我们在写代码的时候经常会将头像进行上传服务器，上传头像图片我试过两种方式
一种方式就是使用base64字符串上传图片，这种形式我个人认为比较适合上传图片数量比较少的，比如上传头像，上传图片数量多的话，速度会慢些
另一种方式是使用二进制流进行上传图片，这种方式上传图片少或者数量多都没关系，速度也很快
demo地址：http://download.csdn.net/detail/tuwanli125/9340205
demo地址: https://github.com/tuwanli/PictureHead
选择头像效果：
程序如下：
ViewController.h
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#import <UIKit/UIKit.h>@interface ViewController : UIViewController@property (weak, nonatomic) IBOutletUIImageView *headIcon;- (IBAction)changeIconAction:(UITapGestureRecognizer *)sender;@end |
ViewController.m
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#import "ViewController.h"#import "AFHTTPRequestOperationManager.h"@interface ViewController ()<UIImagePickerControllerDelegate,UINavigationControllerDelegate,UIActionSheetDelegate>{ UIImagePickerController *pickerController; AFHTTPRequestOperationManager *manager;}@end@implementation ViewController- (void)viewDidLoad { [superviewDidLoad]; //初始化头像控件 [selfinitHeadIcon]; //初始化pickController [selfcreateData];}- (void)initHeadIcon{ self.view.backgroundColor = [UIColorlightGrayColor]; self.headIcon.layer.cornerRadius = self.headIcon.frame.size.height/2; self.headIcon.clipsToBounds =YES; self.headIcon.layer.borderColor = [UIColor whiteColor].CGColor; self.headIcon.layer.borderWidth = 3;}- (void)createData{ //初始化pickerController pickerController = [[UIImagePickerControlleralloc]init]; pickerController.view.backgroundColor = [UIColororangeColor]; pickerController.delegate =self; pickerController.allowsEditing =YES;}- (IBAction)changeIconAction:(UITapGestureRecognizer *)sender { UIActionSheet *actionSheet = [[UIActionSheetalloc]initWithTitle:@"选择头像"delegate:selfcancelButtonTitle:@"取消"destructiveButtonTitle:nilotherButtonTitles:@"拍照",@"相册",@"图库",nil]; [actionSheet showInView:[UIApplicationsharedApplication].keyWindow];}- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{ if (buttonIndex ==0) {//相机 if([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) { NSLog(@"支持相机"); [selfmakePhoto]; }else{ UIAlertView *alert = [[UIAlertViewalloc]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:selfcancelButtonTitle:@"取消"otherButtonTitles:@"我知道了",nil]; [alertshow]; } }elseif (buttonIndex ==1){//相片 if([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) { NSLog(@"支持相册"); [selfchoosePicture]; }else{ UIAlertView *alert = [[UIAlertViewalloc]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:selfcancelButtonTitle:@"取消"otherButtonTitles:@"我知道了",nil]; [alertshow]; } }elseif (buttonIndex ==2){//图册 if([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum]) { NSLog(@"支持图库"); [selfpictureLibrary];// [self presentViewController:picker animated:YES completion:nil]; }else{ UIAlertView *alert = [[UIAlertViewalloc]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:selfcancelButtonTitle:@"取消"otherButtonTitles:@"我知道了",nil]; [alertshow]; } }elseif (buttonIndex ==3){ }}//跳转到imagePicker里- (void)makePhoto{ pickerController.sourceType =UIImagePickerControllerSourceTypeCamera; [selfpresentViewController:pickerControlleranimated:YEScompletion:nil];}//跳转到相册- (void)choosePicture{ pickerController.sourceType =UIImagePickerControllerSourceTypeSavedPhotosAlbum; [selfpresentViewController:pickerControlleranimated:YEScompletion:nil];}//跳转图库- (void)pictureLibrary{ pickerController.sourceType =UIImagePickerControllerSourceTypePhotoLibrary; [selfpresentViewController:pickerControlleranimated:YEScompletion:nil];}//用户取消退出picker时候调用- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{ NSLog(@"%@",picker); [pickerControllerdismissViewControllerAnimated:YEScompletion:^{ }];}//用户选中图片之后的回调- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{ NSLog(@"%s,info == %@",__func__,info); UIImage *userImage = [selffixOrientation:[infoobjectForKey:@"UIImagePickerControllerOriginalImage"]]; userImage = [selfscaleImage:userImagetoScale:0.3]; //保存图片// [self saveImage:userImage name:@"某个特定标示"]; [pickerControllerdismissViewControllerAnimated:YEScompletion:^{ }]; [self.headIconsetImage:userImage]; self.headIcon.contentMode = UIViewContentModeScaleAspectFill; self.headIcon.clipsToBounds =YES; //照片上传 [selfupDateHeadIcon:userImage];}- (void)upDateHeadIcon:(UIImage *)photo{ //两种方式上传头像 /*方式一：使用NSData数据流传图片*/ NSString *imageURl =@""; manager.responseSerializer = [AFHTTPResponseSerializerserializer]; manager.responseSerializer.acceptableContentTypes =[NSSetsetWithObject:@"text/html"]; [managerPOST:imageURlparameters:nilconstructingBodyWithBlock:^(id<AFMultipartFormData> formData) { [formData appendPartWithFileData:UIImageJPEGRepresentation(photo,1.0)name:@"text"fileName:@"test.jpg"mimeType:@"image/jpg"]; }success:^(AFHTTPRequestOperation *operation,id responseObject) { }failure:^(AFHTTPRequestOperation *operation,NSError *error) { }]; /*方式二：使用Base64字符串传图片*/ NSData *data =UIImageJPEGRepresentation(photo,1.0); NSString *pictureDataString=[database64Encoding]; NSDictionary * dic =@{@"verbId":@"modifyUserInfo",@"deviceType":@"ios",@"userId":@"",@"photo":pictureDataString,@"mobileTel":@""}; [managerPOST:@""parameters:dic success:^(AFHTTPRequestOperation *operation,idresponseObject) { if ([[responseObjectobjectForKey:@"flag"]intValue] == 0) { }else{ } } failure:^(AFHTTPRequestOperation *operation,NSError *error) { }];}//保存照片到沙盒路径(保存)- (void)saveImage:(UIImage *)image name:(NSString *)iconName{ NSArray *paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES); //写入文件 NSString *icomImage = iconName; NSString *filePath = [[pathsobjectAtIndex:0]stringByAppendingPathComponent:[NSStringstringWithFormat:@"%@.png", icomImage]]; // 保存文件的名称 // [[self getDataByImage:image] writeToFile:filePath atomically:YES]; [UIImagePNGRepresentation(image)writeToFile: filePath atomically:YES];}//缩放图片- (UIImage *)scaleImage:(UIImage *)image toScale:(float)scaleSize{ UIGraphicsBeginImageContext(CGSizeMake(image.size.width*scaleSize,image.size.height*scaleSize)); [imagedrawInRect:CGRectMake(0,0, image.size.width * scaleSize, image.size.height *scaleSize)]; UIImage *scaledImage =UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); NSLog(@"%@",NSStringFromCGSize(scaledImage.size)); return scaledImage;}//修正照片方向(手机转90度方向拍照)- (UIImage *)fixOrientation:(UIImage *)aImage { // No-op if the orientation is already correct if (aImage.imageOrientation ==UIImageOrientationUp) return aImage; CGAffineTransform transform =CGAffineTransformIdentity; switch (aImage.imageOrientation) { caseUIImageOrientationDown: caseUIImageOrientationDownMirrored: transform =CGAffineTransformTranslate(transform, aImage.size.width, aImage.size.height); transform =CGAffineTransformRotate(transform,M_PI); break; caseUIImageOrientationLeft: caseUIImageOrientationLeftMirrored: transform =CGAffineTransformTranslate(transform, aImage.size.width,0); transform =CGAffineTransformRotate(transform,M_PI_2); break; caseUIImageOrientationRight: caseUIImageOrientationRightMirrored: transform =CGAffineTransformTranslate(transform,0, aImage.size.height); transform =CGAffineTransformRotate(transform, -M_PI_2); break; default: break; } switch (aImage.imageOrientation) { caseUIImageOrientationUpMirrored: caseUIImageOrientationDownMirrored: transform =CGAffineTransformTranslate(transform, aImage.size.width,0); transform =CGAffineTransformScale(transform, -1,1); break; caseUIImageOrientationLeftMirrored: caseUIImageOrientationRightMirrored: transform =CGAffineTransformTranslate(transform, aImage.size.height,0); transform =CGAffineTransformScale(transform, -1,1); break; default: break; } // Now we draw the underlying CGImage into a new context, applying the transform // calculated above. CGContextRef ctx =CGBitmapContextCreate(NULL, aImage.size.width, aImage.size.height, CGImageGetBitsPerComponent(aImage.CGImage),0, CGImageGetColorSpace(aImage.CGImage), CGImageGetBitmapInfo(aImage.CGImage)); CGContextConcatCTM(ctx, transform); switch (aImage.imageOrientation) { caseUIImageOrientationLeft: caseUIImageOrientationLeftMirrored: caseUIImageOrientationRight: caseUIImageOrientationRightMirrored: CGContextDrawImage(ctx,CGRectMake(0,0,aImage.size.height,aImage.size.width), aImage.CGImage); break; default: CGContextDrawImage(ctx,CGRectMake(0,0,aImage.size.width,aImage.size.height), aImage.CGImage); break; } CGImageRef cgimg =CGBitmapContextCreateImage(ctx); UIImage *img = [UIImageimageWithCGImage:cgimg]; CGContextRelease(ctx); CGImageRelease(cgimg); return img;} |
此demo从相册选区图片使用的单选图片，如果想看多选图片显示在ScrollView中demo 地址：
https://github.com/tuwanli/PictureMutipleSelect
总结
以上所述是小编给大家介绍的iOS 图片上传使用base64或者二进制流上传头像功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
原文链接：http://blog.csdn.net/qq_33226881/article/details/78130116
