ScrollsToTop is not working when UIVeiwController is presented from ios8 extension.
But it is working if we presented it from inside the app. Can anyone help? sample code is shared here.
UIScrollView * scrollview = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, 320, 300) ];
[scrollview setContentSize:CGSizeMake(320, 800)];
scrollview.layer.borderWidth = 1.0;
scrollview.backgroundColor =[UIColor redColor];
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"slide1"]];
[scrollview addSubview:imageView];
scrollview.showsVerticalScrollIndicator =YES;
scrollview.scrollsToTop = YES;
scrollview.delegate = self;
UIViewController *a = [[UIViewController alloc] init];
a.view.backgroundColor = [UIColor greenColor];
[a.view addSubview:scrollview];
[self presentViewController:a animated:YES completion:^{
}];
I had same issues & resolved using code bellow.
Some change has done in xcode6. Try this code to make scrollview to top.
[self.ScrollView setContentOffset:CGPointMake(0.0, 0.0) animated:YES];
Related
Everything works well in iOS 9.
But in iOS 8, the content is not displayed, only imageview is showed.
What i did is that I create a view and add label and UIImage to that view. Then that view is added to contentView of table Cell
create View
- (UIView *)getHeaderView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.frame.size.width, HEADER_SECTION_HEIGHT)];
[view setBackgroundColor:[[RNThemeManager sharedManager] colorWithHexString:[_themeComponent valueForKey:#"Layer1Color"]]];
UILabel *taskName = [[UILabel alloc] initWithFrame:CGRectMake(5.0, SECTION_BREAK+3.0, view.frame.size.width-23.0, 20)];
[taskName setFont:[UIFont boldSystemFontOfSize:[[_themeComponent valueForKey:#"RegularFontSize"] intValue]]];
[taskName setText:combinedTask.taskDescription];
[taskName setTextColor: [[RNThemeManager sharedManager] colorWithHexString:[_themeComponent valueForKey:#"textPrimary"]]];
[view addSubview:taskName];
UIImageView *addressView = [[UIImageView alloc]initWithFrame:CGRectMake(5.0, SECTION_BREAK+28.0, 20, 20)];
addressView.image = [UIImage imageNamed:[NSString stringWithFormat:#"%#.png", #"Attr_Pin"]];
[view addSubview:addressView];
UILabel *address = [[UILabel alloc] initWithFrame:CGRectMake(35.0, SECTION_BREAK+23.0, view.frame.size.width-35.0, 30)];
[address setFont:[UIFont boldSystemFontOfSize:[[_themeComponent valueForKey:#"SmallFontSize"] intValue]]];
address.lineBreakMode = NSLineBreakByWordWrapping;
address.numberOfLines = 0;
[address setText:[NSString stringWithFormat:#"%#", unit]];
[address setTextColor: [[RNThemeManager sharedManager] colorWithHexString:[_themeComponent valueForKey:#"textPrimary"]]];
[view addSubview:address];
return view;
}
Add view to table cell
UIView *header= [self getHeaderView:tableView viewForHeaderInSection:section];
cell.taskIdLabel.hidden = YES;
[cell.contentView addSubview:header];
Anyone has any ideas? Thanks much for your help.
This is because iOS 9 Apple handle good autolayout than before.
Let add [cell layoutIfNeeded] before return cell.
Update
I have same problem before. Here is block of code that i use to solved my problem.
- (void) sizeHeaderToFit {
//call in viewLayoutSubView
UIView *myHeaderView = self.tableView.tableHeaderView;
[myHeaderView setNeedsLayout];
[myHeaderView layoutIfNeeded];
CGFloat height = [myHeaderView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize].height;
myHeaderView.frame = ({
CGRect headerFrame = myHeaderView.frame;
headerFrame.size.height = height;
headerFrame;
});
self.tableView.tableHeaderView = myHeaderView;
}
call it at viewDidLayoutSubView. Hope it helps bạn :))
I have important problem with UIScrollView.
