I am making an iphone app, in one of the view I am trying to put the activity indicator on button click. Whenever user clicks on button, indicator must starts and at the end of this button activity indicator must stop. I have tried to implement it. But it is not working properly.
If someone has the solution for it. Please let me know.
-(void)temp
{
spinner = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
spinner.frame = CGRectMake(0.0, 0.0, 40.0, 40.0);
[spinner setCenter:CGPointMake(480/2.0, 128.0/2)]; // (mid of screen) I do this because I'm in landscape mode
[timetable addSubview:spinner];
[spinner startAnimating];
[spinner release];
}
-(IBAction)datetimeis:(id)sender
{
[self temp];
for (int d=0 ; d<=[totaltimearray count]-1; d++)
{
for (int e=0 ; e<=[appendarray count]-1; e++)
{
appenddate = [appendarray objectAtIndex:e];
datestring = [NSString stringWithFormat:#"%#",appenddate];
appendtime = [totaltimearray objectAtIndex:d];
timestring = [NSString stringWithFormat:#"%#",appendtime];
rslttwostr = [datestring stringByAppendingFormat:#"%#",timestring];
NSLog(#"timestring is:%#",rslttwostr);
[dateandtime addObject:rslttwostr];
NSLog(#"dateandtimeis:%#",dateandtime);
}
}
totaltimewithdate = dateandtime;
[self savedetails];
[self docmedname];
[self retrivenotificationarray];
//[barButton release];
[self.navigationController popToRootViewControllerAnimated:YES];
}
Thanks alot.
Place this line at start of button action...
[NSThread detachNewThreadSelector:#selector(StartActivityIndicator) toTarget:self withObject:nil];
add this method...
-(void)StartActivityIndicator
{
[activityIndicator startAnimating];
}
Related
I have set up a subview "popup" in my application and I want to show a navController if the user taps a button on the subview popup. I've set up the button so far, but if I tap the button the navigationController appears under my popup!? I've searched for some solution but I didn't found any. The whole controller is actually displayed in a folder which you can find here: https://github.com/jwilling/JWFolders So the viewDidLoad belong to the folder and the rootview.
I tried to make it as a subview of the popup but that doesn't work too. Does anyone know how to treat that? I've set up the popup programmaticaly and the navigationController too.
Thanks in advance.
My code:
The navController setup:
- (IBAction)dothis:(id)sender {
MWPhotoBrowser *browser = [[MWPhotoBrowser alloc] initWithDelegate:self];
// Set browser options.
browser.wantsFullScreenLayout = YES;
browser.displayActionButton = YES;
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:browser];
[self presentModalViewController:navController animated:YES];
NSMutableArray *photos = [[NSMutableArray alloc] init];
MWPhoto *photo;
photo = [MWPhoto photoWithFilePath:[[NSBundle mainBundle] pathForResource:#"star" ofType:#"png"]];
photo.caption = #"The star is soo beateful...";
[photos addObject:photo];
self.photos = photos;
}
- (MWPhoto *)photoBrowser:(MWPhotoBrowser *)photoBrowser photoAtIndex:(NSUInteger)index {
if (index < _photos.count)
return [_photos objectAtIndex:index];
return nil;
}
- (NSUInteger)numberOfPhotosInPhotoBrowser:(MWPhotoBrowser *)photoBrowser {
return _photos.count;
}
The popup code:
-(IBAction)mehr:(id)sender {
//the popup size and content
UIView *contentView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 280, 440)];
CGRect welcomeLabelRect = contentView.bounds;
welcomeLabelRect.origin.y = 20;
welcomeLabelRect.size.height = 40;
UILabel *welcomeLabel = [[UILabel alloc] initWithFrame:welcomeLabelRect];
//an simple activityindicator
activityindi = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
activityindi.frame = CGRectMake(120, 200, 40, 40);
[activityindi startAnimating];
[contentView addSubview:activityindi];
//The Imageview
CGRect infoimagerect = CGRectMake(5, 70, 270, 200);
UIImageView *infoimage = [[UIImageView alloc] initWithFrame:infoimagerect];
//and the Button
cubut = [UIButton buttonWithType:UIButtonTypeCustom];
[cubut addTarget:self
action:#selector(dothis:)
forControlEvents:UIControlEventTouchUpInside];
[cubut setTitle:nil forState:UIControlStateNormal];
cubut.frame = CGRectMake(5, 70, 270, 200);
//retrieving data from parse.com
