第二篇：_UICascadingTextStorage attributesAtIndex:effectiveRange:]: Range or index out of bounds

注意下文标红字段：

#pragma mark- 输入改变时

- (void) textFieldDidChanged:(UITextField *) TextField{

//搜索关键字一旦改变，将重新搜索，防止下拉的时候数据重复

_currentPage = 1;

bool isChinese;//判断当前输入法是否是中文

if ([[[UITextInputMode currentInputMode] primaryLanguage] isEqualToString: @"en-US"]) {

isChinese = false;

}

else

{

isChinese = true;

}

//去掉搜索中所有空格

NSString *seachtext = [[_seachtextField text] stringByReplacingOccurrencesOfString:@" " withString:@""];

NSLog(@"%@",seachtext);

_seachtextField.text=seachtext;

if (isChinese) { //中文输入法下

UITextRange *selectedRange = [TextField markedTextRange];

//获取高亮部分

UITextPosition *position = [TextField positionFromPosition:selectedRange.start offset:0];

// 没有高亮选择的字，则对已输入的文字进行请求

if (!position) {

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

if (_seachtextField.text.length>50) {

[ApplicationDelegate showMsg:@"输入搜索地址过长!" inView:ApplicationDelegate.window];

_seachtextField.text=[_seachtextField.text substringWithRange:NSMakeRange(0, 49)];

return ;

}

DLog(@"输入的英文转化为汉字的状态");

//                [self headerRereshing];

});

}else

{

DLog(@"复制粘贴很多文字，继续输入会导致崩溃：联想输入时输入的英文还没有转化为汉字的状态会导致崩溃");

//对超出限制长度情况进行判断，并直接退出

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

if (_seachtextField.text.length>50) {

_seachtextField.text=[_seachtextField.text substringWithRange:NSMakeRange(0, 49)];

return ;

}

return;

});

}

}else{

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

if (_seachtextField.text.length>50) {

[ApplicationDelegate showMsg:@"输入搜索地址过长!" inView:ApplicationDelegate.window];

_seachtextField.text=[_seachtextField.text substringWithRange:NSMakeRange(0, 49)];

return ;

}

DLog(@"输入英文的状态");

//            [self headerRereshing];

});

}

}