从 Facebook iOS 7 获取用户名和个人资料图片
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Getting username and profile picture from Facebook iOS 7
提问by Le'Kirdok
I have read a lot of tutorials about getting information from Facebook, but I have failed so far. I just want to get username and profile picture from Facebook.
我已经阅读了很多关于从 Facebook 获取信息的教程，但到目前为止我都失败了。我只想从 Facebook 获取用户名和个人资料图片。
- (IBAction)login:(id)sender {
[FBSession openActiveSessionWithReadPermissions:@[@"email",@"user_location",@"user_birthday",@"user_hometown"]
allowLoginUI:YES
completionHandler:^(FBSession *session, FBSessionState state, NSError *error) {
switch (state) {
case FBSessionStateOpen:
[[FBRequest requestForMe] startWithCompletionHandler:^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *user, NSError *error) {
if (error) {
NSLog(@"error:%@",error);
} else {
// retrive user's details at here as shown below
NSLog(@"FB user first name:%@",user.first_name);
NSLog(@"FB user last name:%@",user.last_name);
NSLog(@"FB user birthday:%@",user.birthday);
NSLog(@"FB user location:%@",user.location);
NSLog(@"FB user username:%@",user.username);
NSLog(@"FB user gender:%@",[user objectForKey:@"gender"]);
NSLog(@"email id:%@",[user objectForKey:@"email"]);
NSLog(@"location:%@", [NSString stringWithFormat:@"Location: %@\n\n",
user.location[@"name"]]);
}
}];
break;
case FBSessionStateClosed:
case FBSessionStateClosedLoginFailed:
[FBSession.activeSession closeAndClearTokenInformation];
break;
default:
break;
}
} ];
}
I used this code for get information, but I cannot get the any information. Can you help me about it? or Can you prefer a tutorial to read it? I have read tutorials on developer.facebook.com.
我使用此代码获取信息，但无法获取任何信息。你能帮我吗？或者你能更喜欢一个教程来阅读它吗？我已阅读 developer.facebook.com 上的教程。
Thank you for your interest.
感谢您的关注。
回答by Guilherme
This is the simplest way I've found to get the user's profile picture.
这是我找到的获取用户个人资料图片的最简单方法。
[[FBRequest requestForMe] startWithCompletionHandler:^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *FBuser, NSError *error) {
if (error) {
// Handle error
}
else {
NSString *userName = [FBuser name];
NSString *userImageURL = [NSString stringWithFormat:@"https://graph.facebook.com/%@/picture?type=large", [FBuser objectID]];
}
}];
Other query parameters that can be used are:
其他可以使用的查询参数有：
- type: small, normal, large, square
- width: < value >
- height: < value >
- Use both widthand heightto get a cropped, aspect fill image
- 类型：小、普通、大、方形
- 宽度：<值>
- 高度：<值>
- 使用宽度和高度来获得裁剪的纵横填充图像
回答by Hemanshu Liya
if ([FBSDKAccessToken currentAccessToken]) {
[[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{ @"fields" : @"id,name,picture.width(100).height(100)"}]startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
if (!error) {
NSString *nameOfLoginUser = [result valueForKey:@"name"];
NSString *imageStringOfLoginUser = [[[result valueForKey:@"picture"] valueForKey:@"data"] valueForKey:@"url"];
NSURL *url = [[NSURL alloc] initWithURL: imageStringOfLoginUser];
[self.imageView setImageWithURL:url placeholderImage: nil];
}
}];
}
回答by Victor
Make the following Graph request:
发出以下图形请求：
/me?fields=name,picture.width(720).height(720){url}
/me?fields=name,picture.width(720).height(720){url}
And you get really large and cool profile picture:
你会得到非常大和很酷的个人资料图片：
{
"id": "459237440909381",
"name": "Victor Mishin",
"picture": {
"data": {
"url": "https://fbcdn-profile-a.akamaihd.net/hprofile-ak-xpf1/t31.0-1/c628.148.1164.1164/s720x720/882111_142093815957080_669659725_o.jpg"
}
}
}
P.S. /me?fields=picture.type(large)doesn't do it for me.
