图片压缩

- (UIImage *)imaYasuo:(UIImage *)image {

// 原始数据

NSData *imgData = UIImageJPEGRepresentation(image, 1.0);

// 原始图片

UIImage *result = [UIImage imageWithData:imgData];

//1024为1KB

while (imgData.length > 200000) {

imgData = UIImageJPEGRepresentation(result, 0.5);

result = [UIImage imageWithData:imgData];

}

return result;

}

图片压缩到 200K之内