系统默认的字体是黑色，按钮颜色是蓝色或者红色的，我们怎样自定义字体呢
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UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:@"提示" message:@"确认退出登录？" preferredStyle:(UIAlertControllerStyleAlert)]; UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) { NSLog(@"点击了Cancel"); [alertVC dismissViewControllerAnimated:YES completion:nil]; }]; UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { NSLog(@"点击了OK"); [[NSUserDefaults standardUserDefaults] setObject:nil forKey:kLoginUserKey]; [alertVC dismissViewControllerAnimated:YES completion:nil]; }]; //修改title NSMutableAttributedString *alertControllerStr = [[NSMutableAttributedString alloc] initWithString:@"提示"]; [alertControllerStr addAttribute:NSForegroundColorAttributeName value:kMainTextColor range:NSMakeRange(0, 2)]; [alertControllerStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:15] range:NSMakeRange(0, 2)]; [alertVC setValue:alertControllerStr forKey:@"attributedTitle"]; //修改message NSMutableAttributedString *alertControllerMessageStr = [[NSMutableAttributedString alloc] initWithString:@"确认退出登录？"]; [alertControllerMessageStr addAttribute:NSForegroundColorAttributeName value:kSubTextColor range:NSRangeFromString(@"确认退出登录？")]; [alertControllerMessageStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:13] range:NSRangeFromString(@"确认退出登录？")]; [alertVC setValue:alertControllerMessageStr forKey:@"attributedMessage"]; //修改按钮字体颜色 [cancelAction setValue:kGreenColor forKey:@"titleTextColor"]; [okAction setValue:kGreenColor forKey:@"titleTextColor"]; [alertVC addAction:cancelAction]; [alertVC addAction:okAction]; [self presentViewController:alertVC animated:YES completion:nil]; |
这里的kGreenColor 等是我自定义的颜色，换成自己的字体颜色即可
以上这篇iOS 修改alertViewController弹框的字体颜色及字体的方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：http://blog.csdn.net/Kaiccy/article/details/79004901?utm_source=5ibc.net&utm_medium=referral
