Android和Facebook：如何获取登录用户的图片 [英] Android and Facebook: How to get picture of logged in User

问题描述

我在Android应用程序中使用官方的Facebook SDK。用户登录后，我可以得到用户的用户名，如下所示：

  Facebook mFacebook = new Facebook （APP_ID）; 
 // ...用户登录... 
 // String jsonUser = mFacebook.request（me / picture）; // throws error 
 String jsonUser = mFacebook.request（me）; 
 JSONObject obj = Util.parseJson（jsonUser）; 
 String facebookId = obj.optString（id）; 
 String name = obj.optString（name）; 
  

我也知道我可以使用这些链接访问个人资料图片：

  https://graph.facebook.com/<facebookId>/picture 
 https://graph.facebook.com/< facebookId> / picture？type = large 
  

我想用这个代码来填充个人资料图片：

  public static Drawable getPictureForFacebookId（String facebookId）{
 
 Drawable picture = null; 
 InputStream inputStream = null; 
 
 try {
 inputStream = new URL（https://graph.facebook.com/+ facebookId +/ picture）。openStream（）; 
} catch（Exception e）{
 e.printStackTrace（）; 
返回null; 
 
} 
 picture = Drawable.createFromStream（inputStream，facebook-pictures）; 
 
返回图片; 
} 
  

但它只是不工作。我总是收到以下错误：

  SSL握手失败：SSL库失败，通常是协议错误
  

我无法解决这个问题。似乎相当复杂（请此处或这里）。那么还有什么其他选择可以获得成功登录到我的应用程序的Facebook用户的图片？

解决方案

请求（我 /图片）会抛出一个错误，因为服务器返回一个302（重定向到图像url），并且facebook sdk不处理这个。

I use the official Facebook SDK in my Android Application. After the user logs in, I can get the uid and the name of the facebook user like so:

Facebook mFacebook = new Facebook(APP_ID);
// ... user logs in ...
//String jsonUser = mFacebook.request("me/picture"); // throws error
String jsonUser = mFacebook.request("me");
JSONObject obj = Util.parseJson(jsonUser);
String facebookId = obj.optString("id");
String name = obj.optString("name");

I also know that the I can access the profile picture with those links:

https://graph.facebook.com/<facebookId>/picture 
https://graph.facebook.com/<facebookId>/picture?type=large

I would love to use this code to geht the profile picture:

public static Drawable getPictureForFacebookId(String facebookId) {

    Drawable picture = null;
    InputStream inputStream = null;

    try {
        inputStream = new URL("https://graph.facebook.com/" + facebookId + "/picture").openStream();
    } catch (Exception e) {        
     e.printStackTrace();
     return null;

    }
    picture = Drawable.createFromStream(inputStream, "facebook-pictures");

    return picture;
}

But it just wont work. I always get the following error:

SSL handshake failure: Failure in SSL library, usually a protocol error

And I cant solve this issue. It seems to be rather complicated(look here or here). So what other options are there to get the picture of a facebook user that successfully logged into my application?

解决方案

request("me/picture") throws an error because the server returns a 302 (redirect to the image url) and the facebook sdk does not handle this.

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