如何处理低于 28 的 android API 中的缺口(显示切口)? [英] How to handle notch(display cutout) in android API lower than 28?

问题描述

Android 在 API 28 上添加了缺口支持，但如何在运行 API 27(荣耀 10、华为 P20 等)的设备上处理它?

Android added notch support on API 28, but how to handle it on devices running API 27 (Honor 10, Huawei P20, etc.) ?

我试图使用 DisplayCutoutCompat 但我无法创建它的实例，因为文档并没有真正指出如何创建一个实例.

I was trying to use DisplayCutoutCompat but I was not able to create an instance of it since documentation does not really point out how create one.

如何创建构造函数参数值:Rect safeInsets、ListboundingRects?

How to create the constructor parameter values: Rect safeInsets, List<Rect> boundingRects?

我也查了一下构造函数的源码，有点迷糊:

I also looked into the source code of the constructor, which is a bit confusing to me:

public DisplayCutoutCompat(Rect safeInsets, List<Rect> boundingRects) {
        this(SDK_INT >= 28 ? new DisplayCutout(safeInsets, boundingRects) : null);
    }

这将始终在运行 API 的设备上返回 null <28.提前致谢.

This will always return null on devices running API < 28. Thank you in advance.

推荐答案

Google 在 Android P 中提供了 Notch 相关的 API..

Google provided notch related APIs in Android P. Devices with notch and API version lower than P implemented their own notch APIs.You can consult the APIs from device specified documentation.

我也没有在官方文档中看到创建 DisplayCutoutCompat 实例，但您可以按如下方式创建 DisplayCutout:

Also I did not see creation of DisplayCutoutCompat instance in official documentation, but you can create DisplayCutout as follow:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
            DisplayCutout displayCutout = getWindow().getDecorView().getRootWindowInsets().getDisplayCutout();
}

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