默认 FirebaseApp 未在此进程 com.example.example 中初始化。确保首先调用 FirebaseApp.initializeApp(Context)

Question

我的问题是，当我想按下按钮时，它应该显示来自 firebase 的图像。但每次应用程序崩溃时出现此错误“默认 FirebaseApp 未在此进程 com.example.example 中初始化。请务必先调用 FirebaseApp.initializeApp(Context)。”

她是我的主要活动

package com.nktschmitt.trailercheck

import android.app.Application
import android.content.Context
import android.graphics.BitmapFactory
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.ImageView
import android.widget.Toast
import com.google.firebase.FirebaseApp
import com.google.firebase.ktx.Firebase
import com.google.firebase.storage.FirebaseStorage
import java.io.File
import com.google.firebase.FirebaseApp.initializeApp as initializeApp1

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)


        val button: Button = findViewById(R.id.button)


        button.setOnClickListener {

            val image: ImageView = findViewById(R.id.rImage)
            val storageRef = FirebaseStorage.getInstance().reference.child("image/a.jpg")

            val localfile = File.createTempFile("tempImage", "jpg")
            storageRef.getFile(localfile).addOnSuccessListener {

                val bitmap = BitmapFactory.decodeFile(localfile.absolutePath)
                image.setImageBitmap(bitmap)

            }.addOnFailureListener {


                Toast.makeText(this, "Failed", Toast.LENGTH_SHORT).show()
            }


        }

    }
}

她是我的项目 Gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    ext.kotlin_version = "1.5.21"
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.2.1"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.gms:google-services:4.3.9'
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

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

她是我的App Gradle

plugins {
    id 'com.android.application'
    id 'kotlin-android'
    id 'com.google.gms.google-services'
}

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.3"

    defaultConfig {
        applicationId "com.nktschmitt.trailercheck"
        minSdkVersion 18
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = '1.8'
    }
}

dependencies {

    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'androidx.core:core-ktx:1.6.0'
    implementation 'androidx.appcompat:appcompat:1.3.1'
    implementation 'com.google.android.material:material:1.4.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
    implementation 'com.google.firebase:firebase-storage-ktx:20.0.0'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}

Answer 1

Google 服务插件 v4.3.9 有这个错误。 A newer plugin version 可用于修复。请在您的项目级 build.gradle 文件中手动将 classpath 'com.google.gms:google-services:4.3.9' 升级为 classpath 'com.google.gms:google-services:4.3.10'。

Answer 2

我认为仍然存在错误 4.3.8、4.3.9、4.3.10。

建议降级 4.3.7