iOS iPhone/iPad全屏截圖與區域截圖的幾種方法_技術成長筆記_新浪部落格

截取本區域(self.view):

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);

全屏截圖:

UIWindow *screenWindow = [[UIApplication sharedApplication] keyWindow];

    UIGraphicsBeginImageContext(screenWindow.frame.size);

    [screenWindow.layer renderInContext:UIGraphicsGetCurrentContext()];

    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil);

以上2種方法真機和模拟器都可以運作.在photo.app裡可以看到照片

蘋果最新開放的接口函數(全屏截圖),已經有人試過了,不會reject:

CGImageRef UIGetScreenImage(); 

    CGImageRef img = UIGetScreenImage();

    UIImage* scImage=[UIImage imageWithCGImage:img];

    UIImageWriteToSavedPhotosAlbum(scImage, nil, nil, nil);

It still works,but only on-device (not in simulator) .

截圖另存為指定名字:

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];

部分代碼來自:http://stackoverflow.com/questions/692464/emailing-full-screen-of-iphone-app

沒有ipad真機截圖釋出app的可以用此方法做個透明按鈕點,哈哈.

截取本區域(self.view):

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);

全屏截圖:

UIWindow *screenWindow = [[UIApplication sharedApplication] keyWindow];

    UIGraphicsBeginImageContext(screenWindow.frame.size);

    [screenWindow.layer renderInContext:UIGraphicsGetCurrentContext()];

    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil);

以上2種方法真機和模拟器都可以運作.在photo.app裡可以看到照片

蘋果最新開放的接口函數(全屏截圖),已經有人試過了,不會reject:

CGImageRef UIGetScreenImage(); 

    CGImageRef img = UIGetScreenImage();

    UIImage* scImage=[UIImage imageWithCGImage:img];

    UIImageWriteToSavedPhotosAlbum(scImage, nil, nil, nil);

It still works,but only on-device (not in simulator) .

截圖另存為指定名字:

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];