火库远程配置 - 安卓

Question

我目前正在Android上尝试Firebase Remote Config。我给一个参数一个值：2.2，但是当我运行一个应用程序时，它会在Logcat中无缘无故地打印2.0。

这是我的代码：

初始化：

private FirebaseRemoteConfig mRemoteConfig = FirebaseRemoteConfig.getInstance();

设置默认值：

mRemoteConfig.setDefaults(hashMap);

取：

mRemoteConfig.setConfigSettings(new FirebaseRemoteConfigSettings.Builder().setDeveloperModeEnabled(true).build());

从远程配置中获取双倍：

double code = mRemoteConfig.getDouble("code");

我做错了什么？

Answer 1

您需要设置时间范围，以告知 Firebase 何时获取该参数。尝试下面的代码，下面的示例是每60秒获取一次更新：&nbsp;final FirebaseRemoteConfig firebaseRemoteConfig = FirebaseRemoteConfig.getInstance();&nbsp;// set in-app defaults&nbsp;Map<String, Object> remoteConfigDefaults = new HashMap();&nbsp;remoteConfigDefaults.put("CURRENT_VERSION", "2.0");&nbsp; //...any other defaults here&nbsp;firebaseRemoteConfig.setDefaults(remoteConfigDefaults);&nbsp;firebaseRemoteConfig.fetch(60) // set the value in second to fetch every minutes&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; .addOnCompleteListener(new OnCompleteListener<Void>() {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; @Override&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; public void onComplete(@NonNull Task<Void> task) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (task.isSuccessful()) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Log.d(TAG, "remote config is fetched.");&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; });

Answer 2

您需要：调用以从 Firebase 获取值fetch()和调用&nbsp;activateFetched（）&nbsp;以在应用中适当和方便的时候激活上次提取的值。只有在完成这两个步骤后，您才会在调用 时收到在 Firebase 控制台中设置的最新值。getDouble("code")Github 上 Firebase 的快速入门应用中的示例用法