当用户通过语音input时，应用程序崩溃uitextview

当用户在UITextView中通过语音input文本时，应用程序崩溃，

碰撞方法

通过点击它使textview第一响应然后按下键盘上的麦克风button，然后讲话的东西，然后按完成应用程序崩溃..

在我的情况下uitextview没有什么特别的。

控制台输出

*

由于未捕获的exception“NSInvalidArgumentException”而终止应用程序，原因是：“尝试使用deleteCharactersInRange对不可变对象进行变异：”

• 第一掷调用堆栈：（0x19443c1c0 0x192e7455c 0x19443c108 0x1943d9b18 0x19a58d138 0x194e1a3c4 0x1943fd958 0x1943fb9e4 0x194e1a218 0x19aa9aac8 0x19aa9b270 0x19aa9a0b4 0x19aa97680 0x19aa979f0 0x19aa9afd0 0x19aa9b50c 0x19cdbf800 0x19cdbf064 0x19cdbf74c 0x19cdc4354 0x1005e925c 0x1005e921c 0x1005ee284 0x1943e9f2c 0x1943e7b18 0x194316048 0x195d99198 0x19a2e9628 0x19a2e4360 0x1001e03c4 0x1932f85b8）的libc ++ abi.dylib：与未捕获的exception终止键入NSException

进一步debugging我得到了（通过在控制台inputBT）它给了我

* thread #1: tid = 0x645a4, 0x000000019340a014 libsystem_kernel.dylib`__pthread_kill + 8, queue = 

