android - 无法解析符号 'ActivityTestRule'

Question

我正在学习使用 espresso 来测试我的应用程序，但是 ActivityTestRule 总是无法解决。这是我的 app/build.gradle 配置，我确定我将测试类放在 src/androidTest 中。

非常感谢您的帮助!!

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    buildToolsVersion "25.0.2"
    defaultConfig {
        applicationId "com.example.android.teatime"
        minSdkVersion 16
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile 'com.android.support:design:27.1.1'
    compile 'com.android.support:support-annotations:27.1.1'
    compile 'com.google.android.gms:play-services-appindexing:9.8.0'
    // Testing-only dependencies
    androidTestCompile 'com.android.support:support-annotations:27.1.1'
    androidTestCompile 'com.android.support.test.espresso:espresso-core:3.0.2'
    androidTestCompile 'com.android.support.test:runner:1.0.2'
    androidTestCompile 'com.android.support.test.espresso:espresso-contrib:3.0.2'
    androidTestCompile 'com.android.support.test:rules:1.0.2'
}

Answer 1

我希望这对你有用。

使用

androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'

代替

androidTestCompile 'com.android.support.test.espresso:espresso-core:3.0.2'
androidTestCompile 'com.android.support.test:runner:1.0.2'