在此之前我们要先实现这两个代理协议
<UIImagePickerControllerDelegate,UINavigationControllerDelegate>，
然后要导入 MBProgressHUD 这个第三方。
/**
* 功能：头像上传
*/
// ------系统相册
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.editing = YES;
imagePicker.allowsEditing = YES;
imagePicker.delegate = self;
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet];
// ------拍照
UIAlertAction *PicAction = [UIAlertAction actionWithTitle:@"拍照" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
// ------判断相机是否可用
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:imagePicker animated:YES completion:nil];
}else {
MBProgressHUD *mbHUD = [[MBProgressHUD alloc] initWithView:self.view];
mbHUD.mode = MBProgressHUDModeText;
mbHUD.labelText = @"该相机不可使用";
[mbHUD show:YES];
[mbHUD hide:YES afterDelay:1];
[self.view addSubview:mbHUD];
}
}];
// ------从手机相册选择
UIAlertAction *PhotoAction = [UIAlertAction actionWithTitle:@"从手机相册选择" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:imagePicker animated:YES completion:nil];
}];
// ------取消
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];
[alertController addAction:PicAction];
[alertController addAction:PhotoAction];
[alertController addAction:cancelAction];
[self presentViewController:alertController animated:YES completion:nil];
}
#pragma mark - **************** UIImagePickerController
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info {
[self dismissViewControllerAnimated:YES completion:nil];
// ------原始图片
UIImage *OriginalImage = [info objectForKey:UIImagePickerControllerOriginalImage];
// ------编辑后的图片
// UIImage *editImage = [info objectForKey:UIImagePickerControllerEditedImage];
// ------上传操作
}
注意：这里的头像上传并不是指上传到服务器。
