iOS将图片存入到相册中

将图片存入到相册中

常用李明杰的第三方库。

---

UIImageWriteToSavedPhotosAlbum(<#UIImage *_Nonnull image#>, <#id_NullablecompletionTarget#>, <#SEL_Nullable completionSelector#>, <#void * _Nullable contextInfo#>)

参数：

image

带保存的图片UImage对象

completionTarget

图像保存至相册后调用completionTarget指定的selector（可选）

completionSelector

completionTarget的方法对应的选择器，相当于回调方法，需满足以下格式

contextInfo指定了在回调中可选择传入的数据

当我们需要异步获得图像保存结果的消息时，我们需要指定completionTarget对象以及其completionSelector对应的选择器

- (void)saveImageToPhotos:(UIImage*)savedImage

{

UIImageWriteToSavedPhotosAlbum(image,self,@selector(mage:didFinishSavingWiithError:contextInfo:),NULL);

}

//指定回调方法

- (void)image: (UIImage*) image didFinishSavingWithError: (NSError*) error contextInfo: (void*) contextInfo

{

NSString*msg = nil ;

if(error != NULL){

msg=@"保存图片失败";

}else{

msg=@"保存图片成功";

}

UIAlertView*alert = [[UIAlertView alloc] initWithTitle:@"保存图片结果提示"

message:msg

delegate:self

cancelButtonTitle:@"确定"

otherButtonTitles:nil];

[alert show];

}

//调用示例

UIImage*savedImage = [UIImageimageNamed:"savedImage.png"];

[selfsaveImageToPhotos:savedImage];

网络数据

网络下载 使用第三方

网络上传

/**

*图片上传

*/

-(void)imageViewUpLoad{

NSData*icon = [[NSDataalloc]initWithBase64EncodedString:@""options:NSDataBase64DecodingIgnoreUnknownCharacters];

UIImage*image = [UIImageimageWithData:icon];

NSString*url=@"";

AFHTTPRequestOperationManager *manager =[AFHTTPRequestOperationManager manager];

manager.responseSerializer = [AFJSONResponseSerializerserializer];

[manager POST:url parameters:paramsconstructingBodyWithBlock:^(idformData) {

[formDataappendPartWithFileData:fileData name:@"uploadFile"fileName:@"icon.jpg"mimeType:@"image/jpeg"];

[MBProgressHUD showMsg:@"正在加载中"];

} success:^(AFHTTPRequestOperation*operation,idresponseObject) {

}

}

//获取图片并将其存入到沙盒中

-(void)imagePickerController:(UIImagePickerController*)picker

didFinishPickingMediaWithInfo:(NSDictionary *)info{

//获取点击的图片

UIImage*image = info[UIImagePickerControllerOriginalImage];

self.icon= image;

NSData*fileData =UIImageJPEGRepresentation(image, 1.0);

//将图片转化成字符串

NSString*encodedImageStr = [fileDatabase64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];

//存储到沙盒

ZPEmpInfo*emp = [[ZPEmpInfoalloc]init];

emp.icon= encodedImageStr;

[ZPAccountInfoToolsaveEmpIcon:emp];

[self.iconButtonsetImage:imageforState:UIControlStateNormal];

[selfdismissViewControllerAnimated:YEScompletion:nil];

}

沙盒中：

#define

empIcon [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,

NSUserDomainMask, YES)lastObject]stringByAppendingPathComponent:@"empIcon.archiver"]

//个人头像

+ (void)saveEmpIcon:(ZPEmpInfo*)icon

{

[NSKeyedArchiverarchiveRootObject:icontoFile:empIcon];

}

+ (ZPEmpInfo*)empIconAccount

{

ZPEmpInfo*icon = [NSKeyedUnarchiverunarchiveObjectWithFile:empIcon];

returnicon;

}