PFQuery *query = [PFQuery queryWithClassName:#"My-Application"];
[query getObjectInBackgroundWithId:#"My-ID"
block:^(PFObject *textdu, NSError *error) {
if (!error) {
//hide the Button if there is no image
cubut.hidden=YES;
//the headline of popup
UIFont *welcomeLabelFont = [UIFont fontWithName:#"copperplate" size:20];
welcomeLabel.text = [textdu objectForKey:#"header"];
welcomeLabel.font = welcomeLabelFont;
welcomeLabel.textColor = [UIColor whiteColor];
welcomeLabel.textAlignment = NSTextAlignmentCenter;
welcomeLabel.backgroundColor = [UIColor clearColor];
welcomeLabel.shadowColor = [UIColor blackColor];
welcomeLabel.shadowOffset = CGSizeMake(0, 1);
welcomeLabel.lineBreakMode = UILineBreakModeWordWrap;
welcomeLabel.numberOfLines = 2;
[contentView addSubview:welcomeLabel];
//the image from parse
if (!error) {
PFFile *imageFile = [textdu objectForKey:#"image"];
[imageFile getDataInBackgroundWithBlock:^(NSData *data, NSError *error) {
if (!error) {
UIImage *image = [UIImage imageWithData:data];
infoimage.image = image;
infoimage.contentMode = UIViewContentModeScaleAspectFit;
//show the button when the image appears
cubut.hidden = NO;
[contentView addSubview:infoimage];
//stop the activityindicator
[activityindi stopAnimating];
}
}];
}
} else {
//show some text
welcomeLabel.text = #"No connection!";
[welcomeLabel sizeToFit];
//hide the button
cubut.hidden = YES;
[contentView addSubview:infoLabel];
//stop the activityindicator
[activityindi stopAnimating];
}
}];
//add the content to the KNGModal view
[[KGModal sharedInstance] showWithContentView:contentView andAnimated:YES];
}
My viewDidLoad
- (void)viewDidLoad
{
but.hidden = YES;
PFQuery *query = [PFQuery queryWithClassName:#"myapp"];
[query getObjectInBackgroundWithId:#"Rgq5vankdf"
block:^(PFObject *textu, NSError *error) {
if (!error) {
but.hidden = NO;
but.color = [UIColor colorWithRed:0.90f green:0.90f blue:0.90f alpha:1.00f];
} else {
//if failure
but.hidden = YES;
mol.text = #"No Connection";
}
}];
[super viewDidLoad];
}
Pictures:
The button to open the folder:
The folder itself:
The popup:
Thanks in advance.
From the so far discussion and debugging the code you want to have the photo browser on the pop-up with a navigation controller.
So here is the sample code which implements this functionality, have a look at it.
I have used the same KGModal sample code and extended as per the requirement. I have used Xib to have a view with navigation bar.
To dismiss the pop-up from any where in the app you can use the below line, as it is shared instance.
[[KGModal sharedInstance] hideAnimated:YES];
Update:
The reason for showing the photo browser with in folderView is, you are trying to present the photoBrowser within the folderView, so it was presenting within the folderView of very small height & not able to see any photo.
So my suggestion is, as the user taps on pop-up to view photoBrowser you just remove pop-up and present the photoBrowser from the viewController class, as other than this class everything is handled through views.
I have made the changes as per above & works fine, to the code given by you, download the code here and have a look at it.
Let me know if it fulfills your needs.
Thanks
I noticed this line of code:
[[KGModal sharedInstance] showWithContentView: contentView andAnimated: YES];
And I can only think that, since it is a singleton, it adds the contentView on the UIApplication's key window. If that is the case, then a modal view controller will always be below the popup. You can solve this by adding a new method to the KGModal class
- (void) showWithContentView: (UIView*) contentView
inViewController: (UIViewController*) controller
andAnimated: (BOOL) animated;
the method should show the popup in the specified controller's view; you should use that method instead.
Edit
After some more digging, I found that KGModal displays the popup on another window. The quickest fix would be to dismiss the popup, then show the nav controller.
I am using a scrollview to display a viewcontrollers view. if the user reaches the end of the cached views my method reloads the new views. My NSLogs say that the method is finished but it takes additional 5 seconds to display the view.
I think that the [scrollView addSubview:vc.view] is very very slow but I found nothing to improve it.
the whole method gets called in -(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
scrollView.userInteractionEnabled = NO;
UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
[activityIndicator setFrame:CGRectMake((320.f*index)+135.f, 151, 50, 50)];
[activityIndicator setHidesWhenStopped:YES];
[activityIndicator startAnimating];
[scrollView addSubview:activityIndicator];
MBBAppDelegate *delegate = (MBBAppDelegate *)[UIApplication sharedApplication].delegate;
[delegate fetchDealsWithFilter:dealFilter fromIndex:index toIndex:(index+3) onSuccess:^(id object){
MBBDealList *list = object;
int i = 0;
ProductDetailViewController *vc;
for (MBBDeal *deal in [list deals]) {
NSLog(#"start %i",i);
int indexInArray = i;//[list.deals indexOfObject:deal];
if (indexInArray+index >= numDeals) {
return;
}
vc = [[ProductDetailViewController alloc] init];
//fetch the deal and insert
vc.numberOfDeals = numDeals;
vc.dealIndex = index+1+indexInArray;
vc.dealFilter = dealFilter;
vc.deal = deal;
vc.view.frame = CGRectMake(320.f*(index+indexInArray), 0.f, 320.f, 436.f);
[scrollView addSubview:vc.view];
[productDetailViewControllers insertObject:vc atIndex:(index+indexInArray)];
i++;
}
[activityIndicator stopAnimating];
scrollView.userInteractionEnabled = YES;
}];
}
Does anyone know how I can improve my method?
What I can understand from your problem is that, the activity indicator that you have used to show the data fetch process is not used properly.
You data fetch process is still working, even after the activity indicator disappears.
You can do 2 things for that:
ether call the data fetch method in background using performSelectorInBackground method or place the activity indicator in the app delegate where you have created your data fetch method.
I have a page controller and that method pageAction defined like this :
-(void)pageAction:(UIPageControl*)control
{
NSLog(#"page changed");
[self getVehicules];
[self.tableViewVehiculesPossedes release];
int page = pageControlVehiculePossedee.currentPage;
NSLog(#"page %d", page);
[self loadScrollViewWithPage:page];
CGRect frame = pageControlVehiculePossedee.frame;
frame.origin.x = (vosvehiculeScrollView.frame.size.width * page);
[vosvehiculeScrollView scrollRectToVisible:frame animated:YES];
pageControlUsed = YES;
}
Every time I change the page I need to display a tableview with some labels. Here is the code :
- (void)viewDidLoad
{
[super viewDidLoad];
[self getVehicules];
vosvehiculeScrollView.pagingEnabled = YES;
vosvehiculeScrollView.showsHorizontalScrollIndicator = NO;
vosvehiculeScrollView.showsVerticalScrollIndicator = NO;
vosvehiculeScrollView.scrollsToTop = NO;
pageControlVehiculePossedee.numberOfPages=[vehiculesPossede count];
pageControlVehiculePossedee.currentPage=0;
[self loadScrollViewWithPage:0];
[pageControlVehiculePossedee addTarget:self action:#selector(pageAction:) forControlEvents:UIControlEventValueChanged];
votreVehiculeLabel.text=#"Votre véhicule";
vehiculesPossedesArray = [[NSMutableArray alloc] initWithObjects:#"Annee modele", #"Transmission",#"Carburant", nil];
}
- (void) loadScrollViewWithPage: (int) page {
if (page < 0) return;
if (page >= [vehiculesPossede count]) return;
tableViewVehiculesPossedes=[[UITableView alloc] initWithFrame:CGRectMake(3, 80, 315, 171) style:UITableViewStyleGrouped];
tableViewVehiculesPossedes.tag=page;
tableViewVehiculesPossedes.bounces=NO;
tableViewVehiculesPossedes.backgroundColor=[UIColor clearColor];
[tableViewVehiculesPossedes setDelegate:self];
[tableViewVehiculesPossedes setDataSource:self];
[self.vosvehiculeScrollView addSubview:tableViewVehiculesPossedes];
nameVehiculeLabel.text=[[vehiculesPossede objectAtIndex:page] valueForKey:#"modele"];
self.transmissionString=[[vehiculesPossede objectAtIndex:page]valueForKey:#"transmision"];
self.carburantString=[[vehiculesPossede objectAtIndex:page] valueForKey:#"carburant"];
self.anneeModelString=[[vehiculesPossede objectAtIndex:page] valueForKey:#"modele_annee"];
self.anneeString=[[vehiculesPossede objectAtIndex:page]valueForKey:#"annee"];
if(page==0){
NSLog(#"0");
self.transmissionString=#"ttt";
}
else NSLog(#"1");
}
The problem is that even I put [self.tableViewVehiculesPossedes release]; on the change page method, the tableView appear overlay and the text from labels are overlay. What can I do with the tableview to make it dissapear when a new page will be display?
Please help me..I spent a lot of time with this :|
If I get it correctly I think you should keep an ivar to the table you create with the alloc in loadScrollViewWithPage, and when switching page you should removing it from the view by calling :
[mytableview removeFromSuperview];
And most likely your should take care of releasing it as well as I can't see it in your code.
I want to show the activity indicator on tap gesture and also navigate from current viewcontroller to next viewcontroller I have written code on tap gesture method my code is -
- (void)tapToAutoFocus:(UIGestureRecognizer *)gestureRecognizer
{
textLabel.hidden = YES;
indicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(140, 150, 30, 30)];
[indicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhiteLarge];
[self.view addSubview:indicator];
[indicator startAnimating];
AccountAnfordernViewController *accountAnfordernViewController = [[AccountAnfordernViewController alloc]init];
[self.navigationController pushViewController:accountAnfordernViewController animated:YES];
[accountAnfordernViewController release];
}
It navigates to next view controller but indicator are not showing, I want when it navigate to nextviewcontroller at that time indicator also should be show for some time and then navigate to next view controller. What should I do for that?
I suspect you need to do something like this:
- (void)tapToAutoFocus:(UIGestureRecognizer *)gestureRecognizer
{
textLabel.hidden = YES;
indicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(140, 150, 30, 30)];
[indicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhiteLarge];
[self.view addSubview:indicator];
[indicator startAnimating];
[self performSelector:#selector(pushAccountAnfordern) withObject:nil afterDelay: 0.1];
}
- (void) pushAccountAnfordern;
{
AccountAnfordernViewController *accountAnfordernViewController = [[AccountAnfordernViewController alloc]init];
[self.navigationController pushViewController:accountAnfordernViewController animated:YES];
[accountAnfordernViewController release];
}
You can vary the delay. And, indeed, 0.0 may be just fine. This way of doing it lets the current run loop end, giving a chance for the spinner to start showing before starting the next bit of code. For a different approach (with potential side effects) to forcing the spinner to start before the current run loop ends this this SO question.
i am using the simple alert view with two buttons names as ok,cancel.
when ever i press ok,cancel alert view quits as general.
But i need when ever i click alert view ok button with out quit alert view activity indicator
will run for 2 min on the same alert view and quit. when ever i click cancel it quits normally.
can any one please help me.
Thank u in advance.
You can modify the UI control events for the OK button, so that your own event handler is called for that button and the alert view won't be dismissed until the long-running task has finished.
In that event handler attach an activity indicator to the view and start your task asynchronously using GCD.
#import <dispatch/dispatch.h>
// ...
UIAlertView* alert = [[UIAlertView alloc] initWithTitle:#"Test" message:#"Message" delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles:#"OK" ,nil];
for (UIView *subview in alert.subviews)
{
if ([subview isKindOfClass:[UIControl class]] && subview.tag == 2) {
UIControl* button = (UIControl*) subview;
[button addTarget:self action:#selector(buttonOKPressed:) forControlEvents:UIControlEventTouchUpInside];
[button removeTarget:alert action:nil forControlEvents:UIControlEventAllEvents];
}
}
[alert show];
[alert release];
// ...
-(void) buttonOKPressed:(UIControl*) sender {
[sender removeTarget:self action:nil forControlEvents:UIControlEventAllEvents];
UIAlertView* alert = (UIAlertView*)[sender superview];
CGRect alertFrame = alert.frame;
UIActivityIndicatorView* activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
activityIndicator.frame = CGRectMake(0,alertFrame.size.height, alertFrame.size.width,30);
activityIndicator.hidden = NO;
activityIndicator.alpha = 0.0;
activityIndicator.contentMode = UIViewContentModeCenter;
[activityIndicator startAnimating];
[alert addSubview:activityIndicator];
[activityIndicator release];
[UIView animateWithDuration:0.3 animations:^{
alert.frame = CGRectMake(alertFrame.origin.x, alertFrame.origin.y, alertFrame.size.width, alertFrame.size.height+50);
activityIndicator.alpha = 1.0;
}];
//alert.userInteractionEnabled = NO; // uncomment this, if you want to disable all buttons (cancel button)
dispatch_async(dispatch_get_global_queue(0,0), ^{
[NSThread sleepForTimeInterval:5]; // replace this with your long-running task
dispatch_async(dispatch_get_main_queue(), ^{
if (alert && alert.visible) {
[alert dismissWithClickedButtonIndex:alert.firstOtherButtonIndex animated:YES];
}
});
});
}