废话不多说，直接上代码，效果是最好的说服力
1、改变UIAlertView字体颜色
[UIView appearance].tintColor = [UIColor greenColor];
由于在iOS 8推出UIAlertController取代UIAlertView,关于UIAlertController修改颜色请见下面 3
个人还是比较喜欢使用UIAlertView，简单粗暴达到想要的效果
2、改变UIActionSheet字体颜色
// 改变 actionSheet字体颜色
- (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 greenColor];
}
//ios7
} else{
for( UIView * subView in actionSheet.subviews ) {
if( [subView isKindOfClass:[UIButton class]] ) {
UIButton * btn = (UIButton*)subView;
[btn setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
}
}
}
}
3、改变UIAlertController字体颜色
- (void)buttonClick:(UIButton *)sender {
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"提示" message:@"提示内容" preferredStyle:UIAlertControllerStyleAlert];
//修改标题的内容，字号，颜色。使用的key值是“attributedTitle”
NSMutableAttributedString *hogan = [[NSMutableAttributedString alloc] initWithString:@"heihei"];
[hogan addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:50] range:NSMakeRange(0, [[hogan string] length])];
[hogan addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, [[hogan string] length])];
[alertController setValue:hogan forKey:@"attributedTitle"];
//修改按钮的颜色，同上可以使用同样的方法修改内容，样式
UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:@"Default" style:UIAlertActionStyleDefault handler:nil];
[defaultAction setValue:[UIColor blueColor] forKey:@"_titleTextColor"];
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:nil];
[cancelAction setValue:[UIColor greenColor] forKey:@"_titleTextColor"];
[alertController addAction:defaultAction];
[alertController addAction:cancelAction];
[self presentViewController:alertController animated:YES completion:nil];
}