IOS手札

iphone尺寸

iphone5:320*568

iphone6:375*667

iphone6 plus:414*736/1.15

http://www.paintcodeapp.com/news/iphone-6-screens-demystified

NSLog打印的字符串编码为： Unicode

自定义提示语颜色 

var placeholder = NSAttributedString(string: " 请输入短信验证码 ", attributes: [NSForegroundColorAttributeName : UIColor(red: 68/255, green: 68/255, blue: 68/255, alpha: 1)])

self.noteTextField?.attributedPlaceholder=placeholder

图片点击事件

UIImage *image = [UIImage imageNamed:imageName]; 

    UIImageView *imageView = [[UIImageView alloc] initWithImage:image]; 

    imageView.frame = self.view.bounds; 

    imageView.userInteractionEnabled = YES; 

 

    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissGuideView)]; 

    [imageView addGestureRecognizer:tap]; 

 

    [self.view addSubview:imageView]; 

视图截获所有子视图的点击事件，使子视图不能获取点击

  override func hitTest(point: CGPoint , withEvent event: UIEvent ?) -> UIView ? {

        return self//返回本视图，不再向下传递

    }

获取版本号

[[[NSBundle mainBundle] infoDictionary] objectForKey:@ "CFBundleShortVersionString" ]

引导页判断

[[ NSUserDefaults standardUserDefaults ] setObject : @"show" forKey :[ @"showGuidence" stringByAppendingString : [[[NSBundle mainBundle] infoDictionary] objectForKey:@ "CFBundleShortVersionString" ] ]];//需要和版本号关联

[[ NSUserDefaults standardUserDefaults ] synchronize ];

毛玻璃效果

UIVisualEffectView *visualEffect = [[UIVisualEffectView alloc]initWithEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleExtraLight]];

    visualEffect.frame = CGRectMake(20, 90, 280, 300);

    visualEffect.alpha = 0.9;

    [ self. view  addSubview:visualEffect];

UIView单面边框

 myImageView. layer . borderWidth = 0.0
                let topBorder= CALayer ()
                topBorder. frame = CGRectMake ( 0 , 0 , myImageView. frame . width , 1 )
                topBorder. backgroundColor = UIColor . blackColor (). CGColor
                myImageView. layer . addSublayer (topBorder)
               
                let leftBorder= CALayer ()
                leftBorder. frame = CGRectMake ( 0 , 0 , 1 , myImageView. frame . height )
                leftBorder. backgroundColor = UIColor . blackColor (). CGColor
                myImageView. layer . addSublayer (leftBorder)
               
                let bottomBorder= CALayer ()
                bottomBorder. frame = CGRectMake ( 0 , myImageView. frame . height , myImageView. frame . width , 1 )
                bottomBorder. backgroundColor = UIColor . blackColor (). CGColor

                myImageView.layer.addSublayer(bottomBorder)

分割线

  let topBorder=CALayer()

                topBorder.frame=CGRectMake(0, 0, myImageView.frame.width, 1)

                topBorder.backgroundColor=UIColor.blackColor().CGColor

                myImageView.layer.addSublayer(topBorder)

                let bottomBorder=CALayer()

                bottomBorder.frame=CGRectMake(0, myImageView.frame.height, myImageView.frame.width, 1)

                bottomBorder.backgroundColor=UIColor.blackColor().CGColor

                myImageView.layer.addSublayer(bottomBorder)

UIView *hView = [[ UIView alloc ] initWithFrame : CGRectMake ( 0 , 0 , ScreenWidth , 30 )];
    CALayer *bottomBorder=[[ CALayer alloc ] init ];
    bottomBorder. frame = CGRectMake ( 0 , 0 , hView. frame . size . width , 0.5 );
    bottomBorder. backgroundColor = lineGrayColor . CGColor ;

    [hView.layer addSublayer:bottomBorder ];

//01，02...09，10，11...

%02d

DEBUG和Release修改

然后点击Edit Scheme后进行修改

在本视图控制器下弹出另一个视图控制器的内容

[ self . navigationController . view addSubview :skuController. view ];

UILabel不同的字体颜色

  NSMutableAttributedString *orderStateAttributedString = [[ NSMutableAttributedString alloc ] initWithString : @" 订单状态：暂无 " ];
    [orderStateAttributedString addAttribute : NSForegroundColorAttributeName value :[ UIColor blackColor ] range : NSMakeRange ( 0 , 5 )];
    [orderStateAttributedString addAttribute : NSFontAttributeName value :[ UIFont systemFontOfSize : 14 ] range : NSMakeRange ( 0 , 5 )];

    self.orderStateLabel.attributedText = orderStateAttributedString;

UIView点击事件

UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(Actiondo:)];

    [uiview addGestureRecognizer:tapGesture];

-(void)Actiondo: ( UITapGestureRecognizer *)recognizer{

//获取所点击视图recognizer. view

}

自动布局动画和重绘

 [ self setNeedsLayout ];

    [self layoutIfNeeded];

-setNeedsUpdateConstraints和-layoutIfNeeded两个方法来刷新约束的改变，使UIView重新布局。

 [ self . contentView setNeedsLayout ];
        [ self . contentView layoutIfNeeded ];
        [ self . contentView removeConstraint : self . photographButtonConstraint ];
        self . photographButtonConstraint = [ NSLayoutConstraint
                                           constraintWithItem : self . photographButton
                                           attribute : NSLayoutAttributeLeft
                                           relatedBy : NSLayoutRelationEqual
                                           toItem : self . photographImageViewArray [imageArray. count ]
                                           attribute : NSLayoutAttributeLeft
                                           multiplier : 1
                                           constant : 0 ];

        [self.contentView addConstraint:self.photographButtonConstraint];