'com.apple.main-thread'，stop reason = signal SIGABRT frame＃0：0x000000019340a014 libsystem_kernel.dylib __pthread_kill __pthread_kill + 8 frame #1: 0x00000001934d1460 libsystem_pthread.dylib pthread_kill + 112 frame＃2：0x000000019337e3f4 libsystem_c.dylib abort + 140 frame #3: 0x0000000192e492d4 libc++abi.dylib abort_message + 132 frame＃4：0x0000000192e66cc0 libc ++ abi.dylib default_terminate_handler() + 304 frame #5: 0x0000000192e74844 libobjc.A.dylib _objc_terminate（）+ 124 frame＃6：0x0000000192e6366c libc + + abi.dylib std::__terminate(void (*)()) + 16 frame #7: 0x0000000192e62f84 libc++abi.dylib __cxa_throw + 136 frame＃8：0x0000000192e74690 libobjc.A.dylib objc_exception_throw + 364 frame #9: 0x000000019443c108 CoreFoundation + [NSException raise：format：] + 116 frame＃10：0x00000001943d9b18 CoreFoundation mutateError + 132 frame #11: 0x000000019a58d138 UIKit – [UIScrollView description] + 104 frame＃12：0x0000000194e1a3c4 Foundation _NSDescriptionWithLocaleFunc + 108 frame #13: 0x00000001943fd958 CoreFoundation _NSDescriptionWithLocaleFunc + 108 frame #13: 0x00000001943fd958 CoreFoundation __CFStringAppendFormatCore + 7996帧＃14：0x00000001943fb9e4的CoreFoundation _CFStringCreateWithFormatAndArgumentsAux2 + 244 frame #15: 0x0000000194e1a218 Foundation + [NSString的stringWithFormat：] + 68帧＃16：0x000000019aa9aac8的UIKit -[UIDictationController insertSerializedDictationResult:withCorrectionIdentifier:] + 144 frame #17: 0x000000019aa9b270 UIKit __98 [UIDictationController finishDictationRecognitionWithPhrases：languageModel：correctionIdentifier：] _ block_invoke + 464 frame＃18：0x000000019aa9a0b4 UIKit -[UIDictationController performIgnoringDocumentChanges:] + 48 frame #19: 0x000000019aa97680 UIKit – [UIDictationController _runFinalizeOperation：] + 56 frame＃20：0x00000019aa979f0 UIKit -[UIDictationController setState:] + 612 frame #21: 0x000000019aa9afd0 UIKit – [UIDictationController finishDictationRecognitionWithPhrases：languageModel：correctionIdentifier：] + 552 frame＃22：0x000000019aa9b50c UIKit -[UIDictationController dictationConnection:didRecognizePhrases:languageModel:correctionIdentifier:] + 204 frame #23: 0x000000019cdbf800 AssistantServices -[UIDictationController dictationConnection:didRecognizePhrases:languageModel:correctionIdentifier:] + 204 frame #23: 0x000000019cdbf800 AssistantServices AFIDictationConnection _tellSpeechDelegateDidRecognizeSpeechPhrases：languageModel：correctionIdentifier：] _ block_invoke + 80 frame＃24：0x000000019cdbf064 AssistantServices -[AFDictationConnection _dispatchCallbackGroupBlock:] + 240 frame #25: 0x000000019cdbf74c AssistantServices – -[UIDictationController dictationConnection:didRecognizePhrases:languageModel:correctionIdentifier:] + 204 frame #23: 0x000000019cdbf800 AssistantServices -[AFDictationConnection _dispatchCallbackGroupBlock:] + 240 frame #25: 0x000000019cdbf74c AssistantServices – [AFDictationConnection _tellSpeechDelegateDidRecognizeSpeechPhrases：语言模型：correctionIdentifier：] + 356帧＃26：0x000000019cdc4354 AssistantServices __101-[AFDictationConnectionServiceDelegate speechDidRecognizePhrases:usingSpeechModel:correctionContext:]_block_invoke + 76 frame #27: 0x00000001005e925c libdispatch.dylib _dispatch_call_block_and_release + 24帧＃28：0x00000001005e921c libdispatch.dylib _dispatch_client_callout + 16 frame #29: 0x00000001005ee284 libdispatch.dylib _dispatch_main_queue_callback_4CF + 1200帧＃30：0x00000001943e9f2c CoreFoundation __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12 frame #31: 0x00000001943e7b18 CoreFoundation __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12 frame #31: 0x00000001943e7b18 CoreFoundation __CFRunLoopRun + 1660 frame＃32：0x0000000194316048 CoreFoundation CFRunLoopRunSpecific + 444 frame #33: 0x0000000195d99198 GraphicsServices GSEventRunModal + 180 frame＃34：0x000000019a2e9628 UIKit -[UIApplication _run] + 684 frame #35: 0x000000019a2e4360 UIKit UIApplicationMain main(argc=1, argv=0x000000016fdd3ab8) + 124 at main.m:16 frame #37: 0x00000001932f85b8 libdyld.dylib -mobile main(argc=1, argv=0x000000016fdd3ab8) + 124 at main.m:16 frame #37: 0x00000001932f85b8 libdyld.dylib start + 4

使用的代码

 @property(strong,nonatomic) UITextView *addressTextView; - (void)viewDidLoad { [super viewDidLoad]; addressTextView.delegate = self; addressTextView.text = [self.dictionaryEditObject objectForKey:@"location"]; } -(void)textViewDidBeginEditing:(UITextView *)textView { } - (BOOL)textViewShouldBeginEditing:(UITextView *)textView { NSLog(@"textViewShouldBeginEditing:"); return YES; } -(void)textViewDidEndEditing:(UITextView *)textView { NSLog(@"textViewDidEndEditing"); } 

尝试在iOS：10.2,9.3设备：iPad，iPod，iPhone 5s在每台设备上崩溃

任何帮助将不胜感激

Answer 1

首先要做的是子类UITextView，并在该子类重写func accessibilityActivate（） – >布尔。 然后创build一个委托来处理TextView被激活时发生的事情，并通过重写的方法调用它。

然后设置基于UIAccessibilityIsVoiceOverRunning（）的TextView的委托，所以如果voice over正在运行，那么将UITextViewDelegate设置为nil，这样可以防止发生崩溃，然后激活操作由您在上面的子类中覆盖的方法处理。 最后，为UIAccessibilityVoiceOverStatusChanged设置一个监听器，并将UITextViewDelegate设置为从零到另一个，并将其设置为相反scheme的原始代理类。