How to add Date Picker in Horizontal paging scroll view? - ios

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];
}

Related

UIPage Control unable to focus in Accesability mode

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];

iOS FadeIn/FadeOut during paging

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!

UIScrollView not scrolling iOS

I am trying to create several UIScrollViews in a single view that scroll horizontally in iOS. This is my code so far:
-(void)updateSection {
[feedLoadingActInd stopAnimating];
feedLoadingActInd.hidden = YES;
builder = [NSMutableArray array];
float xPosition = 0;
float xPosBut = 0;
scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 400, self.frame.size.width, self.frame.size.height - 29)];
[scrollView setScrollEnabled:YES];
scrollView.backgroundColor = [UIColor yellowColor];
scrollView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
scrollView.pagingEnabled = YES;
scrollView.delegate = self;
for (int i = 0; i < itemArticleArray.count; i++) {
testButton = [[UIButton alloc] initWithFrame:CGRectMake(xPosBut, 40, 40, 40)];
[testButton setTitleColor:[UIColor greenColor] forState:UIControlStateNormal];
[testButton setTitle:#"Test" forState:UIControlStateNormal];
[testButton addTarget:self action:#selector(buttonPressed) forControlEvents:UIControlEventTouchUpInside];
testButton.backgroundColor = [UIColor blueColor];
xPosBut += testButton.frame.size.width;
NSLog(#"scroll.frame.size.width = %f", scrollView.frame.size.width);
xPosition += 2;
UIView *seperatorView = [[UIView alloc] initWithFrame:CGRectMake(xPosition, 4, 350, scrollView.frame.size.height - 8)];
seperatorView.backgroundColor = [UIColor redColor];
[scrollView addSubview:seperatorView];
xPosition += 350;
[seperatorView addSubview:testButton];
[scrollView addSubview:seperatorView];
[builder addObject:testButton];
}
[self addSubview:scrollView];
[scrollView setUserInteractionEnabled:YES];
[scrollView setContentSize: CGSizeMake(xPosition, scrollView.frame.size.height)];
NSLog(#"scroll.contentsize.width = %f", scrollView.contentSize.width);
}
However, none of the scroll views are actually scrolling, which I am confused about, as there are multiple buttons being added. Also, the buttons that I have added, are not actually doing anything when I press them. They should be running the buttonPressed method, and it doesn't?
Any help would be muchly appreciated!
try this,
float xPosition = 0;
float xPosBut = 0;
scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 100,self.view.frame.size.width, self.view.frame.size.height - 29)];
[scrollView setScrollEnabled:YES];
scrollView.backgroundColor = [UIColor yellowColor];
for (int i = 0; i < 10; i++) {
UIButton *testButton = [[UIButton alloc] initWithFrame:CGRectMake(xPosition, 10, scrollView.frame.size.width, 50)];
[testButton setTitleColor:[UIColor greenColor] forState:UIControlStateNormal];
[testButton setTitle:#"Test" forState:UIControlStateNormal];
[testButton addTarget:self action:#selector(buttonPressed) forControlEvents:UIControlEventTouchUpInside];
testButton.backgroundColor = [UIColor blueColor];
xPosition += testButton.frame.size.width;
NSLog(#"xposbut = %f", xPosBut);
NSLog(#"scroll.frame.size.width = %f", scrollView.frame.size.width);
xPosition += scrollView.frame.size.width+2;
UIView *seperatorView = [[UIView alloc] initWithFrame:CGRectMake(xPosition, 4, 2, scrollView.frame.size.height - 8)];
seperatorView.backgroundColor = [UIColor redColor];
[scrollView addSubview:seperatorView];
xPosition +=scrollView.frame.size.width+ 4;
[self.view addSubview:scrollView];
[scrollView addSubview:seperatorView];
[scrollView addSubview:testButton];
[builder addObject:testButton];
}
[scrollView setContentSize: CGSizeMake(xPosition, scrollView.frame.size.height)];
[self.view addSubview:scrollView];
set the for loop condition part as per your requirement.
hope this will help you.

How can i add multiple images to my scrollView in ios

i have scroll View with three slides,i want to add images to my scroll view.this is my code after this what do i need to add
- (void)loadView {
[super loadView];
self.view.backgroundColor = [UIColor redColor];
UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
scroll.pagingEnabled = YES;
NSInteger numberOfViews = 3;
for (int i = 0; i < numberOfViews; i++) {
CGFloat xOrigin = i * self.view.frame.size.width;
UIView *awesomeView = [[UIView alloc] initWithFrame:CGRectMake(xOrigin, 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];
[scroll addSubview:awesomeView];
[awesomeView release];
}
scroll.contentSize = CGSizeMake(self.view.frame.size.width * numberOfViews, self.view.frame.size.height);
[self.view addSubview:scroll];
[scroll release];
}
If you want to add Images horizontally (say 3 images), than you have to add scroll view with the width of 3*yourImageView.frame.size.width and than you can add those Image on (x=0,y=0),
(x = yourImageView.frame.size.width, y=0), and (x = 2*yourImageView.frame.size.width, y=0)
UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, yourImageView.frame.size.width, self.view.frame.size.height)];
scroll.pagingEnabled = YES;
NSInteger numberOfViews = 3;
imageView1.frame = CGrectMake(0,0,imageView1.frame.size.width,imageView1.frame.size.height);
imageView2.frame = CGrectMake(0,imageView1.frame.size.width,imageView2.frame.size.width,imageView2.frame.size.height)
imageView3.frame = CGrectMake(0,2*imageView1.frame.size.width,imageView3.frame.size.width,imageView3.frame.size.height)
[scroll addSubview:imageView1];
[scroll addSubview:imageView2];
[scroll addSubview:imageView3];
enable horizontal scrolling

