Objective C implementing a UIPickerView with a "Done" button - objective-c

I am trying to implement a "Done" button in a UIPickerView Similar to the one under this link
I looked in the class reference but I couldn t find it
Thanks

The easiest way to do it is to model it in Interface Builder. It is a UIView containing a UIToolbar and a UIPickerView.
Then create an outlet for the UIView and connect it.
If you then have a UITextField you can assign your custom view to its inputView property.
[self.textField setInputView:self.customPicker];
Alternatively you can add the picker to your main view...
- (void)viewDidLoad
{
[super viewDidLoad];
self.customPicker.frame = CGRectMake(0, CGRectGetMaxY(self.view.frame), CGRectGetWidth(self.customPicker.frame), CGRectGetHeight(self.customPicker.frame));
[self.view addSubview:self.customPicker];
}
... and then use this method to show or hide the picker.
- (void)setPickerHidden:(BOOL)hidden
{
CGAffineTransform transform = hidden ? CGAffineTransformIdentity : CGAffineTransformMakeTranslation(0, -CGRectGetHeight(self.customPicker.frame));
[UIView animateWithDuration:0.3 animations:^{
self.customPicker.transform = transform;
}];
}

I added a UIToolbar with a UIBarButtonItem for the 'done' button in my xib with the frame set so that it's not initially visible (y value equal to the height of the parent view).
Every time the user access the picker, I changed the frame (the y value) of the UIDatePicker and the UIToolbar with an animation so that it slides up along with the picker from the bottom of the screen similar to the keyboard.
Check out my code below.
- (IBAction)showPicker
{
if(pickerVisible == NO)
{
// create the picker and add it to the view
if(self.datePicker == nil) self.datePicker = [[[UIDatePicker alloc] initWithFrame:CGRectMake(0, 460, 320, 216)] autorelease];
[self.datePicker setMaximumDate:[NSDate date]];
[self.datePicker setDatePickerMode:UIDatePickerModeDate];
[self.datePicker setHidden:NO];
[self.view addSubview:datePicker];
// the UIToolbar is referenced 'using self.datePickerToolbar'
[UIView beginAnimations:#"showDatepicker" context:nil];
// animate for 0.3 secs.
[UIView setAnimationDuration:0.3];
CGRect datepickerToolbarFrame = self.datePickerToolbar.frame;
datepickerToolbarFrame.origin.y -= (self.datePicker.frame.size.height + self.datePickerToolbar.frame.size.height);
self.datePickerToolbar.frame = datepickerToolbarFrame;
CGRect datepickerFrame = self.datePicker.frame;
datepickerFrame.origin.y -= (self.datePicker.frame.size.height + self.datePickerToolbar.frame.size.height);
self.datePicker.frame = datepickerFrame;
[UIView commitAnimations];
pickerVisible = YES;
}
}
- (IBAction)done
{
if(pickerVisible == YES)
{
[UIView beginAnimations:#"hideDatepicker" context:nil];
[UIView setAnimationDuration:0.3];
CGRect datepickerToolbarFrame = self.datePickerToolbar.frame;
datepickerToolbarFrame.origin.y += (self.datePicker.frame.size.height + self.datePickerToolbar.frame.size.height);
self.datePickerToolbar.frame = datepickerToolbarFrame;
CGRect datepickerFrame = self.datePicker.frame;
datepickerFrame.origin.y += (self.datePicker.frame.size.height + self.datePickerToolbar.frame.size.height);
self.datePicker.frame = datepickerFrame;
[UIView commitAnimations];
// remove the picker after the animation is finished
[self.datePicker performSelector:#selector(removeFromSuperview) withObject:nil afterDelay:0.3];
}
}

