刚做了头像上传，下面把整个流程走一遍，希望共同学习，共同进步！
- 1.首先调用手机系统相册或者摄像头，然后获取到图片，最后把获取的图片上传到服务器！
- 2.应该在上传至服务器成功之后保存头像，并更新显示用户头像，这是整个大致结构！
下面我们看demo(本文用UIImagePickerController类上传头像)：
首先创建一个全局的UIImagePickerController对象 pickerController 然后初始化对象：
这时候要牵几个代理
<UIActionSheetDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate>
然后点击头像开始上传头像，我给头像加了一个手势，点击后跳转到手势方法：
#pragma mark ============手势方法==============
- (void)tapImageHead{
//初始化pickerController
pickerController = [[UIImagePickerController alloc] init];
pickerController.view.backgroundColor = [UIColor orangeColor];
pickerController.delegate = self;
pickerController.allowsEditing = YES;
NSLog(@"点击了头像要修改呦！");
UIActionSheet *actionSheet = [[UIActionSheet alloc]initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"拍照" otherButtonTitles:@"从相册中选择", nil];
actionSheet.frame = CGRectMake(0.f, 0.f, Screen_Width, Screen_Height);
actionSheet.actionSheetStyle = UIBarStyleBlackOpaque;
[actionSheet showInView:[UIApplication sharedApplication].keyWindow];
}
这时候会出来下面图片样式：
sheetAlert.png
点击任何一个按钮都会走他的代理方法如下：
#pragma mark ================UIActionSheetDelegate========
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (buttonIndex == 0) {//相机
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
NSLog(@"支持相机");
pickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
[self.viewController presentViewController:pickerController animated:YES completion:nil];
}else{
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"提示" message:@"请在设置-->隐私-->相机，中开启本应用的相机访问权限！！" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"我知道了", nil];
[alert show];
}
}else if (buttonIndex == 1){//图片库
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])
{
NSLog(@"支持图库");
pickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self.viewController presentViewController:pickerController animated:YES completion:nil];
}else{
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"提示" message:@"请在设置-->隐私-->照片，中开启本应用的相机访问权限！！" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"我知道了", nil];
[alert show];
}
}
}
#pragma mark =============UIImagePickerControllerDelegate=======
//用户点击取消退出picker时候调用
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
NSLog(@"%@",picker);
[picker dismissViewControllerAnimated:YES completion:^{
}];
}
//这里是用户选中图片(照相后的使用图片或者图库中选中图片)时调用
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSLog(@"%s,info == %@",__func__,info);
UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
[picker dismissViewControllerAnimated:YES completion:^{
}];
[MBProgressHUD showMessage:@"上传中..." toView:[UIApplication sharedApplication].keyWindow];
//照片上传
[self upDateHeadIcon:image];
}
以上就是获取头像(照相或者图库中)的整个流程，下面就是获取到图片后的上传过程，这个要和后台定义好，具体流程见下图：
interfaceHeaderImage2.png
注：红色箭头是一个参数和后台定好的！
注：红色箭头是一个参数和后台定好的！
注：红色箭头是一个参数和后台定好的！
在iOS8.2系统上发现一个bug，就是摄像头第二次调用时，打开是黑屏，没错就是黑屏，然后我测了微信，京东钱包等都一样是黑屏！是黑屏！是黑屏！
然后测试了一下iOS9系统，都是正常的
网上查stackOverflow中说有解决方法，然并卵！
这个我依然没有解决,哪位解决了可以和我说下
多图上传：
整体和头像上传没有什么区别，只是把接口改了一下下面上代码：
- (void)buttonActionPulish{
//开始发帖
/*
uid true Long 用户标识
tid false Long 主题帖子标示
cid False Long 回复标示
comment true String 回复内容
attachment true byte[] 附件
_selectedPhotos 为图片数组，是image对象数组
*/
//内容判断
if (self.reportStateTextView.text.length == 0 ){
[MBProgressHUD showError:@"内容不能为空"];
return;
}
//上传用户多图接口
NSString *url = [NSString stringWithFormat:@"%@%@",APP_MGT,AZS_BBS_REPLY_BBS];
NSMutableDictionary *params = [NSMutableDictionary dictionary];
NSString *stringUid = [AZSPlistFile readObjectDictionaryFromePlist:USERINFO][@"uid"];
[params setValue:stringUid forKey:@"uid"];
[params setObject:self.tID forKey:@"tid"];//主题帖子标示
if (self.cID != nil) {
[params setObject:self.cID forKey:@"cid"];//回复贴标识
}
[params setObject:self.reportStateTextView.text forKey:@"comment"];//内容
IMP_BLOCK_SELF(AZSCommunityReplyPostVC);
[MBProgressHUD showMessage:@"回复中..." toView:self.navigationController.view];
[AZSDataNetwork uploadWithURL:url params:params fileArray:_selectedPhotos name:@"attachment" fileName:@"fff.jpg" mimeType:@"image/jpeg/png" progress:^(NSProgress *progress) {
NSLog(@"上传进度%@",progress);
} success:^(NSURLSessionDataTask *task, id responseObject) {
NSLog(@"上传成功了：%@",responseObject);
[MBProgressHUD showSuccess:@"回复成功"];
[MBProgressHUD hideAllHUDsForView: block_self.navigationController.view animated:YES];
[block_self.navigationController popViewControllerAnimated:YES];
if (block_self.delegate && [block_self.delegate respondsToSelector:@selector(replySuccess)]) {
[block_self.delegate replySuccess];
}
} fail:^(NSURLSessionDataTask *task, NSError *error) {
NSLog(@"上传失败了：%@",error);
[MBProgressHUD showError:@"网络错误"];
[MBProgressHUD hideHUDForView: block_self.navigationController.view animated:YES];
}];
}
针对部分网友提问我下面公开我网络上传图片的具体处理
多图上传.png.png
