修改UIAlertController的title和message属性，代码如下：
/**点击屏幕的空白处时触发事件*/
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent*)event{
//1.创建提示框控制器
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"title"message:@"message"preferredStyle:UIAlertControllerStyleActionSheet];
//2.创建事件
UIAlertAction *sureAction = [UIAlertAction actionWithTitle:@"sure"style:UIAlertActionStyleDefault handler:^(UIAlertAction*_Nonnull action) {
//do something you want when fire the sure event
NSLog(@"you click the sure button");
}];
UIAlertAction*cancelAction = [UIAlertAction actionWithTitle:@"cancel"style:UIAlertActionStyleCancel handler:^(UIAlertAction*_Nonnull action) {
//do something you want when fire the cancel event
NSLog(@"you click the cancel button");
}];
//3.修改显示的样式
//3.1修改title文字的显示样式
NSMutableAttributedString *titleAttribute = [[NSMutableAttributedString alloc]initWithString:@"title"];
[titleAttribute addAttribute:NSForegroundColorAttributeName value:[UIColorredColor] range:NSMakeRange(0,5)];
[titleAttribute addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:26]range:NSMakeRange(0,5)];
[alertController setValue:titleAttribute forKey:@"attributedTitle"];
//3.2修改message文字的显示样式
NSMutableAttributedString *messageAttribute = [[NSMutableAttributedString alloc]initWithString:@"message"];
[messageAttribute addAttribute:NSForegroundColorAttributeName value:[UIColor purpleColor]range:NSMakeRange(0,7)];
[messageAttribute addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:20]range:NSMakeRange(0,7)];
[alertController setValue:messageAttribute forKey:@"attributedMessage"];
//3.3修改按钮的颜色
[sureAction setValue:[UIColor colorWithRed:0.1green:0.1blue:0.1alpha:1]forKey:@"titleTextColor"];
[cancelAction setValue:[UIColor redColor] forKey:@"titleTextColor"];
//4.给提示控制器添加事件
[alertController addAction:sureAction];
[alertController addAction:cancelAction];
//5.推出并显示提示控制器alertController
[self presentViewController:alertController animated:YES completion:nil];
}
代码图：
QQ20160616-0@2x.png
效果图：
QQ20160616-1@2x.png
