iOS 上传本地视频或者图片(转载)

2020-05-11 本文已影响0人辛乐

转载:https://www.cnblogs.com/zhouxihi/p/6526304.html

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iOS实现视频和图片的上传

关于iOS如何实现视频和图片的上传, 我们先理清下思路

思路:

1. 如何获取图片?

2. 如何获取视频?

3. 如何把图片存到缓存路径中?

4. 如何把视频存到缓存路径中?

5. 如何上传?

接下来, 我们按照上面的思路一步一步实现

首先我们新建一个类, 用来储存每一个要上传的文件uploadModel.h

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">#import <Foundation/Foundation.h>

@interface uploadModel : NSObject

@property (nonatomic, strong) NSString *path;
@property (nonatomic, strong) NSString *type;
@property (nonatomic, strong) NSString *name;
@property (nonatomic, assign) BOOL isUploaded; @end</pre>

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1. 如何获取图片?

从相册选择或者拍照,

这部分可以用UIImagePickerController来实现

代码如下:

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">- (void)actionPhoto {

UIAlertController *alertController  = \
[UIAlertController alertControllerWithTitle:@"" message:@"上传照片" preferredStyle:UIAlertControllerStyleActionSheet];

UIAlertAction *photoAction  = \
[UIAlertAction actionWithTitle:@"从相册选择" style:UIAlertActionStyleDefault
                       handler:^(UIAlertAction * _Nonnull action) {

                           NSLog(@"从相册选择");
                           self.imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
                           self.imagePicker.mediaTypes = @[(NSString *)kUTTypeImage];
                           self.imagePicker.allowsEditing = YES;

                           [self presentViewController:self.imagePicker
                                              animated:YES
                                            completion:nil];

                       }];

UIAlertAction *cameraAction = \
[UIAlertAction actionWithTitle:@"拍照" style:UIAlertActionStyleDefault
                       handler:^(UIAlertAction * _Nonnull action) {

                           NSLog(@"拍照"); if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {

                               self.imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
                               self.imagePicker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;
                               self.imagePicker.cameraDevice = UIImagePickerControllerCameraDeviceRear;
                               self.imagePicker.allowsEditing = YES;

                               [self presentViewController:self.imagePicker
                                                  animated:YES
                                                completion:nil];
                           }
                       }];

UIAlertAction *cancelAction = \
[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel
                       handler:^(UIAlertAction * _Nonnull action) {

                           NSLog(@"取消");
                       }];

[alertController addAction:photoAction];
[alertController addAction:cameraAction];
[alertController addAction:cancelAction];

[self presentViewController:alertController animated:YES completion:nil];

}</pre>

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2. 如果获取视频?

从相册选择或者拍摄

这部分也可以用UIImagePickerController来实现

代码:

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">- (void)actionVideo {

UIAlertController *alertController = \
[UIAlertController alertControllerWithTitle:@"" message:@"上传视频" preferredStyle:UIAlertControllerStyleActionSheet];

UIAlertAction *photoAction = \
[UIAlertAction actionWithTitle:@"从视频库选择" style:UIAlertActionStyleDefault
                       handler:^(UIAlertAction * _Nonnull action) {

                           NSLog(@"从视频库选择");
                           self.imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
                           self.imagePicker.mediaTypes = @[(NSString *)kUTTypeMovie];
                           self.imagePicker.allowsEditing = NO;

                           [self presentViewController:self.imagePicker animated:YES completion:nil];
                       }];

UIAlertAction *cameraAction = \
[UIAlertAction actionWithTitle:@"录像" style:UIAlertActionStyleDefault
                       handler:^(UIAlertAction * _Nonnull action) {

                           NSLog(@"录像");
                           self.imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
                           self.imagePicker.cameraDevice = UIImagePickerControllerCameraDeviceRear;
                           self.imagePicker.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];
                           self.imagePicker.videoQuality = UIImagePickerControllerQualityType640x480;
                           self.imagePicker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModeVideo;
                           self.imagePicker.allowsEditing = YES;

                           [self presentViewController:self.imagePicker animated:YES completion:nil];
                       }];

UIAlertAction *cancelAction = \
[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel
                       handler:^(UIAlertAction * _Nonnull action) {

                           NSLog(@"取消");
                       }];

[alertController addAction:photoAction];
[alertController addAction:cameraAction];
[alertController addAction:cancelAction];

[self presentViewController:alertController animated:YES completion:nil];

}</pre>

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3, 关于缓存, 如何把照片存入缓存目录?

