blocks|key|229110|text|以下是Facebook应用程序使用的一些方案，在源码链接上还有一大堆：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|229111|示例|229112|NSURL+*url+=+[NSURL+URLWithString:@"fb://profile/<id>"];
[[UIApplication+sharedApplication]+openURL:url];|code-block|syntax|javascript|229113|方案|229114|Facebook+fb://配置文件-打开|229115|应用程序，打开用户的配置文件|blockquote|229116|229117|fb://friends+-打开Facebook应用程序进入好友列表|229118|fb://notifications+-在通知列表中打开Facebook应用程序(注意:此URL似乎存在错误。此时将打开通知页面。但是，在Facebook应用程序中无法导航到其他任何位置)|229119|fb://feed+-打开Facebook应用程序访问News+Feed|229120|fb://events+-打开Facebook应用程序到Events页面|229121|fb://requests+-打开Facebook应用程序到请求列表|229122|fb://notes+-打开Facebook应用程序到Notes页面|229123|fb://albums+-打开Facebook应用程序到相册列表|229124|229125|如果在打开此url之前，您想检查用户是否喜欢facebook应用程序，您可以执行以下操作(如下面的另一个答案所述)：|229126|if+([[UIApplication+sharedApplication]+canOpenURL:nsurl]){
++++[[UIApplication+sharedApplication]+openURL:nsurl];
}
else+{
++++//Open+the+url+as+usual
}|229127|来源|229128|http://wiki.akosma.com/IPhone_URL_Schemes#Facebook|offset|length|229129|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|1E|0|0^^$0|@$1|2|3|4|5|6|7|1M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|1P|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|M|3|N|5|O|7|1R|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1S|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1T|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1U|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1V|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1W|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1X|8|@]|9|@]|A|$]]|$1|10|3|11|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|12|3|13|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|20|8|@]|9|@]|A|$]]|$1|15|3|16|5|6|7|21|8|@]|9|@]|A|$]]|$1|17|3|18|5|F|7|22|8|@]|9|@]|A|$G|H]]|$1|19|3|1A|5|6|7|23|8|@]|9|@]|A|$]]|$1|1B|3|1C|5|6|7|24|8|@]|9|@$1D|25|1E|26|1|27]]|A|$]]|$1|1F|3|-4|5|6|7|28|8|@]|9|@]|A|$]]]|1G|$1H|$5|1I|1J|1K|A|$1L|1C]]]]

Here are some schemes the Facebook app uses, there are a ton more on the source link:
<h2>Example</h2>
<pre><code>NSURL *url = [NSURL URLWithString:@&quot;fb://profile/&lt;id&gt;&quot;];
[[UIApplication sharedApplication] openURL:url];
</code></pre>
<h2>Schemes</h2>
<blockquote>
fb://profile – Open Facebook app to the user’s profile
fb://friends – Open Facebook app to the friends list
fb://notifications – Open Facebook app to the notifications list (NOTE: there appears to be a bug with this URL. The Notifications page opens. However, it’s not possible to navigate to anywhere else in the Facebook app)
fb://feed – Open Facebook app to the News Feed
fb://events – Open Facebook app to the Events page
fb://requests – Open Facebook app to the Requests list
fb://notes – Open Facebook app to the Notes page
fb://albums – Open Facebook app to Photo Albums list
</blockquote>
If before opening this url you want to check wether the user fas the facebook app you can do the following (as explained in another answer below):
<pre><code>if ([[UIApplication sharedApplication] canOpenURL:nsurl]){
 [[UIApplication sharedApplication] openURL:nsurl];
}
else {
 //Open the url as usual
}
</code></pre>
<h2>Source</h2>
<a href="http://wiki.akosma.com/IPhone_URL_Schemes#Facebook" rel="noreferrer">http://wiki.akosma.com/IPhone_URL_Schemes#Facebook</a>

