iOS剪贴板

iOS系统剪贴板有两种：公共剪贴板和私有剪贴板。

• 公共剪贴板：用于不同APP之间传递数据

UIPasteboard *generalPasteboard = [UIPasteboard generalPasteboard]; //快捷创建方法
UIPasteboard *generalPasteboard = [UIPasteboard pasteboardWithName:UIPasteboardNameGeneral create:TRUE];

第一个参数UIPasteboardNameGeneral代表取的是公共剪贴板，也可以传任意字符串，则创建的是私有剪贴板；

第二个参数传YES or TRUE，表示如果当前没有该Name的剪贴板，就创建一个剪贴板。 

• 私有剪贴板：用于同一个Team的APP之间传递数据

UIPasteboard *uPasteboard = [UIPasteboard pasteboardWithUniqueName];    //快捷方式
UIPasteboard *pPasteboard = [UIPasteboard pasteboardWithName:@"privatePasteBorad" create:TRUE];

• 删除剪贴板

+ (void)removePasteboardWithName:(UIPasteboardName)pasteboardName;

系统公共剪贴板通过该接口是无法删除的。 

•  剪贴板数据类型

//单数据
@property(nullable,nonatomic,copy) NSString *string;
@property(nullable,nonatomic,copy) NSURL *URL;
@property(nullable,nonatomic,copy) UIImage *image;
@property(nullable,nonatomic,copy) UIColor *color;

//多数据
@property(nullable,nonatomic,copy) NSArray *strings;
@property(nullable,nonatomic,copy) NSArray *URLs;
@property(nullable,nonatomic,copy) NSArray *images;
@property(nullable,nonatomic,copy) NSArray *colors;

//是否存在该类型的数据（iOS10以上）
@property (nonatomic, readonly) BOOL hasStrings;
@property (nonatomic, readonly) BOOL hasURLs;
@property (nonatomic, readonly) BOOL hasImages;
@property (nonatomic, readonly) BOOL hasColors;

示例：复制文本到剪贴板

UIPasteboard *generalPasteboard = [UIPasteboard generalPasteboard];
generalPasteboard.string = "hello world";