ios - Swift Code for reducing / compressing pictures saved to parse -


please @ code below if believe there can done improve swift code please let me know - converted code objective-c off raw engineering website www.rawend.com

@ibaction func signup(sender: anyobject) {

    let imagedata = uiimagepngrepresentation(self.profilepic.image)      let image = uiimage(data: imagedata)      func compressimage(image:uiimage) -> nsdata {         // reducing file size 10th          var actualheight : cgfloat = image.size.height         var actualwidth : cgfloat = image.size.width         var maxheight : cgfloat = 1136.0         var maxwidth : cgfloat = 640.0         var imgratio : cgfloat = actualwidth/actualheight         var maxratio : cgfloat = maxwidth/maxheight         var compressionquality : cgfloat = 0.5          if (actualheight > maxheight || actualwidth > maxwidth){             if(imgratio < maxratio){                 //adjust width according maxheight                 imgratio = maxheight / actualheight;                 actualwidth = imgratio * actualwidth;                 actualheight = maxheight;             }             else if(imgratio > maxratio){                 //adjust height according maxwidth                 imgratio = maxwidth / actualwidth;                 actualheight = imgratio * actualheight;                 actualwidth = maxwidth;             }             else{                 actualheight = maxheight;                 actualwidth = maxwidth;                 compressionquality = 1;             }         }          var rect = cgrectmake(0.0, 0.0, actualwidth, actualheight);         uigraphicsbeginimagecontext(rect.size);         image.drawinrect(rect)         var img = uigraphicsgetimagefromcurrentimagecontext();         let imagedata = uiimagejpegrepresentation(img, compressionquality);         uigraphicsendimagecontext();          return imagedata;     }      let compressedimage = compressimage(image!)      let picture = pffile(name: "image.png", data: compressedimage)      pfuser.currentuser()!.setobject(picture, forkey: "profilepic")     pfuser.currentuser()!.saveinbackgroundwithblock {         (success: bool, error: nserror?) -> void in         if (success) {             println("image has been saved")         } else {             println("image failed")         }     } }


Comments

Post a Comment

Popular posts from this blog

c++ - Difference between pre and post decrement in recursive function argument -

i have following sample code used pre-decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(--c); cout << c << endl; return; } } this function give output input 4 : dp3 dp2 dp1 dp0 0 1 2 3 but when use post decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(c--); cout << c << endl; return; } } output goes in infinite loop dp4 can explain me in detail why happens ? this happens because function(c--) called same value of c , when finishes c decremented. recursively called, hence called same value no chance of return , hit stack overflow error. assume this, int x = 1, y = 0; y = x++ result y == 1 , x == 2. if y = ++x , bot x , y 2.
Read more

php - Nothing but 'run(); ' when browsing to my local project, how do I fix this? -

i added new project. made mistake in projectname.conf file in sites-available apache2, led me reinstalling apache2. after reinstalling , re-enabling projects on every page of every project .. <body> run(); </body> .. i've run composer update, restarted service, restarted pc, checked config files, tried disabling new project. there nothing in error log, , access.log: 127.0.0.1 - - [15/may/2015:01:40:47 +0200] "get / http/1.1" 304 181 "-" "mozilla/5.0 (x11; ubuntu; linux x86_64; rv:38.0) gecko/20100101 firefox/38.0" maybe i'm forgetting apache2 reinstall? don't think did different last time installed it. looks haven't setup php correctly. take @ this great guide , maybe you're forgetting link php config apache2.
Read more

php - How can I echo out this array? -

i don't know how go grabbing data in variable , put foreach loop. class tree{ private $info = array( array('name'=>'jim','state'=>'nu','company'=>'nu','phone'=>array('cell'=>'5615111111','office'=>'5611111111'),'email'=>array('primary'=>'exs@example.com','ex@there.com')), array('name'=>'joe smith','city'=>'phoenix','phone'=>'4805551111','email'=>'jsmith@some_email.com'), array('name'=>'john doe','city'=>'chandler','company'=>'doe co.','email'=>array('jdoe@gmail.com','personal'=>'email@email.com'),'phone'=>'6025550002') ); } if you're inside of class, can access private variable using $this->variablename . example, i
Read more