iPhoneiPad全屏截图与区域截图的几种方法

概述截取本区域(self.view): 1 2 3 4 5 UIGraphicsBeginImageContext (CGSizeMake (self.view.frame.size.width, self.view.frame.size.height ) );     [self.view.layer renderInContext :UIGraphicsGetCurrentContext ( )

截取本区域(self.vIEw):

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UIGraphicsBeginImageContext (CGSizeMake (self.vIEw.frame.size.wIDth,self.vIEw.frame.size.height ) );     [self.vIEw.layer renderInContext :UIGraphicsGetCurrentContext ( ) ];     UIImage *vIEwImage = UIGraphicsGetimageFromCurrentimageContext ( );     UIGraphicsEndImageContext ( );     UIImageWritetoSavedPhotosAlbum (vIEwImage, nil,nil,nil );

全屏截图:

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UIWindow *screenWindow = [ [UIApplication sharedApplication ] keyWindow ];     UIGraphicsBeginImageContext (screenWindow.frame.size );     [screenWindow.layer renderInContext :UIGraphicsGetCurrentContext ( ) ];     UIImage *vIEwImage = UIGraphicsGetimageFromCurrentimageContext ( );     UIGraphicsEndImageContext ( );     UIImageWritetoSavedPhotosAlbum (vIEwImage,nil );

以上2种方法真机和模拟器都可以运行.在photo.app里可以看到照片

苹果最新开放的接口函数(全屏截图),已经有人试过了,不会reject:

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CGImageRef UIGetScreenImage ( );     CGImageRef img = UIGetScreenImage ( );     UIImage * scImage = [UIImage imageWithCGImage :img ];     UIImageWritetoSavedPhotosAlbum (scImage,nil ); It still works,but only on -device (not in simulator ) .

截图另存为指定名字:

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UIWindow *screenWindow = [ [UIApplication sharedApplication ] keyWindow ]; UIGraphicsBeginImageContext (screenWindow.frame.size ); [screenWindow.layer renderInContext :UIGraphicsGetCurrentContext ( ) ]; UIImage *screenshot = UIGraphicsGetimageFromCurrentimageContext ( ); UIGraphicsEndImageContext ( ); NSData *screenshotPNG = UIImagePNGRepresentation (screenshot ); NSArray *paths = NSSearchPathForDirectorIEsInDomains (NSdocumentDirectory,NSUserDomainMask,YES ); NSString *documentsDirectory = [paths objectAtIndex : 0 ]; NSError *error = nil; [screenshotPNG writetofile : [documentsDirectory stringByAppendingPathComponent : @ "screenshot.png" ] options :NSAtomicWrite error :&error ];

部分代码来自:http://stackoverflow.com/questions/692464/emailing-full-screen-of-iphone-app

没有ipad真机截图发布app的可以用此方法做个透明按钮点,哈哈.
截取本区域(self.vIEw):

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UIGraphicsBeginImageContext (CGSizeMake (self.vIEw.frame.size.wIDth,nil );

全屏截图:

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UIWindow *screenWindow = [[UIApplication sharedApplication] keyWindow];     UIGraphicsBeginImageContext(screenWindow.frame.size);     [screenWindow.layer renderInContext:UIGraphicsGetCurrentContext()];     UIImage *vIEwImage = UIGraphicsGetimageFromCurrentimageContext();     UIGraphicsEndImageContext();     UIImageWritetoSavedPhotosAlbum(vIEwImage,nil,nil);

以上2种方法真机和模拟器都可以运行.在photo.app里可以看到照片

苹果最新开放的接口函数(全屏截图),but only on -device (not in simulator ) .

截图另存为指定名字:

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UIWindow *screenWindow = [ [UIApplication sharedApplication ] keyWindow ]; UIGraphicsBeginImageContext (screenWindow.frame.size ); [screenWindow.layer renderInContext :UIGraphicsGetCurrentContext ( ) ]; UIImage *screenshot = UIGraphicsGetimageFromCurrentimageContext ( ); UIGraphicsEndImageContext ( ); NSData *screenshotPNG = UIImagePNGRepresentation (screenshot ); NSArray *paths = NSSearchPathForDirectorIEsInDomains (NSdocumentDirectory,YES ); NSString *documentsDirectory = [paths objectAtIndex : 0 ]; NSError *error = nil; [screenshotPNG writetofile : [documentsDirectory stringByAppendingPathComponent : @ "screenshot.png" ] options :NSAtomicWrite error :&error ];

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