In my.m file:
#synthesize ListLearnTab;
...........
- (void)viewDidLoad
{
[super viewDidLoad];
ListLearnTab.frame=CGRectMake(0, 0, 320, 416);
}
where ListLearnTab I declared in .h as:
#property (weak, nonatomic) IBOutlet UITableView *ListLearnTab;
I spend many hours and don't know why TableView doesn't want resize. I put this ListLearnTab.frame=CGRectMake(0, 0, 320, 416); in many places, but TableView stay as I declare in Xcode (manualy).
I had the same problem, I think. I set the size of the table in the code, like you. I could see it on the story board. The prototype cell looked correct, but only seemed to go halfway across the table when the app ran. I dragged the entire view controller out bigger on the storyboard, clicked on the view itself and dragged it out, then clicked on the table and did the same. If I recall, I changed the widths of everything in the inspector to make them larger than the frame specification in viewDidLoad.
I got everything working. Sorry about not remembering the exact step that solved the problem.
If that's the same as your trouble, how this helps! -Rob
Related
update 2
viewDidAppear is executed twice, once before and once after, the overlay button is touched. Would a fix be to add a conditional to viewDidAppear which would return control to the calling class? If so, I would appreciated suggestions. Or maybe the very fact that viewDidAppear execute twice suggests another approach to a fix?
update 2
update 1
Maybe the problem is my usage of viewDidAppear and viewDidLoad shown below. Can anyone help, please?
- (void)viewDidAppear:(BOOL)animated
{
self.overlayViewController = [[BSsetupOverlayViewController alloc] initWithNibName:#"BSsetupOverlayViewController" bundle:nil] ;
// as a delegate we will be notified when pictures are taken and when to dismiss the image picker
self.overlayViewController.delegate = self;
[self showImagePicker:UIImagePickerControllerSourceTypeCamera];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
update 1
update 0
Perhaps I was not clear that the difference between the version that does not work and the one that does is that Storyboard is used in the one that does not work. Why would a done button work without Storyboard, but not with, even though only a nib is involved with the overlay?
update 0
The UIButton here was able to dismiss the camera preview, but in my actual app, tapping the UIButton only temporarily dismisses the preview and overlay screen. Immediately the preview returns. I think the problem is with the way I am implementing the delegate to the UIImagePicker, but I may be wrong.
I have created setup.zip here which contains a sample project with the undesirable behavior.
I took this question to the North Atlanta iOS Meetup and suggested that a conditional clause might fix the problem, as I mentioned in update 2 of the question. The founder of the Meetup, Kurt Niemi, quickly showed how to do so by editing the BSsetupViewController class.
First he added a Boolean property to the interface.
#property (nonatomic, assign) BOOL alreadyDisplayed;
Second he added a clause to the viewDidAppear method.
if (self.alreadyDisplayed)
{
self.alreadyDisplayed = FALSE;
[self dismissViewControllerAnimated:NO completion:nil];
return;
}
self.alreadyDisplayed = TRUE;
And last he added a slight unnecessary clause to the viewDidLoad method.
self.alreadyDisplayed = FALSE;
I still wish these steps were unnecessary, but they seem to work.
hi i have a uiscrollview that i have 4 images with buttons laid out vertically in storyboard, i have paging enabled but it skips most of the images and snaps onto the last one.Is there a way to make it stop on each fullscreen image without loading a bunch of uiviews?
here is the code i already have its pretty basic.
.h
IBOutlet UIScrollView *scroller2;
}
#property (nonatomic, strong) IBOutlet UIScrollView *scroller2;
#end
.m
#synthesize scroller2;
[scroller2 setContentSize:CGSizeMake(320, 3543) ];
scroller2.pagingEnabled = YES;
I dont have enough rep to post a comment so an answer will have to suffice.
I was having problems replicaing your problem so I was wondering please if you could post the size of your imageViews inside the scrollView. Also are you loading the images from the web somewhere or are they just local images?
The way paging enabled works is that it assumes that every "page" or imageview and picture in your case is right next to each other with no gaps. It calculates the pages simply by adding whatever the screen size of the device is and snapping to that next point. When you say its skipping some photos do you mean that it is snapping to halfway down a photo in some cases or just skipping right to the end?
If you try and lay everything out right underneath each other in blocks of 480px then paging enabled should work for you.
Hope this is of some help, let me know how you get on
I have a UIViewController that has an image and label at the top followed by a UITableView. In the IB it looks perfect, but when I run the application in the simulator the UITableView is stretching and taking up the entire screen.
I've turned off all autosizing and set all of the values for stretching to 0, but it's still taking up the entire screen. I even tried some advice I saw on another post which suggested putting the UITableView in a UIView that was sized, but that did not work either.
Any suggestions on how to stop the UITableView from resizing and filling the screen? I am running XCode 4.2.1 with iOS5.
You can give frame size to your tableView like this-
1) make your tableView's IBOutlet property in .h class, and synthesize in .m class.
2) connect it in Xib.
3) than in your .m class place this code in viewDidLoad-
tblView.frame = CGRectMake(0.0f, 30.0f, 320.0f, 50.0f); // you can give any size to your table
I am new to iOS Development and am wondering how to put a scrollview in a storyboard, using Xcode 4.2. I want the content to be 1280 by 460. This code all works well, but when I go to wire up the outlet, there is no file's owner, so i'm stumped. Here is the code I have:
in the .h file-
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController {
IBOutlet UIScrollView *scrollView;
}
#end
and the .m, under viewDidLoad:
- (void)viewDidLoad
{
[scrollView setScrollEnabled:YES];
[scrollView setContentSize:CGSizeMake(1280,460)];
[scrollView setPagingEnabled:YES];
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
If anyone could help me, that would be great!
Storyboards do not have a File's Owner. You need to use the View Controller to connect the Outlets instead. I.E. Drag to the View Controller in the same way you used to drag to the File's Owner.
OK, I figured it out. I just had to create a class for my view controller. I was trying to use files that were not part of a class that was a subclass of UIViewController.I had to create a new class, then copy the old code in and make my view controller's class that of the NEW files, and THEN wire up the outlets. I was changing the class to something that was not there. I then wired my outlet up to the scroll view I wanted. Thankfully, that part is finally over! Thanks for the suggestions, guys, I really appreciate it.
A good visual tutorial is in the current Stanford CS193p course for iOS 5 in iTunes U.
This course works mainly with storyboards and they cover among other things UIScrollViews
i am currently trying to do a bar graph in XCode. I have tried CPGraph and all the stuff around but they are all out of date and i need help for XCode 4. I am completely newb with this and that's why i need your help.
Here is my code:
-(void)drawRect:(CGRect)rect
{
NSString *s = textField.text;
value = [s intValue];
NSLog(#"%i",value);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetLineWidth(context, 60);
CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
CGFloat components[] = {0.0, 0.0, 1.0, 1.0};
CGColorRef color = CGColorCreate(colorspace, components);
CGContextSetStrokeColorWithColor(context, color);
CGContextMoveToPoint(context, 400, value);
CGContextAddLineToPoint(context, 400, 100);
CGContextStrokePath(context);
CGColorSpaceRelease(colorspace);
CGColorRelease(color);
}
Notice that i have changed one of the point value for "value".
What i have done is create a UITextField and i want to be able to write like 500 in the UITextField and that the bar adjust itself. Currently the NSLog tell me that value is equal to 0 even if, before building my app i manually enter a number in the TextField.
I have been searching fo 3 days now and everything i found give me errors and are incomplete as i says i know almost nothing about objective-c in xcode. I also noticed during my search that this type of line doesn't refresh real time if you dont tell him. I would like help with that too if that's part of my problem. If you want more information on my code just tell me.
I will be really grateful if somebody can help me.
here is my .h :
#interface draw2D : UIView
{
UITextField *textField;
}
#property (nonatomic, retain) IBOutlet UITextField *textField;
#end
OK, it looks like since you have your text field hooked up in IB to File's Owner, that is typically your app delegate which is not the class you have above as that is a UIView. So, not unless you changed File's Owner to this UIView then your text field is not hooked up. So, typically what I do is to add a UIView to the xib window in IB (if you are not using the one that comes free when you create a XIB). Then that is what I'll attach the text box to, not File's Owner. Kind of begs the question of how anything is attached to Files Owner not unless you have a UITextField declared in there too (again providing you didn't change the class from the app delegate to this view class).
I know that if someone is new to this is is almost like greek. I developed in Java, C/C++, C#, etc for years and this was like learning how to program all over again.
If you are new to this I highly suggest the iPhone dev book by Big Nerd Ranch. I found it very useful.
OK, I found out how to redraw my line with a button refresh.
What I did was create a button and link it with my UIView where my line is being drawn. Inside I wrote [self setNeedsDisplay]; and each time I click the button it refreshes the view and gives me back my NSlog that I set in the same method as my drawRect.
Many thanks again Merky.