I create a custom class, this supports multiple orientation:
DateTimePicker.h
#interface DateTimePicker : UIView {
}
#property (nonatomic, assign, readonly) UIDatePicker *picker;
- (void) setMode: (UIDatePickerMode) mode;
- (void) addTargetForDoneButton: (id) target action: (SEL) action;
#end
DateTimePicker.m
#define MyDateTimePickerToolbarHeight 40
#interface DateTimePicker()
#property (nonatomic, assign, readwrite) UIDatePicker *picker;
#property (nonatomic, assign) id doneTarget;
#property (nonatomic, assign) SEL doneSelector;
- (void) donePressed;
#end
#implementation DateTimePicker
#synthesize picker = _picker;
#synthesize doneTarget = _doneTarget;
#synthesize doneSelector = _doneSelector;
- (id) initWithFrame: (CGRect) frame {
if ((self = [super initWithFrame: frame])) {
self.backgroundColor = [UIColor clearColor];
UIDatePicker *picker = [[UIDatePicker alloc] initWithFrame: CGRectMake(0, MyDateTimePickerToolbarHeight, frame.size.width, frame.size.height - MyDateTimePickerToolbarHeight)];
[self addSubview: picker];
UIToolbar *toolbar = [[UIToolbar alloc] initWithFrame: CGRectMake(0, 0, frame.size.width, MyDateTimePickerToolbarHeight)];
toolbar.barStyle = UIBarStyleBlackOpaque;
toolbar.autoresizingMask = UIViewAutoresizingFlexibleWidth;
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithTitle: #"Done" style: UIBarButtonItemStyleBordered target: self action: #selector(donePressed)];
UIBarButtonItem* flexibleSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
toolbar.items = [NSArray arrayWithObjects:flexibleSpace, doneButton, nil];
[self addSubview: toolbar];
self.picker = picker;
picker.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleTopMargin|UIViewAutoresizingFlexibleBottomMargin;
self.autoresizesSubviews = YES;
self.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleTopMargin|UIViewAutoresizingFlexibleBottomMargin;
}
return self;
}
- (void) setMode: (UIDatePickerMode) mode {
self.picker.datePickerMode = mode;
}
- (void) donePressed {
if (self.doneTarget) {
[self.doneTarget performSelector:self.doneSelector withObject:nil afterDelay:0];
}
}
- (void) addTargetForDoneButton: (id) target action: (SEL) action {
self.doneTarget = target;
self.doneSelector = action;
}
Using custom view in your view controller:
- (void)viewDidLoad
{
[super viewDidLoad];
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:#selector(buttonPressed:)
forControlEvents:UIControlEventTouchDown];
[button setTitle:#"Show picker" forState:UIControlStateNormal];
button.frame = CGRectMake(100, 50, 100, 40.0);
[self.view addSubview:button];
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenWidth = screenRect.size.width;
CGFloat screenHeight = screenRect.size.height;
picker = [[DateTimePicker alloc] initWithFrame:CGRectMake(0, screenHeight/2 - 35, screenWidth, screenHeight/2 + 35)];
[picker addTargetForDoneButton:self action:#selector(donePressed)];
[self.view addSubview:picker];
picker.hidden = YES;
[picker setMode:UIDatePickerModeDate];
}
-(void)donePressed {
picker.hidden = YES;
}
-(void)buttonPressed:(id)sender {
picker.hidden = NO;
}
Hope this helps. :)

There is a more elegant solution. I'm not sure if this is recent (as of iOS7), but this has been working for me splendidly.
TJDatePicker.h
#protocol TJDatePickerActionDelegate <NSObject>
- (void)cancel:(id)sender;
- (void)done:(id)sender;
#end
#interface TJDatePicker : UIDatePicker
#property (strong, nonatomic) UIView *navInputView;
#property (weak, nonatomic) id<TJDatePickerActionDelegate> actionDelegate;
#end
TJDatePicker.m
#import "TJDatePicker.h"
#interface TJDatePicker ()
#property (strong, nonatomic) TJButton *cancelButton;
#property (strong, nonatomic) TJButton *doneButton;
#end
#implementation TJDatePicker
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self)
{
[self updateSubviews];
}
return self;
}
- (void)layoutSubviews
{
[super layoutSubviews];
[self updateSubviews];
}
- (void)updateSubviews
{
self.navInputView.frame = CGRectMake(0, 0, self.width, 45);
self.cancelButton.frame = CGRectMake(5, 5, 80, 35);
CGFloat width = 80;
self.doneButton.frame = CGRectMake(CGRectGetMaxX(self.navInputView.frame) - width, self.cancelButton.frame.origin.y, width, self.cancelButton.height);
}
- (UIView *)navInputView
{
if (!_navInputView)
{
_navInputView = [[UIView alloc] init];
_navInputView.backgroundColor = [UIColor whiteColor];
self.cancelButton = [UIButton buttonWithType:UIButtonTypeCustom];
[self.cancelButton setTitle:#"CANCEL" forState:UIControlStateNormal];
[self.cancelButton addTarget:self action:#selector(cancelButtonPressed) forControlEvents:UIControlEventTouchUpInside];
[_navInputView addSubview:self.cancelButton];
self.doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
[self.doneButton setTitle:#"DONE" forState:UIControlStateNormal];
[self.doneButton addTarget:self action:#selector(doneButtonPressed) forControlEvents:UIControlEventTouchUpInside];
[_navInputView addSubview:self.doneButton];
}
return _navInputView;
}
- (void)cancelButtonPressed
{
[self.actionDelegate cancel:self];
}
- (void)doneButtonPressed
{
[self.actionDelegate done:self];
}
And then at implementation time...
self.datePicker = [[TJDatePicker alloc] init];
self.datePicker.actionDelegate = self;
self.textField.inputAccessoryView = self.datePicker.navInputView;
The key here is to use the inputAccessoryView of the UITextField that you are planning on setting the UIDatePicker to.