blocks|key|231548|text|这将在Safari中打开URL：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|231549|[[UIApplication+sharedApplication]+openURL:[NSURL+URLWithString:@"http://www.facebook.com/comments.php?href=http://wombeta.jiffysoftware.com/ViewWOMPrint.aspx?WPID=317"]];|code-block|syntax|javascript|231550|对于iphone，如果使用以fb://开头的url安装，则可以启动Facebook应用程序|231551|更多信息可以在这里找到：http://iphonedevtools.com/?p=302也可以在这里：http://wiki.akosma.com/IPhone_URL_Schemes#Facebook|offset|length|231552|盗取自上述网站：|231553|fb://profile+–+Open+Facebook+app+to+the+user’s+profile
fb://friends+–+Open+Facebook+app+to+the+friends+list
fb://notifications+–+Open+Facebook+app+to+the+notifications+list+(NOTE:+there+appears+to+be+a+bug+with+this+URL.+The+Notifications+page+opens.+However,+it’s+not+possible+to+navigate+to+anywhere+else+in+the+Facebook+app)
fb://feed+–+Open+Facebook+app+to+the+News+Feed
fb://events+–+Open+Facebook+app+to+the+Events+page
fb://requests+–+Open+Facebook+app+to+the+Requests+list
fb://notes+-+Open+Facebook+app+to+the+Notes+page
fb://albums+–+Open+Facebook+app+to+Photo+Albums+list|231554|要启动上述URL：|231555|NSURL+*theURL+=+[NSURL+URLWithString:@"fb://<insert+function+here>"];
[[UIApplication+sharedApplication]+openURL:theURL];|231556|entityMap|0|LINK|mutability|MUTABLE|url|http://iphonedevtools.com/?p=302|1|http://wiki.akosma.com/IPhone_URL_Schemes#Facebook^0|0|0|0|C|W|0|1F|1E|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|16|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|17|8|@]|9|@$K|18|L|19|1|1A]|$K|1B|L|1C|1|1D]]|A|$]]|$1|M|3|N|5|6|7|1E|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|1F|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|1G|8|@]|9|@]|A|$]]|$1|S|3|T|5|D|7|1H|8|@]|9|@]|A|$E|F]]|$1|U|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]|12|$5|X|Y|Z|A|$10|13]]]]

This will open the URL in Safari:

<pre><code>[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://www.facebook.com/comments.php?href=http://wombeta.jiffysoftware.com/ViewWOMPrint.aspx?WPID=317"]];
</code></pre>

For the iphone, you can launch the Facebook app if installed by using a url starting with fb://

More information can be found here: <a href="http://iphonedevtools.com/?p=302" rel="nofollow">http://iphonedevtools.com/?p=302</a> also here: <a href="http://wiki.akosma.com/IPhone_URL_Schemes#Facebook" rel="nofollow">http://wiki.akosma.com/IPhone_URL_Schemes#Facebook</a>

Stolen from the above site:

<pre><code>fb://profile – Open Facebook app to the user’s profile
fb://friends – Open Facebook app to the friends list
fb://notifications – Open Facebook app to the notifications list (NOTE: there appears to be a bug with this URL. The Notifications page opens. However, it’s not possible to navigate to anywhere else in the Facebook app)
fb://feed – Open Facebook app to the News Feed
fb://events – Open Facebook app to the Events page
fb://requests – Open Facebook app to the Requests list
fb://notes - Open Facebook app to the Notes page
fb://albums – Open Facebook app to Photo Albums list
</code></pre>

To launch the above URLs:

<pre><code>NSURL *theURL = [NSURL URLWithString:@"fb://&lt;insert function here&gt;"];
[[UIApplication sharedApplication] openURL:theURL];
</code></pre>

blocks|key|2886406|text|要添加yonix的评论作为答案，旧的fb://page/…网址不再有效。显然，它已经被fb://profile/…取代了，尽管一个页面不是个人资料。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2886407|entityMap^0|I|B|17|E|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

To add yonix’s comment as an answer, the old <code>fb://page/…</code> URL no longer works. Apparently it was replaced by <code>fb://profile/…</code>, even though a page is not a profile.

blocks|key|3100452|text|我在MonoTouch中用下面的方法做到了这一点，我确信一个纯基于Obj-C的方法不会有太大的不同。我在一个有时会改变URL的类中使用它，这就是为什么我没有把它放在if/elseif+if语句中的原因。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3100453|NSString+*myUrls+=+@"fb://profile/100000369031300%7Chttp://www.facebook.com/ytn3rd";
NSArray+*urls+=+[myUrls+componentsSeparatedByString:@"%7C"];
for+(NSString+*url+in+urls){
++++NSURL+*nsurl+=+[NSURL+URLWithString:url];
++++if+([[UIApplication+sharedApplication]+canOpenURL:nsurl]){
++++++++[[UIApplication+sharedApplication]+openURL:nsurl];
++++++++break;
++++}
}|code-block|syntax|javascript|3100454|在你的应用程序切换到Safari/Facebook之前，break并不总是被调用。我假设您的程序将在此停止，并在您返回时调用它。|3100455|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I did this in MonoTouch in the following method, I'm sure a pure Obj-C based approach wouldn't be too different. I used this inside a class which had changing URLs at times which is why I just didn't put it in a if/elseif statement.

