runtime查找 UIAlertAction 的key 及 UIActionSheet 设置字体颜色

修改不了颜色了 结果发现kvo 的key 不对 哎 直接上代码 设置正确的属性找到对应的key  还以为iOS 11改变了方法

unsigned int count;

Ivar *ivars =  class_copyIvarList([UIAlertAction class], &count);

for (int i = 0; i < count; i++) {

Ivar ivar = ivars[i];

const char * cName =  ivar_getName(ivar);

NSString *ocName = [NSString stringWithUTF8String:cName];

NSLog(@"%@",ocName);

}

free(ivars);

function:-[ReplayTextView takePhotoClick] line:192 content:_title

function:-[ReplayTextView takePhotoClick] line:192 content:_titleTextAlignment

function:-[ReplayTextView takePhotoClick] line:192 content:_enabled

function:-[ReplayTextView takePhotoClick] line:192 content:_checked

function:-[ReplayTextView takePhotoClick] line:192 content:_isPreferred

function:-[ReplayTextView takePhotoClick] line:192 content:_imageTintColor

function:-[ReplayTextView takePhotoClick] line:192 content:_titleTextColor

function:-[ReplayTextView takePhotoClick] line:192 content:_style

function:-[ReplayTextView takePhotoClick] line:192 content:_handler

function:-[ReplayTextView takePhotoClick] line:192 content:_simpleHandler

function:-[ReplayTextView takePhotoClick] line:192 content:_image

function:-[ReplayTextView takePhotoClick] line:192 content:_shouldDismissHandler

function:-[ReplayTextView takePhotoClick] line:192 content:__descriptiveText

function:-[ReplayTextView takePhotoClick] line:192 content:_contentViewController

function:-[ReplayTextView takePhotoClick] line:192 content:_keyCommandInput

function:-[ReplayTextView takePhotoClick] line:192 content:_keyCommandModifierFlags

function:-[ReplayTextView takePhotoClick] line:192 content:__representer

function:-[ReplayTextView takePhotoClick] line:192 content:__interfaceActionRepresentation

function:-[ReplayTextView takePhotoClick] line:192 content:__alertController

UIActionSheet 设置字体颜色  因为runtime没找到相应的key 直接去设置 但是通过 _alertController 还是能再次设置  喜迎十九大，人才辈出

- (void)takePhotoClick{

NSLog(@"z选择照片");

UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:STR(@"cancel") destructiveButtonTitle:nil otherButtonTitles:STR(@"checeImgAlbum"),@"Camera ", nil];

//    [sheet setValue:[UIColor colorWithHexCode:@"FD6501"] forKey:@"_titleTextColor"];

[sheet showInView:self.view];

unsigned int count;

Ivar *ivars =  class_copyIvarList([UIActionSheet class], &count);

for (int i = 0; i < count; i++) {

Ivar ivar = ivars[i];

const char * cName =  ivar_getName(ivar);

NSString *ocName = [NSString stringWithUTF8String:cName];

NSLog(@"%@",ocName);

}

free(ivars);

//    [sheet setTintColor:[UIColor orangeColor]];

}

-(void)willPresentActionSheet:(UIActionSheet *)actionSheet

{

SEL selector = NSSelectorFromString(@"_alertController");

if ([actionSheet respondsToSelector:selector])//ios8

{

UIAlertController *alertController = [actionSheet valueForKey:@"_alertController"];

if ([alertController isKindOfClass:[UIAlertController class]])

{

alertController.view.tintColor = [UIColor colorWithHexCode:@"FD6501"];

}

}

else//ios7

{

for( UIView * subView in actionSheet.subviews )

{

if( [subView isKindOfClass:[UIButton class]] )

{

UIButton * btn = (UIButton*)subView;

[btn setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];

}

}

}

}