I am using UIPageController for switching among pages. But some reason it is unable to focus on page indicator in Accessibility mode. Below are the way I am implementing:
CGRect rect = [self.view bounds];
rect.size.height+=37;
[[self.pageController view] setFrame:rect];
NSArray *subviews = self.pageController.view.subviews;
for (int i=0; i<[subviews count]; i++) {
if ([[subviews objectAtIndex:i] isKindOfClass:[UIPageControl class]])
{
//self.pageControl = (UIPageControl *)[subviews objectAtIndex:i];
UIView *pv = [subviews objectAtIndex:i];
CGRect frame = pv.frame;
[pv removeFromSuperview];
[self.pageControl setFrame:frame];
self.pageControl.isAccessibilityElement = YES;
self.pageControl.accessibilityTraits = UIAccessibilityTraitAdjustable;
self.pageControl.accessibilityHint = #"Page Indicator";
//[self.pageController.view addSubview:self.pageControl];
}
}
UIView *pageControlBaseView = [[UIView alloc] initWithFrame:CGRectMake(0, [Utilities is_iPad] ? PAGECONTROL_POSITION_IPAD: PAGECONTROL_POSITION_IPHONE, PAGECONTROL_BASEVIEW_WIDTH, PAGECONTROL_BASEVIEW_HEIGHT)];
[pageControlBaseView addSubview:self.pageControl];
pageControlBaseView.isAccessibilityElement = YES;
self.pageControl.pageIndicatorTintColor = [UIColor grayColor];
self.pageControl.currentPageIndicatorTintColor = [UIColor whiteColor];
[self.view addSubview:pageControlBaseView];
Related
I am creating a class, that creates an option bar with multiple scroll views accessible by buttons.
This is how I add the subview with its content:
NSArray *scroll1 = [NSArray arrayWithObjects:#"normal",#"tiltshift",#"zoom",#"normal",#"blur",#"outline",#"coming soon", nil];
NSArray *scroll2 = [NSArray arrayWithObjects:#"Emoji Natur-01",#"Emoji Natur-02",#"Emoji Natur-03",#"Emoji Natur-04",#"Emoji Natur-05",#"Emoji Natur-06",#"Emoji Natur-07",#"Emoji Natur-08",#"Emoji Natur-09",#"Emoji Natur-10",#"Emoji Natur-11",#"Emoji Natur-12", nil];
NSArray *scroll3 = [NSArray arrayWithObjects:#"Linear",#"Parallel",#"Parallel 2",#"Crescendo",#"Dubstep",#"Blackhole",#"coming soon", nil];
NSArray *content = [NSArray arrayWithObjects:scroll1,scroll2,scroll3, nil];
[self.view addSubview:[self.bottomOptionView initWithFrame:self.view.frame withContent:content]];
The Subclass then generate a scrollview for each Array, with the buttons based on the content of the array:
-(void)addScrollViewOfContent:(NSArray*)array{
int viewNumber = array.count;
for (int i = 0 ; i < viewNumber; i++) {
//create the main buttons
NSArray *content = array[i];
UIButton *buttonAccess = [UIButton buttonWithType:UIButtonTypeRoundedRect];
CGFloat buttonEdge = 40;
CGFloat buttonSpace = self.frame.size.width /viewNumber;
int placeOfButton = i+1;
CGFloat buttonAnchor = ((placeOfButton*(buttonSpace)) - (buttonSpace /2+ buttonEdge/2));
buttonAccess.frame = CGRectMake(buttonAnchor, 0 , buttonEdge, buttonEdge);
[buttonAccess setBackgroundColor:[UIColor redColor]];
buttonAccess.tag = i;
[buttonAccess addTarget:self action:#selector(buttonAccess:) forControlEvents:UIControlEventTouchDown];
[self addSubview:buttonAccess];
UIScrollView *ScrollView = [[UIScrollView alloc]init];
ScrollView.frame = CGRectMake(0, 50, self.frame.size.width, self.frame.size.height);
ScrollView.showsHorizontalScrollIndicator = YES;
ScrollView.tag = i;
ScrollView.backgroundColor =[UIColor colorWithRed:0 green:0.0 blue:0.0 alpha:0.0];
ScrollView.indicatorStyle = UIScrollViewDecelerationRateNormal ;
//UIImageView *selector = [[UIImageView alloc]initWithImage:[UIImage imageNamed:#"FILTER_SELECT.png"]];
CGFloat btnX = 0;
for (int i = 0 ; i < content.count; i++)
{
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(btnX, 2 , 65, 65);
UIImage *img = [UIImage imageNamed:[content objectAtIndex:i]];
[button setBackgroundImage:img forState:UIControlStateNormal];
[button addTarget:self action:#selector(subButtonTarget:) forControlEvents:UIControlEventTouchDown];
button.tag = i;
[button setTitle:[content objectAtIndex:i] forState:UIControlStateNormal];
button.titleLabel.font = [UIFont fontWithName:#"MyriadPro-Cond" size:15];
button.titleLabel.textColor = [UIColor whiteColor];
button.titleLabel.textAlignment = UIBaselineAdjustmentAlignBaselines ;
button.showsTouchWhenHighlighted = YES;
[ScrollView addSubview:button];
btnX = btnX + 100;
}
btnX = btnX - 80;
ScrollView.contentSize = CGSizeMake(btnX + 50, 80);
ScrollView.hidden = YES;
[self.scrollViewArray addObject:ScrollView];
[self addSubview:ScrollView];
}
This gives me exactly what I want.