<pre><code>NSString *myUrls = @"fb://profile/100000369031300|http://www.facebook.com/ytn3rd";
NSArray *urls = [myUrls componentsSeparatedByString:@"|"];
for (NSString *url in urls){
 NSURL *nsurl = [NSURL URLWithString:url];
 if ([[UIApplication sharedApplication] canOpenURL:nsurl]){
 [[UIApplication sharedApplication] openURL:nsurl];
 break;
 }
}
</code></pre>

The break is not always called before your app changes to Safari/Facebook. I assume your program will halt there and call it when you come back to it.

blocks|key|231582|text|只需使用https://graph.facebook.com/(your_username获取您的页面ID，然后您可以看到所有扣留和您的ID|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|231583|在使用IOS应用程序后：|231584|+NSURL+*url+=+[NSURL+URLWithString:@"fb://profile/[your+ID]"];
+[[UIApplication+sharedApplication]+openURL:url];|code-block|syntax|javascript|231585|entityMap|0|LINK|mutability|MUTABLE|url|https://graph.facebook.com/(your_username)%2520or%2520page%2520name^0|4|15|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Just use <a href="https://graph.facebook.com/(your_username" rel="noreferrer">https://graph.facebook.com/(your_username</a> or page name) to get your page ID and after you can see all the detain and your ID

after in your IOS app use : 

<pre><code> NSURL *url = [NSURL URLWithString:@"fb://profile/[your ID]"];
 [[UIApplication sharedApplication] openURL:url];
</code></pre>

blocks|key|226452|text|我知道这个问题很老，但为了支持上面的回答，我想分享我的工作代码。只需将这两个方法添加到class.The代码中检查facebook应用程序是否已安装，如果未安装，url将在browser.And中打开如果在尝试查找profileId时出现任何错误，页面将在浏览器中打开。只需将url(例如，http://www.facebook.com/AlibabaUS)传递给openUrl：，它就会完成所有的魔术。希望它能帮助某些人！|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|226453|226454|注:+UrlUtils是为我编写代码的类，您可能必须将其更改为其他类以满足您的需求。|blockquote|226455|226456|226457|%2B(void)+openUrlInBrowser:(NSString+*)+url
{
++++if+(url.length+>+0)+{
++++++++NSURL+*linkUrl+=+[NSURL+URLWithString:url];
++++++++[[UIApplication+sharedApplication]+openURL:linkUrl];
++++}
}
%2B(void)+openUrl:(NSString+*)+urlString
{

++++//check+if+facebook+app+exists
++++if+([[UIApplication+sharedApplication]+canOpenURL:[NSURL+URLWithString:@"fb://"]])+{

++++++++//+Facebook+app+installed
++++++++NSArray+*tokens+=+[urlString+componentsSeparatedByString:@"/"];
++++++++NSString+*profileName+=+[tokens+lastObject];

++++++++//call+graph+api
++++++++NSURL+*apiUrl+=+[NSURL+URLWithString:[NSString+stringWithFormat:@"https://graph.facebook.com/%25@",profileName]];
++++++++NSData+*apiResponse+=+[NSData+dataWithContentsOfURL:apiUrl];

++++++++NSError+*error+=+nil;
++++++++NSDictionary+*jsonDict+=+[NSJSONSerialization+JSONObjectWithData:apiResponse+options:NSJSONReadingMutableContainers+error:&error];

++++++++//check+for+parse+error
++++++++if+(error+==+nil)+{

++++++++++++NSString+*profileId+=+[jsonDict+objectForKey:@"id"];

++++++++++++if+(profileId.length+>+0)+{//make+sure+id+key+is+actually+available
++++++++++++++++NSURL+*fbUrl+=+[NSURL+URLWithString:[NSString+stringWithFormat:@"fb://profile/%25@",profileId]];
++++++++++++++++[[UIApplication+sharedApplication]+openURL:fbUrl];
++++++++++++}
++++++++++++else{
++++++++++++++++[UrlUtils+openUrlInBrowser:urlString];
++++++++++++}

