SBScreenShotter类屏幕截图实验（cycript）

iOS

相关头文件：
@interface SBScreenShotter : NSObject {
    BOOL _writingScreenshot;
}
@property(assign) BOOL writingScreenshot;
+(id)sharedInstance;
-(void)finishedWritingScreenshot:(id)screenshot didFinishSavingWithError:(id)error context:(void*)context;
-(void)saveScreenshot:(BOOL)screenshot; // BOOL 参数决定是否闪光
@end

实验：
cy# var screenShotter = [SBScreenShotter sharedInstance ]
#"<SBScreenShotter: 0x170c2f480>"
cy# [screenShotter saveScreenshot: NO]
cy# [screenShotter saveScreenshot: YES]

// 上面模拟了 home+电源键的屏幕截图功能