我正在将一个应用程序更新到iOS 6到iOS 7.但是我遇到了关于类的问题。在iOS 6中，它显示了类名自定义按钮，但在iOS 7中显示了_UITextContainerView。
for (UIView *subView in textViewButton.subviews)
{
NSLog(@"yourObject is a: %@", [subView class]);
@autoreleasepool
{
if([subView isKindOfClass:[CustomButton class]])
{
CustomButton *button = (CustomButton*)subView;
button.backgroundColor = [UIColor redColor];
[button setType:kButtonTypeQuestion];
button.titleLabel.font = kFontForContentPhone;
if (button.tag == 62254 || button.tag == 62263)
{
CGRect tempFrame = button.frame;
tempFrame.origin.x = button.frame.origin.x - 3.0f;
button.frame = tempFrame;
}
if (self.soundFile != nil)
{
CGRect tempFrame = button.frame;
tempFrame.size.width = button.frame.size.width + 28.0f;
button.frame = tempFrame;
[button setContentEdgeInsets:UIEdgeInsetsMake(5.0f, 30.0f, 5.0f, 10.0f)];
}
}
}
}
更新
self.questionScrollView = [[CustomScrollView alloc] initWithFrame:CGRectMake(0, currentYPosition, self.frame.size.width, self.frame.size.height - currentYPosition - 60.0f)];
self.questionScrollView.showsVerticalScrollIndicator = NO;
self.questionsContainer = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.questionScrollView.frame.size.width, self.questionScrollView.frame.size.height)];
currentYPosition = 0;
for (Question *question in self.questions)
{
@autoreleasepool
{
self.ttmItem = [[TapToMoveItem alloc] initWithFrame:CGRectMake(0, currentYPosition, self.frame.size.width, self.frame.size.height)];
self.ttmItem.ttmDelegate = self;
self.ttmItem.variant = self.exercise.variant;
ttmItem.x_Position = question.x_position;
ttmItem.y_Position = question.y_position;
if ([question.sound_file length] > 0 || question.sound_file != nil)
self.ttmItem.hasAudio = YES;
else
self.ttmItem.hasAudio = NO;
if ([kPrefixImage isEqualToString:@"preint_"] && ([self.exercise.exercise_id integerValue] == 54 || [self.exercise.exercise_id integerValue] == 91)) {
ttmItem.soundFile = self.exercise.header_title;
}
self.ttmItem.prefix = question.prefix;
self.ttmItem.text = question.text;
self.ttmItem.longestPrefix = longestPrefix;
self.ttmItem.longestAnswer = longestAnswer;
self.ttmItem.buttonWidth = sizeForButton.width;
//get and set answers
ttmItem.answers = [self.answers objectForKey:question.question_id];
[self.ttmItem createForPhone];
[self.questionsContainer addSubview:self.ttmItem];
currentYPosition += ttmItem.frame.size.height + SPACE_BET_VIEWS;
// itemHeight = ttmItem.frame.size.height; //hack
// itemWidth = ttmItem.frame.size.width;
ttmCount++;
if ([ttmItem.arrayOfTextViewButtons count] > 0) {
[dictionaryOfItemButtons setObject:ttmItem.arrayOfTextViewButtons forKey:question.question_id];
}
}
}
self.questionsContainer.frame = CGRectMake(questionsContainer.frame.origin.x, questionsContainer.frame.origin.y, questionsContainer.frame.size.width, currentYPosition );
[self.questionScrollView setContentSize:self.questionsContainer.frame.size];
[self.questionScrollView addSubview:self.questionsContainer];
[self addSubview:self.questionScrollView];
[self setScrollEnabled:NO];
}
我无法找到它为什么在任何对象的类名中显示不同的原因。此外，我没有在谷歌上发现任何有关此问题。如果有人对此有所了解，请帮助我。
提前致谢。
答案 0 :(得分：2)
我通过这样做解决了这个问题：
for (UIView *subView in textViewButton.textInputView.subviews)
{
// const char* className = class_getName([yourObject class]);
NSLog(@"yourObject is a: %@", [subView class]);
@autoreleasepool
{
if([subView isKindOfClass:[CustomButton class]])
{
CustomButton *button = (CustomButton*)subView;
button.backgroundColor = [UIColor clearColor];
[button setType:kButtonTypeQuestion];
button.titleLabel.font = kFontForContentPhone;
if (button.tag == 62254 || button.tag == 62263)
{
CGRect tempFrame = button.frame;
tempFrame.origin.x = button.frame.origin.x - 3.0f;
button.frame = tempFrame;
}
if (self.soundFile != nil)
{
CGRect tempFrame = button.frame;
tempFrame.size.width = button.frame.size.width + 28.0f;
button.frame = tempFrame;
[button setContentEdgeInsets:UIEdgeInsetsMake(5.0f, 30.0f, 5.0f, 10.0f)];
}
}
}
}
答案 1 :(得分：0)
循环浏览所有子视图，直到找到您的对象。如果你碰巧发现对象退出循环以保存任何不必要的资源
for (UIView *subView in textViewButton.subviews)
{
NSLog(@"yourObject is a: %@", [subView class]);
@autoreleasepool
{
if([subView isKindOfClass:[CustomButton class]])
{
CustomButton *button = (CustomButton*)subView;
button.backgroundColor = [UIColor redColor];
[button setType:kButtonTypeQuestion];
button.titleLabel.font = kFontForContentPhone;
if (button.tag == 62254 || button.tag == 62263)
{
CGRect tempFrame = button.frame;
tempFrame.origin.x = button.frame.origin.x - 3.0f;
button.frame = tempFrame;
}
if (self.soundFile != nil)
{
CGRect tempFrame = button.frame;
tempFrame.size.width = button.frame.size.width + 28.0f;
button.frame = tempFrame;
[button setContentEdgeInsets:UIEdgeInsetsMake(5.0f, 30.0f, 5.0f, 10.0f)];
}
}
else if ([subView isKindOfClass:NSClassFromString(@"_UITextContainerView")]) {
// do a another loop
for (UIView *innerSubViews in subView.subviews) {
if([subView isKindOfClass:[CustomButton class]])
{
// call your custom button method here
break; // stop inner loop
}
}
}
}
}