UIAlertController修改文字显示
不废话先上完整代码
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UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"提示" message:@"提示内容" preferredStyle:UIAlertControllerStyleAlert]; //修改标题 NSMutableAttributedString *attrTitle = [[NSMutableAttributedString alloc] initWithString:@"提示"]; [attrTitle addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:20] range:NSMakeRange(0, [[attrTitle string] length])]; [attrTitle addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, [[attrTitle string] length])]; [alertController setValue: attrTitle forKey:@"attributedTitle"]; //修改message NSMutableAttributedString * attrMessage = [[NSMutableAttributedString alloc] initWithString:@"提示内容"]; [attrMessage addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(0, [[attrMessage string] length])]; [attrMessage addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:15] range:NSMakeRange(0, [[attrMessage string] length])]; [alertController setValue: attrMessage forKey:@"attributedMessage"]; //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:@"确定" style:UIAlertActionStyleDefault handler:nil]; UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]; [defaultAction setValue:[UIColor orangeColor] forKey:@"_titleTextColor"]; [cancelAction setValue:[UIColor blueColor] forKey:@"_titleTextColor"]; [alertController addAction:defaultAction]; [alertController addAction:cancelAction]; [self presentViewController:alertController animated:YES completion:nil]; |
修改标题属性
key: attributedTitle
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//修改标题的内容，字号，颜色。使用的key值是“attributedTitle" NSMutableAttributedString *attr = [[NSMutableAttributedString alloc] initWithString:@"标题"]; [attr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:50] range:NSMakeRange(0, [[attr string] length])]; [attr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, [[hogan string] length])]; [alertController setValue:hogan forKey:@"attributedTitle"]; |
修改内容属性
key: attributedMessage
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//修改message NSMutableAttributedString * attrMessage = [[NSMutableAttributedString alloc] initWithString:@"提示内容"]; [attrMessage addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(0, [[attrMessage string] length])]; [attrMessage addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:15] range:NSMakeRange(0, [[attrMessage string] length])]; [alertController setValue: attrMessage forKey:@"attributedMessage"]; |
标题AlertAction按钮字体颜色
key: _titleTextColor或者titleTextColor
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//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:@"确定" style:UIAlertActionStyleDefault handler:nil]; UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]; [defaultAction setValue:[UIColor blackColor] forKey:@"_titleTextColor"]; [cancelAction setValue:[UIColor blackColor] forKey:@"_titleTextColor"]; [alertController addAction:defaultAction]; [alertController addAction:cancelAction]; |
效果图
