iOS 网易彩票-6设置模块三(常用小功能)
2015-09-14 00:10 jiangys 阅读(581) 评论(0) 编辑 收藏 举报该篇文章中,用到很多iOS开发过程中常用的小功能,当前只是将这些功能集成到网易彩票的设置中。iOS-常用小功能介绍,请参考我的另一篇文章:
iOS 常用小功能 总结:http://www.cnblogs.com/jys509/p/4805030.html
关于
效果图
思路分析:
- 使用self.tableView.tableHeaderView 自定义组头部,通过加载xib来实现
- 评分支持,使用【iOS 常用小功能 总结】中“应用评分”小功能
- 客户电话,使用【iOS 常用小功能 总结】中“打电话”来实现
1.新建一个xib.看效果图,具体操作就不演示了。
相关代码 MJAboutHeaderView.h:
#import "MJAboutHeaderView.h" @implementation MJAboutHeaderView +(instancetype)headerView { return [[NSBundle mainBundle] loadNibNamed:@"MJAboutHeaderView" owner:nil options:nil][0]; } @end
2.新建一个控制器MJAboutViewController,继承于MJBaseSettingViewController
在里面加载xib,并实现应用评分和打电话功能。
#import "MJAboutViewController.h" #import "MJSettingArrowItem.h" #import "MJSettingGroup.h" @interface MJAboutViewController () //@property (nonatomic, strong) UIWebView *webView; @end @implementation MJAboutViewController - (void)viewDidLoad { [super viewDidLoad]; UIWebView *webView = [[UIWebView alloc] init]; webView.frame = CGRectZero; [self.view addSubview:webView]; // 1.具体数据 MJSettingItem *mark = [MJSettingArrowItem itemWithTitle:@"评分支持" destVcClass:nil]; mark.option = ^{ NSString *appid = @"725296055"; NSString *str = [NSString stringWithFormat:@"itms-apps://itunes.apple.com/cn/app/id%@?mt=8", appid]; NSURL *url = [NSURL URLWithString:str]; [[UIApplication sharedApplication] openURL:url]; }; MJSettingItem *call = [MJSettingArrowItem itemWithTitle:@"客户电话" destVcClass:nil]; call.subtitle = @"10010"; call.option = ^{ NSURL *url = [NSURL URLWithString:@"tel://10010"]; [webView loadRequest:[NSURLRequest requestWithURL:url]]; }; MJSettingGroup *group = [[MJSettingGroup alloc] init]; group.items = @[mark, call]; [self.data addObject:group]; // 2.header self.tableView.tableHeaderView = [UIButton buttonWithType:UIButtonTypeContactAdd]; } @end
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效果图
MJShareViewController.h
#import "MJShareViewController.h" #import "MJSettingArrowItem.h" #import "MJSettingGroup.h" #import <MessageUI/MessageUI.h> @interface MJShareViewController () <MFMessageComposeViewControllerDelegate, MFMailComposeViewControllerDelegate> @end @implementation MJShareViewController - (void)viewDidLoad { [super viewDidLoad]; //block里使用了强指针self,为了避免循环引用导致的内存泄露,要使用弱指针 __unsafe_unretained typeof(self) selfVc = self; MJSettingItem *sina = [MJSettingArrowItem itemWithIcon:@"WeiboSina" title:@"新浪微博" destVcClass:nil]; MJSettingItem *sms = [MJSettingArrowItem itemWithIcon:@"SmsShare" title:@"短信分享" destVcClass:nil]; sms.option = ^{ if (![MFMessageComposeViewController canSendText]) return; MFMessageComposeViewController *vc = [[MFMessageComposeViewController alloc] init]; // 设置短信内容 vc.body = @"吃饭了没?"; // 设置收件人列表 vc.recipients = @[@"10010", @"02010010"]; // 设置代理 vc.messageComposeDelegate = selfVc; // 显示控制器 [selfVc presentViewController:vc animated:YES completion:nil]; }; MJSettingItem *mail = [MJSettingArrowItem itemWithIcon:@"MailShare" title:@"邮件分享" destVcClass:nil]; mail.option = ^{ // 不能发邮件 if (![MFMailComposeViewController canSendMail]) return; MFMailComposeViewController *vc = [[MFMailComposeViewController alloc] init]; // 设置邮件主题 [vc setSubject:@"会议"]; // 设置邮件内容 [vc setMessageBody:@"今天下午开会吧" isHTML:NO]; // 设置收件人列表 [vc setToRecipients:@[@"55866@qq.com"]]; // 设置抄送人列表 [vc setCcRecipients:@[@"1234@qq.com"]]; // 设置密送人列表 [vc setBccRecipients:@[@"56789@qq.com"]]; // 添加附件(一张图片) UIImage *image = [UIImage imageNamed:@"lufy.png"]; NSData *data = UIImagePNGRepresentation(image); [vc addAttachmentData:data mimeType:@"image/png" fileName:@"lufy.png"]; // 设置代理 vc.mailComposeDelegate = selfVc; // 显示控制器 [selfVc presentViewController:vc animated:YES completion:nil]; }; MJSettingGroup *group = [[MJSettingGroup alloc] init]; group.items = @[sina, sms, mail]; [self.data addObject:group]; } /** * 短信 点击取消按钮会自动调用 */ - (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result { [controller dismissViewControllerAnimated:YES completion:nil]; } /** * 邮件 击取消按钮会自动调用 */ - (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error { [controller dismissViewControllerAnimated:YES completion:nil]; } - (void)dealloc { NSLog(@"----MJShareViewController----"); } @end
Block内循环引用导致的内存泄露
在block代码内,使用了强指针指向block所在的对象(例如self),导致循环引用,不能释放资源
将block内的对象引用设置为弱指针:使用"__weak"修饰符
注意:也不要使用强指针访问对象的属性
![](https://images2015.cnblogs.com/blog/292326/201509/292326-20150914000238153-1588650434.png)
block内的对象引用设置为弱指针,除了上面的使用 __unsafe_unretained