take screenshot of composable function and share with other applications.

我的函数示例:

@Composable
fun PhotoCard() {
    Stack() {
        Image(imageResource(id = R.drawable.background))
        Text(text = "Example")
    }
}

这个功能怎么截图?

推荐答案

您可以创建一个测试，将内容设置为可组合的，然后调用 composeTestRule.captureToImage().它返回一个 ImageBitmap.

You can create a test, set the content to that composable and then call composeTestRule.captureToImage(). It returns an ImageBitmap.

截图比较器的使用示例:https://github.com/android/compose-samples/blob/e6994123804b976083fa937d3f5bf926da4facc5/Rally/app/src/androidTest/java/com/Screenshot/compose/Comparator/.kt

Example of usage in a screenshot comparator: https://github.com/android/compose-samples/blob/e6994123804b976083fa937d3f5bf926da4facc5/Rally/app/src/androidTest/java/com/example/compose/rally/ScreenshotComparator.kt

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