//.h
/**
*POST 提交 并可以上傳圖片目前只支持單張
*/
+ (void)pushImageWithURL: (NSString *)url? // IN
postParems: (NSMutableDictionary *)postParems // IN 提交參數(shù)據(jù)集合
picFilePath: (NSString *)picFilePath? // IN 上傳圖片路徑
picFileName: (NSString *)picFileName result:(void (^)(id responseObject))result;? // IN 上傳圖片名稱(chēng)
/**
* 修改圖片大小
*/
+ (UIImage *) imageWithImageSimple:(UIImage*)image scaledToSize:(CGSize) newSize;
/**
* 保存圖片
*/
+ (NSString *)saveImage:(UIImage *)tempImage WithName:(NSString *)imageName;
//比例壓縮
+ (UIImage *)image:(UIImage *)image ratio:(CGFloat)ratio;
//image等比例縮放
+ (UIImage *)image:(UIImage *)image maxLength:(CGFloat)length;
//等比例高
+ (UIImage *)image:(UIImage *)image width:(CGFloat)width;
//等比例寬
+ (UIImage *)image:(UIImage *)image height:(CGFloat)height;
//.m
/**
*POST 提交 并可以上傳圖片目前只支持單張
*/
+ (void)pushImageWithURL: (NSString *)url? postParems: (NSMutableDictionary *)postParems? picFilePath: (NSString *)picFilePath? picFileName: (NSString *)picFileName result:(void (^)(id responseObject))result {
NSString *TWITTERFON_FORM_BOUNDARY = @"0xKhTmLbOuNdArY";
//根據(jù)url初始化request
NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]
cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
timeoutInterval:10];
//分界線 --AaB03x
NSString *MPboundary=[[NSString alloc]initWithFormat:@"--%@",TWITTERFON_FORM_BOUNDARY];
//結(jié)束符 AaB03x--
NSString *endMPboundary=[[NSString alloc]initWithFormat:@"%@--",MPboundary];
//得到圖片的data
NSData* data;
if(picFilePath){
UIImage *image=[UIImage imageWithContentsOfFile:picFilePath];
//判斷圖片是不是png格式的文件
if (UIImagePNGRepresentation(image)) {
//返回為png圖像陵刹。
data = UIImagePNGRepresentation(image);
}else {
//返回為JPEG圖像脚翘。
data = UIImageJPEGRepresentation(image, 1.0);
}
}
//http body的字符串
NSMutableString *body=[[NSMutableString alloc]init];
//參數(shù)的集合的所有key的集合
NSArray *keys= [postParems allKeys];
//遍歷keys
for(int i=0;i<[keys count];i++)
{
//得到當(dāng)前key
NSString *key=[keys objectAtIndex:i];
//添加分界線误算，換行
[body appendFormat:@"%@\r\n",MPboundary];
//添加字段名稱(chēng)，換2行
[body appendFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",key];
//添加字段的值
[body appendFormat:@"%@\r\n",[postParems objectForKey:key]];
//? ? ? ? NSLog(@"添加字段的值==%@",[postParems objectForKey:key]);
}
if(picFilePath){
////添加分界線眠蚂，換行
[body appendFormat:@"%@\r\n",MPboundary];
//聲明pic字段，文件名為boris.png
[body appendFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"%@\"\r\n",FORM_FLE_INPUT,picFileName];
//聲明上傳文件的格式
[body appendFormat:@"Content-Type: image/jpge,image/gif, image/jpeg, image/pjpeg, image/pjpeg\r\n\r\n"];
}
//聲明結(jié)束符：--AaB03x--
NSString *end=[[NSString alloc]initWithFormat:@"\r\n%@",endMPboundary];
//聲明myRequestData姚垃，用來(lái)放入http body
NSMutableData *myRequestData=[NSMutableData data];
//將body字符串轉(zhuǎn)化為UTF8格式的二進(jìn)制
[myRequestData appendData:[body dataUsingEncoding:NSUTF8StringEncoding]];
if(picFilePath){
//將image的data加入
[myRequestData appendData:data];
}
//加入結(jié)束符--AaB03x--
[myRequestData appendData:[end dataUsingEncoding:NSUTF8StringEncoding]];
//設(shè)置HTTPHeader中Content-Type的值
NSString *content=[[NSString alloc]initWithFormat:@"multipart/form-data; boundary=%@",TWITTERFON_FORM_BOUNDARY];
//設(shè)置HTTPHeader
[request setValue:content forHTTPHeaderField:@"Content-Type"];
//設(shè)置Content-Length
[request setValue:[NSString stringWithFormat:@"%lu", (unsigned long)[myRequestData length]] forHTTPHeaderField:@"Content-Length"];
//設(shè)置http body
[request setHTTPBody:myRequestData];
//http method
[request setHTTPMethod:@"POST"];
NSHTTPURLResponse *urlResponese = nil;
NSError *error = [[NSError alloc]init];
NSData* resultData = [NSURLConnection sendSynchronousRequest:request? returningResponse:&urlResponese error:&error];
NSString? *resultStr= [[NSString alloc] initWithData:resultData encoding:NSUTF8StringEncoding];
if([urlResponese statusCode] >=200&&[urlResponese statusCode]<300){
if (result) {
result(resultStr);
}
}
}
/**
* 修改圖片大小
*/
+ (UIImage *) imageWithImageSimple:(UIImage*)image scaledToSize:(CGSize) newSize {
newSize.height=image.size.height*(newSize.width/image.size.width);
UIGraphicsBeginImageContext(newSize);
[image drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
UIImage *newImage=UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return? newImage;
}
/**
* 保存圖片
*/
+ (NSString *)saveImage:(UIImage *)tempImage WithName:(NSString *)imageName {
NSData* imageData;
//判斷圖片是不是png格式的文件
if (UIImagePNGRepresentation(tempImage)) {
//返回為png圖像。
imageData = UIImagePNGRepresentation(tempImage);
}else {
//返回為JPEG圖像蒂培。
imageData = UIImageJPEGRepresentation(tempImage, 1.0);
}
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
NSString* fullPathToFile = [documentsDirectory stringByAppendingPathComponent:imageName];
[imageData writeToFile:fullPathToFile atomically:NO];
return fullPathToFile;
}
+ (UIImage *)image:(UIImage *)image ratio:(CGFloat)ratio {
NSData? ? *mzData = UIImageJPEGRepresentation(image, ratio);
return [UIImage imageWithData:mzData];
}
//image等比例縮放
+ (UIImage *)image:(UIImage *)image maxLength:(CGFloat)length {
CGSize? newSize;
if (image.size.height > image.size.width) {
newSize = CGSizeMake(length * image.size.width / image.size.height, length);
}else {
newSize = CGSizeMake(length, length * image.size.height / image.size.width);
}
return [self imageWithImageSimple:image scaledToSize:newSize];
}
//等比例高
+ (UIImage *)image:(UIImage *)image width:(CGFloat)width {
CGSize? newSize = CGSizeMake(width,image.size.height*width/image.size.width);
return [self imageWithImageSimple:image scaledToSize:newSize];
}
//等比例寬
+ (UIImage *)image:(UIImage *)image height:(CGFloat)height {
CGSize? newSize = CGSizeMake(image.size.width*height/image.size.height,height);
return [self imageWithImageSimple:image scaledToSize:newSize];
}
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