MFMailComposeViewController崩溃

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if ([MFMailComposeViewController canSendMail]) {

    MFMailComposeViewController *mailViewController = [[MFMailComposeViewController alloc] init];
    mailViewController.mailComposeDelegate = self;
    [mailViewController setSubject:@\"Support Enquiry\"];
    [mailViewController setToRecipients:[NSArray arrayWithObject:EMAIL_SUPPORT]];

    [self presentModalViewController:mailViewController animated:YES];
    [mailViewController release];
}
我的代码在 
MFMailComposeViewController *mailViewController = [[MFMailComposeViewController alloc] init];
符合： 
*** Terminating app due to uncaught exception \'CALayerInvalidGeometry\', 
reason: \'CALayer position contains NaN: [nan 24.5]\'
*** Call stack at first throw:
(
0   CoreFoundation                      0x011f75a9 __exceptionPreprocess + 185
1   libobjc.A.dylib                     0x0134b313 objc_exception_throw + 44
2   CoreFoundation                      0x011afef8 +[NSException raise:format:arguments:] + 136
3   CoreFoundation                      0x011afe6a +[NSException raise:format:] + 58
4   QuartzCore                          0x00145ba2 _ZL18CALayerSetPositionP7CALayerRKN2CA4Vec2IdEEb + 177
5   QuartzCore                          0x00145d55 -[CALayer setPosition:] + 42
6   QuartzCore                          0x0013e24d -[CALayer setFrame:] + 763
7   UIKit                               0x0047eda2 -[UIView(Geometry) setFrame:] + 255
8   UIKit                               0x004ea660 -[UITextField setFrame:] + 166
9   MessageUI                           0x001faa48 -[_MFComposeRecipientView reflow] + 3371
10  MessageUI                           0x001f9678 -[_MFComposeRecipientView setLabel:] + 79
11  MessageUI                           0x001ff144 -[MFMailComposeView _setupField:withLabel:navTitle:property:changingView:toSize:fieldFrame:visible:] + 234
12  MessageUI                           0x00203277 -[MFMailComposeView _layoutSubviews:changingView:toSize:searchResultsWereDismissed:] + 1768
13  MessageUI                           0x001fea6f -[MFMailComposeView _layoutSubviews:changingView:toSize:] + 71
14  MessageUI                           0x001fea22 -[MFMailComposeView _layoutSubviews:] + 69
15  MessageUI                           0x00200859 -[MFMailComposeView initWithFrame:navigationItem:options:delegate:] + 2175
16  MessageUI                           0x00215ea6 -[MFMailComposeController initializeUI] + 228
17  MessageUI                           0x0021cfb9 -[MFMailComposeController initForContentSize:navigationItem:options:] + 147
18  MessageUI                           0x00236267 -[MFMailComposeRootViewController initWithCompositionContext:contentSize:mailComposeControllerOptions:] + 377
19  MessageUI                           0x0022fbe7 -[MFMailComposeViewController initWithComposition:contentSize:mailComposeControllerOptions:] + 726
20  MessageUI                           0x0022f634 -[MFMailComposeViewController initWithComposition:] + 68
21  MessageUI                           0x0022f71e -[MFMailComposeViewController initWithNibName:bundle:] + 98
... 知道发生了什么吗？ 编辑：到目前为止所有答案都没有做任何事情，它仍然崩溃:( 编辑2：我终于弄清楚了问题-我已经在文本字段中添加了一个类别，而MFMailComposeViewController根本不喜欢该类别。     
2020-02-01 10 条评论
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没有找到相关结果

    已邀请:

    屑凉赦

            正如问问者在他的问题上的报道一样，“ 3”使用了一些本不应分类的本机元素。因此，您必须确保元素
    UITextField
    或ѭ5are中没有任何类别。     
    2020-02-01 0 0
    分享

    扇献隙

            看来我对iOS
    MFMailComposeViewController
    类的
    To:
    字段有疑问。 可能是，您正在发送\“ To Recipient \”字符串数组，其中没有有效的
    NSString
    对象，iOS内部在internal6 try字段中尝试使用try9ѭ计算字符串的高度。 只是建议您通过替换以下语句来测试上述假设。 
    [mailViewController setToRecipients:[NSArray arrayWithObject:EMAIL_SUPPORT]];
    用 
    [mailViewController setToRecipients:[NSArray arrayWithObject:@\"myCompanySupport@abc.com\"]];
    让我知道它是否再次因相同的消息而崩溃。 编辑： UITableView崩溃给出了“ CALayerInvalidGeometry”，原因：“ CALayer位置包含NaN：[160 nan]”     
    2020-02-01 0 0
    分享

