IOS上传照片(自己的代码整理了一下)

IOS上传照片源代码

UploadPhotoViewController.h 头文件

#import 
#import "MBProgressHUD.h"
@interface UploadPhotoViewController :UIViewController{
    MBProgressHUD *HUD;
}
-(void) snapImage;//拍照
-(void) pickImage;//从相册里找
- (UIImage *)scaleToSize:(UIImage *)img size:(CGSize)size;//把图缩放到合适的尽寸
@end

UploadPhotoViewController.m 源文件

#import "UploadPhotoViewController.h"
#import"ASIFormDataRequest.h"//ASIRequest用来上传图片
#import"HJManagedImageV.h"  //HJManagedImageV是图片缓存类，可以用其它异步加载图片类取代
#import "JSON.h"
#define UPLOAD_URL @"http://localhost/upload.php"//上传地址
@implementation UploadPhotoViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [superinitWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)didReceiveMemoryWarning
{
    // Releases the view if it doesn't have a superview.
    [superdidReceiveMemoryWarning];
    
    // Release any cached data, images, etc that aren't in use.
}

#pragma mark - View lifecycle

- (void)viewDidLoad
{
    [superviewDidLoad];
    // Do any additional setup after loading the view from its nib.
    self.title =@"上代图片例子";
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    HJManagedImageV* mi = [[[HJManagedImageValloc] initWithFrame:CGRectMake(20,20,280,280)]autorelease];
    mi.url = [NSURL URLWithString:@"图片地址"]];
    [mi showLoadingWheel];
    mi.tag = 777 ;
    [self.scrollView addSubview:mi];
    MyAppDelegate *appDelegate = (MyAppDelegate *)[[UIApplication sharedApplication] delegate];
    [mi setCallbackOnImageTap:self method:@selector(uploadPortrait:)];//点击图片，执行上传图片操作
    [appDelegate.objMan manage:mi];//加载图片
}

- (void)viewDidUnload
{
    [superviewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (void)dealloc {
    [super dealloc];
}

//上传图片操作开始，选择图片的来源
-(void)uploadPortrait:(id)sender{
    UIActionSheet *menu = [[UIActionSheetalloc]
                           initWithTitle: @"更改图片"
                           delegate:self
                           cancelButtonTitle:@"取消"
                           destructiveButtonTitle:nil
                           otherButtonTitles:@"拍照",@"从相册上传",nil];
    menu.actionSheetStyle =UIActionSheetStyleBlackTranslucent;
    [menu showInView:self.navigationController.view];
}
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if(buttonIndex == 0){
         [self snapImage];
    }else if(buttonIndex ==1){
        [self pickImage];
    }
    [actionSheet release];
}

- (UIImage *)scaleToSize:(UIImage *)img size:(CGSize)size{  
    // 创建一个bitmap的context  
    // 并把它设置成为当前正在使用的context  
    UIGraphicsBeginImageContext(size);  
    // 绘制改变大小的图片  
    [img drawInRect:CGRectMake(0,0, size.width, size.height)];  
    // 从当前context中创建一个改变大小后的图片  
    UIImage* scaledImage =UIGraphicsGetImageFromCurrentImageContext();  
    // 使当前的context出堆栈  
    UIGraphicsEndImageContext();  
    //返回新的改变大小后的图片  
    return scaledImage;  
}
-(void)uploadPortraitTask:(NSDictionary *)info{
    // Do something usefull in here instead of sleeping ...
    NSURL *URL = [NSURLURLWithString:UPLOAD_URL];
    ASIFormDataRequest *Request = [ASIFormDataRequestrequestWithURL:URL];
    [Request setRequestMethod:@"POST"];  
    [Request addRequestHeader:@"Content-Type"value:@"application/json"];
    [Request setTimeOutSeconds:60];

    //[Request setPostValue:auth forKey:@"auth"];
    UIImage *img = [selfscaleToSize:[infoobjectForKey:@"UIImagePickerControllerOriginalImage"]size:CGSizeMake(300,300)];
    [Request setData:UIImagePNGRepresentation(img)forKey:@"file"];
    
