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我想从相机或已经保存的图像保存到iphone照片库的图像。 在这里,我实现了一个代码,但我不能在按钮上实现它,而且它的崩溃。 我对iphone编程方面很新颖。请给一些帮助。图像保存按钮点击
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info:(id)sender{
UIImage *selectedImage;
NSURL *mediaUrl;
mediaUrl = (NSURL *)[info valueForKey:UIImagePickerControllerMediaURL];
if (mediaUrl == nil)
{
selectedImage = (UIImage *) [info valueForKey:UIImagePickerControllerEditedImage];
if (selectedImage == nil)
{
selectedImage = (UIImage *) [info valueForKey:UIImagePickerControllerOriginalImage];
NSLog(@"Original image picked.");
}
else
{
NSLog(@"Edited image picked.");
}
}
else
{
NSLog(@"Video picked. Not yet implemented.");
}
[picker dismissModalViewControllerAnimated:YES];
imageView.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
if((UIButton *) sender == savePhotoBtn) {
UIImageWriteToSavedPhotosAlbum(selectedImage, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);
}
}