可以通过使用 SharedPreferences 来保存是否已读取过 agconnect-services.json 文件的状态,以便简单的处理。
例如,在应用程序中定义以下常量:
private static final String PREFS_NAME = "agconnectservicesconfig";
private static final String KEY_HAS_READ_AGCONNECT_SERVICES = "has_read_agconnect_services";
然后,在读取 AGConnectServicesConfig 对象之前,检查是否已经读取过 agconnect-services.json 文件:
SharedPreferences prefs = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
boolean hasReadAgconnectServices = prefs.getBoolean(KEY_HAS_READ_AGCONNECT_SERVICES, false);
if (!hasReadAgconnectServices) {
// Read agconnect-services.json and initialize AGConnectServicesConfig
...
// Save the status indicating that agconnect-services.json has been read
SharedPreferences.Editor editor = prefs.edit();
editor.putBoolean(KEY_HAS_READ_AGCONNECT_SERVICES, true);
editor.apply();
}
这样,在应用程序的后续启动中,将不会重新读取 agconnect-services.json 文件。