系统盘datePicker、调整Nav后退按钮位置调整,电话短信邮件分享

一、设置软键盘为时间选择器

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{self.indexPath = indexPath;//获取当前点击的cellUITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];//为了点击cell的时候能弹出键盘//生成文本框，并且让文本框成为第一响应者UITextField *txt = [UITextField new];[cell addSubview:txt];//设置键盘的工具栏CZKeyboard *tool = [CZKeyboard keyboardTool];tool.delegate = self;txt.inputAccessoryView = tool;//弹出datePickerUIDatePicker *datePicker = [[UIDatePicker alloc] init];self.datePicker = datePicker;datePicker.datePickerMode = UIDatePickerModeTime;datePicker.backgroundColor = [UIColor lightGrayColor];//把弹出键盘改成datePickertxt.inputView = datePicker;//让文本框成为第一响应者，此处之前 应该先设置inputView[txt becomeFirstResponder];}

二、自定义后退按钮位置调整


//如果tableView启用分组的话。第一组之前会有空白。把空白去掉
self.tableView.tableHeaderView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, -1)];


“`
//1 自定义后退按钮
UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithImage:[[UIImage imageNamed:@”NavBack”] originalImage] style:UIBarButtonItemStylePlain target:self action:@selector(backClick)];

// 后退按钮距离图片距离左边边距UIBarButtonItem *fixedItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];fixedItem.width = -10;self.navigationItem.leftBarButtonItems = @[fixedItem,backItem];//自定义后退按钮后，手势返回上一级控制器的功能恢复self.navigationController.interactivePopGestureRecognizer.delegate = nil;```

三、NSInterger格式问题

%ld
%d
%zd 根据当前系统判断返回类型 64位 32位

四、电话分享、短信分享、邮件分享

  __weak typeof(self) weakSelf = self;    CZItem *item1 = [CZItemArrow itemWithTitle:@"电话分享" icon:nil option:^{        //通话完成会回到当前应用， 以前的时候不会回到当前应用//        NSURL *url = [NSURL URLWithString:@"tel://54188"];//        [[UIApplication sharedApplication] openURL:url];        //打电话之前会有提示  回到当前应用   私有的api//        NSURL *url = [NSURL URLWithString:@"telprompt://54188"];//        [[UIApplication sharedApplication] openURL:url];        NSURL *url = [NSURL URLWithString:@"tel://54188"];        NSURLRequest *request = [NSURLRequest requestWithURL:url];        [weakSelf.webView loadRequest:request];    }];    CZItem *item2 = [CZItemArrow itemWithTitle:@"短信分享" icon:nil option:^{        //发完短信之后。会到短信界面//        NSURL *url = [NSURL URLWithString:@"sms://54188"];//        [[UIApplication sharedApplication] openURL:url];        //判断设备是否能发送信息        if (![MFMessageComposeViewController canSendText]) {            return;        }        MFMessageComposeViewController *vc = [MFMessageComposeViewController new];        //收件人列表        vc.recipients = @[@"10000",@"10086"];        vc.body = @"推荐一个nb的游戏 http://www.nlcoder.com/test";        vc.subject = @"biaoti";        //设置代理        vc.messageComposeDelegate = weakSelf;        [weakSelf presentViewController:vc animated:YES completion:nil];    }];    CZItem *item3 = [CZItemArrow itemWithTitle:@"邮件分享" icon:nil option:^{        //判断是否能发送邮件        if (![MFMailComposeViewController canSendMail]) {            return;        }        MFMailComposeViewController *vc = [MFMailComposeViewController new];        vc.mailComposeDelegate = weakSelf;        //设置收件人        [vc setToRecipients:@[@"[e-mail]",@"[e-mail]"]];        //密送//        [vc setBccRecipients:<#(NSArray *)#>]        //抄送//        [vc setCcRecipients:<#(NSArray *)#>]        [vc setSubject:@"收福利了"];        [vc setMessageBody:@"送美女" isHTML:NO];        //        UIImage *img = [UIImage imageNamed:@"aa"];        NSData *data = UIImagePNGRepresentation(img);        [vc addAttachmentData:data mimeType:@"image/png" fileName:@"cls.png"];        [weakSelf presentViewController:vc animated:YES completion:nil];    }];    //controller(self) --> self.groups -->  group  -->  item   --> option  --> self    CZGroup *group = [CZGroup groupWithItems:@[item1,item2,item3]];    self.groups = @[group];

如果你能够在某个领域全身心投入一万个小时，那么你一定是那个领域的专家。