PS/me?fields=picture.type(large)不适合我。
回答by akdsouza
You could also get the username and picture as follows:
您还可以按如下方式获取用户名和图片：
[FBSession openActiveSessionWithReadPermissions:@[@"basic_info"]
allowLoginUI:YES
completionHandler:
^(FBSession *session, FBSessionState state, NSError *error) {
if(!error && state == FBSessionStateOpen) {
{ [FBRequestConnection startWithGraphPath:@"me" parameters:[NSMutableDictionary dictionaryWithObjectsAndKeys:@"id,name,first_name,last_name,username,email,picture",@"fields",nil] HTTPMethod:@"GET" completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
NSDictionary *userData = (NSDictionary *)result;
NSLog(@"%@",[userData description]);
}];
}
}
}];
Output:
picture = {
data = {
"is_silhouette" = 0;
url = "https://fbcdn-profile-a.akamaihd.net/hprofile-ak-frc1/t5.0-1/xxxxxxxxx.jpg";
};
};
username = xxxxxxxxx;
You could just leave the parameter to picture & username and exclude the others based on you requirement. HTH.
您可以将参数保留为图片和用户名，并根据您的要求排除其他参数。哈。
回答by grandagile
This is the code for Facebook SDK 4 and Swift:
这是 Facebook SDK 4 和 Swift 的代码：
if FBSDKAccessToken.currentAccessToken() != nil {
FBSDKGraphRequest(graphPath: "me", parameters: nil).startWithCompletionHandler({ (connection, result, error) -> Void in
println("This logged in user: \(result)")
if error == nil{
if let dict = result as? Dictionary<String, AnyObject>{
println("This is dictionary of user infor getting from facebook:")
println(dict)
}
}
})
}
UPDATE TO ANSWER QUESTIONS:
更新回答问题：
To download public profile image, you get the facebook ID from the dictionary:
要下载公开的个人资料图片，您可以从字典中获取 facebook ID：
let facebookID:NSString = dict["id"] as AnyObject? as NSString
And then call a request to graph API for profile image using the facebook ID:
然后使用 facebook ID 调用对个人资料图像的图形 API 的请求：
let pictureURL = "https://graph.facebook.com/\(fbUserId)/picture?type=large&return_ssl_resources=1"
Sample code:
示例代码：
let pictureURL = "https://graph.facebook.com/\(fbUserId)/picture?type=large&return_ssl_resources=1"
//
var URLRequest = NSURL(string: pictureURL)
var URLRequestNeeded = NSURLRequest(URL: URLRequest!)
println(pictureURL)
NSURLConnection.sendAsynchronousRequest(URLRequestNeeded, queue: NSOperationQueue.mainQueue(), completionHandler: {(response: NSURLResponse!,data: NSData!, error: NSError!) -> Void in
if error == nil {
//data is the data of profile image you need. Just create UIImage from it
}
else {
println("Error: \(error)")
}
})
回答by Hashim Akhtar
Actually using "http://graph.facebook.com//picture?type=small" to fetch the profile image of the user or even their friends is slow.
实际上使用“ http://graph.facebook.com//picture?type=small”来获取用户甚至他们朋友的个人资料图片很慢。
A better and faster way of doing it to add a FBProfilePictureView object to your view and in it's profileID property, assign the user's Facebook id.
一种更好更快的方法是将 FBProfilePictureView 对象添加到您的视图中，并在它的 profileID 属性中分配用户的 Facebook id。
For example: FBProfilePictureView *friendsPic;
例如：FBProfilePictureView *friendsPic;
friendsPic.profileID = @"1379925668972042";
FriendsPic.profileID = @"1379925668972042";
回答by Jo?o Nunes
Check out this lib: https://github.com/jonasman/JNSocialDownload
查看这个库：https: //github.com/jonasman/JNSocialDownload
you can even get twitter
你甚至可以得到推特