    届甸衬丝蚕

            只需尝试使用 [mailViewController setToRecipients：[NSArray arrayWithObjects：EMAIL_SUPPORT，nil]]; 请参考以下链接： http://www.edumobile.org/iphone/iphone-programming-tutorials/mailsend-in-the-iphone/     
    2020-02-01 0 0
    分享

    靛新比比催

            这是我将调试设置为max的结果： bool _WebTryThreadLock（bool），0x4be8910：尝试从主线程或Web线程以外的线程获取Web锁。这可能是从辅助线程调用UIKit的结果。现在崩溃了... 堆栈跟踪略有不同： 
    #2  0x32b69f40 in -[MFComposeBodyField initWithFrame:]
#3  0x32b69afe in -[MFMailComposeView _setupBodyFieldWithHeaderFrame:enclosingFrame:changingView:frameToPin:wasSearching:]
#4  0x32b66c12 in -[MFMailComposeView _layoutSubviews:changingView:toSize:searchResultsWereDismissed:]
#5  0x32b6651e in -[MFMailComposeView _layoutSubviews:changingView:toSize:]
#6  0x001cafe2 in -[MFMailComposeViewAccessibility(SafeCategory) _layoutSubviews:changingView:toSize:]
#7  0x32b664ee in -[MFMailComposeView _layoutSubviews:]
#8  0x32b66202 in -[MFMailComposeView initWithFrame:navigationItem:options:delegate:]
#9  0x32b65876 in -[MFMailComposeController initializeUI]
#10 0x32b656c0 in -[MFMailComposeController initForContentSize:navigationItem:options:]
#11 0x32b6558c in -[MFMailComposeRootViewController initWithCompositionContext:contentSize:mailComposeControllerOptions:]
#12 0x32b64dc2 in -[MFMailComposeViewController initWithComposition:contentSize:mailComposeControllerOptions:]
#13 0x32b64bfe in -[MFMailComposeViewController initWithComposition:]
#14 0x32b8cfb2 in -[MFMailComposeViewController initWithNibName:bundle:]
#15 0x33169a12 in -[UIViewController init]
        
    2020-02-01 0 0
    分享

    死搭胯

            您不得从主线程以外的任何线程访问UI。曾经 所以这对我来说确实有帮助： 
    dispatch_async(dispatch_get_main_queue(), ^{
    /* Do somthing here with UIKit here */  

MFMailComposeViewController *picker = [[[MFMailComposeViewController alloc] initWithRootViewController:view] autorelease];
picker.mailComposeDelegate = self;  
NSArray *toRecipients = [NSArray arrayWithObject: subject ];    
[picker setToRecipients:to];    
[view presentModalViewController:picker animated:YES];
});
        
    2020-02-01 0 0
    分享

    队辅坟阮阶

            如果没有帮助，您可以随时打开mailto网址： 
    body= [(NSString*)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (CFStringRef)body, NULL, CFSTR(\"?=&+\"), kCFStringEncodingUTF8) autorelease];
String uri= [@\"mailto:\" adds:to];
uri=[[uri adds:@\"?subject=\"] adds:subject];
uri=[[uri adds:@\"&body=\"] adds:body];
        
    2020-02-01 0 0
    分享

    鲁釜头

             MFMailComposeViewController是UINavigationController的子类，因此请确保此处的“ self”具有UINavigationController。 确保已导入MessegeUI framewok。 检查是否已在该类的.h文件中确认使用UINavigationController协议。 请让我知道是否可以解决问题。 谢谢！ 伊尚克     
    2020-02-01 0 0
    分享

    辰炔诚薯

            如果将以下类别添加到文本字段，则MFMailComposeViewController根本不喜欢这种方式。所以避免这种情况。 我不知道为什么。我正在写我观察到的东西。 
     - (CGRect)textRectForBounds:(CGRect)bounds {

          return CGRectInset( bounds , 10 , 0 );
    }
    但是您可以添加以下类别以自定义文本字段： 
          - (CGRect)borderRectForBounds:(CGRect)bounds;
      - (CGRect)placeholderRectForBounds:(CGRect)bounds;
      - (CGRect)editingRectForBounds:(CGRect)bounds;
      - (CGRect)clearButtonRectForBounds:(CGRect)bounds;
      - (CGRect)leftViewRectForBounds:(CGRect)bounds;
      - (CGRect)rightViewRectForBounds:(CGRect)bounds;
    我认为这会对您有所帮助。     
    2020-02-01 0 0
    分享

    款去芳尾脊

            在具有ARC的iOS5 / 6上呈现视图控制器时，我遇到了相同的问题。 我的解决方案是保留使用ivar呈现MFMailComposeViewController的对象。 
    @interface MyClass (){
     MailUtils *_mailUtils;
}
@end


{...
_mailUtils = [[MailUtils alloc] init];
[_mailUtils publish]; //in this method I create the MFMailComposeViewController
}
        
    2020-02-01 0 0
    分享
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