You get the "Done" button in the toolbar using the ActionSheetPicker. Its is a great alternative to building it yourself.
https://github.com/skywinder/ActionSheetPicker-3.0

Success! Ok, I would never suggest doing this, but here's where the done button is created in your particular tutorial code:
Looking at the storyboard, we can see that when you click the "Role" box within "AddPersonTVC.h" (class at the top right of the storyboard), it pops up a class called "RollPickerTVCell.h"
Looking into RollPickerTVCell.h, we notice that the whole class is a subclass of "CoreDataTableViewCell"
#interface RolePickerTVCell : CoreDataTableViewCell <UIPickerViewDataSource, UIPickerViewDelegate>
Looking at the class "CoreDataTableViewCell.m", we finally find our uibarbuttonitem!
UIBarButtonItem *doneBtn =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(done:)];

In case you are working on a Table View Cell and you are not using a UITextField (hence you won't be using the Accessory View), here's what I did:
I created a table view cell called GWDatePickerCell that looks like this (no .nib files involved).
GWDatePickerCell.h:
#import <UIKit/UIKit.h>
#interface GWDatePickerCell : UITableViewCell
#property (nonatomic, strong) UIDatePicker *datePicker;
#property (nonatomic, strong) UIToolbar *toolbar;
#property (nonatomic, strong) UIBarButtonItem *buttonDone;
#end
GWDatePickerCell.m:
#import "GWDatePickerCell.h"
#implementation GWDatePickerCell
- (id) initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
if(!(self=[super initWithStyle:style reuseIdentifier:reuseIdentifier])) return nil;
_datePicker = [[UIDatePicker alloc] init];
[_datePicker setMinuteInterval:5];
[_datePicker setDatePickerMode:UIDatePickerModeDateAndTime];
[self.contentView addSubview:_datePicker];
_toolbar = [[UIToolbar alloc] init];
_buttonDone = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:nil action:nil];
_toolbar.items = #[[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil], _buttonDone];
[self.contentView addSubview:_toolbar];
return self;
}
- (void)layoutSubviews{
[super layoutSubviews];
CGRect r = self.contentView.bounds;
r.origin.y +=44;
r.size.height = 216;
CGRect tb = self.contentView.bounds;
tb.size.height = 44;
_datePicker.frame = r;
_toolbar.frame = tb;
}
#end
Now all I had to do when creating the cells in the Table View:
Specify the #selector for the Done button.
Set the correct cell height in heightForRowAtIndexPath