I want to make one app like yahoo weather and using this source code : BTGlassScrollView
in this source code exist one view with name "foregroundView" that is info view. this info view appear when scrolling my ScrollView from bottom to top.
now I make and add my ScrollView by this code:
_viewScroller = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width + 2*blackSideBarWidth, self.view.frame.size.height)];
[_viewScroller setPagingEnabled:YES];
[_viewScroller setDelegate:self];
[_viewScroller setShowsHorizontalScrollIndicator:NO];
[self.view addSubview:_viewScroller];
_glassScrollView1 = [[BTGlassScrollView alloc] initWithFrame:self.view.frame BackgroundImage:[UIImage imageNamed:#"background3"] blurredImage:nil viewDistanceFromBottom:0 foregroundView:[self customView]];
[_viewScroller addSubview:_glassScrollView1];
in my code I write [self customView] that make me info view and this is customView function:
- (UIView *)customView {
//this method is for make UITableView
[self makeTableBuy:[[self.tableDic objectForKey:#"person"] count]];
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, _tableBuy.frame.size.width, _tableBuy.frame.size.height)];
view.layer.cornerRadius = 3;
view.backgroundColor = [UIColor colorWithWhite:0 alpha:.3];
[view addSubview:_tableBuy];
return view;
}
- (UITableView*)makeTableBuy:(int)numberOfRow {
_tableBuy = [[UITableView alloc] initWithFrame:CGRectMake(0,0,self.view.frame.size.width,numberOfRow*TABLE_HEIGHT) style:UITableViewStyleGrouped];
[_tableBuy setTag:1];
[_tableBuy setBackgroundColor:[UIColor clearColor]];
_tableBuy.showsVerticalScrollIndicator = NO;
_tableBuy.separatorStyle = UITableViewCellSeparatorStyleNone;
_tableBuy.rowHeight = TABLE_HEIGHT;
_tableBuy.scrollEnabled = NO;
_tableBuy.delegate = self;
_tableBuy.dataSource = self;
return _tableBuy;
}
now When I'm scrolling my ScrollView my info view (my tableview) moving to top and appear but my scrolling have so lagging.
please guide me how to fix this lag???
I have a UIPopovercontroller.
Presenting it using this way.
BackupPop *backupPop = [[BackupPop alloc] initWithNibName:nil bundle:[NSBundle mainBundle]];
backupPop.delegate = self;
backupPop.navigationItem.title = [Language get2:#"Backup"];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:backupPop];
assigningBackupRow = button.tag;
backupPopController = [[UIPopoverController alloc] initWithContentViewController:navController];
backupPopController.popoverContentSize = CGSizeMake(200, 150);
CGRect rect = CGRectMake(button.frame.origin.x, button.frame.origin.y + 20 + (button.tag - 30000) * 44, button.frame.size.width, button.frame.size.height);
[backupPopController presentPopoverFromRect:rect inView:backupTable permittedArrowDirections:UIPopoverArrowDirectionRight animated:YES];
In the UIPopovercontroller, I have a UITableView in viewdidload.
funcTable = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 200, 80) style:UITableViewStylePlain];
[funcTable setDelegate:self];
[funcTable setDataSource:self];
[funcTable setRowHeight:44];
[funcTable setBackgroundColor:[UIColor clearColor]];
[self.view addSubview:funcTable];
The problem in iOS8, although my UITableView is 80px in height, it shows up as 40px only.
The starting position of the UITableView is right, but the height is not. Now, I have to put 120px as height to all of the UITableView that is in UIPopoverController. No such issue in iOS7.
Guys, any idea? Thanks.
Try this
iOS 8 has new PopOverController called UIPopoverPresentationController
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UINavigationController *navController = [storyboard instantiateViewControllerWithIdentifier:#"Terms_NC"];
navController.preferredContentSize = CGSizeMake(300, 290);
// Present the view controller using the popover style.
navController.modalPresentationStyle = UIModalPresentationPopover;
[self presentViewController:navController animated: YES completion: nil];
// Get the popover presentation controller and configure it.
UIPopoverPresentationController *presentationController =
[navController popoverPresentationController];
presentationController.permittedArrowDirections =0;
presentationController.sourceView = self.view;
presentationController.sourceRect = CGRectMake(100, 100, 300, 340);
i had the same problem. what i did was i explicitly set the size of tableview again just before i was presenting my popover.
[backupPop adjustFrame];
backupPopController.popoverContentSize = backupPop.view.frame.size;
[backupPopController presentPopoverFromRect:rect inView:backupTable permittedArrowDirections:UIPopoverArrowDirectionRight animated:YES];
and you can add a method in backupPop
- (void)adjustFrame {
CGRect frame = self.view.frame;
frame.size.height = 80
frame.size.width = 200;
self.view.frame = frame;
}
Lemme know if it helps.
May be its workaround set the content size after little delay.
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.01 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self.popoverController setPopoverContentSize:CGSizeMake(300, 340) animated:YES];
});
I have a class called PhotoBoothController that I use to manipulate an image using gestures. It works fine when I run it on iPhone. However when I run it on iPad, I display the PhotoBoothController inside a UIPopoverController. The image appears fine, however I can't manipulate it as my gestures don't appear to be recognized. I'm not sure how to make the UIPopoverController take control of the gestures.
I present the popovercontroller and configure the view thus:
- (void)presentPhotoBoothForPhoto:(UIImage *)photo button:(UIButton *)button {
//Create a photoBooth and set its contents
PhotoBoothController *photoBoothController = [[PhotoBoothController alloc] init];
photoBoothController.photoImage.image = [button backgroundImageForState:UIControlStateNormal];
//set up all the elements programmatically.
photoBoothController.view.backgroundColor = [UIColor whiteColor];
//Add frame (static)
UIImage *frame = [[UIImage imageNamed:#"HumptyLine1Frame.png"] adjustForResolution];
UIImageView *frameView = [[UIImageView alloc] initWithImage:frame];
frameView.frame = CGRectMake(50, 50, frame.size.width, frame.size.height);
[photoBoothController.view addSubview:frameView];
//Configure image
UIImageView *photoView = [[UIImageView alloc] initWithImage:photo];
photoView.frame = CGRectMake(50, 50, photo.size.width, photo.size.height);
photoBoothController.photoImage = photoView;
//Add canvas
UIView *canvas = [[UIView alloc] initWithFrame:frameView.frame];
photoBoothController.canvas = canvas;
[canvas addSubview:photoView];
[canvas becomeFirstResponder];
[photoBoothController.view addSubview:canvas];
[photoBoothController.view bringSubviewToFront:frameView];
//resize the popover view shown in the current view to the view's size
photoBoothController.contentSizeForViewInPopover = CGSizeMake(frameView.frame.size.width+100, frameView.frame.size.height+400);
self.photoBooth = [[UIPopoverController alloc] initWithContentViewController:photoBoothController];
[self.photoBooth presentPopoverFromRect:button.frame
inView:self.view
permittedArrowDirections:UIPopoverArrowDirectionAny
animated:YES];
}
I thought [canvas becomeFirstResponder] might do it but it doesn't appear to make a difference.
Any advice much appreciate, thank you.
UPDATE: adding code as per comment
- (void)viewDidLoad {
[super viewDidLoad];
if (!_marque) {
_marque = [CAShapeLayer layer];
_marque.fillColor = [[UIColor clearColor] CGColor];
_marque.strokeColor = [[UIColor grayColor] CGColor];
_marque.lineWidth = 1.0f;
_marque.lineJoin = kCALineJoinRound;
_marque.lineDashPattern = [NSArray arrayWithObjects:[NSNumber numberWithInt:10],[NSNumber numberWithInt:5], nil];
_marque.bounds = CGRectMake(photoImage.frame.origin.x, photoImage.frame.origin.y, 0, 0);
_marque.position = CGPointMake(photoImage.frame.origin.x + canvas.frame.origin.x, photoImage.frame.origin.y + canvas.frame.origin.y);
}
[[self.view layer] addSublayer:_marque];
UIPinchGestureRecognizer *pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:#selector(scale:)];
[pinchRecognizer setDelegate:self];
[self.view addGestureRecognizer:pinchRecognizer];
UIRotationGestureRecognizer *rotationRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:#selector(rotate:)];
[rotationRecognizer setDelegate:self];
[self.view addGestureRecognizer:rotationRecognizer];
UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(move:)];
[panRecognizer setMinimumNumberOfTouches:1];
[panRecognizer setMaximumNumberOfTouches:1];
[panRecognizer setDelegate:self];
[canvas addGestureRecognizer:panRecognizer];
UITapGestureRecognizer *tapProfileImageRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(tapped:)];
[tapProfileImageRecognizer setNumberOfTapsRequired:1];
[tapProfileImageRecognizer setDelegate:self];
[canvas addGestureRecognizer:tapProfileImageRecognizer];
}
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
return ![gestureRecognizer isKindOfClass:[UIPanGestureRecognizer class]] && ![gestureRecognizer isKindOfClass:[UITapGestureRecognizer class]];
}
I am working on a similar application, and i can easily manipulate images on the canvas.
1) Check if the userInteractionEnabled property of the canvas is set to YES.
2) You can try adding the gestures to the ImageView's rather than the canvas. (I am guessing u want to zoom , rotate n swipe the images).
some guesses:
is this because viewDidLoad method have been called before cavas property been set? In this case, you could try to add recognizers after present popover in another method such as viewDidAppear.
I also agree that the key may be that UIPopoverController allows interaction to other views outside of the popover. So i suggest to move [canvas becomeFirstResponder]; to the end of the viewDidLoad method in PhotoBoothController and try self.view becomeFirstResponder here because you actually add recognizers to self.view.
I used the below codes
CGRect scrollserviceViewFrame1 = CGRectMake(60,610, 650, 150);
//CGRect scrollViewFrame =[[UIScreen mainScreen] applicationFrame];
//UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:scrollViewFrame];
UIScrollView *servicescrollView1 = [[UIScrollView alloc] initWithFrame:scrollserviceViewFrame1];
[self.view addSubview:servicescrollView1];
//scrollView.backgroundColor=[UIColor greenColor];
[servicescrollView1 setBackgroundColor:[UIColor redColor]];
[servicescrollView1 setCanCancelContentTouches:NO];
//scrollView.indicatorStyle = UIScrollViewIndicatorStyleBlack;
servicescrollView1.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview
servicescrollView1.scrollEnabled = YES;
servicescrollView1.autoresizesSubviews=YES;
[servicescrollView1 setContentSize: CGSizeMake(1050, 100)];
//scrollView.delegate = self;
servicescrollView1.pagingEnabled = YES;
servicescrollView1.showsHorizontalScrollIndicator = NO;
[servicescrollView1 scrollRectToVisible:CGRectMake(servicescrollView1.frame.size.width, 0, self.view.frame.size.width, self.view.frame.size.height) animated:YES];
NSLog(#" scroll view width :%i ",servicescrollView1.frame.size.width);
NSLog(#"scroll view height :%i ",self.view.frame.size.height);
NSLog(#"self view width :%i",self.view.frame.size.width);
CGRect CGRectZero = CGRectMake(60,710,200, 100);
UIView* myserviceView1 = [[UIView alloc] initWithFrame: CGRectZero];
myserviceView1.backgroundColor=[UIColor blackColor];
[servicescrollView1 addSubview:myserviceView1];
[myserviceView1 release];
[servicescrollView1 release];
The scroll view is created , butcannot add the UIVIew to scrollview...
Any suggestions for solving this query???
Thanks in advance
Near the bottom of your code where you create myserviceView1, you (attempt to) reset a constant (CGRectZero).
And then when you create your myserviceView1 UIView, you're giving it a frame size of {0, 0, 0, 0}.