React Native 0.60 - 发布包/构建缺少 ic_launcher_round [英] React Native 0.60 - ic_launcher_round missing for Release Bundle/Build

问题描述

我正在尝试生成一个 react-native 项目的 release 构建，并且遇到了 ic_launcher_round.png 的问题，而不是被包括在内；它只是显示默认的 android 一.

I'm trying to generate a release build of a react-native project, and am having issues with the ic_launcher_round.png not being included; it is simply showing the default android one.

我有以下图标:

android/app/src/main/res:

- mipmap-hdpi
  - ic_launcher.png
  - ic_launcher_round.png
- mipmap-mdpi
  - ic_launcher.png
  - ic_launcher_round.png
- mipmap-xhdpi
  - ic_launcher.png
  - ic_launcher_round.png
- mipmap-xxhdpi
  - ic_launcher.png
  - ic_launcher_round.png
- mipmap-xxxhdpi
  - ic_launcher.png
  - ic_launcher_round.png

此外，我在 AndroidManifest.xml 中指定了圆形图标:

Also, I have rounded icons specified in AndroidManifest.xml:

<application
  android:icon="@mipmap/ic_launcher"
  android:roundIcon="@mipmap/ic_launcher_round"
>
  ...
</application>

当我运行 react-native run-android 时，包含了 ic_launcher_round，我可以看到我的自定义图标显示在设备上.按照 react-native 中的步骤创建 release 构建:

When I run react-native run-android, the ic_launcher_round is included, and I can see my custom icon displayed on device. Following the steps from react-native for creating a release build:

cd android
./gradlew bundleRelease
cd .. && react-native run-android --variant=release

这成功地将 .apk 文件捆绑、构建并安装到我的手机上，但没有正确的图标；它显示默认的 android.

This successfully bundles, builds and installs the .apk file onto my phone, but without the correct icon; it displays the default android.

有人看到过这个问题吗?我似乎无法搜索处理这个新构建过程的解决方案(对于 react-native 0.60，使用 ./gradlew bundleRelease 而不是 react-native bundle 或 ./gradlew assembleRelease)

Has anyone seen this issue? I can't seem to google a solution that handles this new build process (for react-native 0.60, using ./gradlew bundleRelease instead of react-native bundle or ./gradlew assembleRelease)

代码和所有插件已从react-native 的旧版本迁移，并在debug 和release 构建上完美运行；这个问题特别是关于 release 构建中缺少图标的当前设置.请相应地限制评论.

Code and all plugins have been migrated from pervious version of react-native and function perfectly on debug and release builds; this question is specifically about lack of icon in release build with current settings. Please limit comments accordingly.

推荐答案

src/main 和 src/release 中的 res 文件夹包含两个文件:

The res folder in both src/main and src/release contained two files:

- ic_launcher_foreground.xml
- ic_launcher_background.xml

以及一个 drawable 文件夹，其中重复了相同的两个文件.只需删除这些文件(4 个位置共 8 个文件)并强制应用回退到各种 mipmap 文件夹中指定的 .png 文件，即可使图标正确显示在 debug 和 release 构建中.

As well as a drawable folder with the same two files repeated. Simply removing these files (total of 8 files across 4 locations) and forcing the app to fallback to the .png files specified in the various mipmap folders allows the icon to display correctly in both debug and release builds.

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