UITectField 左侧空出一定的边距

   self.addressContentText.leftView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 10, 0)];

    self.addressContentText.leftViewMode = UITextFieldViewModeAlways;

UIView加边框及边框颜色

frameView.layer.borderWidth = 1;

        frameView.layer.borderColor = [[UIColor whiteColor] CGColor];

圆角

       //设置圆角边框

        myview.layer.cornerRadius = 5;

        myview.layer.masksToBounds = YES;

        //设置边框及边框颜色

        myview.layer.borderWidth = 0.5;

        myview.layer.borderColor =[ [UIColor grayColor] CGColor];

局部圆角

  UIBezierPath *maskPath = [ UIBezierPath bezierPathWithRoundedRect : self . submitAlertView . bounds byRoundingCorners : UIRectCornerTopLeft | UIRectCornerTopRight cornerRadii : CGSizeMake ( 10 , 10 )];
    CAShapeLayer *maskLayer = [[ CAShapeLayer alloc ] init ];
    maskLayer. frame = self . submitAlertView . bounds ;
    maskLayer. path = maskPath. CGPath ;

    self.submitAlertView.layer.mask = maskLayer;

UITableView 去除底部多余分割线

 [ tableView setTableFooterView :[[ UIView alloc ] init ]];

UILabel多行

  self . promptContent . lineBreakMode = NSLineBreakByWordWrapping ;

    self.promptContent.numberOfLines = 0;//上面两行设置多行显示

//单行时顶部对齐

self . text  = [ self . text stringByAppendingString :@ "\n " ];

快速创建字典

[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInt: self .page], @"page" ,[NSNumber numberWithInt: 10 ], @"limit" , self .ids, @"status_id" , nil ]

通知其他类调用方法

  其他类中先写入：[[ NSNotificationCenter defaultCenter ] addObserver : self

                                           selector:@selector( mytest: )

                                               name : @"reloadMessageData"

                                             object:nil];

- ( void ) mytest:(NSNotification*) notification

{

    id obj = [notification object]; //获取到传递的对象

} 

本类调用：[[ NSNotificationCenter defaultCenter ]
      postNotificationName : @"reloadMessageData"

                    object : @“ 传递的对象 " ];

跳转时退出当前页面：

        NSMutableArray *navigationArray = [[ NSMutableArray alloc ] initWithArray : self . navigationController . viewControllers ];
        [navigationArray removeObjectAtIndex : navigationArray. count - 1 ];  // You can pass your index here

        self.navigationController.viewControllers = navigationArray;

快捷加入动画效果

[ UIView animateWithDuration : 0.5 animations :^
     {
         CGRect tempFrame = self . infoView . frame ;
         tempFrame. origin . y += 40 ;
         self . infoView . frame = tempFrame;
        
         CGRect scrollFrame = self . myScrollView . frame ;
         scrollFrame. origin . y += 40 ;
         self . myScrollView . frame = scrollFrame;
     } completion :^( BOOL finished){

     }];

 //清空已有控件
    NSArray *gardenOptionsArray = self . gardenOptionsView . subviews ;
    for ( int i = 0 ;i<gardenOptionsArray. count ;i++){
        UIView *clearView = ( UIView *)gardenOptionsArray[i];
        [clearView removeFromSuperview ];

    }

//按钮图片位置

[ leftButton setImage :[ UIImage imageNamed : @"hh_ico_badge" ] forState : UIControlStateNormal ];

    leftButton.imageEdgeInsets = UIEdgeInsetsMake(0, -0, 0, 10);

UIView的显示位置：

将一个UIView显示在最前面只需要调用其父视图的 bringSubviewToFront（）方法。

将一个UIView层推送到背后只需要调用其父视图的 sendSubviewToBack（）方法。

[self.view insertSubview:girlView belowSubview:bottomView];//把girlView插入到bottomView后面

 [self.view insertSubview:girlView aboveSubview:bottomView];//把girlView插入到bottomView前面

 [ self .view insertSubview : girlView atIndex:0 ];//把girlView插入到0层

    

alpha 属性为0.0时视图完全透明，为1.0时视图完全不透明。

    hidden属性为YES时视图隐藏，否则不隐藏。

    这两种方式的效果是相同的。

    视图的alpha值会影响子视图的绘制，但是子视图的alpha值不变。

    子视图真正渲染出来的alpha值等于子视图的alpha乘父视图的alpha。

AppStore检查更新的json地址http://itunes.apple.com/lookup?id=%@&country=cn

1. // 如果要实现在应用里面跳到appstore的对应评论页面里面的话,只要将下面地址中App_ID替换成自己的id就可以了，其他的地方都不用管。  
2. // 如果要用Safari浏览器做实验的话可以将地址中的 "itms-apps://" 替换成"http://"即可。  
3. // 另外也可以尝试地改变其中几个参数的数值，可以看看结果。  
4.  // 注意： 必须使用真机调试，目前来说还是不支持模拟器运行的  
5.   
6.   
7.   
8. NSString * appstoreUrlString = @"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?mt=8&onlyLatestVersion=true&pageNumber=0&sortOrdering=1&type=Purple+Software&id=APP_ID";  
9.       
10.     NSURL * url = [NSURL URLWithString:appstoreUrlString];  
11.       
12.     if ([[UIApplication sharedApplication] canOpenURL:url])  
13.     {  
14.         [[UIApplication sharedApplication] openURL:url];  
15.     }  
16.     else  
17.     {  
18.         NSLog(@"can not open");  
19.     }  

检测ios系统版本：

[[[UIDevice currentDevice] systemVersion] floatValue]

企业安装包上传网址：fir.im

查看静态库信息，在终端下输入： lipo -info libUPPayPlugin.a