how to change the width of the UIPickerView in objective C, I am using the following code,
tempFiled = Data;
[tempFiled resignFirstResponder];
CGSize sizeOfPopover = CGSizeMake(200, 200);
CGPoint positionOfPopover = CGPointMake(32, 325);
[popOverControllerWithPicker presentPopoverFromRect:CGRectMake(positionOfPopover.x, positionOfPopover.y+10, 500, sizeOfPopover.height)
inView:self.view permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
But when i am trying to change the width in CGSize sizeOfPopover = CGSizeMake(200, 200); its not changing, i want to reduce the size of the picker.
I had this problem and solved it this way:
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
CGRect frame = bpsPicker.frame;
frame.size.width = 100; // width to be displayed on popover controller
bpsPicker.frame = frame;
}
Using ViewDidLoad() is too early to alter this value.
To be clear the viewWillAppear is in the UIViewController that is passed to the UIPopover (here called 'MyViewController.m').So,
self.myViewController = [[MyViewController alloc] initWithNibName:#"MyViewController" bundle:nil] ;
self.myViewController.delegate = self;
self.myViewController.contentSizeForViewInPopover = CGSizeMake(320, 360); // or whatever
self.myViewControllerPopover = [[UIPopoverController alloc] initWithContentViewController:self.myViewController] ;
[self.myViewControllerPopover presentPopoverFromBarButtonItem:self.myToolBarButton permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
Related
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];
});
what's the proper way to set UIPopoverController size in iOS8
in iOS7 was
[UIPopoverController setContentViewController:(UIViewController *) animated:(BOOL)];
but now it doesn't work
thanks in advance
EDIT: Gonna put my piece of code here and both results (iOS7.1 and iOS8)
DetalleTarjetaVC *controller = [self.storyboard instantiateViewControllerWithIdentifier:#"DetalleTarjetaVC"];
UINavigationController *navController;
navController = [[UINavigationController alloc] initWithRootViewController:controller];
navController.toolbarHidden = FALSE;
navController.navigationBar.translucent = FALSE;
navController.toolbar.translucent = FALSE;
navController.navigationBar.barTintColor = UIColorFromRGBWithAlpha(toolbarTintColor, 0.95);
navController.navigationBar.barStyle = UIBarStyleBlack;
navController.toolbar.barTintColor = UIColorFromRGBWithAlpha(toolbarTintColor, 0.95);
navController.toolbar.barStyle = UIBarStyleBlack;
controller.view.backgroundColor = UIColorFromRGBWithAlpha(0XFFFFFF, 1);
tarjetasPopover = [[UIPopoverController alloc] initWithContentViewController:navController];
CGRect rect = button.frame;
CGPoint coord = [button convertPoint:button.frame.origin toView:self.tableView];
rect.origin.y = coord.y -20;
[tarjetasPopover setPopoverContentSize:CGSizeMake(530, 400) animated:YES];
[tarjetasPopover presentPopoverFromRect:rect
inView:self.view
permittedArrowDirections:UIPopoverArrowDirectionLeft
animated:YES];
there's something that may help you
int iOSVersion = [[[UIDevice currentDevice]systemVersion] intValue];
if (iOSVersion >= 8) {
controller.preferredContentSize = CGSizeMake(530, 312);
}
else{
[tarjetasPopover setPopoverContentSize:CGSizeMake(530, 400) animated:YES];
}
I reduced in 88.0 height for iOS8 since you have to consider the width of your toolbar and navigation controller (44px each) for getting same size
The method have not been replaced in iOS8. You just need to alloc an istance before, like that:
UIPopoverController *yourPopoverController = [[UIPopoverController alloc] init];
and then you can use:
[yourPopoverController setContentViewController:yourViewController animated:YES];
Or easily you can pass the viewController on UIPopoverController Init:
UIPopoverController *popoverController = [[UIPopoverController alloc] initWithContentViewController:yourViewController];
Hope it help.
