仅使用弹出对话框登录本机（iOS或Android）Facebook？

Question

I have iOS and Android apps built and working with the FB SDK, but I've only ever seen two Login Dialog styles: * Switch to the installed Facebook App for auth, and * Embedded WebView/Safari online auth.

Lots of other apps seem to achieve this using a simple, native popup dialog, and Facebook seem to indicate that this is still possible, as in the following image from https://developers.facebook.com/docs/facebook-login/manually-build-a-login-flow/v2.0

Anyone know how to force or indicate a preference for the popup? A 48 hour search of the Net has no turned anything up that seems even vaguely current.

Thanks in advance.

Image at: https://scontent-lhr.xx.fbcdn.net/hphotos-prn1/l/t39.2178-6/851582_133467196842050_800025839_n.png (not enough rep points to post inline!)

Answer 1

对于IOS如果您下载FB-IOS SDK，则示例应用程序“ HelloFacebookSample.xcodeproj使用FBLoginViewclass，可以将其配置为所需的类。类似的功能应可用于Android。

Answer 2

The minimal native popup dialogs are not supported in Login V2, which launched yesterday at f8 (there are a few exceptions). The SDKs will try to use the most optimal method of displaying the dialog, preferring to fast app switch to the Facebook app.