android - ionic +快车道 |安卓 "error: package android.support.v4.content does not exist"

Question

我有一个我正在使用的 Ionic 项目在构建 Android 时遇到了麻烦。我继承了这个项目，所以我不是 100% 熟悉 快车道 以及它是如何构建java文件的。此外，我在 WSL2 上并使用 sdkmanager 和以下已安装的软件包:

Installed packages:=====================] 100% Fetch remote repository...
Path                 | Version | Description                    | Location
-------              | ------- | -------                        | -------
build-tools;29.0.2   | 29.0.2  | Android SDK Build-Tools 29.0.2 | build-tools/29.0.2
emulator             | 30.8.4  | Android Emulator               | emulator
patcher;v4           | 1       | SDK Patch Applier v4           | patcher/v4
platform-tools       | 31.0.3  | Android SDK Platform-Tools     | platform-tools
platforms;android-29 | 5       | Android SDK Platform 29        | platforms/android-29

当我运行 bundle exec fastlane android build它做了很多魔术，但最终导致以下错误:

> Task :app:compileReleaseJavaWithJavac FAILED
/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/CameraLauncher.java:42: error: package android.support.v4.content does not exist
import android.support.v4.content.FileProvider;
                                ^
/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/FileProvider.java:21: error: package android.support.v4.content does not exist
public class FileProvider extends android.support.v4.content.FileProvider {}
                                                            ^
/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/CameraLauncher.java:297: error: cannot find symbol
        this.imageUri = FileProvider.getUriForFile(cordova.getActivity(),
                                    ^
symbol:   method getUriForFile(Activity,String,File)
location: class FileProvider
/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/CameraLauncher.java:824: error: cannot find symbol
                        Uri tmpFile = FileProvider.getUriForFile(cordova.getActivity(),
                                                ^
symbol:   method getUriForFile(Activity,String,File)
location: class FileProvider
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
4 errors

我看到了一些关于使用 androidx.core.content.FileProvider 的较新 SDK 版本的想法。而不是 android.support.v4.content.FileProvider .由于整个 Android 部分是自动构建/生成的，我显然无法更改 java 文件，因为它只会被覆盖。
这是 中的一行快速文件 这可能会有所帮助:

desc 'Compile a new build for Android'
lane :build do |options|
  Dir.chdir('..') do
    before_build(options)
    ionic_build
    sh("ionic cordova build android --device --release --aot false --environment prod --output-hashing all \
    --sourcemaps false --extract-css true --named-chunks false --build-optimizer true --minifyjs=true \
    --minifycss=true --optimizejs=true")
    deeplinks(action: 'uninstall')
  end
end

Answer 1

cordova-plugin-androidx-adapter将自动迁移旧库以使用 AndroidX 支持库。我相信当您针对 Android 10 或更高版本(即进行切换时)时需要这样做。一旦您的所有插件都支持 AndroidX，您就可以删除适配器插件。