Then I detect which button, of which scroll view is pressed to trigger the action.
-(void)subButtonTarget:(UIButton *)sender{
int button = sender.tag;
int scrollview = self.selectedScrollView;
[self.videoEditor subAction:button ofScrollView:scrollview];
}
-(void)buttonAccess:(UIButton *)sender{
// self.selectedScrollView = sender.tag;
for (int i=0; i< self.scrollViewArray.count; i++) {
UIScrollView *scrollview= [self.scrollViewArray objectAtIndex:i];
scrollview.hidden= YES;
}
int scrollIndex = sender.tag;
UIScrollView *scrollview= [self.scrollViewArray objectAtIndex:scrollIndex];
scrollview.hidden = NO;
}
Basically when one of the button is touched, it calls a function in the view controller in which the sublclass was initially called.
The problem is that, on touchevent nothing happens, except for NSLog. Would that be because of the dependency relation of the subClass and the VC that uses it?
You should set this one for each UIScrollView
ScrollView.delaysContentTouches = NO;
And try to subclass UIScrollView with override method
-(BOOL)touchesShouldCancelInContentView:(UIView *)view
{
return YES;
}
I have an UIScrollView with views inside that I can scroll horizontally. During the scroll I would like to add a fade out on the view which is going out of the screen and a fade in on the view which is going in the screen.
Here my code :
for (int i = 0; i <textEntries.count; i++)
{
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i + 5;
frame.size.width = self.scrollView.frame.size.width - 10;
frame.size.height = self.scrollView.frame.size.height - 10;
self.scrollView.pagingEnabled = YES;
UIView *subview = [[UIView alloc] initWithFrame:frame];
if([[colorEntries objectAtIndex:i] isEqualToString:#"violet"]){
subview.backgroundColor = [UIColor colorWithRed:(147/255.0) green:(90/255.0) blue:(255/255.0) alpha:1];
} else {
subview.backgroundColor = [UIColor colorWithRed:(100/255.0) green:(166/255.0) blue:(255/255.0) alpha:1];
}
subview.layer.cornerRadius = 5;
[self.scrollView addSubview:subview];
UITextView *noteLabel = [[UITextView alloc] init];
noteLabel.frame = CGRectMake(0, 0, self.scrollView.frame.size.width - 20, self.scrollView.frame.size.height -20);
noteLabel.text = [textEntries objectAtIndex:i];
noteLabel.userInteractionEnabled = NO;
noteLabel.backgroundColor = [UIColor clearColor];
noteLabel.contentInset = UIEdgeInsetsMake(20,20,20,20);
noteLabel.font = [UIFont fontWithName:#"HelveticaNeue-Bold" size:40];
[noteLabel setTextColor:[UIColor whiteColor]];
[subview addSubview:noteLabel];
[noteLabel addObserver:self forKeyPath:#"contentSize" options:(NSKeyValueObservingOptionNew) context:NULL];
}
Could you help me to build this fadeIn/FadeOut effect ?
Thanks!
I have Created UIScrollview with Paging, But i want to add Date picker in some pages. But Date picker scroll not working.
