Android应用无法导入com.google.mlkit.nl.smartreply.SmartReplyClient问题

在Android应用中集成Gemini AI时，可成功导入com.google.mlkit.nl.smartreply.SmartReplySuggestion和com.google.mlkit.nl.smartreply.TextMessage，但无法导入com.google.mlkit.nl.smartreply.SmartReplyClient。

应用级build.gradle文件 #

apply plugin: 'com.android.application'
apply plugin: 'com.google.firebase.crashlytics'
apply plugin: 'com.google.gms.google-services'

android {
    compileSdk 34
    defaultConfig {
        vectorDrawables.useSupportLibrary = true
        multiDexEnabled true
        applicationId "com.uomini.myaiassistantben"
        minSdk 24
        targetSdk 34
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    packagingOptions {
        resources {
            excludes += ['META-INF/DEPENDENCIES', 'META-INF/LICENSE', 'META-INF/LICENSE.txt', 'META-INF/license.txt', 'META-INF/NOTICE', 'META-INF/NOTICE.txt', 'META-INF/notice.txt', 'META-INF/ASL2.0', 'META-INF/*.kotlin_module']
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_16
        targetCompatibility JavaVersion.VERSION_16
    }
    namespace 'com.uomini.myaiassistantben'
}

dependencies {
    implementation platform('com.google.firebase:firebase-bom:33.1.2')
    implementation 'androidx.appcompat:appcompat:1.7.0'
    implementation 'com.google.android.material:material:1.12.0'
    implementation 'com.android.volley:volley:1.2.1'
    implementation 'com.squareup.picasso:picasso:2.71828'
    implementation 'com.google.firebase:firebase-analytics'
    implementation 'com.google.firebase:firebase-crashlytics'
    implementation 'com.google.firebase:firebase-database'
    implementation 'com.google.firebase:firebase-firestore'
    implementation 'com.google.firebase:firebase-auth'
    implementation 'com.firebaseui:firebase-ui-auth:4.3.2'
    implementation 'com.google.firebase:firebase-messaging'
    implementation 'com.google.firebase:firebase-config'
    implementation 'com.google.firebase:firebase-dynamic-links'
    implementation 'com.google.firebase:firebase-perf'
    implementation 'com.android.billingclient:billing:7.0.0'
    implementation 'androidx.vectordrawable:vectordrawable:1.2.0'
    implementation 'androidx.vectordrawable:vectordrawable-animated:1.2.0'
    implementation 'com.google.android.gms:play-services-auth:21.2.0'
    implementation 'com.google.android.gms:play-services-base:18.5.0'
    implementation "com.google.android.gms:play-services-location:21.3.0"
    implementation 'androidx.recyclerview:recyclerview:1.3.2'
    implementation 'androidx.paging:paging-runtime:3.3.0'
    implementation 'com.google.android.play:app-update:2.1.0'
    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
    implementation 'com.squareup.retrofit2:converter-gson:2.9.0' // If you are using Gson as your JSON converter
    implementation 'com.google.android.play:review:2.0.1'
    implementation 'androidx.browser:browser:1.8.0'
    implementation 'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava'
    implementation 'com.google.android.gms:play-services-speech:10.2.0'
    implementation 'com.google.android.gms:play-services-mlkit:17.0.0'
    implementation libs.common// Assuming this is the Gemini SDK

    def lifecycle_version = "2.8.3"
    implementation "androidx.lifecycle:lifecycle-viewmodel:$lifecycle_version"
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"

    // Google Calendar API
    implementation 'com.google.api-client:google-api-client-android:1.33.0'
    implementation 'com.google.apis:google-api-services-calendar:v3-rev20220715-1.32.1'
    implementation 'com.google.mlkit:smart-reply:17.0.3'

    // Gemini AI SDK (Note: This is a placeholder, as the actual SDK might not be publicly available yet)
    // implementation 'com.google.ai.gemini:gemini-sdk:1.0.0'

    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.2.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.6.1'

    //    implementation 'com.google.android.gms:play-services-mlkit-face-detection:17.1.0'
    implementation 'com.google.firebase:firebase-ml-common:24.0.0'
    //    implementation 'com.google.mlkit:text-to-speech:18.0.0'

    // CameraX for camera interaction
    implementation 'androidx.camera:camera-core:1.3.4'
    implementation 'androidx.camera:camera-camera2:1.3.4'
    implementation 'androidx.camera:camera-lifecycle:1.3.4'
    implementation 'androidx.camera:camera-view:1.3.4'
    implementation 'androidx.camera:camera-extensions:1.3.4'

    /**
    // Cloud vision libraries
    implementation 'com.google.cloud:google-cloud-vision:3.43.0'
    implementation 'com.google.cloud:google-cloud-texttospeech:2.46.0'
    implementation 'com.google.cloud:google-cloud-speech:2.6.1'

    // Required for one-shot operations (to use `ListenableFuture` from Guava Android)
    implementation 'com.google.guava:guava:32.1.2-android'

    // Required for streaming operations (to use `Publisher` from Reactive Streams)
    implementation 'org.reactivestreams:reactive-streams:1.0.4'
    implementation 'androidx.activity:activity:1.9.0'**/
}

项目级build.gradle文件 #

buildscript {
    repositories {
        google()
        jcenter()
        mavenCentral()
        maven {
            url 'https://ci.android.com/builds/submitted/6052626/androidx_snapshot/latest/repository/'
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:8.5.1'
        classpath 'com.google.gms:google-services:4.4.2'
        classpath 'com.google.firebase:firebase-crashlytics-gradle:3.0.2'
        //        classpath 'com.google.firebase:perf-plugin:1.4.2'  // Performance Monitoring plugin
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        mavenCentral()
        maven {
            url 'https://ci.android.com/builds/submitted/6052626/androidx_snapshot/latest/repository/'
        }
    }
}
task clean(type: Delete) {
    delete rootProject.buildDir
}

你使用的com.google.mlkit:smart-reply:17.0.3属于ML Kit Smart Reply的新版本，该版本已移除SmartReplyClient类，改用静态方法SmartReply.getClient()获取服务实例。具体调整步骤如下：

1. 替换导入语句
   删除原来的import com.google.mlkit.nl.smartreply.SmartReplyClient;，替换为：

   import com.google.mlkit.nl.smartreply.SmartReply;
   

2. 修改客户端获取逻辑
   原来创建SmartReplyClient的代码（比如SmartReplyClient client = SmartReplyClient.create(context);）需要改成：

   SmartReply smartReply = SmartReply.getClient();
   

3. 适配新的API调用
   获取回复建议的逻辑也需要调整为新的异步调用方式，示例代码：

   List<TextMessage> messages = new ArrayList<>();
   // 添加对话消息到messages列表
   smartReply.suggestReplies(messages)
           .addOnSuccessListener(suggestions -> {
               // 处理返回的SmartReplySuggestion列表
               for (SmartReplySuggestion suggestion : suggestions.getSuggestions()) {
                   String reply = suggestion.getText();
                   // 使用回复内容
               }
           })
           .addOnFailureListener(e -> {
               // 处理错误
           });
   

4. 确认依赖完整性
   你的com.google.mlkit:smart-reply:17.0.3依赖已经正确添加，无需调整版本，确保同步gradle后即可正常使用新API。

内容的提问来源于stack exchange，提问作者FractalBob