uibutton is not getting displayed

I am trying to add uibutton inside the imageview.
But it was not displayed the button.
Even i tried adding it to the uiscrollview and also for self.view.
But nothing were displayed the uibutton
Pls let me know what is the problem
const CGFloat HEIGHT = 1024.0;
const CGFloat WIDTH = 768.0;
#define myViewPortrait CGRectMake(0.0f, 0.0f, 768.0f,1024.0f)
#define myViewLandSacpe CGRectMake(0.0f, 0.0f, 1024.0f,768.0f)
#define kAnimationKey #"animationKey"
-(void)layoutScrollImages
{
UIImageView *view = nil;
NSArray *subviews = [myScrollView subviews];
CGFloat curXLoc = 0;
for (view in subviews)
{
if ([view isKindOfClass:[UIImageView class]] && view.tag > 0)
{
CGRect frame = view.frame;
frame.origin = CGPointMake(curXLoc, 0);
view.frame = frame;
curXLoc += (self.view.frame.size.width);
}
}
[myScrollView setContentSize:CGSizeMake((myImagesCount * self.view.frame.size.width), [myScrollView bounds].size.height)];
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
self.view.backgroundColor = [UIColor viewFlipsideBackgroundColor];
myScrollView = [[UIScrollView alloc] initWithFrame:
CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
[self.view addSubview:myScrollView];
UISwipeGestureRecognizer *rightRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(rightSwipeHandle:)];
rightRecognizer.direction = UISwipeGestureRecognizerDirectionRight;
rightRecognizer.numberOfTouchesRequired = 1;
[rightRecognizer setDelegate:self];
[myScrollView addGestureRecognizer:rightRecognizer];
[rightRecognizer release];
UISwipeGestureRecognizer *leftRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(leftSwipeHandle:)];
leftRecognizer.direction = UISwipeGestureRecognizerDirectionLeft;
leftRecognizer.numberOfTouchesRequired = 1;
[leftRecognizer setDelegate:self];
[myScrollView addGestureRecognizer:leftRecognizer];
[leftRecognizer release];
[myScrollView setBackgroundColor:[UIColor blackColor]];
[myScrollView setCanCancelContentTouches:NO];
myScrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite;
myScrollView.clipsToBounds = YES;
myScrollView.scrollEnabled = YES;
myScrollView.pagingEnabled = YES;
myScrollView.delegate = self;
myImagesCount = 5;
myScrollView.showsHorizontalScrollIndicator=NO;
myScrollView.showsVerticalScrollIndicator=NO;
for (int i = 1; i <= myImagesCount; i++)
{
NSString *imageName = [NSString stringWithFormat:#"screen-%d.jpg", i];
UIImage *image = [UIImage imageNamed:imageName];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
CGRect rect = imageView.frame;
rect.size.height = myScrollView.frame.size.height;
NSLog(#"%d -----",self.view.frame.size.width);
rect.size.width = myScrollView.frame.size.width;
imageView.frame = rect;
imageView.tag = i;
[myScrollView addSubview:imageView];
[imageView release];
}
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self action:#selector(buttonHandler) forControlEvents:UIControlEventAllEvents];
[button setTitle:#"point" forState:UIControlStateNormal];
button.frame = CGRectMake(0.0, 0.0, 100.0, 40.0);
button.backgroundColor = [UIColor blackColor];
[self.view addSubview:button];
[self layoutScrollImages];
[super viewDidLoad];
}
Based off your question, you'd like to add the UIButton as a subview to the UIImageView - I'm guessing in the for loop? Immediate problem I see is that the actual button is being generated outside of the for loop. I think your for loop is intended to look like this:
for (int i = 1; i <= myImagesCount; i++)
{
NSString *imageName = [NSString stringWithFormat:#"screen-%d.jpg", i];
UIImage *image = [UIImage imageNamed:imageName];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self action:#selector(buttonHandler) forControlEvents:UIControlEventAllEvents];
[button setTitle:#"point" forState:UIControlStateNormal];
button.frame = CGRectMake(0.0, 0.0, 100.0, 40.0);
button.backgroundColor = [UIColor blackColor];
CGRect rect = imageView.frame;
rect.size.height = myScrollView.frame.size.height;
NSLog(#"%d -----",self.view.frame.size.width);
rect.size.width = myScrollView.frame.size.width;
imageView.frame = rect;
imageView.tag = i;
[imageView addSubview:button];
[myScrollView addSubview:imageView];
[imageView release];
}
Try this
Declare button globally and set
[self layoutScrollImages];
[self.view bringSubViewToFront:button];

Resources