这部分我们先考虑缓存目录, 一般存在Document 或者 Temp里面

我们给图片和视频各创建一个缓存目录:

<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">#define PHOTOCACHEPATH [NSTemporaryDirectory() stringByAppendingPathComponent:@"photoCache"]

define VIDEOCACHEPATH [NSTemporaryDirectory() stringByAppendingPathComponent:@"videoCache"]</pre>

把UIImage存入缓存的方法:

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">//将Image保存到缓存路径中

(void)saveImage:(UIImage *)image toCachePath:(NSString *)path {

NSFileManager *fileManager = [NSFileManager defaultManager]; if (![fileManager fileExistsAtPath:PHOTOCACHEPATH]) {
```
  NSLog(@"路径不存在, 创建路径");
  [fileManager createDirectoryAtPath:PHOTOCACHEPATH
         withIntermediateDirectories:YES
                          attributes:nil
                               error:nil];
```
} else {
```
  NSLog(@"路径存在");
```
} //[UIImagePNGRepresentation(image) writeToFile:path atomically:YES];
[UIImageJPEGRepresentation(image, 1) writeToFile:path atomically:YES];
}</pre>

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4. 如何把视频存入缓存?

把视频存入缓存的方法:

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">//将视频保存到缓存路径中

(void)saveVideoFromPath:(NSString *)videoPath toCachePath:(NSString *)path {

NSFileManager *fileManager = [NSFileManager defaultManager]; if (![fileManager fileExistsAtPath:VIDEOCACHEPATH]) {
```
  NSLog(@"路径不存在, 创建路径");
  [fileManager createDirectoryAtPath:VIDEOCACHEPATH
         withIntermediateDirectories:YES
                          attributes:nil
                               error:nil];
```
} else {
```
  NSLog(@"路径存在");
```
}

NSError *error;
[fileManager copyItemAtPath:videoPath toPath:path error:&error]; if (error) {
```
  NSLog(@"文件保存到缓存失败");
```
}
}</pre>

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从缓存获取图片的方法:

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">//从缓存路径获取照片

(UIImage *)getImageFromPath:(NSString *)path {

NSFileManager *fileManager = [NSFileManager defaultManager]; if ([fileManager fileExistsAtPath:path]) { return [UIImage imageWithContentsOfFile:path];
} return nil;
}</pre>

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上传图片和视频的时候我们一般会利用当前时间给文件命名, 方法如下

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">//以当前时间合成图片名称

(NSString *)getImageNameBaseCurrentTime {

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH-mm-ss"]; return [[dateFormatter stringFromDate:[NSDate date]] stringByAppendingString:@".JPG"];
} //以当前时间合成视频名称
(NSString *)getVideoNameBaseCurrentTime {

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH-mm-ss"]; return [[dateFormatter stringFromDate:[NSDate date]] stringByAppendingString:@".MOV"];
}</pre>

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有时候需要获取视频的第一帧作为显示, 方法如下:

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">//获取视频的第一帧截图, 返回UIImage //需要导入AVFoundation.h

(UIImage*) getVideoPreViewImageWithPath:(NSURL *)videoPath
{
AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:videoPath options:nil];

AVAssetImageGenerator *gen = [[AVAssetImageGenerator alloc] initWithAsset:asset];
gen.appliesPreferredTrackTransform = YES;

CMTime time = CMTimeMakeWithSeconds(0.0, 600);
NSError *error = nil;

CMTime actualTime;
CGImageRef image = [gen copyCGImageAtTime:time actualTime:&actualTime error:&error];
UIImage *img = [[UIImage alloc] initWithCGImage:image]; return img;
}</pre>

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5. 如何上传?

下面就是上传方法:

我把服务器地址xx掉了, 大家可以改为自己的

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">//上传图片和视频

(void)uploadImageAndMovieBaseModel:(uploadModel *)model { //获取文件的后缀名
NSString *extension = [model.name componentsSeparatedByString:@"."].lastObject; //设置mimeType
NSString *mimeType; if ([model.type isEqualToString:@"image"]) {
```
  mimeType = [NSString stringWithFormat:@"image/%@", extension];
```
} else {
```
  mimeType = [NSString stringWithFormat:@"video/%@", extension];
```
} //创建AFHTTPSessionManager
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; //设置响应文件类型为JSON类型
manager.responseSerializer = [AFJSONResponseSerializer serializer]; //初始化requestSerializer
manager.requestSerializer = [AFHTTPRequestSerializer serializer];

