UIPIckerView issue - iphone

Question

I have the code below in my app. I show a UIPickerView with options, and I have a TextView placed on the same UIViewController .
when the picker is shown with options, the rest of the view seems not in focus and only when I resign the uipicker, the entire view gets focus.
what is the problem here?
-(void)viewWillAppear:(BOOL)animated {
myActionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:nil cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil];
UIPickerView *pickerViewCountry = [[UIPickerView alloc] init];
pickerViewCountry.showsSelectionIndicator = YES;
pickerViewCountry.dataSource = self;
pickerViewCountry.delegate = self;
pickerViewCountry.frame = CGRectMake(0,35 , 320, 15);
[myActionSheet addSubview:pickerViewCountry];
[pickerViewCountry release];
closeButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:#"Done"]];
closeButton.momentary = YES;
closeButton.frame = CGRectMake(260, 7.0f, 50.0f, 27.0f);
closeButton.segmentedControlStyle = UISegmentedControlStyleBar;
closeButton.tintColor = [UIColor blackColor];
[closeButton addTarget:self action:#selector(hidePicker) forControlEvents:UIControlEventValueChanged];
[myActionSheet addSubview:closeButton];
[closeButton release];
[myActionSheet showInView:self.view];
[myActionSheet setBounds:CGRectMake(0, 0, 320, 250)];
UITextView *myTextView = [[UITextView alloc] init];
myTextView.frame = CGRectMake(100, 12, 210, 20);
myTextView.layer.borderWidth = 1.0f;
myTextView.layer.cornerRadius = 5;
myTextView.clipsToBounds = YES;
myTextView.layer.borderColor = [[UIColor grayColor] CGColor];
myTextView.text = #"some text";
[self.view addSubview:myTextView];
[myTextView sizeToFit];
}

Answer 1

You've placed your UIPickerView inside UIActionSheet. That's standart behavior for UIActionSheet. Try to use keyboardView instead like so:
UITextField* dummyTextField = [[UITextField alloc]initWithFrame:CGRectMake(0, -20, 10, 10)];//the point is to put it outside visible view
dummyTextField.inputView = pickerViewCountry;
[dummyTextField becomeFirstResponder];//call to appear
[dummyTextField resignFirstResponder];//call do disappear
and for the buttons you can use folloving:
dummyTextField.inputAccessoryView = <some toolbar with buttons or any other view>
Happy coding :)

Answer 2

I will suggest you one solution with custom View.
datePickerContainer is UIView:
//datepicker
datePickerContainer = [[UIView alloc] initWithFrame:CGRectMake(0, 440, 310, 300)];
datePickerContainer.opaque = YES;
datePickerContainer.backgroundColor = [UIColor clearColor];
UIImageView *pickerNavBar = [[UIImageView alloc] init];
UIImage *barImage = [UIImage imageNamed:#"pickerbar.png"];
pickerNavBar.image = barImage;
pickerNavBar.frame = CGRectMake(0, 7, barImage.size.width, barImage.size.height);
[datePickerContainer addSubview:pickerNavBar];
[pickerNavBar release];
UIButton* blueButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[blueButton setTitle:#"Done" forState: UIControlStateNormal];
blueButton.frame = CGRectMake(255, 15, 55, 30);
[blueButton addTarget:self action:#selector(hidePickerViewContainer) forControlEvents:UIControlEventTouchUpInside];
[datePickerContainer addSubview:blueButton];
[blueButton release];
//UIPickerView Initialization code
UIPickerView *pickerViewCountry = [[UIPickerView alloc] init];
pickerViewCountry.showsSelectionIndicator = YES;
pickerViewCountry.dataSource = self;
pickerViewCountry.delegate = self;
pickerViewCountry.frame = CGRectMake(0,35 , 320, 15);
[datePickerContainer addSubview:pickerViewCountry];
[pickerViewCountry release];
//set container and release
[self.view addSubview: datePickerContainer];
[datePickerContainer release];
To show datePickerContainer UIVie use this code:
-(void)showPickerViewContainer{
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.4];
CGRect frameContainer = datePickerContainer.frame;
frameContainer.origin.y = 150.0f;
datePickerContainer.frame = frameContainer;
[UIView commitAnimations];
}
To handle done button and hide pickerView use this:
-(void)hidePickerViewContainer{
//here use you custom code to handle done action
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.4];
CGRect frameContainer = datePickerContainer.frame;
frameContainer.origin.y = 440.0f;
datePickerContainer.frame = frameContainer;
[UIView commitAnimations];
}
This is just a custom solution. Hope this help.

Answer 3

declare variable in header file
UIActionSheet *actionSheet;
NSString *pickerType;
Write Below code into your implementation file:
- (void)createActionSheet {
if (actionSheet == nil) {
// setup actionsheet to contain the UIPicker
actionSheet = [[UIActionSheet alloc] initWithTitle:#"Select"
delegate:self
cancelButtonTitle:nil
destructiveButtonTitle:nil
otherButtonTitles:nil];
UIToolbar *pickerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
pickerToolbar.barStyle = UIBarStyleBlackOpaque;
[pickerToolbar sizeToFit];
NSMutableArray *barItems = [[NSMutableArray alloc] init];
UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
[barItems addObject:flexSpace];
[flexSpace release];
UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(pickerDone:)];
[barItems addObject:doneBtn];
[doneBtn release];
[pickerToolbar setItems:barItems animated:YES];
[barItems release];
[actionSheet addSubview:pickerToolbar];
[pickerToolbar release];
[actionSheet showInView:self.view];
[actionSheet setBounds:CGRectMake(0,0,320, 464)];
}
}
-(IBAction)BtnPressed:(id)sender
{
[self createActionSheet];
pickerType = #"picker";
select = NO;
UIPickerView *chPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0.0, 44.0, 0.0, 0.0)];
chPicker.dataSource = self;
chPicker.delegate = self;
chPicker.showsSelectionIndicator = YES;
[actionSheet addSubview:chPicker];
sessoTxt.text = [sessoArray objectAtIndex:0];
[chPicker release];
}
declare delegate methods
#pragma mark UIPickerViewDelegate Methods
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
int count;
if ([pickerType isEqualToString:#"picker"])
count = [array count];
return count;
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
NSString *string;
if ([pickerType isEqualToString:#"picker"])
string = [array objectAtIndex:row];
return string;
}
// Set the width of the component inside the picker
- (CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component {
return 300;
}
// Item picked
- (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
select = YES;
if ([pickerType isEqualToString:#"picker"])
{
Txt.text = [array objectAtIndex:row];
}
}
- (void)pickerDone:(id)sender
{
if(select == NO)
{
if ([pickerType isEqualToString:#"picker"])
{
Txt.text = [array objectAtIndex:0];
}
}
[actionSheet dismissWithClickedButtonIndex:0 animated:YES];
[actionSheet release];
actionSheet = nil;
}
}