I want to use timer with UIDatePickerView?
What I want to write code?
Pls help me.
Change mode of UIDatePickerView to timer....Do as i had done below
// Add the picker
UIDatePicker *pickerView = [[UIDatePicker alloc] initWithFrame:CGRectMake(0,100,0,0)];
[pickerView setDatePickerMode:UIDatePickerModeCountDownTimer];
[self.view addSubview:pickerView];
[self.view setBounds:CGRectMake(0,0,320, 500)];
[pickerView release];
Good Luck!
Related
I use [self setToolbarItems:items]; to add buttons to toolbar I want to display subview to be above all even teh toolbar I use the following code , but it be behind the tool bar
any suggestion how to make it above
pickerView = [[UIPickerView alloc]initWithFrame:CGRectMake(0,744, 768, 216)];
mytab = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 700, 768, 44)];
pickerView.alpha=0.0;
mytab.alpha=0.0;
pickerView.showsSelectionIndicator = YES;
pickerView.dataSource = self;
pickerView.delegate = self;
[self.view addSubview:pickerView];
[self.view bringSubviewToFront:pickerView];
mytab.tintColor=[UIColor blackColor];
UIBarButtonItem * bt1=[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(_cancel)];
UIBarButtonItem * flx=[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
NSArray *arr=[[NSArray alloc] initWithObjects:flx,bt1,nil];
[mytab setItems:arr];
[self.view addSubview:mytab];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
pickerView.alpha=1.0;
mytab.alpha=1.0;
[UIView commitAnimations];
[pickerView release];
[mytab release];
[bt1 release];
[flx release];
[arr release];
you are adding the tool bar after the picker ... add the tool bar fist and then the picker...
actually i think you should be presenting the picker as a modal view controller's view..
EDIT:
You can see how a modal view controller is displayed in appple's sample codes. Look for presentModalViewController method
SimpleEKDemo
Metronome
I simply subtract 44 from the Y of pickerview and toolbar
I want to make the font size smaller for the text in the buttons of my action sheet as my text is longer than the width.
How can I make the font size smaller?
I'm guessing as you can add things like picker views to action sheets that I may need to add my own buttons to the action sheet, if so how ?
I need an example.
EDIT: I've made a little progress, but the actual button isn't shown, but you can see it working with the change in the button text when you click on it.
UIActionSheet *menu = [[UIActionSheet alloc] initWithTitle:#"Date Picker"
delegate:self
cancelButtonTitle:#"Cancel"
destructiveButtonTitle:nil
otherButtonTitles:#"OK",nil];
CGRect frame = CGRectMake(100.0, 80.0, 100.0, 40.0);
UIButton *pickerView = [[UIButton alloc] initWithFrame:frame];
[pickerView setTitle:#"FRED" forState:UIControlStateNormal];
[pickerView setTitle:#"Go Back" forState:UIControlStateNormal];
[pickerView setTitleColor:[UIColor blackColor] forState:UIControlEventTouchDown];
pickerView.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
pickerView.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;
//[removeButton addTarget:self action:#selector(buttonEvent:) forControlEvents:UIControlEventTouchDown];
[pickerView setBackgroundColor:[UIColor blueColor]];
[menu addSubview:pickerView];
[menu showInView:self.view];
[pickerView release];
[menu release];
You may be able to do this directly, but note that actionsheet buttons are not standard UIButtons, but are their own special private control subclass. For this reason, when I need to customize an action sheet, I add my own custom subview to the UIActionSheet and then resize the sheet to match. The downside is that to match the look and feel I need a custom button image background. I adapted (but didn't check in a compiler) this example from Fitting a UIDatePicker into a UIActionSheet. Instead of the picker, just add your xib created UIView.
UIDatePicker *pickerView = [[UIDatePicker alloc] init];
pickerView.datePickerMode = UIDatePickerModeDate;
[myUIActionSheet addSubview:pickerView];
[myUIActionSheet showInView:self.view];
[myUIActionSheet setBounds:CGRectMake(0,0,320, myUIActionSheet.bounds.size.height + pickerView.bounds.size.height)];
CGRect pickerRect = pickerView.bounds;
pickerRect.origin.y = - pickerView.bounds.size.height; //you may need to change this offset
pickerView.bounds = pickerRect;
[pickerView release];
[myUIActionSheet release];
EDIT: To include a subview from a xib, add a UIView to the top level of the xib and wire it to a UIView property in your controller just as if it was a normal interface component. Within your controller, it will now be available.
You can also wire button actions normally instead of using the action sheet callback. You will need to close the action sheet after the press with something like [myUIActionSheet.dismissWithClickedButtonIndex:0 animated:YES]; I think that dismissing it as if it is modal will also work, IIRC.
When click a button,I want to popup a view form bottom,like this!
Any help is welcome,thanks.
Use the presentModalViewController:animated: method. See the docs for details on its use.
If you want to reproduce what is seen in the screenshot you linked you can also put a picker in a UIActionSheet like so:
UIActionSheet datePickerSheet = [[UIActionSheet alloc] initWithTitle:NSLocalizedString(#"Select Date",#"Selecte Date")
delegate:self
cancelButtonTitle:NSLocalizedString(#"Done",#"Done")
destructiveButtonTitle:NSLocalizedString(#"Cancel",#"Cancel")
otherButtonTitles:nil];
// Add the picker
datePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0,185,0,0)];
[datePicker addTarget:self action:#selector(dateDidChange) forControlEvents:UIControlEventValueChanged];
[datePickerSheet addSubview:datePicker];
[datePickerSheet showInView:self.view];
[datePickerSheet setBounds:CGRectMake(0,0,320, 700)];
[datePicker release];
[datePickerSheet release];
I have my pickerview set up and everything works fine, but right now I have that big pickerview taking up a lot of space in Interface Builder. It's annoying having to move it around when working in Interface Builder. How do I set the pickerview and it's location without using IB?
Try this:
// Add the picker
UIDatePicker *pickerView = [[UIDatePicker alloc] initWithFrame:CGRectMake(0,100,0,0)];
[pickerView setDatePickerMode:UIDatePickerModeTime];
[self.view addSubview:pickerView];
[self.view showInView:self.view];
[self.view setBounds:CGRectMake(0,0,320, 500)];
[pickerView release];
The above code is for UIDatePicker, you may similarly implement it for other types of uipickers as well.
Someone posted this code in another question to put a UIDatePicker in a UIAlertSheet:
UIActionSheet *menu = [[UIActionSheet alloc] initWithTitle:#"Date Picker"
delegate:self
cancelButtonTitle:#"Cancel"
destructiveButtonTitle:nil
otherButtonTitles:nil];
// Add the picker
UIDatePicker *pickerView = [[UIDatePicker alloc] init];
pickerView.datePickerMode = UIDatePickerModeDate;
[menu addSubview:pickerView];
[menu showInView:self.view];
[menu setBounds:CGRectMake(0,0,320, 500)];
CGRect pickerRect = pickerView.bounds;
pickerRect.origin.y = -100;
pickerView.bounds = pickerRect;
[pickerView release];
[menu release];
I have modified it to this:
UIActionSheet *menu = [[UIActionSheet alloc] initWithTitle:nil
delegate:nil
cancelButtonTitle:#"Done"
destructiveButtonTitle:nil
otherButtonTitles:nil];
// Add the picker
UIDatePicker *pickerView = [[UIDatePicker alloc] init];
pickerView.datePickerMode = UIDatePickerModeCountDownTimer;
[menu addSubview:pickerView];
[menu showInView:self.navigationController.tabBarController.view];
[menu setBounds:CGRectMake(0,0,320, 516)];
[pickerView setFrame:CGRectMake(0, 85, 320, 216)];
This yields an alert sheet correctly positioned (ignore the nil delegate; this is just for display purposes). The problem lies here:
(source: hosting-wizards.com)
As you can see, above the minute scroller, there is a layering problem. I have not confirmed if this occurs on the device. Any ideas as to why this is happening?
Another question: Why does the setBounds selector on the UIActionSheet have the Y-size set at such a high value for correct display? Setting the Y-size to 480 should create a full screen display, should it not? Setting this value to zero makes it nearly invisible.
SIDE NOTE: The code pasted above does not position the UIDatePicker in the same place that it is in the picture, but the layering problem occurs no matter where the UIDatePicker is placed. The layering issue is only on the top, not on the bottom.
You will avoid the display problem and get a much better looking result if you simply put the UIDatePicker in a new view and implement the slide-up-from-the-bottom behavior yourself. It's not that hard.
Create a UIView containing a date picker and a toolbar with a Done button on it. (In code or use Interface Builder, doesn't matter.)
Add the popup view as a subview of your main view.
Set the popup view's frame so that it is off the bottom of the screen: frame.origin.y = CGRectGetMaxY(mainView.bounds)
Call [UIView beginAnimations:nil context:nil]
Set the frame to where it should be: frame.origin.y -= CGRectGetHeight(popupView.bounds)
Call [UIView commitAnimations]
(Note that the frame setting stuff is pseudocode.)
That's it. Do it in reverse when you need to dismiss the view. I think it will be worth the trouble; sticking a date picker in a UIActionSheet looks incredibly tacky.
Using benzado's steps above, here's roughly what your code would look like if you use a UIView instead of an ActionSheet:
int height = 255;
//create new view
UIView * newView = [[UIView alloc] initWithFrame:CGRectMake(0, 200, 320, height)];
newView.backgroundColor = [UIColor colorWithWhite:1 alpha:1];
//add toolbar
UIToolbar * toolbar = [[UIToolbar alloc] initWithFrame: CGRectMake(0, 0, 320, 40)];
toolbar.barStyle = UIBarStyleBlack;
//add button
UIBarButtonItem *infoButtonItem = [[UIBarButtonItem alloc] initWithTitle:#"Done" style:UIBarButtonItemStyleDone target:self action:nil];
toolbar.items = [NSArray arrayWithObjects:infoButtonItem, nil];
//add date picker
UIDatePicker *datePicker = [[UIDatePicker alloc] init];
datePicker.datePickerMode = UIDatePickerModeDate;
datePicker.hidden = NO;
datePicker.date = [NSDate date];
datePicker.frame = CGRectMake(0, 40, 320, 250);
[datePicker addTarget:self action:nil/*#selector(changeDateInLabel:)*/ forControlEvents:UIControlEventValueChanged];
[newView addSubview:datePicker];
//add popup view
[newView addSubview:toolbar];
[self.view addSubview:newView];
//animate it onto the screen
CGRect temp = newView.frame;
temp.origin.y = CGRectGetMaxY(self.view.bounds);
newView.frame = temp;
[UIView beginAnimations:nil context:nil];
temp.origin.y -= height;
newView.frame = temp;
[UIView commitAnimations];
I agree, it looks a lot better than using ActionSheets which are designed to display buttons, not pickers. You still need to add your own action handlers on the "Done" button and when the user changes the picker but this should get you started.
Do you really need to put your picker on the UIActionSheet? Why don't you use an inputView property from UIResponder class? It shows UIDatePicker (or any other view) automatically when your control (e.g. UITextField) becomes a first responder.
An example of using inputView with source code can be found here: Working with pickers.
try this
[menu sendSubviewToBack: pickerView];
and also move your picker 10 pixels down as you see in the screenshot it is not aliged to the bottom, might be
[pickerView setFrame:CGRectMake(0, 100, 320, 216)];
You might find this thread helpful for an alternative approach: http://discussions.apple.com/message.jspa?messageID=7923095