Related

Long Press: BAD_EXC_ACCESS

Here is my code:
#interface UserProfileViewController : UIViewController<UIGestureRecognizerDelegate>{
}
#property (nonatomic, retain) UILabel *myLabel;
#property (nonatomic, retain) UIImageView *imageView;
#end
#implementation UserProfileViewController
#synthesize myLabel;
#synthesize imageView;
- (void)viewDidLoad
{
[super viewDidLoad];
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
scrollView.contentSize = CGSizeMake(320, 700);
scrollView.clipsToBounds = YES;
[scrollView setUserInteractionEnabled:YES];
myLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 200, 40)];
myLabel.text = #"Kim Gysen";
myLabel.center = CGPointMake(CGRectGetWidth(self.view.bounds)/2.0f, 25);
myLabel.textAlignment = NSTextAlignmentCenter;
myLabel.textColor = [UIColor whiteColor];
[myLabel setBackgroundColor:[UIColor clearColor]];
self.imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 140, 180)];
self.imageView.center = CGPointMake(CGRectGetWidth(self.view.bounds)/2.0f, 150);
UIImage *image = [UIImage imageNamed: #"ProfilePic.jpeg"];
[imageView setImage:image];
//Long press
self.imageView.userInteractionEnabled = YES;
UILongPressGestureRecognizer *longPressGestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:#selector(handleLongPressFrom:)];
longPressGestureRecognizer.delegate = self;
[self.imageView addGestureRecognizer:longPressGestureRecognizer];
[scrollView addSubview:myLabel];
[scrollView addSubview:imageView];
[self.view addSubview:scrollView];
}
- (void) handleLongPressFrom: (UISwipeGestureRecognizer *)recognizer
{
CGPoint location = [recognizer locationInView:self.view];
NSLog(#"Tap Gesture Coordinates: %.2f %.2f", location.x, location.y);
if(UIGestureRecognizerStateBegan == recognizer.state)
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Gesture Recognizer Demo"
message:#"Long Press Gesture performed"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil, nil];
[alert show];
}
}
I get no errors in my ViewDidLoad, but the BAD_EXC_ACCESS error appears on the long press, before the method is actually fired. I understood that I'm leaking somewhere but where?
I'm using ARC...
You should make a property in your main view controller (typed strong) that points to the ProfileViewController then use:
self.profileView = [[UserProfileViewController alloc] init];
[self.view addSubview: self.profileView.view];

How to hide the keyboard if I have a UIView(contains several textview) in Scrollview

