Firebase 远程配置，无法获得价值。安卓

Question

我创建了一些用于学习 Firebase 远程配置的测试项目。这是 firebase https://monosnap.com/file/0xgQCL7oo7lyOjBs8CG3kZO0szBXh6 中的设置。波纹管我的代码：

final FirebaseRemoteConfig config = FirebaseRemoteConfig.getInstance();
            FirebaseRemoteConfigSettings configSettings = new FirebaseRemoteConfigSettings.Builder()
                    .setDeveloperModeEnabled(BuildConfig.DEBUG)
                    .build();
            config.setConfigSettings(configSettings);

            String onlineVersion = FirebaseRemoteConfig.getInstance().getString("android_current_version");// empty string

我不知道为什么我不能从 firebase 获得价值

Answer 1

也许您需要先获取远程配置：

config.fetch(cacheExpiration)
    .addOnCompleteListener(this, new OnCompleteListener<Void>() {
        @Override
        public void onComplete(@NonNull Task<Void> task) {
            if (task.isSuccessful()) {
                Toast.makeText(MainActivity.this, "Fetch Succeeded",
                        Toast.LENGTH_SHORT).show();

                // After config data is successfully fetched, it must be activated before newly fetched
                // values are returned.
                mFirebaseRemoteConfig.activateFetched();

            } else {
                Toast.makeText(MainActivity.this, "Fetch Failed",
                        Toast.LENGTH_SHORT).show();
            }

            String onlineVersion = FirebaseRemoteConfig.getInstance().getString("android_current_version");// empty string
        }
    })

在“onComplete”方法中，您可以获得远程配置信息

检查这个：远程配置