NSArray *colors = [NSArray arrayWithObjects:[UIColor redColor], [UIColor greenColor], [UIColor blueColor], nil];
for (int i = 0; i < colors.count; i++) {
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
UIView *subview = [[UIView alloc] initWithFrame:frame];
subview.backgroundColor = [colors objectAtIndex:i];
CGRect pickerFrame = CGRectMake(0,100,100,100);
UIDatePicker *myPicker = [[UIDatePicker alloc] initWithFrame:pickerFrame];
[myPicker addTarget:self action:#selector(pickerChanged:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:myPicker];
[myPicker release];
[self.scrollView addSubview:subview];
[subview release];
}
self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * colors.count, self.scrollView.frame.size.height);
self.pageControl.currentPage = 0;
self.pageControl.numberOfPages = colors.count;
Instead of adding the picker view to self.view, add it to self.scrollView
[self.scrollView addSubview:myPicker];
Or else, You can add picker view as input view to a text field,
for (int i = 0; i < colors.count; i++) {
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
UIView *subview = [[UIView alloc] initWithFrame:frame];
subview.backgroundColor = [colors objectAtIndex:i];
//CGRect pickerFrame = CGRectMake(0,100,100,100);
myTextField = [[UITextField alloc]initWithFrame:
CGRectMake(10, 100, 300, 30)]; //if you dont want to show the text field you can change the frame to CGRectMake(0, 0, 1, 1)
myTextField.borderStyle = UITextBorderStyleRoundedRect;
myTextField.textAlignment = NSTextAlignmentCenter;
myTextField.delegate = self;
[self.view addSubview:myTextField];
UIDatePicker *myPicker = [[UIDatePicker alloc] initWithFrame:pickerFrame];
[myPicker addTarget:self action:#selector(pickerChanged:) forControlEvents:UIControlEventValueChanged];
[myTextField setInputView:myPicker];
[self.scrollView addSubview:myTextField];
[myPicker release];
[self.scrollView addSubview:subview];
[subview release];
}
and when you want to show the picker, Call the below method [self showPickerView]
- (void)showPickerView
{
[myTextField becomeFirstResponder];
}
Bit of a strange question, so i've attached a screen recording to help...
Video : https://www.dropbox.com/s/3aaefixsk8eejln/Error.mov (See past the watermark!)
My issue is that in my application when the user is at the "Preview" view and is reviewing their images, each time the image is selected, the image receives a touched overlay, which could be confusing for a user as nothing happens when touched.
I would like to disable this if possible..
Below is the example code to how the images are being displayed..
- (void)setReviewImages
{
continueButtonDisabled = YES;
downloadedImageCount = 0;
NSArray *reviewViews = scrollView.subviews;
for (IMReviewView *reviewView in reviewViews) {
[reviewView removeFromSuperview];
}
NSUInteger photoCount = [[IMLocalUser localUser] cachedPhotoCount];
if ( nPageNum == 0 ){
for (NSUInteger i = 0; i < photoCount; i++) {
CGRect frame;
frame.origin.x = scrollView.frame.size.width * i;
frame.origin.y = 65;
frame.size = CGSizeMake(scrollView.frame.size.width, 327.0f);
IMReviewView *subview = [[IMReviewView alloc] initWithFrame:frame];
subview.delegate = self;
subview.photo = [[IMLocalUser localUser] cachedPhotoAtIndex:i];
[scrollView addSubview:subview];
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.contentSize = CGSizeMake(scrollView.frame.size.width * i, scrollView.frame.size.height);
UILabel *headingLabel = [[UILabel alloc] initWithFrame:CGRectMake(12, 20, 300, 30)];
[self.view addSubview:headingLabel];
headingLabel.text = #"Time To Preview!";
headingLabel.textColor = [UIColor blackColor];
headingLabel.textAlignment = UITextAlignmentCenter;
headingLabel.textAlignment = NSTextAlignmentCenter;
headingLabel.tag = 10;
headingLabel.backgroundColor = [UIColor clearColor];
headingLabel.font = [UIFont boldSystemFontOfSize:26.0f];
headingLabel.hidden = NO;
headingLabel.highlighted = YES;
headingLabel.highlightedTextColor = [UIColor blackColor];
headingLabel.lineBreakMode = YES;
headingLabel.numberOfLines = 0;
}
It seems to me like IMReviewView has a UIButton subview. If so, try to set its adjustsImageWhenHighlighted property to NO.