I have several textview in my UIVIew which contained in a scrollview.
First the scollview doesn't not actives when I touched it and want to hide the keyboard after finished the textview editing. So I had build a class name subUIView inherit from scrollview. In that class I overwrite the touch touchbegan events. like the code blow.
But after that the textviewbeingediting function didn't action any more. It's all about touchbegan events calling even when I want to edit the textview.
Could you offer me some advise to solve the problem?Thanks
//
// **subUIView.h**
#import <UIKit/UIKit.h>
#interface subUIView : UIScrollview
{
}
#end
// **subUIView.m**
#import "subUIView.h"
#implementation subUIView
- (id)initWithFrame:(CGRect)frame{
self = [super initWithFrame:frame];
self.delegate=self;
//return [super initWithFrame:frame];
if (self) {
// Initialization code
}
return self;}
NSInteger a=0;
- (void) touchesBegan: (NSSet *) touches withEvent: (UIEvent *) event { NSLog(#"touch began ");
// If not dragging, send event to next responder
if (!self.dragging)
{
[self.nextResponder touchesBegan: touches withEvent:event];
}}
in the code blow I alloc scrollview from subUIView and code the textviewbeginediting function.
//
// **ReadExperienceInfoViewController.h**
#import <UIKit/UIKit.h>
#import <QuartzCore/QuartzCore.h>
#define ExperienceTableName #"pockets"
#class subUIView;
#interface ReadExperienceInfoViewController : UIViewController <UITextFieldDelegate,UITextViewDelegate> {
subUIView *scrollView;
UIView *upView;
UITextField *bookNameTextField;
UITextView *bookExprection;
NSString *getFullDateStr;
BOOL dragging;
}
#property (nonatomic, retain) UIView *upView;
#property (nonatomic, retain) subUIView *scrollView;
//
// **ReadExperienceInfoViewController.m**
//- (void)loadView{
scrollView=[[subUIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
scrollView.contentSize=CGSizeMake(320, 960);
scrollView.backgroundColor=[UIColor colorWithPatternImage :[UIImage imageNamed:#"infomation.png"]];
scrollView.showsVerticalScrollIndicator=YES;
upView=[[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
upView=[[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 960)];
[upView setUserInteractionEnabled:YES];
UILabel *bookName = [[UILabel alloc] initWithFrame:CGRectMake(20, 20, 100, 30)];
bookName.backgroundColor = [UIColor clearColor];
bookName.text = #"Title";
bookName.font=[UIFont boldSystemFontOfSize:16];
[upView addSubview:bookName];
[bookName release];
bookNameTextField = [[UITextField alloc] initWithFrame:CGRectMake(20, 50, 280, 30)];
bookNameTextField.backgroundColor = [UIColor whiteColor];
bookNameTextField.returnKeyType=UIReturnKeyDone;
bookNameTextField.delegate=self;
[upView addSubview:bookNameTextField];
//lowerView=[[UIView alloc] initWithFrame:CGRectMake(0, 90, 320, 170)];
UILabel *bookExprectionLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 80, 200, 30)];
bookExprectionLabel.text = #"Content";
bookExprectionLabel.font=[UIFont boldSystemFontOfSize:16];
bookExprectionLabel.backgroundColor = [UIColor clearColor];
[upView addSubview:bookExprectionLabel];
[bookExprectionLabel release];
bookExprection = [[UITextView alloc] initWithFrame:CGRectMake(20, 110, 280, 140)];
bookExprection.backgroundColor = [UIColor whiteColor];
bookExprection.font = [UIFont systemFontOfSize:14];
bookExprection.delegate=self;
[upView addSubview:bookExprection];
self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle:#"Save"
style:UIBarButtonItemStylePlain
target:self action:#selector(updateExperience)]
autorelease];
self.title= bookNameStr;
self.view=scrollView;
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
upView.frame=CGRectMake(0, 0, 320, 960);
[UIView commitAnimations];
[bookExprection resignFirstResponder];
[bookNameTextField resignFirstResponder];
}
-(void)textViewDidBeginEditing:(UITextView *)textView{
NSLog(#"texview dig begin editing");
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
if (textView==bookExprection) {
upView.frame=CGRectMake(0, -80, 320, 0);
}
[UIView commitAnimations];
}
Your subUIView.h File must implement the UITextFieldDelegate Protocol, so your viewcontroller responds to the delegate methods for the text field.
Same for the Scroll view, you have to implement the ScrollView
//subUIView.h
#interface subUIView : UIViewController <UIScrollViewDelegate, UITextFieldDelegate>{
//do stuff
}
Then of course you must write scrollView.delegate = self; so that the viewcontroller responds to the delegatemethods for the scroll view.
Hope this helps

Weird animation during switch views

I create the views, UI elements etc programmatically.
I'm trying to animate views when they are added or removed. The problem is that only UIButton *button is being animated and it is animated wrong. I mean the button title comes from the top and the button itself comes from the right of the screen.
Please see the code below
AppDelegate.h
#import <UIKit/UIKit.h>
#import "TViewController.h"
#interface AppDelegate : UIResponder <UIApplicationDelegate>
{
TViewController *tv;
}
#property (strong, nonatomic) TViewController *tv;
#property (strong, nonatomic) UIWindow *window;
#end
AppDelegate.m
.....
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
self.window.backgroundColor = [UIColor whiteColor];
self.tv = [[TViewController alloc]initWithNibName:#"TViewController" bundle:nil];
self.window.rootViewController = self.tv;
[self.window makeKeyAndVisible];
return YES;
}
TViewController.h
#import <UIKit/UIKit.h>
#import "Elements.h"
#interface TViewController : UIViewController
{
Elements *el;
}
#property (nonatomic, retain) Elements *el;
#end
TViewController.m
-(void)loadView
{
self.view = [[UIView alloc]initWithFrame:[UIScreen mainScreen].applicationFrame];
self.el = [[Elements alloc]
initWithNibName:#"Elements"
bundle:nil];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:3.0];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.view.superview cache:YES];
[self.view addSubview:self.el.view];
self.view.backgroundColor = [UIColor grayColor];
[self.view removeFromSuperview];
[UIView commitAnimations];
}
Elements.m
self.view = [[UIView alloc]initWithFrame:[UIScreen mainScreen].applicationFrame];
UILabel *howManyUsersLabel = [[UILabel alloc]initWithFrame:CGRectMake(10, 20, 300, 150)];
howManyUsersLabel.text = #"Label ...";
[self.view addSubview:howManyUsersLabel];
UIPickerView *playersPickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(10, 150, 250, 100)];
playersPickerView.delegate = self;
playersPickerView.showsSelectionIndicator = YES;
[self.view addSubview:playersPickerView];
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(20, 370, 280, 50);
[button setTitle:#"Button" forState:UIControlStateNormal];
[self.view addSubview:button];
Transitions have to be applied to a view that doesn't get removed or added during the transition. You are adding the transition to self.view, but then you are removing self.view during the transition.
Try adding the transition to self.view.superview instead, like this:
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.view.superview cache:YES];
If that still doesn't work, are you sure this code is right:
[self.view addSubview:self.el.view];
self.view.backgroundColor = [UIColor grayColor];
[self.view removeFromSuperview];
Literally, this code is saying:
add self.el.view as a subview to self.view
set background colour of self.view to gray
remove self.view from the screen
That means the first two lines are pointless because everything you do to the view is wiped out when you remove it from the screen. And removing the view is a weird thing to do during loadView - the end result would be the view would be nil after loading.

