ios - UIResponder(静态)_setFirstResponder : break

Question

我对休息时间一无所知，你能为我提供一些线索吗，我们将不胜感激。

• thread #1: tid = 0x29927, 0x37c47b66 libobjc.A.dylib`objc_msgSend + 6, queue = 'com.apple.main-thread, stop reason = EXC_BAD_ACCESS (code=1, address=0x8000000c)

第 0 帧: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

Rayfleck 走在正确的轨道上。

当你因为 View 中某处的文本字段而想要关闭键盘时，使用以下并让 iOS 处理响应链

[self.view endEditing:YES];

当 View 中有一个表并且该表到处都有文本字段时，这非常有用。

来自 Apple 文档:

- (BOOL)endEditing:(BOOL)force

描述使 View (或其嵌入的文本字段之一)放弃第一响应者状态。此方法查看当前 View 及其 subview 层次结构，以查找当前是第一响应者的文本字段。如果找到一个，它会要求该文本字段辞去第一响应者的职务。如果 force 参数设置为 YES，则永远不会询问文本字段；它被迫辞职。参数
力
指定 YES 以强制第一响应者辞职，无论它是否愿意这样做。返回如果 View 放弃第一响应者状态，则为 YES；如果没有，则为 NO。