Question

在我的项目中，我尝试将多个图像上传到 Firebase 存储并将下载的图像 url 存储到 Firebase 数据库。这是我的代码

suspend fun uploadData(dataMap: HashMap<String, String>, imagePaths: Array<Uri?>){
        withContext(Dispatchers.IO){
            dataMap["selfie"] =getUrlForGallery(imagePaths[0])
            dataMap["adhaar pic"] = getUrlForCamera(imagePaths[1])
                dbReference.collection("Users Data").document(firebaseAuth.currentUser?.uid!!)  // Not working properly
                    .set(dataMap).addOnCompleteListener {
                        uploadResponse.postValue("success")
                    }
        }
}

private suspend fun getUrlForGallery(imagePaths : Uri?) =
    suspendCoroutine<String> {continuation ->
        val reference =
            storageReference.reference.child("images/${firebaseAuth.currentUser?.uid}/")
                .child("gallery")
        reference.putFile(imagePaths!!)
            .addOnSuccessListener {

                reference.downloadUrl.addOnSuccessListener {

                    continuation.resume(it.toString())
                }
            }
    }

private suspend fun getUrlForCamera(imagePaths : Uri?) =
    suspendCoroutine<String> {continuation ->
        val reference =
            storageReference.reference.child("images/${firebaseAuth.currentUser?.uid}/")
                .child("camera")
        reference.putFile(imagePaths!!)
            .addOnSuccessListener {

                reference.downloadUrl.addOnSuccessListener {

                continuation.resume(it.toString())
                }
            }
    }

编辑：我的项目级别gradle是：-

  buildscript {
   ext.kotlin_version = "1.4.21"
    repositories {
    google()
    jcenter()
 }
 dependencies {
    def nav_version = "2.3.1"
    def koin_version = "2.1.5"
    classpath 'com.google.firebase:firebase-crashlytics-gradle:2.4.1'
    classpath "androidx.navigation:navigation-safe-args-gradle- plugin:$nav_version"
    classpath 'com.android.tools.build:gradle:4.1.1'
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    classpath 'com.google.gms:google-services:4.3.4'
    classpath "org.koin:koin-gradle-plugin:$koin_version"
    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
}
}

allprojects {
  repositories {
     google()
     jcenter()
     maven { url "https://oss.jfrog.org/libs-snapshot" }
     maven {
        url "https://maven.google.com"
     }
  }
 }

task clean(type: Delete) {
 delete rootProject.buildDir
 }

我的应用级别 gradle 是：-

 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-kapt'
 apply plugin: 'com.google.gms.google-services'
 apply plugin: "androidx.navigation.safeargs"
 apply plugin: 'koin'
 apply plugin: 'com.google.firebase.crashlytics'

 android {
  compileSdkVersion 29
  buildToolsVersion "30.0.1"

   defaultConfig {
    applicationId "com.sarim.zomato"
    minSdkVersion 21
    targetSdkVersion 29
    versionCode 1
    versionName "1.0"
    vectorDrawables.useSupportLibrary = true
    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}

buildTypes {
    release {
        debuggable false
        minifyEnabled true
        shrinkResources true
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
    debug {
        debuggable true
        minifyEnabled true
        shrinkResources true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
compileOptions {
    sourceCompatibility = 1.8
    targetCompatibility = 1.8
}
kotlinOptions {
    jvmTarget = "1.8"
}
buildFeatures{
    dataBinding = true
    viewBinding = true
}
}

dependencies {
def nav_version = "2.3.2"
def koin_version = "2.1.5"
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation 'androidx.core:core-ktx:1.3.2'
implementation 'androidx.appcompat:appcompat:1.2.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'


//Kotlin Coroutines
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.0"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.4.0"


//ViewModel and LiveData
implementation "androidx.lifecycle:lifecycle-extensions:2.2.0"

//Material Design dependency
implementation 'com.google.android.material:material:1.3.0-beta01'

//Android Navigation Dependency
implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
implementation "androidx.navigation:navigation-ui-ktx:$nav_version"

//Koin
implementation "org.koin:koin-core:$koin_version"
implementation "org.koin:koin-androidx-scope:$koin_version"
implementation "org.koin:koin-androidx-viewmodel:$koin_version"

//firebase
implementation platform('com.google.firebase:firebase-bom:26.0.0')
implementation 'com.google.firebase:firebase-auth-ktx'
implementation 'com.google.firebase:firebase-storage'
implementation 'com.google.firebase:firebase-firestore-ktx'
implementation 'com.google.firebase:firebase-analytics:18.0.0'
implementation 'com.google.firebase:firebase-crashlytics:17.3.0'
implementation "androidx.browser:browser:1.3.0"

}

但是它不起作用。我也尝试使用 for 循环上传图像，但这也不正常。我该如何解决这个问题？请推荐我。

Answer 1

试试这个

private lateinit var uid: String
suspend fun uploadData(dataMap: HashMap<String, String>, imagePaths: Array<Uri?>) {
    uid = Firebase.auth.currentUser!!.uid
    withContext(Dispatchers.IO) {
        dataMap["selfie"] = getUrl(imagePaths[0]!!, true)
        dataMap["adhaar pic"] = getUrl(imagePaths[1]!!, false)
        Firebase.firestore.document("Users Data/$uid").set(dataMap).await()
    }
}
private suspend fun getUrl(path: Uri, forGallery: Boolean): String {
    val fileName = if (forGallery) "gallery" else "camera"
    val ref = Firebase.storage.getReference("images/$uid/$fileName")
    ref.putFile(path).await()
    return ref.downloadUrl.await().toString()
}

然后如果没有抛出异常则上传成功

val uploadResponse = try {
    uploadData(...)
    "success"
} catch (e: Exception) {
    "failure"
}

如何在 Firebase 中上传和存储多个图像？

1 个答案: