Databases
StackOverflow2013
Postsdbo
POShowing Accurate Progress In UIProgressView While Downloading Images in iphone
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POShowing Accurate Progress In UIProgressView While Downloading Images in iphone
    primarykey
    data
    text
    <p><strong>I have four urls which consists images... I'm downloding those images and placing them into documents folder..</strong></p> <p><strong>here is my code..</strong></p> <pre><code>-(void)viewDidLoad { NSMutableArray *myUrlsArray=[[NSMutableArray alloc]init]; [myUrlsArray addObject:@"http://blogs.sfweekly.com/thesnitch/steve_jobs3.jpg"]; [myUrlsArray addObject:@"http://www.droid-life.com/wp-content/uploads/2012/12/Steve-Jobs-Apple.jpg"]; [myUrlsArray addObject:@"http://2.bp.blogspot.com/-T6nbl0rQoME/To0X5FccuCI/AAAAAAAAEZQ/ipUU7JfEzTs/s1600/steve-jobs-in-time-magazine-front-cover.png"]; [myUrlsArray addObject:@"http://images.businessweek.com/ss/08/09/0929_most_influential/image/steve_jobs.jpg"]; [myUrlsArray addObject:@"http://cdn.ndtv.com/tech/gadget/image/steve-jobs-face.jpg"]; for (int i=0; i&lt;myUrlsArray.count; i++) { [self downloadImageFromURL:[myUrlsArray objectAtIndex:i] withName:[NSString stringWithFormat:@"MyImage%i.jpeg",i]]; } } #pragma mark- downloading File -(void)downloadImageFromURL:(NSString *)myURLString withName:(NSString *)fileName { UIImage *image = [[UIImage alloc] initWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:myURLString]]]; NSLog(@"%f,%f",image.size.width,image.size.height); // Let's save the file into Document folder.** NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES) objectAtIndex:0]; NSString *jpegPath = [NSString stringWithFormat:@"%@/%@",documentsPath,fileName];// this path if you want save reference path in sqlite NSData *data2 = [NSData dataWithData:UIImageJPEGRepresentation(image, 1.0f)];//1.0f = 100% quality [data2 writeToFile:jpegPath atomically:YES]; } </code></pre> <p><strong>NOW... I need to display a UIProgressView for above downloading progress accurately.</strong></p> <p><strong>how can i achieve this functionality...</strong></p> <p><strong>Can any one provide some guidelines to achieve this..</strong></p> <p><strong>Thanks in advance...</strong></p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USAshok Kumar S
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POShowing Accurate Progress In UIProgressView While Downloading Images in iphone
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POShowing Accurate Progress In UIProgressView While Downloading Images in iphone
      1. USAshok Kumar S
      1. VTFavorite
    3. VO
      singulars
      1. POShowing Accurate Progress In UIProgressView While Downloading Images in iphone
      1. USraz
      1. VTFavorite
    1. COFor this thing at first you must know the total size of the image before it is downloaded entirely then you have to calculate the downloaded data every time and the percentage of that data w.r.t the total size then only I think it is possible.
      singulars
      1. POShowing Accurate Progress In UIProgressView While Downloading Images in iphone
      1. USExploring
    2. COBTW, you really don't want to download the `NSData`, create a `UIImage`, and then re-extract the `NSData` using `UIImageJPEGRepresentation`. JPG is lossy so you're either going to lose quality, or if you use 1.0 for quality, the file will undoubtedly be bigger than the original. If you do this yourself, make sure to retrieve the original `NSData` into its own variable, and when you want to save it save that, not the result of `UIImageJPEGRepresentation`.
      singulars
      1. POShowing Accurate Progress In UIProgressView While Downloading Images in iphone
      1. USRob
    3. COIt's a hack so I won't list is as a answer.. But what I did in this case was to build my own progress bar and update it by 25% as each image is completed. Actually to make it look like it doesn't just stop at 75% and then disappear, I take it to like 90% then do a couple other quick tasks before removing it.
      singulars
      1. POShowing Accurate Progress In UIProgressView While Downloading Images in iphone
      1. USbadweasel
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload