ios 如何从相册加载照片并将其存储到应用程序项目中？
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How to load photos from photo gallery and store it into application project?
提问by Lloydworth
I'm working on an application that is almost the same as the sample codes i found here. But the method i want to do is different from the sample codes.
Link: PhotoLocations
我正在开发一个与我在此处找到的示例代码几乎相同的应用程序。但是我想做的方法与示例代码不同。
链接：照片位置
The first screen will have an ImageView and 2 buttons (Choose Photo, Confirm). When the 'Choose Photo' button is tapped, it will navigate to another screen which retrieves photos from my iPad's photo gallery. When a photo is chosen, it will dismiss the current screen and return to the first screen displaying the chosen photo on the ImageView.
第一个屏幕将有一个 ImageView 和 2 个按钮（选择照片，确认）。当点击“选择照片”按钮时，它将导航到另一个屏幕，该屏幕从我的 iPad 的照片库中检索照片。选择照片时，它将忽略当前屏幕并返回显示ImageView上所选照片的第一个屏幕。
When the 'Confirm' button is tapped, the photo will be stored into my application's project (e.g. /resources/images/photo.jpg).
当“确认”按钮被点击时，照片将被存储到我的应用程序的项目中（例如 /resources/images/photo.jpg）。
May i know how can i do this?
我可以知道我该怎么做吗？
回答by Ankit Srivastava
This will take you to the image gallery and you can select the image.
这将带您进入图像库，您可以选择图像。
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc]init];
imagePickerController.delegate = self;
imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:imagePickerController animated:YES completion:nil];
this will help you select the image
这将帮助您选择图像
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingImage:(UIImage *)image
editingInfo:(NSDictionary *)editingInfo
{
// Dismiss the image selection, hide the picker and
//show the image view with the picked image
[picker dismissViewControllerAnimated:YES completion:nil];
//UIImage *newImage = image;
}
And then you can store this image to the documents directory...
然后您可以将此图像存储到文档目录...
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:@"savedImage.png"];
UIImage *image = imageView.image; // imageView is my image from camera
NSData *imageData = UIImagePNGRepresentation(image);
[imageData writeToFile:savedImagePath atomically:NO];
For clicking the image yourself use this
要自己单击图像，请使用此
- (IBAction) takePhoto:(id) sender
{
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.delegate = self;
imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentModalViewController:imagePickerController animated:YES];
}
回答by BooleanBoy
UIImagePickerController *cardPicker = [[UIImagePickerController alloc]init];
cardPicker.allowsEditing=YES;
cardPicker.delegate=self;
cardPicker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
[self presentModalViewController:appDelegate.cardPicker animated:YES];
[cardPicker release];
And this delegate method will return the image u select from the album
这个委托方法将返回你从相册中选择的图像
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)img editingInfo:(NSDictionary *)editInfo
{
[[picker parentViewController] dismissModalViewControllerAnimated:YES];
noImage.image=img;
}
回答by Purushothaman
- (IBAction)UploadPhoto:(id)sender {
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Please Select Your Option"delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"Camera", @"Gallery",nil];
[actionSheet showInView:self.view];
UITableViewCell *clickedCell = (UITableViewCell *)[[sender superview] superview];
NSIndexPath *clickedButtonPath = [jobstable indexPathForCell:clickedCell];
isSectionIndex = clickedButtonPath.section;
isRowIndex = clickedButtonPath.row;
}
-(void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex{
NSLog(@"From didDismissWithButtonIndex - Selected Option: %@", [actionSheet buttonTitleAtIndex:buttonIndex]);
NSString*image=[actionSheet buttonTitleAtIndex:buttonIndex];
if ([[actionSheet buttonTitleAtIndex:buttonIndex] isEqualToString:@"Camera"]) {
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
UIAlertView* alert = [[UIAlertView alloc] initWithTitle:nil message:@"Device Camera Is Not Working" delegate:nil cancelButtonTitle:nil otherButtonTitles:@"OK", nil];
[alert show];
return;
}
else{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:NULL];
}
}
else if ([[actionSheet buttonTitleAtIndex:buttonIndex] isEqualToString:@"Gallery"]){
UIImagePickerController *pickerView = [[UIImagePickerController alloc] init];
pickerView.allowsEditing = YES;
pickerView.delegate = self;
[pickerView setSourceType:UIImagePickerControllerSourceTypeSavedPhotosAlbum];
[self presentViewController:pickerView animated:YES completion:nil];
}
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
UIImage* orginalImage = [info objectForKey:UIImagePickerControllerOriginalImage];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:isRowIndex inSection:isSectionIndex];
UITableViewCell *cell = [jobstable cellForRowAtIndexPath:indexPath];
UIImageView *tableIMAGE=(UIImageView *)[cell.contentView viewWithTag:19];
tableIMAGE.image=orginalImage;
answersARRAY[indexPath.row] = [NSString stringWithFormat:@"-1,%@,%@,",answersARRAY[indexPath.row],imageStris];
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissViewControllerAnimated:YES completion:NULL];
}