iOS7仅返回'；NSInvalidArgumentException'；，原因:'-[\uu NSCFString包含字符串：]：
我正在使用一个图书应用程序，用户可以点击一个单词，然后播放包含该单词的音频文件的一部分，并突出显示该单词。不幸的是，我现在遇到了一些错误，因为我已经尝试优化代码，从仅支持iOS8到也支持iOS7 这是我得到的错误：iOS7仅返回'；NSInvalidArgumentException'；，原因:'-[\uu NSCFString包含字符串：]：,ios,xcode,Ios,Xcode,我正在使用一个图书应用程序，用户可以点击一个单词，然后播放包含该单词的音频文件的一部分，并突出显示该单词。不幸的是，我现在遇到了一些错误，因为我已经尝试优化代码，从仅支持iOS8到也支持iOS7 这是我得到的错误： 2015-06-10 10:42:50.455 Chi Shin får en hund[63976:607] selected :sammen -- <_UITextKitTextPosition: 0x7862b8b0> (28B) 2015-06-10 10:42:
2015-06-10 10:42:50.455 Chi Shin får en hund[63976:607] selected :sammen -- <_UITextKitTextPosition: 0x7862b8b0> (28B)
2015-06-10 10:42:50.456 Chi Shin får en hund[63976:607] -[__NSCFString containsString:]: unrecognized selector sent to instance 0x78f585a0
2015-06-10 10:42:50.458 Chi Shin får en hund[63976:607] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString containsString:]: unrecognized selector sent to instance 0x78f585a0'
*** First throw call stack:
(
0 CoreFoundation 0x023371e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x020b68e5 objc_exception_throw + 44
2 CoreFoundation 0x023d4243 -[NSObject(NSObject) doesNotRecognizeSelector:] + 275
3 CoreFoundation 0x0232750b ___forwarding___ + 1019
4 CoreFoundation 0x023270ee _CF_forwarding_prep_0 + 14
5 Chi Shin faÃär en hund 0x000ab695 -[DataViewController pageWordTapped:] + 805
6 UIKit 0x015384f4 _UIGestureRecognizerSendActions + 230
7 UIKit 0x01537168 -[UIGestureRecognizer _updateGestureWithEvent:buttonEvent:] + 383
8 UIKit 0x01538bdd -[UIGestureRecognizer _delayedUpdateGesture] + 60
9 UIKit 0x0153c13d ___UIGestureRecognizerUpdate_block_invoke + 57
10 UIKit 0x0153c0be _UIGestureRecognizerRemoveObjectsFromArrayAndApplyBlocks + 317
11 UIKit 0x015327ac _UIGestureRecognizerUpdate + 199
12 UIKit 0x011dda5a -[UIWindow _sendGesturesForEvent:] + 1291
13 UIKit 0x011de971 -[UIWindow sendEvent:] + 1021
14 UIKit 0x011b05f2 -[UIApplication sendEvent:] + 242
15 UIKit 0x0119a353 _UIApplicationHandleEventQueue + 11455
16 CoreFoundation 0x022c077f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
17 CoreFoundation 0x022c010b __CFRunLoopDoSources0 + 235
18 CoreFoundation 0x022dd1ae __CFRunLoopRun + 910
19 CoreFoundation 0x022dc9d3 CFRunLoopRunSpecific + 467
20 CoreFoundation 0x022dc7eb CFRunLoopRunInMode + 123
21 GraphicsServices 0x0380a5ee GSEventRunModal + 192
22 GraphicsServices 0x0380a42b GSEventRun + 104
23 UIKit 0x0119cf9b UIApplicationMain + 1225
24 Chi Shin faÃär en hund 0x000dad2a main + 138
25 libdyld.dylib 0x030606d9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
- (void) pageWordTapped:(UITapGestureRecognizer *)recognizer{
UITextView *textView = (UITextView *)recognizer.view;
CGPoint location = [recognizer locationInView:textView];
// NSLog(@"Tap Gesture Coordinates: %.2f %.2f -- %@", location.x, location.y,textView.text);
CGPoint position = CGPointMake(location.x, location.y);
