I want to add some UILabels on top of my UIImagePickerController's custom OverlayView but can't seem to get it working.
Here is my code.
-(IBAction)getPhoto:(id)sender{
picker = [[UIImagePickerController alloc] init];
picker.allowsEditing = NO;
picker.sourceType = UIImagePickerControllerSourceTypeCamera ;
picker.showsCameraControls = NO;
self.picker.navigationBarHidden = YES;
self.picker.toolbarHidden = YES;
OverlayView = [[OverlayView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,1024)];
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(OverlayView.frame.size.height/2, OverlayView.frame.size.width/2, 30, 100)];
label.textColor = [UIColor whiteColor];
label.text = #"find Me";
[self.OverlayView addSubview:label];
[self.OverlayView bringSubviewToFront:label];
picker.cameraOverlayView = OverlayView;
CGSize screenSize = [[UIScreen mainScreen] bounds].size; // 320 x 568
float scale = screenSize.height / screenSize.width*3/4; // screen height divided by the pickerController height ... or: 568 / ( 320*4/3 )
CGAffineTransform translate=CGAffineTransformMakeTranslation(0,(screenSize.height - screenSize.width*4/3)*0.5);
CGAffineTransform fullScreen=CGAffineTransformMakeScale(scale, scale);
picker.cameraViewTransform =CGAffineTransformConcat(fullScreen, translate);
[self presentViewController: picker animated:YES completion:NULL];
}
the overview shows up and it is full screen but no label
any ideas
Your label is just offscreen, check its frame
You can place it for instance like that, at least it will be visible
self.overlayView = [[OverlayView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(self.overlayView.frame.size.width/2, self.overlayView.frame.size.height/2, 30, 100)];
Related
I am creating a UI that the user can page through multiple views by using a UIScrollView. I create the UIView objects in code and add them to UIScrollView. I use the code below to create the views.
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
UIView *brandView = [[UIView alloc] initWithFrame:frame];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 50.0, frame.size.width, 30)];
label.text = [brand objectForKey:#"name"];
label.textAlignment = UITextAlignmentCenter;
label.backgroundColor = [UIColor redColor];
[brandView addSubview:label];
UIImageView *logoImageView = [[UIImageView alloc] init];
logoImageView.frame = CGRectMake(20.0, 100.0, 280.0, 300.0);
[brandView addSubview:logoImageView];
logoImageView.file = [brand objectForKey:#"logo"];
[logoImageView loadInBackground];
Although I give 50.0 for the y coordinate for the label, I can't see the label at all when I run the app. And logoImageView has 100.0 for its top but it appears just below the status bar, as if it had 0.0 for it's y coordinate.
What is the reason for this strange behaviour, am I doing something wrong?
Note: Auto layout for the UIScrollView is disabled on IB.
Below code will work for you !
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * 10;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
UIView *brandView = [[UIView alloc] init]; // CHANGE THAT HAS TO BE DONE
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 50.0, self.scrollView.frame.size.width, 30)];
label.text = #"Test";
label.textAlignment = UITextAlignmentCenter; // DEPRECATED IN iOS 6.0
label.backgroundColor = [UIColor redColor];
[brandView addSubview:label];
[self.scrollView addSubview:brandView];
I have two views in my program. One is statusView, it's alpha is set to 0.8f. And below it is tableView. How do I disable statusView such way, that clicking on it would not click tableView. Settings userInteractionEnabled = false; didn't help.
Here is how i add views.
[self.view addSubview:_builded.view]; // obj with my tableView
info = [[Info alloc] init];
[self.view addSubview:info.view]; // statusView
If you add a subview like the following, the tableView underneath would not catch the user interaction.
UITableView *testTableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
testTableView.delegate = self;
testTableView.dataSource = self;
[self.view addSubview:testTableView];
UIView *statusView = [[UIView alloc] initWithFrame:CGRectMake(20, 20, 200, 200)];
statusView.backgroundColor = [UIColor redColor];
statusView.alpha = 0.8;
[self.view addSubview:statusView];
I'm developing a Notification Center plugin, and I'm having trouble with UITapGestureRecognizer. I have a UIScrollView, With UIViews acting as a wrapper for my two UILabels in it.
