Question

我一直在使用Firebase ML Kit在我的应用程序中做一些图像标记。一切正常，但是今天更新了gradle依赖关系后，我不能再使用诸如FirebaseVisionLabelDetectorOptions和FirebaseVisionCloudLabel之类的类。它们以红色突出显示，当我将鼠标悬停时，会看到以下消息：

未解决的参考：FirebaseVisionLabelDetectorOptions

这是我的代码：

class ImageActivity : AppCompatActivity() {

    // ... omited code for brevity

    private fun labelImages(image: FirebaseVisionImage) {

        val detector = FirebaseVision.getInstance()
                .visionLabelDetector

        val result = detector.detectInImage(image)
                .addOnSuccessListener { labels ->
                    for (label in labels) {
                        val text = label.label
                        val entityId = label.entityId
                        val confidence = label.confidence
                    }
                }
    }

    private fun labelImagesCloud(image: FirebaseVisionImage) {
        val options = FirebaseVisionCloudDetectorOptions.Builder()
                .setModelType(FirebaseVisionCloudDetectorOptions.LATEST_MODEL)
                .setMaxResults(30)
                .build()

        val detector = FirebaseVision.getInstance()
                .visionCloudLabelDetector

        val result = detector.detectInImage(image)
                .addOnSuccessListener(
                        object : OnSuccessListener<List<FirebaseVisionCloudLabel>> {
                            override fun onSuccess(labels: List<FirebaseVisionCloudLabel>) {
                                for (label in labels) {
                                    val text = label.label
                                    val entityId = label.entityId
                                    val confidence = label.confidence
                                }
                            }
                        })
    }
}

这是我对build.gradle文件的依赖：

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'androidx.coordinatorlayout:coordinatorlayout:1.0.0'
    implementation 'com.google.android.material:material:1.0.0'

    implementation 'com.google.firebase:firebase-core:16.0.6'

    implementation 'com.google.firebase:firebase-ml-vision:19.0.0'
    implementation 'com.google.firebase:firebase-ml-vision-image-label-model:17.0.2'

}

我想念什么吗？

Answer 1

Android Studio找不到这些类的原因是因为它们已在ML Kit SDK的19.0.0版本中重命名，正如您在更新后的Documentation上看到的那样。

以下是更改列表：

课程

FirebaseVisionLabelDetectorOptions-> FirebaseVisionOnDeviceImageLabelerOptions

FirebaseVisionCloudDetectorOptions-> FirebaseVisionCloudImageLabelerOptions

FirebaseVisionLabelDetector-> FirebaseVisionImageLabeler

FirebaseVisionCloudLabelDetector-> FirebaseVisionImageLabeler

FirebaseVisionLabel-> FirebaseVisionImageLabel

FirebaseVisionCloudLabel-> FirebaseVisionImageLabel

方法

getVisionCloudLabelDetector()-> getCloudImageLabeler()

getVisionLabelDetector()-> getOnDeviceImageLabeler()

getLabel()-> getText()

detectInImage()-> processImage()

所以基本上您的代码将变为：

class ImageActivity : AppCompatActivity() {

    // ... omited code for brevity

    private fun labelImages(image: FirebaseVisionImage) {
        val options = FirebaseVisionOnDeviceImageLabelerOptions.Builder()
                .setConfidenceThreshold(0.8f)
                .build()

        val detector = FirebaseVision.getInstance()
                .onDeviceImageLabeler

        val result = detector.processImage(image)
                .addOnSuccessListener { labels ->
                    for (label in labels) {
                        val text = label.text
                        val entityId = label.entityId
                        val confidence = label.confidence
                    }
                }
    }

    private fun labelImagesCloud(image: FirebaseVisionImage) {
        val options = FirebaseVisionCloudImageLabelerOptions.Builder()
                .setModelType(FirebaseVisionCloudImageLabelerOptions.LATEST_MODEL)
                .setMaxResults(30)
                .build()

        val detector = FirebaseVision.getInstance()
                .cloudImageLabeler

        val result = detector.processImage(image)
                .addOnSuccessListener(
                        object : OnSuccessListener<List<FirebaseVisionImageLabel>> {
                            override fun onSuccess(labels: List<FirebaseVisionImageLabel>) {
                                for (label in labels) {
                                    val text = label.text
                                    val entityId = label.entityId
                                    val confidence = label.confidence
                                }
                            }
                        })
    }
}

未解决的参考：FirebaseVisionLabelDetectorOptions，FirebaseVisionCloudLabel

1 个答案: