i m 试图使用甲基溴 HUD. i 增加项目标题,进口舱位头盔,并打电话 HUD from anibaction in this way:
-(IBAction)submitForm:(id)sender{
MBProgressHUD *HUD = [[MBProgressHUD alloc] initWithView:self.view];
[self.view addSubview:HUD];
HUD.labelText = @"Connecting";
[HUD show:YES];
}
when i build project it happens an error:
Undefined symbols for architecture armv7:
"_OBJC_CLASS_$_MBProgressHUD", referenced from:
objc-class-ref in FormViewController.o
ld: symbol(s) not found for architecture armv7
collect2: ld returned 1 exit status
How can i fix it? can you help me?