今天在集成那个二维码在build.gradle里面添加
implementation 'com.journeyapps:zxing-android-embedded:4.1.0'
implementation 'androidx.appcompat:appcompat:1.0.2'
在build的时候报错了（如下）
Error:F:\MyApplication\app\src\main\AndroidManifest.xml:22:18-91 Error:
Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91
is also present at [androidx.core:core:1.0.1] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
Suggestion: add 'tools:replace="android:appComponentFactory"' to <application> element at AndroidManifest.xml:66:5-149:19 to override.
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:processDebugManifest'.
> Manifest merger failed with multiple errors, see logs
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 47s
经过尝试 在清单文件（manifest）里面的application里面添加下面俩句话
其中
treplace="android:appComponentFactory"
android:appComponentFactory="任意字符串都行”
原因：这个配置是和依赖包的版本号有关,和Androidx有关,看博客上的说法是Androidx和Android support库不能共存的原因,具体的原因在报错中也有体现,gradle的版本升级到3.2.0之后估计都会遇到这样的问题,希望我遇到的问题能够帮助大家解决问题!（我的gradle版本是3.2.0）