The selector I attached to the UITapGestureRecognizer is never called, and I have no idea why.
EDIT: okay, now it works, but only for the last element in the UIScrollView. I guess it's because I'm using the same UILabel in the loop. What should I do?
- (UIView *)view
{
if (_view == nil)
{
self.aArray = [self.connector refreshData];
_view = [[UIView alloc] initWithFrame:CGRectMake(2, 0, 316, 110)];
//setting the background
UIImage *bg = [[UIImage imageWithContentsOfFile:#"/System/Library/WeeAppPlugins/NCAppline.bundle/WeeAppBackground.png"] stretchableImageWithLeftCapWidth:5 topCapHeight:10];
UIImageView *bgView = [[UIImageView alloc] initWithImage:bg];
bgView.frame = CGRectMake(0, 0, 316, 110);
[_view addSubview:bgView];
//creating the scrollview
UIScrollView *scrView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
UITapGestureRecognizer *linkTappedRec = [[UITapGestureRecognizer alloc]
initWithTarget: self
action: #selector(articleTap:)];
linkTappedRec.numberOfTapsRequired = 1;
linkTappedRec.enabled = YES;
linkTappedRec.cancelsTouchesInView = YES;
//getting the number of pages required
NSInteger viewcount = [self.aArray count]/3;
for (int i = 0; i <viewcount; i++)
{
CGFloat y = i * self.view.frame.size.width;
UILabel *lbl1 = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 306, 23)];
/* setting bunch of properties */
UILabel *lbl2 = [[UILabel alloc] initWithFrame:CGRectMake(10, 25, 288, 85)];
/* setting bunch of properties */
//this will be the container
UIView *vview = [[UIView alloc] initWithFrame:CGRectMake(y, 0, self.view.frame.size.width, self.view.frame.size.height)];
[vview addSubview:lbl1];
[vview addSubview:lbl2];
vview.tag = i*3+2;
[vview addGestureRecognizer:linkTappedRec];
vview.userInteractionEnabled = YES;
[scrView addSubview:vview];
}
scrView.contentSize = CGSizeMake(self.view.frame.size.width *viewcount, self.view.frame.size.height);
scrView.pagingEnabled = YES;
[_view addSubview:scrView];
}
return _view;
}
- (void)articleTap:(UITapGestureRecognizer *)sender {
NSLog("tap");
}
I am trying to add uipickerview in uiscrollview, but it is not being shown properly, just a black square.
Further, I have to add 1 more uipickerview, some labels and some buttons.
The code I am using is as under:
-(void)loadView {
[super loadView];
UIPickerView *pView = [[UIPickerView alloc] initWithFrame:CGRectMake(20, 20, 280, 165)];
self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"Background.png"]];
scroller = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
scroller.pagingEnabled = YES;
NSInteger numberOfViews = 2;
for (int i = 0; i < numberOfViews; i++) {
CGFloat yOrigin = i * self.view.frame.size.height;
UIView *awesomeView = [[UIView alloc] initWithFrame:CGRectMake(yOrigin, 0, self.view.frame.size.width, self.view.frame.size.height)];
// awesomeView.backgroundColor = [UIColor colorWithRed:0.5/i green:0.5 blue:0.5 alpha:1];
[scroller addSubview:awesomeView];
[scroller addSubview:pView];
}
scroller.contentSize = CGSizeMake(self.view.frame.size.width , self.view.frame.size.height * numberOfViews);
[self.view addSubview:scroller];
}
what can be the issue?
Are you putting data in the picker view? I mean, if you just put the picker view without data on it you are not going to see anything on it.
You need to add the delegate and the datasource and put some data in your picker!
pView.delegate = self;
pView.datasource = self;
and then you have to implemente at least:
numberOfComponentsInPickerView:
numberOfRowsInComponent:
titleForRow:
make sure you are implementing uipickerviewdelegate methods. its normal that it will show just the black square because your pickerview cant find the data and thus does not display anything.
UIPickerView *pView = [[UIPickerView alloc] initWithFrame:CGRectMake(20, 20, 280, 165)];
Change height to 216 .. UIPickerView has fixed height of 216 ..only.. you can't change it..
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}.