camera

camera

- (IBAction)handleUploadButton:(id)sender {
    if ([UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear] == NO
        && [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront] == NO) {
        UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:CustomLocalizedString(@"alert_cancel", nil) destructiveButtonTitle:nil otherButtonTitles:CustomLocalizedString(@"picker_photo", nil), nil];
        [sheet showFromRect:((UIButton *)sender).frame inView:self.view animated:YES];
    } else {
        UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:CustomLocalizedString(@"alert_cancel", nil) destructiveButtonTitle:CustomLocalizedString(@"picker_camera", nil) otherButtonTitles:CustomLocalizedString(@"picker_photo", nil), nil];
        [sheet showFromRect:((UIButton *)sender).frame inView:self.view animated:YES];
    }
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == actionSheet.cancelButtonIndex) {
        return;
    }
    
    if (buttonIndex == actionSheet.destructiveButtonIndex) {
        // 拍照
        [self setupImagePickerWithType:UIImagePickerControllerSourceTypeCamera];
    } else if (buttonIndex == actionSheet.firstOtherButtonIndex) {
        [self setupImagePickerWithType:UIImagePickerControllerSourceTypePhotoLibrary];
    }
}

- (void)setupImagePickerWithType:(UIImagePickerControllerSourceType)type
{
    if (self.imagePickerController == nil) {
        self.imagePickerController = [[UIImagePickerController alloc] init];
    }
    
    self.imagePickerController.sourceType = type;
    self.imagePickerController.allowsEditing = NO;
    self.imagePickerController.delegate = self;
    self.imagePickerController.modalPresentationStyle = UIModalPresentationFullScreen;

    if (type == UIImagePickerControllerSourceTypeCamera) {
        [self presentViewController:self.imagePickerController animated:YES completion:nil];
    } else {
        if (isiPad) {
            if (self.imagePickerPopoverController == nil) {
                self.imagePickerPopoverController = [[UIPopoverController alloc] initWithContentViewController:self.imagePickerController];
            } else {
                self.imagePickerPopoverController.contentViewController = self.imagePickerController;
            }
            
            [self.imagePickerPopoverController presentPopoverFromRect:self.uploadButton.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];
        } else {
            [self presentViewController:self.imagePickerController animated:YES completion:nil];
        }
    }
}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    __block UIImage *image = nil;
    
    NSURL *referenceURL = [info objectForKey:UIImagePickerControllerReferenceURL];
    if (referenceURL) {
        //从图库选择
        ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
        [library assetForURL:referenceURL resultBlock:^(ALAsset *asset) {
             image = [UIImage imageWithCGImage:[[asset defaultRepresentation] fullScreenImage]];
            [self.uploadButton setImage:image forState:UIControlStateNormal];
            
            if (isiPad) {
                [self.imagePickerPopoverController dismissPopoverAnimated:YES];
            }
            
            [self uploadMapPicture];
         } failureBlock:^(NSError *error) {
             // error handling
         }];
    } else {
        // 拍照
        image = [info objectForKey:UIImagePickerControllerOriginalImage];
        [self.uploadButton setImage:image forState:UIControlStateNormal];
        
        if (isiPad) {
            [self.imagePickerPopoverController dismissPopoverAnimated:YES];
        }
        
        [self uploadMapPicture];
    }
    
    [picker dismissViewControllerAnimated:YES completion:nil];
}