ios facebook登录在取消按钮上崩溃
<p><p>重现错误的步骤:</p>
<ol>
<li>用 Facebook 登录</li>
<li>输入凭据</li>
<li>点击取消按钮</li>
</ol>
<p>您的实现中的相关代码片段:
~~~</p>
<pre><code>NSLog(@"Your code goes here");
var manager = FBSDKLoginManager();
manager.loginBehavior = FBSDKLoginBehavior.Web
manager.logInWithReadPermissions(
["public_profile","email" ],
handler: {
(result: FBSDKLoginManagerLoginResult!, error: NSError!) -> Void in
if ((error) != nil)
{
// Process error
println("error\(error)")
}
else if result.isCancelled {
// Handle cancellations
println("isCancelled\(result.isCancelled)")
}
else {
// If you ask for multiple permissions at once, you
// should check if specific permissions missing
if result.grantedPermissions.contains("email")
{
self.returnUserData()
}
}
})
</code></pre>
<p>~~~</p>
<p>SDK 版本:v4.5.1</p>
<p>当我调试时，我遇到了错误</p>
<pre><code>+:
0x103ad7cb2 <+0>: pushq%rbp
0x103ad7cb3 <+1>: movq %rsp, %rbp
0x103ad7cb6 <+4>: pushq%r15
0x103ad7cb8 <+6>: pushq%r14
0x103ad7cba <+8>: pushq%r13
0x103ad7cbc <+10>:pushq%r12
0x103ad7cbe <+12>:pushq%rbx
0x103ad7cbf <+13>:pushq%rax
0x103ad7cc0 <+14>:movq %rdx, %rdi
0x103ad7cc3 <+17>:callq*0x207d57(%rip) ; (void *)0x0000000105e6e930: objc_retain
0x103ad7cc9 <+23>:movq %rax, %r14
0x103ad7ccc <+26>:movq 0x5375cd(%rip), %rdi ; _transientObjects
0x103ad7cd3 <+33>:movq 0x2f99ae(%rip), %rsi ; "objectForKey:"
0x103ad7cda <+40>:movq 0x207d2f(%rip), %r13 ; (void *)0x0000000105e71000: objc_msgSend
0x103ad7ce1 <+47>:movq %r14, %rdx
0x103ad7ce4 <+50>:callq*%r13
0x103ad7ce7 <+53>:movq %rax, %rdi
0x103ad7cea <+56>:callq0x103c2e7e0 ; symbol stub for: objc_retainAutoreleasedReturnValue
0x103ad7cef <+61>:movq %rax, %rbx
0x103ad7cf2 <+64>:movq 0x2f9a3f(%rip), %rsi ; "unsignedIntegerValue"
0x103ad7cf9 <+71>:movq %rbx, %rdi
0x103ad7cfc <+74>:callq*%r13
0x103ad7cff <+77>:movq %rax, %r15
0x103ad7d02 <+80>:movq %rbx, %rdi
0x103ad7d05 <+83>:callq*0x207d0d(%rip) ; (void *)0x0000000105e6e9b0: objc_release
0x103ad7d0b <+89>:testq%r15, %r15
0x103ad7d0e <+92>:je 0x103ad7d74 ; <+194> at FBSDKInternalUtility.m:456
0x103ad7d10 <+94>:cmpq $0x1, %r15
0x103ad7d14 <+98>:jne 0x103ad7d2f ; <+125> at FBSDKInternalUtility.m:454
0x103ad7d16 <+100>: movq 0x537583(%rip), %rdi ; _transientObjects
0x103ad7d1d <+107>: movq 0x2f9184(%rip), %rsi ; "removeObjectForKey:"
0x103ad7d24 <+114>: movq %r14, %rdx
0x103ad7d27 <+117>: callq*0x207ce3(%rip) ; (void *)0x0000000105e71000: objc_msgSend
0x103ad7d2d <+123>: jmp 0x103ad7d74 ; <+194> at FBSDKInternalUtility.m:456
0x103ad7d2f <+125>: movq 0x53756a(%rip), %r12 ; _transientObjects
0x103ad7d36 <+132>: movq 0x302fa3(%rip), %rdi ; (void *)0x0000000105d0cb88: NSNumber
0x103ad7d3d <+139>: decq %r15
0x103ad7d40 <+142>: movq 0x2f92d9(%rip), %rsi ; "numberWithUnsignedLong:"
0x103ad7d47 <+149>: movq %r15, %rdx
0x103ad7d4a <+152>: callq*%r13
0x103ad7d4d <+155>: movq %rax, %rdi
0x103ad7d50 <+158>: callq0x103c2e7e0 ; symbol stub for: objc_retainAutoreleasedReturnValue
0x103ad7d55 <+163>: movq %rax, %rbx
0x103ad7d58 <+166>: movq 0x2f99e1(%rip), %rsi ; "setObject:forKey:"
0x103ad7d5f <+173>: movq %r12, %rdi
0x103ad7d62 <+176>: movq %rbx, %rdx
0x103ad7d65 <+179>: movq %r14, %rcx
0x103ad7d68 <+182>: callq*%r13
0x103ad7d6b <+185>: movq %rbx, %rdi
0x103ad7d6e <+188>: callq*0x207ca4(%rip) ; (void *)0x0000000105e6e9b0: objc_release
0x103ad7d74 <+194>: movq %r14, %rdi
0x103ad7d77 <+197>: addq $0x8, %rsp
0x103ad7d7b <+201>: popq %rbx
0x103ad7d7c <+202>: popq %r12
0x103ad7d7e <+204>: popq %r13
0x103ad7d80 <+206>: popq %r14
0x103ad7d82 <+208>: popq %r15
0x103ad7d84 <+210>: popq %rbp
0x103ad7d85 <+211>: jmpq *0x207c8d(%rip) ; (void *)0x0000000105e6e9b0: objc_release
</code></pre></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>我今天也目睹了这次崩溃。在完全相同的位置，即 并在执行完全相同的步骤后(FB 登录 -> 输入凭据 -> 取消按钮 -> 崩溃)。</p>
<p>似乎不仅影响 iOS Facebook SDK v4.5.1，还影响 v4.6 和 v4.1.0。</p></p>
<p style="font-size: 20px;">关于ios facebook登录在取消按钮上崩溃，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/32565568/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/32565568/
</a>
</p>
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