Basically, it's a very simple demand, but I've tried several methods and none of them works as expected. The closest functioning snippet is:
#import "ViewController.h"
#implementation ViewController
- (void)dealloc
{
[scrollView release];
scrollView = nil;
[super dealloc];
}
- (id)init
{
if (self = [super init])
{
self.title = #"Pictures";
scrollView = [[UIScrollView alloc] init];
scrollView.delegate = self;
scrollView.frame = CGRectMake(0.0f, 0.0f, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height);
scrollView.contentSize = CGSizeMake([UIScreen mainScreen].bounds.size.width * 10, scrollView.bounds.size.height);
scrollView.showsVerticalScrollIndicator = NO;
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.pagingEnabled = YES;
scrollView.userInteractionEnabled = YES;
scrollView.backgroundColor = [UIColor blackColor];
self.wantsFullScreenLayout = YES;
self.automaticallyAdjustsScrollViewInsets = NO;
isHidden = NO;
}
return self;
}
- (void)viewDidLoad
{
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(tap:)];
[scrollView addGestureRecognizer:tapGesture];
[tapGesture setNumberOfTapsRequired:1];
[tapGesture release];
for (int i = 0; i < 10; i++)
{
UIImage *image = [[UIImage alloc] initWithContentsOfFile:[NSString stringWithFormat:#"/path/to/%d.png", i + 1]];
UIImageView *imageView= [[UIImageView alloc] initWithFrame:CGRectMake([UIScreen mainScreen].bounds.size.width * i, 0.0f, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height)];
imageView.contentMode = UIViewContentModeScaleAspectFit;
imageView.image = image;
[scrollView addSubview:imageView];
[image release];
[imageView release];
}
[self.view addSubview:scrollView];
}
- (void)tap:(UITapGestureRecognizer *)gesture
{
[UINavigationBar setAnimationDuration:1.0];
[UINavigationBar beginAnimations:#"HideTopBars" context:nil];
isHidden = !isHidden;
// [self setNeedsStatusBarAppearanceUpdate];
self.navigationController.navigationBar.alpha = isHidden ? 0.0f : 1.0f;
[UINavigationBar commitAnimations];
}
- (void)scrollViewDidScroll:(UIScrollView *)view
{
// further operation
}
- (BOOL)prefersStatusBarHidden
{
return isHidden;
}
#end
Without "[self setNeedsStatusBarAppearanceUpdate]", navigation bar does fade as expected, but texts on status bar remain visible, which I guess is because status bar takes navigation bar as it's background image and status bar itself doesn't fade; With "[self setNeedsStatusBarAppearanceUpdate]", the texts also fade, but navigation bar's animation becomes sliding in/out from the top of the screen along with fade effect. I've also tried to move "[self setNeedsStatusBarAppearanceUpdate]" into prefersStatusBarHidden, but that just made navigation bar visible forever. I believe this is not an odd demand, so I bet there're better and simpler solutions. Any idea?
I am building an application (without interface builder!) which 'lives' in the NSStatusBar; when you click on an icon in the StatusBar a NSWindow with a NSScrollView appears. The window appears but it seems that something is preventing user interaction with the ScrollView
To find out where the problem comes from I also added my view to the main windows contentView in the AppDelegate, strange thing is that the scrollview is interactive in the MainWindow... Anyone knows why it doesn't work in my new Window?
This is the code I use to create the new TTDropDownWindow:
- (void)openWindow {
// Dropdown
if (self.dropDownWindow == nil) {
self.dropDownWindow = [[TTDropDownWindow alloc] init];
self.dropDownWindow.releasedWhenClosed = NO;
self.dropDownWindow.contentView = self.view;
self.dropDownWindow.backgroundColor = [NSColor clearColor];
self.dropDownWindow.delegate = self;
self.dropDownWindow.alphaValue = 1;
self.dropDownWindow.hasShadow = NO;
self.dropDownWindow.opaque = NO;
}
[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
NSRect statusBarContentRect = self.statusBarItemView.window.frame;
NSPoint statusBarOriginPoint = NSMakePoint(NSMidX(statusBarContentRect), NSMinY(statusBarContentRect));
NSRect screenFrame = self.dropDownWindow.screen.frame;
NSRect dropDownContentRect = NSZeroRect;
dropDownContentRect.size.width = DROP_DOWN_WIDTH;
dropDownContentRect.size.height = DROP_DOWN_HEIGHT;
dropDownContentRect.origin.x = statusBarOriginPoint.x - DROP_DOWN_WIDTH / 2;
dropDownContentRect.origin.y = screenFrame.size.height - DROP_DOWN_HEIGHT - NSStatusBar.systemStatusBar.thickness;
[self.dropDownWindow setFrame:dropDownContentRect display:YES];
[self.dropDownWindow makeKeyAndOrderFront:nil];
}
This is the implementation of TTDropDownWindow:
#import "TTDropDownWindow.h"
#import "WFConstants.h"
#implementation TTDropDownWindow
- (id) init
{
self = [super initWithContentRect:NSMakeRect(0, 0, DROP_DOWN_WIDTH, DROP_DOWN_HEIGHT) styleMask:NSBorderlessWindowMask backing:NSBackingStoreRetained defer:NO];