//get location in text from textposition at point
UITextPosition *tapPosition = [textView closestPositionToPoint:position];
//fetch the word at this position (or nil, if not available)
UITextRange *textRange = [textView.tokenizer rangeEnclosingPosition:tapPosition withGranularity:UITextGranularityWord inDirection:UITextLayoutDirectionRight];
NSString *tappedSentence = [textView textInRange:textRange];
NSLog(@"selected :%@ -- %@",tappedSentence,tapPosition);
if (!togglePlayIsOn) {
for (int i = 0; i < wordArray.count; i ++) {
WordModel *wordModel = wordArray[i];
if ((wordModel.word.length - tappedSentence.length) < 3 && [wordModel.word containsString:tappedSentence]) {
double timeInterval = [wordModel.endTime doubleValue] - [wordModel.startTime doubleValue];
NSTimeInterval intervalForTimer = timeInterval;
NSLog(@"timeInterval :%@, %@, %f", wordModel.startTime, wordModel.endTime, intervalForTimer);
[NSTimer scheduledTimerWithTimeInterval:0.0
target:self
selector:@selector(highlightWord:)
userInfo:@{@"rangeLocation": wordModel.rangeLocation, @"rangeLength": wordModel.rangeLength}
repeats:NO];
[NSTimer scheduledTimerWithTimeInterval:intervalForTimer
target:self
selector:@selector(unHighlightEndOfText:)
userInfo:@{@"wordLength": [NSNumber numberWithInt:1]}
repeats:NO];
[self playWord:[wordModel.startTime doubleValue] endTime:[wordModel.endTime doubleValue]];
return;
}
}
}
}
-（void）pageWordTapped:（UITapGestureRecognitizer*）识别器{
UITextView*textView=（UITextView*）识别器.view；
CGPoint位置=[识别器位置视图：文本视图]；
//NSLog（@“点击手势坐标：%.2f%.2f--%@”，位置.x，位置.y，文本视图.text）；
CGPoint位置=CGPointMake（位置.x，位置.y）；
//从点处的textposition获取文本中的位置
UITextPosition*tapPosition=[textView closestPositionToPoint:position]；
//在此位置提取单词（如果不可用，则为nil）
UITextRange*textRange=[textView.tokenizer RangeEnclosuringPosition:tapPosition with Granularity:UITextGranularityWord inDirection:UITextLayoutDirectionRight]；
NSString*TAPPEDSENTRAGE=[textView textInRange:textRange]；
NSLog（@“所选：%@--%@”，点击句子，点击位置）；
如果（！切换Playison）{
对于（int i=0；i如果我对
If（！togglePlayIsOn）If，那么应用程序不会崩溃，因此我相信在该代码段中会发生错误。检查[NSString containsString:://code>的方法仅在iOS8上可用，要在iOS7上执行此操作，您需要：
NSString *string = @"foo";
if ([string rangeOfString:@"oo"].location == NSNotFound) {
} else {
}
问题是containssString:
是一个IOS8API，因此在iOS7下崩溃。
你可以换一个
[wordModel.word containsString:tappedSentence]
与
由于使用了[wordModel.word containsString:tappedstance]
containsString，您的代码崩溃在iOS 8及更高版本中可用。如果您想同时使用iOS 7和iOS 8+，请使用以下代码-
使用rangeOfString在类别中实现containsString：
@implementation NSString (Contains)
- (BOOL)myContainsString:(NSString*)other {
NSRange range = [self rangeOfString:other];
return range.length != 0;
}
希望这对你有帮助。哦，是的。。这绝对是最简单、最简单的方法。。谢谢
[wordModel.word rangeOfString:tappedSentence].location != NSNotFound
@implementation NSString (Contains)
- (BOOL)myContainsString:(NSString*)other {
NSRange range = [self rangeOfString:other];
return range.length != 0;
}