React Native 0.60 - ic_launcher_round missing for Release Bundle/Build

问题

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.

I have the following icons:

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

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

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

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

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

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)

Edit: 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.

回答1:

Rename both ic_launcher.png and ic_launcher_round.png to something else like my_ic_launcher.png

Make the change in manifest:

<application
      android:name=".MainApplication"
      android:label="@string/app_name"
      android:icon="@mipmap/my_ic_launcher"
      android:roundIcon="@mipmap/my_ic_launcher_round"
>

Clean and build.

回答2:

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

- ic_launcher_foreground.xml
- ic_launcher_background.xml

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.

来源：https://stackoverflow.com/questions/57775250/react-native-0-60-ic-launcher-round-missing-for-release-bundle-build

标签

android

react-native

release