return self;
}
- (BOOL)canBecomeMainWindow {
return YES;
}
- (BOOL)canBecomeKeyWindow {
return YES;
}
#end
And this is the code that creates the View and the ScrollView
#import "TTStatusBarDropDownView.h"
#import "TTTestView.h"
#implementation TTStatusBarDropDownView
#synthesize dropDownTableViewData = dropDownTableViewData_;
- (id)initWithFrame:(NSRect)frameRect {
self = [super initWithFrame:frameRect];
if (self) {
NSImageView *imageView = [[NSImageView alloc] initWithFrame:frameRect];
imageView.image = [NSImage imageNamed:#"background-dropdown"];
[self addSubview:imageView];
// first create a view to put in a ScrollView
NSView *scrollViewHolder = [[TTTestView alloc] initWithFrame:NSMakeRect(19, 98, 414, 543) andColor:[NSColor yellowColor]];
[self addSubview:scrollViewHolder];
// create the scrollView
NSScrollView *scrollView = [[NSScrollView alloc] initWithFrame:NSMakeRect(0, 0, 414, 543)];
scrollView.hasVerticalRuler = YES;
scrollView.hasVerticalScroller = YES;
[scrollViewHolder addSubview:scrollView];
// TTTestView is just a NSView with a background drawing
TTTestView *theViewThatScrolls = [[TTTestView alloc] initWithFrame:NSMakeRect(0, 0, 200, 10000) andColor:[NSColor blueColor]];
[theViewThatScrolls addSubview:[[TTTestView alloc] initWithFrame:NSMakeRect(10, 10, 100, 8000) andColor:[NSColor grayColor]]];
[scrollView setDocumentView:theViewThatScrolls];
}
return self;
}
#end
You might change NSBackingStoreRetained to NSBackingStoreBuffered as stated over here:
NSScrollView in a NSWindow
I create a custom view in cocoa touch that is superclassed by UIView and in my main controller I initialize it and then add it as a subview to the main view, but when I add it to the main view it calls my initializer method again and causes an infinite loop. Am I going about creating my custom view wrong?
Here is the mainView
- (void)loadView {
UIImage* tempImage = [UIImage imageNamed: #"image1.jpg"];
CustomImageContainer *testImage = [[CustomImageContainer alloc] initWithImage: tempImage andLabel: #"test image" onTop: true atX: 10 atY: 10];
[self.view addSubview: testImage];
}
and the CustomImageContainer
-(CustomImageContainer *) initWithImage: (UIImage *)imageToAdd andLabel: (NSString *)text onTop: (BOOL) top atX: (int) x_cord atY: (int) y_cord{
UIImageView *imageview_to_add = [[UIImageView alloc] initWithImage: imageToAdd];
imageview_to_add.frame = CGRectMake(0, 0, imageToAdd.size.width, imageToAdd.size.height);
UILabel *label_to_add = [[UILabel alloc] init];
label_to_add.text = text;
label_to_add.alpha = 50;
label_to_add.backgroundColor = [UIColor blackColor];
label_to_add.textColor = [UIColor whiteColor];
[self addSubview: imageview_to_add];
self.frame = CGRectMake(x_cord, y_cord, imageToAdd.size.width, imageToAdd.size.height);
if (top) {
label_to_add.frame = CGRectMake(0, 0, imageview_to_add.frame.size.width, imageview_to_add.frame.size.height);
//[self addSubview: label_to_add];
}
else {
label_to_add.frame = CGRectMake(0,.2 * imageview_to_add.frame.size.height, imageview_to_add.frame.size.width, imageview_to_add.frame.size.height);
}
[self addSubview: label_to_add];
[super init];
return self;
}
Why did you put the [super init] statement at the end of the initializer ? When subclassing, you usually put this statement at the start of method.
For UIView subclasses, the designated initializer when creating views in code is initWithFrame:, so you should call it before adding the label and the image. You can use the image to compute the frame needed by the custom view.
-(CustomImageContainer *) initWithImage: (UIImage *)imageToAdd andLabel: (NSString *)text onTop: (BOOL) top atX: (int) x_cord atY: (int) y_cord{
// The view will gets its frame to the size of the image
UIImageView *imageview_to_add = [[UIImageView alloc] initWithImage: imageToAdd];
// Call the designated initializer
CGRect frame = CGRectMake(x_cord, y_cord, imageToAdd.size.width, imageToAdd.size.height);
self = [super initWithFrame:frame];
[self addSubview: imageview_to_add];
UILabel *label_to_add = [[UILabel alloc] init];
label_to_add.text = text;
label_to_add.alpha = 50;
label_to_add.backgroundColor = [UIColor blackColor];
label_to_add.textColor = [UIColor whiteColor];
if (top) {
label_to_add.frame = CGRectMake(0, 0, imageview_to_add.frame.size.width, imageview_to_add.frame.size.height);
}
else {
label_to_add.frame = CGRectMake(0,.2 * imageview_to_add.frame.size.height, imageview_to_add.frame.size.width, imageview_to_add.frame.size.height);
}
[self addSubview: label_to_add];
return self;
}
If you still have an infinite loop, pause the debugger and search for the recurrent method pattern in the stack trace. This pattern will gives you where the code enters the infinite loop.