iOS中弹出警示框

iOS中弹出警示框

//    警示框提示请输入

UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"友情提示" message:@"用户名不能为空" delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:@"取消", nil];

//        显示警示框

[alertView show];

//    警示框提示请输入

UIActionSheet *actionSheet = [[UIActionSheet alloc]initWithTitle:@"友情提示" delegate:nil cancelButtonTitle:@"确定" destructiveButtonTitle:@"取消" otherButtonTitles:@"请确认信息", nil];

actionSheet.actionSheetStyle = UIActionSheetStyleBlackOpaque;

[actionSheet  showInView:loginView];