++++++++}
++++++++else{//parse+error+occured
++++++++++++[UrlUtils+openUrlInBrowser:urlString];
++++++++}

++++}
++++else{//facebook+app+not+installed
++++++++[UrlUtils+openUrlInBrowser:urlString];
++++}

}|code-block|syntax|javascript|226458|entityMap|0|LINK|mutability|MUTABLE|url|http://www.facebook.com/AlibabaUS^0|41|X|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|-4|5|6|7|10|8|@]|9|@]|C|$]]|$1|E|3|F|5|G|7|11|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|12|8|@]|9|@]|C|$]]|$1|I|3|-4|5|6|7|13|8|@]|9|@]|C|$]]|$1|J|3|K|5|L|7|14|8|@]|9|@]|C|$M|N]]|$1|O|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

I know the question is old, but in support of the above answers i wanted to share my working code.
Just add these two methods to whatever class.The code checks if facebook app is installed, if not installed the url is opened in a browser.And if any errors occur when trying to find the profileId, the page will be opened in a browser. Just pass the url(example, <a href="http://www.facebook.com/AlibabaUS" rel="noreferrer">http://www.facebook.com/AlibabaUS</a>) to openUrl: and it will do all the magic. Hope it helps someone!.

<blockquote>
 NOTE: UrlUtils was the class that had the code for me, you might have to change it to something else to suite your needs.
</blockquote>

<pre><code>+(void) openUrlInBrowser:(NSString *) url
{
 if (url.length &gt; 0) {
 NSURL *linkUrl = [NSURL URLWithString:url];
 [[UIApplication sharedApplication] openURL:linkUrl];
 }
}
+(void) openUrl:(NSString *) urlString
{

 //check if facebook app exists
 if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"fb://"]]) {

 // Facebook app installed
 NSArray *tokens = [urlString componentsSeparatedByString:@"/"];
 NSString *profileName = [tokens lastObject];

 //call graph api
 NSURL *apiUrl = [NSURL URLWithString:[NSString stringWithFormat:@"https://graph.facebook.com/%@",profileName]];
 NSData *apiResponse = [NSData dataWithContentsOfURL:apiUrl];

 NSError *error = nil;
 NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:apiResponse options:NSJSONReadingMutableContainers error:&amp;error];

 //check for parse error
 if (error == nil) {

 NSString *profileId = [jsonDict objectForKey:@"id"];

 if (profileId.length &gt; 0) {//make sure id key is actually available
 NSURL *fbUrl = [NSURL URLWithString:[NSString stringWithFormat:@"fb://profile/%@",profileId]];
 [[UIApplication sharedApplication] openURL:fbUrl];
 }
 else{
 [UrlUtils openUrlInBrowser:urlString];
 }

 }
 else{//parse error occured
 [UrlUtils openUrlInBrowser:urlString];
 }

 }
 else{//facebook app not installed
 [UrlUtils openUrlInBrowser:urlString];
 }

}
</code></pre>

blocks|key|231658|text|如果Facebook应用程序已登录，则在执行以下代码时将打开该页面。如果Facebook应用程序在执行代码时未登录，则用户将被重定向至Facebook应用程序进行登录，然后在连接后Facebook不会被重定向至页面！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|231659|NSURL+*fbNativeAppURL+=+[NSURL+URLWithString:@"fb://page/yourPageIDHere"]+[[UIApplication+sharedApplication]+openURL:fbNativeAppURL]|code-block|syntax|javascript|231660|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If the Facebook application is logged in, the page will be opened when executing the following code. If the Facebook application is not logged in when executing the code, the user will then be redirected to the Facebook app to login and then after connecting the Facebook is not redirected to the page!