    [Request setDelegate:self];
    [Request setCompletionBlock:^{        
        NSString *responseString = [Request responseString];
        //NSLog(@"Response: %@", responseString);
        NSDictionary *info = [responseString JSONValue];
        NSNumber *status = [info objectForKey:@"status"];
        if([status intValue]==1){
            HJManagedImageV* mi = (HJManagedImageV *)[self.viewviewWithTag:777];
            //set the URL that we want the managed image view to load
            [mi clear];
            mi.url = [NSURLURLWithString:[info objectForKey:@"filePath"]];
            [mi showLoadingWheel];
            mi.tag = 777 ;
            IBMEventAppDelegate *appDelegate = (IBMEventAppDelegate *)[[UIApplicationsharedApplication] delegate];
            //[mi setCallbackOnImageTap:self method:@selector(uploadPortrait:)];
            [appDelegate.objMan manage:mi];
            [appDelegate loadLoginInfoData];
            UIAlertView *av=[[[UIAlertViewalloc] initWithTitle:nilmessage:@"图片上传成功!" delegate:nilcancelButtonTitle:@"OK"otherButtonTitles:nil]autorelease];
            [av show];
            
        }else if([statusintValue]==-1){
            UIAlertView *av=[[[UIAlertViewalloc] initWithTitle:nilmessage:[info objectForKey:@"msg"]delegate:nilcancelButtonTitle:@"OK"otherButtonTitles:nil]autorelease];
            [av show];
        }else{
            UIAlertView *av=[[[UIAlertViewalloc] initWithTitle:nilmessage:[info objectForKey:@"msg"]delegate:nilcancelButtonTitle:@"OK"otherButtonTitles:nil]autorelease];
            [av show];
        }
        [MBProgressHUDhideHUDForView:self.navigationController.viewanimated:YES]; 
    }];
    [Request setFailedBlock:^{
        NSError *error = [Request error];                                                                                           
        NSLog(@"Error: %@,%@", error.localizedDescription,Request.url);
    }];
    [Request startSynchronous];
}
- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo; 
{
if (!error){
        UIAlertView *av=[[[UIAlertViewalloc] initWithTitle:nilmessage:@"Image written to photo album"delegate:nilcancelButtonTitle:@"OK"otherButtonTitles:nil]autorelease];
        [av show];
    }else{
        UIAlertView *av=[[[UIAlertViewalloc] initWithTitle:nilmessage:[NSStringstringWithFormat:@"Error writing to photo album: %@",[errorlocalizedDescription]] delegate:nilcancelButtonTitle:@"OK"otherButtonTitles:nil]autorelease];
        [av show];
    }

}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    HUD = [MBProgressHUDshowHUDAddedTo:self.navigationController.viewanimated:YES];
    HUD.dimBackground =YES;
    HUD.delegate =self;
    HUD.labelText =@"请稍等";
HUD.square =YES;
    [HUDshowWhileExecuting:@selector(uploadPortraitTask:)onTarget:selfwithObject:info animated:YES];
//SETIMAGE([info objectForKey:@"UIImagePickerControllerOriginalImage"]);
[selfdismissModalViewControllerAnimated:YES];
[picker release];
}

// Provide 2.x compliance
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
{
NSDictionary *dict = [NSDictionarydictionaryWithObject:imageforKey:@"UIImagePickerControllerOriginalImage"];
[selfimagePickerController:picker didFinishPickingMediaWithInfo:dict];
}

// Optional but "expected" dismiss
/*
 - (void) imagePickerControllerDidCancel: 
 (UIImagePickerController *)picker
 {
 [self dismissModalViewControllerAnimated:YES];
 [picker release];
 }
 */

- (void) pickImage
{
UIImagePickerController *ipc = [[UIImagePickerControlleralloc] init];
ipc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
ipc.delegate =self;
ipc.allowsEditing =NO;
[selfpresentModalViewController:ipc animated:YES];
}

- (void) snapImage
{
UIImagePickerController *ipc = [[UIImagePickerControlleralloc] init];
ipc.sourceType = UIImagePickerControllerSourceTypeCamera;
ipc.delegate =self;
ipc.allowsEditing =NO;
[selfpresentModalViewController:ipc animated:YES];
}