AndroidX 迁移后应用程序崩溃（数据绑定错误）

Question

我正在尝试将一个已有 3 年历史的项目迁移到 AndroidX。该项目有3个模块。

• 应用程序
• 软件开发工具包
• 蜜蜂

app是主要模块。该项目在运行时构建sdk和apis模块的AAR 文件。并且该应用程序使用sdk和apis

我为迁移所做的更改是：

1. 更新了 app.gradle 和 gradlewrapper 属性的目标版本
2. 迁移到 AndroidX
3. 更新了所有模块的所有依赖项。

当应用程序启动时，它会从应用程序模块启动一个工作正常的活动。紧接着它从sdk模块启动一个活动。但是这里应用程序在 DataBindingUtil.setContentView 处崩溃。所有 3 个模块都启用了数据绑定。下面是堆栈跟踪。

java.lang.NoClassDefFoundError: Failed resolution of: Lcom/android/databinding/library/baseAdapters/DataBinderMapperImpl;
    at com.xyz.sdk.DataBinderMapperImpl.collectDependencies(DataBinderMapperImpl.java:274)
    at androidx.databinding.MergedDataBinderMapper.addMapper(MergedDataBinderMapper.java:58)
    at androidx.databinding.MergedDataBinderMapper.addMapper(MergedDataBinderMapper.java:60)
    at androidx.databinding.DataBinderMapperImpl.<init>(DataBinderMapperImpl.java:5)
    at androidx.databinding.DataBindingUtil.<clinit>(DataBindingUtil.java:32)
    at androidx.databinding.DataBindingUtil.setContentView(DataBindingUtil.java:284)
    at com.xyz.sdk.landing.LandingPageActivity.onCreate(LandingPageActivity.java:51)
    at android.app.Activity.performCreate(Activity.java:7136)
    at android.app.Activity.performCreate(Activity.java:7127)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:193)
    at android.app.ActivityThread.main(ActivityThread.java:6669)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
 Caused by: java.lang.ClassNotFoundException: Didn't find class "com.android.databinding.library.baseAdapters.DataBinderMapperImpl" on path: DexPathList[[zip file "/data/app/com.example.admin.myapplication-fYwVmwZfRLEOIXuh0dvhUg==/base.apk"],nativeLibraryDirectories=[/data/app/com.example.admin.myapplication-fYwVmwZfRLEOIXuh0dvhUg==/lib/x86, /system/lib]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
    at com.xyz.sdk.DataBinderMapperImpl.collectDependencies(DataBinderMapperImpl.java:274) 
    at androidx.databinding.MergedDataBinderMapper.addMapper(MergedDataBinderMapper.java:58) 
    at androidx.databinding.MergedDataBinderMapper.addMapper(MergedDataBinderMapper.java:60) 
    at androidx.databinding.DataBinderMapperImpl.<init>(DataBinderMapperImpl.java:5) 
    at androidx.databinding.DataBindingUtil.<clinit>(DataBindingUtil.java:32) 
    at androidx.databinding.DataBindingUtil.setContentView(DataBindingUtil.java:284) 
    at com.xyz.sdk.landing.LandingPageActivity.onCreate(LandingPageActivity.java:51) 
    at android.app.Activity.performCreate(Activity.java:7136) 
    at android.app.Activity.performCreate(Activity.java:7127) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) 
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) 
    at android.os.Handler.dispatchMessage(Handler.java:106) 
    at android.os.Looper.loop(Looper.java:193) 
    at android.app.ActivityThread.main(ActivityThread.java:6669) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) 

Answer 1

我有同样的错误。如果您在多模块项目中工作，则需要为依赖于使用它的库databinding的app模块启用。

所以，我的解决方法是将它添加到直接使用的模块databinding和我的app模块中。

buildFeatures {
    dataBinding true
}