No scrolling or user interaction in new NSWindow with NSScrollView

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

Issues with UISplitViewController and modal UIViewControllers

I have a really strange UI glitch in my iPhone/iPad app. Because I wanted to find the cause of it, I created a new project with as little code as possible. The important code is below.
Basically, I have a UISplitViewController containing two UIViewController subclasses. When a button is tapped, the first one presents modally and as UIModalPresentationFormSheet a UIViewController subclass called Modal. In there, when a button is tapped, another UIViewController subclass called Text is presented, this time as UIModalPresentationFullScreen. In Text, there is a UITextView. When it is tapped, everything is alright, but when the iPad is rotated, I get this:
The white part is the Text view controller, the red part in the background is ViewControllerTwo.
Does anybody have any idea why this happens? And what I can do to fix it?
Here is the Project: MediaFire
Here is the relevant source code:
// AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
ViewControllerOne *one = [[ViewControllerOne alloc] init];
ViewControllerTwo *two = [[ViewControllerTwo alloc] init];
UISplitViewController *split = [[UISplitViewController alloc] init];
split.viewControllers = [NSArray arrayWithObjects:one, two, nil];
self.window.rootViewController = split;
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
// ViewControllerOne.m
#import "Modal.h"
#implementation ViewControllerOne
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor blueColor];
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(30, 30, 44, 44);
[button addTarget:self action:#selector(buttonTapped) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
}
- (void)buttonTapped
{
Modal *modalOne = [[Modal alloc] init];
modalOne.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentModalViewController:modalOne animated:YES];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES;
}
// Modal.m
#import "Text.h"
#implementation Modal
- (void)viewDidLoad
{
[super viewDidLoad];
UIButton *buttonOne = [UIButton buttonWithType:UIButtonTypeRoundedRect];
buttonOne.frame = CGRectMake(30, 30, 44, 44);
buttonOne.tag = 1;
[buttonOne addTarget:self action:#selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
UIButton *buttonTwo = [UIButton buttonWithType:UIButtonTypeRoundedRect];
buttonTwo.frame = CGRectMake(30, 100, 44, 44);
buttonTwo.tag = 2;
[buttonTwo addTarget:self action:#selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:buttonOne];
[self.view addSubview:buttonTwo];
}
- (void)buttonTapped:(UIButton *)button
{
if (button.tag == 1)
{
Text *text = [[Text alloc] init];
text.modalPresentationStyle = UIModalPresentationFullScreen;
[self presentModalViewController:text animated:YES];
}
else
{
[self dismissModalViewControllerAnimated:YES];
}
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES;
}
// Text.m
#implementation Text
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor greenColor];
UITextView *textView = [[UITextView alloc] initWithFrame:self.view.bounds];
textView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
[self.view addSubview:textView];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES;
}
You may need to present the modal views from the UISplitViewController instead of it's subviews...
UISplitViewController *splitViewController = [(AppDelegate *)[[UIApplication sharedApplication] delegate] splitViewController];
[splitViewController presentModalViewController:modal animated:YES];