<pre><code>NSURL *fbNativeAppURL = [NSURL URLWithString:@"fb://page/yourPageIDHere"] [[UIApplication sharedApplication] openURL:fbNativeAppURL]
</code></pre>

blocks|key|229275|text|swift+3|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|229276|if+let+url+=+URL(string:+"fb://profile/<id>")+{
++++++++if+#available(iOS+10,+*)+{
++++++++++++UIApplication.shared.open(url,+options:+[:],completionHandler:+{+(success)+in
++++++++++++++++print("Open+fb://profile/<id>:+\(success)")
++++++++++++})
++++++++}+else+{
++++++++++++let+success+=+UIApplication.shared.openURL(url)
++++++++++++print("Open+fb://profile/<id>:+\(success)")
++++++++}
+}|code-block|syntax|javascript|229277|entityMap^0|0|7|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

swift 3

<pre><code>if let url = URL(string: "fb://profile/&lt;id&gt;") {
 if #available(iOS 10, *) {
 UIApplication.shared.open(url, options: [:],completionHandler: { (success) in
 print("Open fb://profile/&lt;id&gt;: \(success)")
 })
 } else {
 let success = UIApplication.shared.openURL(url)
 print("Open fb://profile/&lt;id&gt;: \(success)")
 }
 }
</code></pre>

blocks|key|231680|text|我今天刚刚验证了这一点，但如果你试图打开一个Facebook的页面，你可以使用"fb://page/{Page+ID}“|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|231681|页面ID可以在页面底部附近的about部分找到。|231682|具体到我的用例，在Xamarin.Forms中，如果可用，您可以使用此代码片段在应用程序中打开，否则在浏览器中打开。|231683|Device.OpenUri(new+Uri("fb://page/{id}"));|CODE|231684|entityMap^0|V|2|0|0|0|0|16|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|R|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|S|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|T|8|@$9|U|A|V|B|L]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|N|$]]

Just verified this today, but if you are trying to open a Facebook page, you can use "fb://page/{Page ID}"

Page ID can be found under your page in the about section near the bottom.

Specific to my use case, in Xamarin.Forms, you can use this snippet to open in the app if available, otherwise in the browser.

<code>Device.OpenUri(new Uri("fb://page/{id}"));</code>

blocks|key|2886676|text|2020年答案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2886677|打开网址就行了。Facebook会自动注册深度链接。|2886678|let+url+=+URL(string:"https://www.facebook.com/TheGoodLordAbove")!
UIApplication.shared.open(url,completionHandler:nil)|code-block|syntax|javascript|2886679|这将在facebook应用程序中打开(如果已安装)，否则将在默认浏览器中打开|2886680|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

2020 answer
Just open the url. Facebook automatically registers for deep links.
<pre><code>let url = URL(string:&quot;https://www.facebook.com/TheGoodLordAbove&quot;)!
UIApplication.shared.open(url,completionHandler:nil)
</code></pre>
this opens in the facebook app if installed, and in your default browser otherwise

blocks|key|3100741|text|以前的方法fb://profile/[ID]不起作用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3100742|试试fb://profile?id=[ID]|3100743|用法示例：|3100744|//+Open+Profile+or+page
//+To+open+in+Application
if+UIApplication.shared.canOpenURL(URL(string:+"fb://profile?id=vikramchaudhary.ios")!)+{
++++UIApplication.shared.open(URL(string:+"fb://profile?id=vikramchaudhary.ios")!,+options:+[:],+completionHandler:+nil)
}+else+{
++++//+To+open+in+safari
++++UIApplication.shared.open(URL(string:+"https://facebook.com/vikramchaudhary.ios/")!,+options:+[:],+completionHandler:+nil)
}|code-block|syntax|javascript|3100745|entityMap^0|5|H|0|2|K|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|W|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|X|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

Previous method <code>fb://profile/[ID]</code> is not working.
try <code>fb://profile?id=[ID]</code>
Example of usage:
<pre><code>// Open Profile or page
// To open in Application
if UIApplication.shared.canOpenURL(URL(string: &quot;fb://profile?id=vikramchaudhary.ios&quot;)!) {
 UIApplication.shared.open(URL(string: &quot;fb://profile?id=vikramchaudhary.ios&quot;)!, options: [:], completionHandler: nil)
} else {
 // To open in safari
 UIApplication.shared.open(URL(string: &quot;https://facebook.com/vikramchaudhary.ios/&quot;)!, options: [:], completionHandler: nil)
}
</code></pre>

If the native Facebook app is installed on the iPhone. How do I open a facebook link into the native Facebook app from my app. In the case of opening by Safari, the link is same as:

<blockquote>
 <a href="http://www.facebook.com/AlibabaUS" rel="noreferrer">http://www.facebook.com/AlibabaUS</a>
</blockquote>

Thank you.

Open a facebook link by native Facebook app on iOS

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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