如何在FirebaseRemoteConfig中使用FirebaseApp.initializeApp
如何在FirebaseRemoteConfig中使用FirebaseApp.initializeApp
提问于 2017-12-05 05:13:04
我正在尝试使用FirebaseApp.initializeApp，但它不起作用。我有正确的库，但无法使用JSON文件初始化应用程序
这是我的代码：
导入
import com.google.firebase.FirebaseApp;
import com.google.firebase.FirebaseOptions;
import com.google.firebase.remoteconfig.FirebaseRemoteConfig;
import com.google.firebase.remoteconfig.FirebaseRemoteConfigSettings;变量
private FirebaseRemoteConfig mFirebaseRemoteConfig;
private String projectID;
private String apiKey;
private String appID;如何初始化应用程序
public void Initialize() {
FirebaseOptions mFirebaseOptions = new FirebaseOptions.Builder()
.setApplicationId(this.appID)
.setApiKey(this.apiKey)
.build();
FirebaseApp.initializeApp(this.context, mFirebaseOptions, this.projectID);
mFirebaseRemoteConfig = FirebaseRemoteConfig.getInstance();
}应用程序在启动时崩溃，这是logcat错误：
12-04 22:11:42.217 12566 12566 E AndroidRuntime: FATAL EXCEPTION: main
12-04 22:11:42.217 12566 12566 E AndroidRuntime: Process: com.makeroid.sanderjochems.FirebaseRemoteConfig, PID: 12566
12-04 22:11:42.217 12566 12566 E AndroidRuntime: java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/common/internal/zzby;
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at com.google.firebase.FirebaseOptions.fromResource(Unknown Source)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at com.google.appinventor.components.runtime.FirebaseRemoteConfiguration.<init>(FirebaseRemoteConfiguration.java:67)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at java.lang.reflect.Constructor.newInstance0(Native Method)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at java.lang.reflect.Constructor.newInstance(Constructor.java:430)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at gnu.expr.PrimProcedure.apply(PrimProcedure.java:272)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at gnu.mapping.CallContext.runUntilDone(CallContext.java:234)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at gnu.mapping.CallContext.runUntilValue(CallContext.java:298)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at gnu.kawa.reflect.Invoke.applyN(Invoke.java:209)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at gnu.mapping.ProcedureN.apply2(ProcedureN.java:39)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at com.makeroid.sanderjochems.FirebaseRemoteConfig.Screen1.$define(Screen1.yail:10182)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at com.google.appinventor.components.runtime.Form.onCreateFinish(Form.java:389)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at com.google.appinventor.components.runtime.Form.onCreate(Form.java:336)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at android.app.Activity.performCreate(Activity.java:6942)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1126)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2880)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2988)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at android.app.ActivityThread.-wrap14(ActivityThread.java)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1631)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:102)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at android.os.Looper.loop(Looper.java:154)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:6682)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.common.internal.zzby" on path: DexPathList[[zip file "/data/app/com.makeroid.sanderjochems.FirebaseRemoteConfig-1/base.apk"],nativeLibraryDirectories=[/data/app/com.makeroid.sanderjochems.FirebaseRemoteConfig-1/lib/arm64, /system/lib64, /vendor/lib64]]
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
12-04 22:11:42.217 12566 12566 E AndroidRuntime: ... 25 more回答 3
Stack Overflow用户
发布于 2017-12-05 13:49:11
可能存在多个问题。我将指出似乎是其中之一。
RemoteConfig.getInstance()文档指出，它期望初始化默认的FirebaseApp：
FirebaseRemoteConfig使用默认FirebaseApp...
与其他一些Firebase API不同，无法使用不同的FirebaseApp初始化RemoteConfig。
这意味着在初始化FirebaseApp时，projectID必须是"DEFAULT"，它可以作为常量FirebaseApp.DEFAULT_APP_NAME使用。
FirebaseApp.initializeApp(this.context, mFirebaseOptions, this.projectID);尝试将projectID设置为"DEFAULT“(或available常量)，以查看故障是否发生变化或是否得到解决。
Stack Overflow用户
发布于 2017-12-05 05:30:07
在生成应用程序时禁用instant-run，并确保已将google-services.json文件添加到项目中。
Stack Overflow用户
发布于 2017-12-05 21:06:14
嘿，我在建议一些解决方案-
- Build.gradle文件
multiDexEnabled true
- 将其添加到您的proguard-rules.pro文件中
-keep public class com.google.android.gms.* { public *; }
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/47642053
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