UIResponder(静态) _setFirstResponder:断开

Question

我不知道什么休息，你能为我提供一些线索，任何帮助将不胜感激。

• 线程#1: tid = 0x29927，0x37c47b66 libobjc.A.dylib`objc_msgSend + 6，queue =‘com.apple.main-线程，停止原因= EXC_BAD_ACCESS (code=1，address=0x8000000c)

框架#0: 0x37c47b66 libobjc.A.dylib`objc_msgSend +6

frame #1: 0x3012cce0 UIKit`-[UIResponder(Static) _setFirstResponder:] + 44
frame #2: 0x3012cce0 UIKit`-[UIResponder(Static) _setFirstResponder:] + 44
frame #3: 0x3012cce0 UIKit`-[UIResponder(Static) _setFirstResponder:] + 44
frame #4: 0x30118732 UIKit`-[UIResponder resignFirstResponder] + 250
frame #5: 0x3027bb68 UIKit`-[UIWebDocumentView resignFirstResponder] + 232
frame #6: 0x3027ba7c UIKit`-[UIWebBrowserView resignFirstResponder] + 124
frame #7: 0x30072504 UIKit`-[UIView(Hierarchy) _willMoveToWindow:] + 660
frame #8: 0x30072d74 UIKit`__85-[UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:]_block_invoke + 76
frame #9: 0x30072ca2 UIKit`-[UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:] + 378
frame #10: 0x30072d94 UIKit`__85-[UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:]_block_invoke + 108
frame #11: 0x30072ca2 UIKit`-[UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:] + 378
frame #12: 0x3007fb9a UIKit`-[UIView(Internal) _addSubview:positioned:relativeTo:] + 418
frame #13: 0x3014490c UIKit`-[UITableViewCell _addSubview:positioned:relativeTo:] + 88
frame #14: 0x3007f9f2 UIKit`-[UIView(Hierarchy) addSubview:] + 30
frame #15: 0x00068b2e 4399Games1.0`-[SJGameDetailController tableView:cellForRowAtIndexPath:](self=0x162c8e00, _cmd=0x3065c3d7, tableView=0x163b0c00, indexPath=0x19172ab0) + 6478 at SJGameDetailController.m:1515
frame #16: 0x301a6314 UIKit`-[UITableView _createPreparedCellForGlobalRow:withIndexPath:] + 408
frame #17: 0x3014e6cc UIKit`-[UITableView _updateVisibleCellsNow:] + 1800
frame #18: 0x3014def0 UIKit`-[UITableView layoutSubviews] + 184
frame #19: 0x30074352 UIKit`-[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 346
frame #20: 0x2fcfa942 QuartzCore`-[CALayer layoutSublayers] + 142
frame #21: 0x2fcf6166 QuartzCore`CA::Layer::layout_if_needed(CA::Transaction*) + 350
frame #22: 0x2fcf5ff8 QuartzCore`CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 16
frame #23: 0x2fcf5a0c QuartzCore`CA::Context::commit_transaction(CA::Transaction*) + 228
frame #24: 0x2fcf581e QuartzCore`CA::Transaction::commit() + 314
frame #25: 0x2fcef54c QuartzCore`CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 56
frame #26: 0x2d8baf68 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 20
frame #27: 0x2d8b88f6 CoreFoundation`__CFRunLoopDoObservers + 286
frame #28: 0x2d8b8c42 CoreFoundation`__CFRunLoopRun + 738
frame #29: 0x2d823470 CoreFoundation`CFRunLoopRunSpecific + 524
frame #30: 0x2d823252 CoreFoundation`CFRunLoopRunInMode + 106
frame #31: 0x3255d2ea GraphicsServices`GSEventRunModal + 138
frame #32: 0x300d8844 UIKit`UIApplicationMain + 1136
frame #33: 0x000498c8 4399Games1.0`main(argc=1, argv=0x27dbecfc) + 116 at main.m:16

Answer 1

雷弗莱克走上了正轨。

如果您想关闭由于视图中某个textfield而导致的键盘，请使用以下命令&让iOS处理响应链

[self.view endEditing:YES];

如果视图中有一个表，而且该表中到处都有textfields，这是非常有用的。

来自Apple：

- (BOOL)endEditing:(BOOL)force

说明会导致视图(或其嵌入式文本字段之一)放弃第一个响应状态。此方法查看当前第一个响应程序的文本字段的当前视图及其子视图层次结构。如果它找到了一个，它会要求文本字段辞去第一个响应者的职务。如果将强制参数设置为“是”，则甚至不会询问文本字段；它将被迫辞职。参数

力

指定“是”以强制第一响应者辞职，而不管它是否愿意这样做。如果视图退出了第一个响应状态，则返回“是”，否则返回“否”。

Answer 2

我对UITextField也有同样的问题。当我取代

[myTextField resignFirstResponder];

使用

[myTextField endEditing:YES];

坠机停止了。