iOS调用系统相册

1.点击按钮触发事件，调用系统的相册

#pragma mark 点击事件

- (void)onClickCarmerButton

{

UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"请选择照片的来源" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"从相册选择",@"拍照", nil];

[sheet showInView:self.view];

}

#pragma mark ActionSheetDelegate

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

{

UIImagePickerController *imageVC = [[UIImagePickerController alloc] init];

imageVC.delegate = self;

if (buttonIndex == 0) {

imageVC.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

}else if (buttonIndex == 1) {

imageVC.sourceType = UIImagePickerControllerSourceTypeCamera;

}else if (buttonIndex == 2) {

return;

}

[self presentViewController:imageVC animated:NO completion:nil];

}

#pragma mark - UIImagePickerController Delegate

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

UIImage *image = info[UIImagePickerControllerOriginalImage];

// [self uploadImage:image];

[self dismissViewControllerAnimated:YES completion:nil];

}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker

{

[self dismissViewControllerAnimated:YES completion:nil];

}

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated

{

// bug fixes: UIIMagePickerController使用中偷换StatusBar颜色的问题

if ([navigationController isKindOfClass:[UIImagePickerController class]] &&

((UIImagePickerController *)navigationController).sourceType == UIImagePickerControllerSourceTypePhotoLibrary) {

[[UIApplication sharedApplication] setStatusBarHidden:NO];

[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent animated:NO];

}

[[UINavigationBar appearance] setTintColor:[UIColor blackColor]];

// [navigationController.navigationBar setTintColor:[UIColor whiteColor]];

}

以上代码只是大体步骤