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;
}
