我从 Crashlytics 收到一份崩溃报告,该报告总是在同一个地方,但我无法复制崩溃。
这似乎只是 iOS 9 上的用户,而且只是非常偶尔。我不确定这是代码问题还是其他问题。最后一行提到 libdispatch.dylib
丢失,再次,不确定是否相关。
Crashlytics 表示崩溃发生在 MMDetailTableVC.m
第 1407 行,即 reloadData
行。
报告内容如下:
Crashed: com.apple.main-thread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000001
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x20f0fae2 objc_msgSend + 1
1 CoreFoundation 0x2168b91b -[NSDictionary descriptionWithLocale:indent:] + 310
2 Foundation 0x21e77e2d _NSDescriptionWithLocaleFunc + 60
3 CoreFoundation 0x217091a3 __CFStringAppendFormatCore + 7986
4 CoreFoundation 0x21707255 _CFStringCreateWithFormatAndArgumentsAux2 + 80
5 CoreFoundation 0x2171f559 _CFLogvEx2 + 96
6 CoreFoundation 0x2171f9af _CFLogvEx3 + 118
7 Foundation 0x21f3f4f7 _NSLogv + 126
8 Foundation 0x21e8679d NSLog + 28
9 UIKit 0x259b45fb -[UITableView reloadData] + 1818
10 Simple Meeting Minutes 0x91fff -[MMDetailTableVC saveItemEntry:] (MMDetailTableVC.m:1407)
11 Simple Meeting Minutes 0xa2edf -[MMItemViewController saveButtonAction:] (MMItemViewController.m:526)
12 UIKit 0x25905771 -[UIApplication sendAction:to:from:forEvent:] + 80
13 UIKit 0x25a86c71 -[UIBarButtonItem(UIInternal) _sendAction:withEvent:] + 140
14 UIKit 0x25905771 -[UIApplication sendAction:to:from:forEvent:] + 80
15 UIKit 0x25905701 -[UIControl sendAction:to:forEvent:] + 64
16 UIKit 0x258ed61f -[UIControl _sendActionsForEvents:withEvent:] + 446
17 UIKit 0x258ed74b -[UIControl _sendActionsForEvents:withEvent:] + 746
18 UIKit 0x25905051 -[UIControl touchesEnded:withEvent:] + 616
19 UIKit 0x25904cbf -[UIWindow _sendTouchesForEvent:] + 646
20 UIKit 0x258fd5d7 -[UIWindow sendEvent:] + 642
21 UIKit 0x258ce119 -[UIApplication sendEvent:] + 204
22 UIKit 0x258cc757 _UIApplicationHandleEventQueue + 5134
23 CoreFoundation 0x216f9257 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
24 CoreFoundation 0x216f8e47 __CFRunLoopDoSources0 + 454
25 CoreFoundation 0x216f71af __CFRunLoopRun + 806
26 CoreFoundation 0x21649bb9 CFRunLoopRunSpecific + 516
27 CoreFoundation 0x216499ad CFRunLoopRunInMode + 108
28 GraphicsServices 0x228c3af9 GSEventRunModal + 160
29 UIKit 0x25935fb5 UIApplicationMain + 144
30 Simple Meeting Minutes 0x8c59f main (main.m:16)
31 libdispatch.dylib 0x212fc873 (Missing)
这是我的 saveItemEntry
代码,它似乎总是发生崩溃的地方。
- (void)saveItemEntryMMitem *)item{
if (item)
{
NSString *resultStr = [self.meetingModel saveItem:item];
if ([resultStr isEqualToString"OK"])
{
// all good so close form and refresh data
[_itemViewController dismissViewControllerAnimated:NO completion:nil];
[self.tableView reloadData];
// or if there is an error result then display message
}
else if ([resultStr isEqualToString"DescriptionNotesMissing"])
{
[self showAlert"Missing Description or Notes" "An Item Description or Notes is required" :0];
[self.itemViewController.itemDescription becomeFirstResponder];
}
// for any other error do nothing
}
}
我们不知道你是否在主线程中调用了这个方法。
tableview 也需要时间来重新加载它的单元格。所以如果你能把这些代码添加到 dispatch_get_main_queue
dispatch_async(dispatch_get_main_queue(), ^(void){
[_itemViewController dismissViewControllerAnimated:NO completion:nil];
[self.tableView reloadData];
}
和
dispatch_async(dispatch_get_main_queue(), ^(void){
[self showAlert"Missing Description or Notes" "An Item Description or Notes is required" :0];
[self.itemViewController.itemDescription becomeFirstResponder];
}
如果我们正在使用 dispatch_async(dispatch_get_main_queue(), ^(void){
来刷新任何通知或委托(delegate)的 UI,这将是非常安全的
关于ios - 在 UITableview reloadData 上报告崩溃,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34849636/
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