iOS shaking a screenshot of the screen code

#import "ViewController.h"

@interface viewcontroller ()

@end

@implementation Viewcontroller

-(void) viewdidload {

[Super viewdidload];

//1. Add a View

UIView *greenview=[[UIView alloc]init];

Greenview. Frame= CGRectMake (+, +, + );

Greenview. backgroundcolor=[uicolor greencolor];

[self. View addsubview: Greenview];

// Set First Response event ( required )

[self becomefirstresponder];

}

-(void) Motionbegan: (uieventsubtype) motion withevent: (uievent *) event

{

if (motion==uieventsubtypemotionshake) {

// screenshot

[self snapshot];

}

}

Screen Cutting

-(void) Snapshot

{

// Open Context

Uigraphicsbeginimagecontext(self. View. Bounds. Size);

// Get context

cgcontextref context=uigraphicsgetcurrentcontext();

[self. View. Layer Renderincontext: Context];

UIImage *image=uigraphicsgetimagefromcurrentimagecontext();

Uigraphicsendimagecontext();

// save to album

uiimagewritetosavedphotosalbum(image, self, @selector(image:didfinishsavingwitherror: ContextInfo:), nil);

}

-(void) Image: (UIImage *) image didfinishsavingwitherror: (nserror *) Error ContextInfo :(void *) contextinfo

{

if (!error) {

NSLog(@ "save Success");

}

}

@end

iOS shaking a screenshot of the screen code