I have created a UIViewController with a UIScrollView. On the scrollView I have a page control. When I was testing it I was able to scroll horizontally through four different color pages. Now I need to add the actual views I need. In a different part of the project I created a line graph using coreplot. Now I have added made a new UIview and added the code for the line graph. I am now trying to replace the first page of the scrollView with the linegraph UIView. I am getting no errors however nothing is appearing on the screen either. It is just the default background of the scrollView. The scrollView still scrolls through the other pages correctly. I added a button programatically to the UIView to see if it had something to do with coreplot but I cannot see that either. Here is some of my code. I would appreciate any advice. Thanks.
The viewDidLoad method for my main viewController:
- (void)viewDidLoad
{
[super viewDidLoad];
NSArray *colors = [NSArray arrayWithObjects:[UIColor redColor], [UIColor greenColor], [UIColor blueColor], [UIColor purpleColor], nil];
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
self.alertsSubView = [[AlertsView alloc] initWithFrame:frame];
[self.scrollView addSubview:_alertsSubView];
for (int i = 1; i < numberOfGraphs; i++) {
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
UIView *subview = [[UIView alloc] initWithFrame:frame];
subview.backgroundColor = [colors objectAtIndex:i];
[self.scrollView addSubview:subview];
self.alertsSubView.delegate = self;
_scrollView.delegate = (id)self;
}
self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * colors.count, self.scrollView.frame.size.height);
}
Here is the code for the initWithFrame method from my UIView. All of the NSLog statements get run so I know everything is being called:
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
NSLog(#"AlertsView initWithFrame");
///button for testing
self.button = [UIButton buttonWithType:UIButtonTypeCustom];
CGRect buttonFrame = CGRectMake(0,0, frame.size.width, frame.size.height);
self.button.frame = buttonFrame;
[self.button addTarget:self
action:#selector(buttonTouched)
forControlEvents:UIControlEventTouchUpInside];
[self addSubview:self.button];
[self initPlot];
}
return self;
}
I am also adding the methods initPlot and ConfigureHost in case they are relevant:
-(void)initPlot {
NSLog(#"into init plot");
[self configureHost];
[self configureGraph];
[self configurePlots];
[self configureAxes];
NSLog(#"endo of init plot");
}
-(void)configureHost {
NSLog(#"into configure host");
self.hostView = [(CPTGraphHostingView *) [CPTGraphHostingView alloc] initWithFrame:self.bounds];
self.hostView.allowPinchScaling = YES;
[self addSubview:self.hostView];
}
I finally figured this out. Thanks for your suggestion #Eric Skroch. It actually led me down the path to the right answer even though it was not the problem. Basically to fix this problem I had to move all of the logic into the view controller and change the order of alot of the code. I am posting the relevant parts of my revised view controller here in case anyone runs across anything similar.
-(void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
[_alertsSubView initPlot];
}
- (void)viewDidLoad
{
[super viewDidLoad];
NSArray *colors = [NSArray arrayWithObjects:[UIColor redColor], [UIColor greenColor], [UIColor blueColor], [UIColor purpleColor], nil];
alertFrame.origin.x = self.scrollView.frame.size.width;
alertFrame.origin.y = 0;
alertFrame.size = self.scrollView.frame.size;
_panel = [[UIView alloc]initWithFrame:alertFrame];
for (int i = 1; i < numberOfGraphs; i++) {
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
UIView *subview = [[UIView alloc] initWithFrame:frame];
subview.backgroundColor = [colors objectAtIndex:i];
[self.scrollView addSubview:subview];
}
self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * colors.count, self.scrollView.frame.size.height);
_scrollView.delegate = (id)self;
self.alertsSubView.delegate = self;
}
-(AlertsView *)alertsSubView
{
if(!_alertsSubView)
{
CGRect alertsViewFrame = CGRectMake(0,0, _panel.bounds.size.width, _panel.bounds.size.height);
_alertsSubView = [[AlertsView alloc] initWithFrame:alertsViewFrame];
_alertsSubView.backgroundColor = [UIColor purpleColor];
[self.scrollView addSubview:self.alertsSubView];
}
return _alertsSubView;
}