[DataBindingUtil在添加安全参数依赖项后不起作用

Question

我正在添加safe-args依赖项：

项目级别：

dependencies {
    classpath 'com.android.tools.build:gradle:3.3.0'
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$version_kotlin"
    classpath "android.arch.navigation:navigation-safe-args-gradle-plugin:$version_navigation"

应用级别：

apply plugin: 'androidx.navigation.safeargs'

例如，当我同步项目时，我的数据绑定停止工作：

val binding: FragmentGameOverBinding = DataBindingUtil.inflate(
        inflater, R.layout.fragment_game_over, container, false)
binding.tryAgainButton.setOnClickListener {view: View ->
    view.findNavController().navigate(R.id.action_gameOverFragment2_to_gameFragment2)
}
return binding.root

binding.root显示未解决的引用，当我转到DataBindingUtil.java时，出现错误：

Library source does not match the bytecode for class DataBindingUtil

我正在遵循Google的udacity课程中的确切步骤，但是似乎添加safe-args依赖关系与数据绑定库发生了某种冲突。我该如何解决？

Answer 1

转到您的[[gradle.properties文件，检查是否在其中或添加它：

android.enableJetifier=true
android.useAndroidX=true

然后转到您的
build.gradle

（应用程序），并将其添加到android {]下

dataBinding {
    enabled = true
}
compileOptions {
    sourceCompatibility = JavaVersion.VERSION_1_8
    targetCompatibility = JavaVersion.VERSION_1_8
}
kotlinOptions {
    jvmTarget = JavaVersion.VERSION_1_8
}

大胆课程没有更新，这是我使用的依赖版本

注意此部分：

而不是用作Udacity建议

// Navigation
implementation "android.arch.navigation:navigation-fragment-ktx:$version_navigation"
implementation "android.arch.navigation:navigation-ui-ktx:$version_navigation"

使用

// Navigation

implementation "androidx.navigation:navigation-fragment-ktx:$version_navigation"
implementation "androidx.navigation:navigation-ui-ktx:$version_navigation"

这里是使用的版本的依赖关系的完整列表（以防万一）

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'androidx.navigation.safeargs'

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.21"

    // Support libraries
    implementation "androidx.constraintlayout:constraintlayout:1.1.3"

    // Android KTX
    implementation "androidx.core:core-ktx:"1.2.0"

    // Room and Lifecycle dependencies
    implementation "androidx.room:room-runtime:$version_room"
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
    kapt "androidx.room:room-compiler:"2.0.0"
    implementation "androidx.lifecycle:lifecycle-extensions:2.2.0"

    // Coroutines
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:"1.1.0"
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:"1.1.0"

    // Navigation
    implementation "androidx.navigation:navigation-fragment-ktx:2.3.0-alpha04"
    implementation "androidx.navigation:navigation-ui-ktx:2.3.0-alpha04"

    // Testing
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
}