manager.responseSerializer.acceptableContentTypes = nil; //设置timeout
[manager.requestSerializer setTimeoutInterval:20.0]; //设置请求头类型
[manager.requestSerializer setValue:@"form/data" forHTTPHeaderField:@"Content-Type"]; //设置请求头, 授权码
[manager.requestSerializer setValue:@"YgAhCMxEehT4N/DmhKkA/M0npN3KO0X8PMrNl17+hogw944GDGpzvypteMemdWb9nlzz7mk1jBa/0fpOtxeZUA==" forHTTPHeaderField:@"Authentication"]; //上传服务器接口
NSString *url = [NSString stringWithFormat:@"http://xxxxx.xxxx.xxx.xx.x"]; //开始上传
[manager POST:url parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
```
  NSError *error;
  BOOL success = [formData appendPartWithFileURL:[NSURL fileURLWithPath:model.path] name:model.name fileName:model.name mimeType:mimeType error:&error]; if (!success) {

      NSLog(@"appendPartWithFileURL error: %@", error);
  }
```
} progress:^(NSProgress * _Nonnull uploadProgress) {
```
  NSLog(@"上传进度: %f", uploadProgress.fractionCompleted);
```
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
```
  NSLog(@"成功返回: %@", responseObject);
  model.isUploaded = YES;
  [self.uploadedArray addObject:model];
```
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
```
  NSLog(@"上传失败: %@", error);
  model.isUploaded = NO;
```
}];
}</pre>

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这里有事先创建两个可变数组uploadArray, uploadedArray, 一个存放准要上传的内容, 一个存放上传完的内容

在准备上传后做什么操作, 可以检查两个数组的数量是否相等

最后是UIImagePickerController的协议方法

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<pre style="margin: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: "Courier New" !important; font-size: 12px !important;">#pragma mark - UIImagePickerDelegate methods

(void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info {

[picker dismissViewControllerAnimated:YES completion:nil]; //获取用户选择或拍摄的是照片还是视频
NSString *mediaType = info[UIImagePickerControllerMediaType]; if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) { //获取编辑后的照片
NSLog(@"获取编辑后的好片");
UIImage *tempImage = info[UIImagePickerControllerEditedImage]; //将照片存入相册
if (tempImage) { if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) { //将照片存入相册
NSLog(@"将照片存入相册");
UIImageWriteToSavedPhotosAlbum(tempImage, self, nil, nil);
} //获取图片名称
NSLog(@"获取图片名称");
NSString *imageName = [self getImageNameBaseCurrentTime];
NSLog(@"图片名称: %@", imageName); //将图片存入缓存
NSLog(@"将图片写入缓存");
[self saveImage:tempImage
toCachePath:[PHOTOCACHEPATH stringByAppendingPathComponent:imageName]]; //创建uploadModel
NSLog(@"创建model");
uploadModel *model = [[uploadModel alloc] init];
```
      model.path = [PHOTOCACHEPATH stringByAppendingPathComponent:imageName];
      model.name = imageName;
      model.type = @"image";
      model.isUploaded = NO; //将模型存入待上传数组
      NSLog(@"将Model存入待上传数组");
      [self.uploadArray addObject:model];

  }
```
} else if ([mediaType isEqualToString:(NSString *)kUTTypeMovie]) { if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) { //如果是拍摄的视频, 则把视频保存在系统多媒体库中
NSLog(@"video path: %@", info[UIImagePickerControllerMediaURL]);
```
      ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
      [library writeVideoAtPathToSavedPhotosAlbum:info[UIImagePickerControllerMediaURL] completionBlock:^(NSURL *assetURL, NSError *error) { if (!error) {

              NSLog(@"视频保存成功");
          } else {

              NSLog(@"视频保存失败");
          }
      }];
  } //生成视频名称
  NSString *mediaName = [self getVideoNameBaseCurrentTime];
  NSLog(@"mediaName: %@", mediaName); //将视频存入缓存
  NSLog(@"将视频存入缓存");
  [self saveVideoFromPath:info[UIImagePickerControllerMediaURL] toCachePath:[VIDEOCACHEPATH stringByAppendingPathComponent:mediaName]]; //创建uploadmodel
  uploadModel *model = [[uploadModel alloc] init];

  model.path = [VIDEOCACHEPATH stringByAppendingPathComponent:mediaName];
  model.name = mediaName;
  model.type = @"moive";
  model.isUploaded = NO; //将model存入待上传数组
```

[self.uploadArray addObject:model];
} //[picker dismissViewControllerAnimated:YES completion:nil];
} - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {

[picker dismissViewControllerAnimated:YES completion:nil];

}</pre>

iOS 上传本地视频或者图片(转载)

iOS实现视频和图片的上传

1. 如何获取图片?

2. 如何获取视频?

3. 如何把图片存到缓存路径中?

4. 如何把视频存到缓存路径中?

5. 如何上传?

1. 如何获取图片?

2. 如果获取视频?

3, 关于缓存, 如何把照片存入缓存目录?

define VIDEOCACHEPATH [NSTemporaryDirectory() stringByAppendingPathComponent:@"videoCache"]</pre>

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