how to call the picker view content in table view..is there any method to call the picker view content?pls help me...
I think you would have used this delegate to put your content into the picker.
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
return yourPickerContentArray;
}
I think that yourPickerContentArray will have the content of the picker. why dont you use that array where you want.
Related
I have a UIPicker with 7 items in it. (only one component)... If I click on the first item in the Picker (without ANY SCROLLING of the picker), the text results I get back are null.
However, If I so much as "tug" downward on the list and THEN CLICK item #1 it works fine.
If I click ANY other item, it always returns the right result. Of course, the list has to scroll in order for those items to get selected.
What is happening to cause this? Is there a delegate function I need to call? Is there some way to default the selection to the first item in the list, if they never click anything?
Thanks,
Phil
Here is a snippet from "viewdidload" in my .m
- (void)viewDidLoad {
[super viewDidLoad];
NSLog(#">>> Entering %s <<<", __PRETTY_FUNCTION__);
listOfTerms=[[NSArray alloc]initWithObjects:
#"Fall Semester",#"Spring Semester",#"Summer Session",#"Q1",#"Q2",#"Q3",#"Q4",nil];
...
...
Here are the other 4 UIPickerView delegate functions I have defined.
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView
numberOfRowsInComponent:(NSInteger)component {
return [listOfTerms count];
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
return [listOfTerms objectAtIndex:row];
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row
inComponent:(NSInteger)component {
selectedTerm =[[NSString alloc]
initWithFormat:#"%#",
[listOfTerms objectAtIndex:row]];
}
pickerView:didSelectRow:inComponent: is only called when the picker view scrolls. So if you never scroll the view, the method never gets called and therefore selectedTerm is never set. The fix is simple, initialize selectedTerm in viewDidLoad:.
The most simple answer for all situation is to imply didSelectRow in viewDidAppear
(Please note that it is NOT viewDidLoad method)
- (void) viewDidAppear:(BOOL)animated{
[self pickerView:[self yourpickerview] didSelectRow:0 inComponent:0;
}
Im new to iphone development.In my application i want to add image picker for list of image names.here i added picker view and i dont no how to add list of image names programmiticaly in iphone with out using IB.
can any one plz give me code for displaying image names programmiticaly in pickerview.
Thankyou in advance.
#user549767 the answer of dks1725 is correct way to give images to your pickerview.....but in order to add pickerView programatically follow the below link....
UIPickerview in iphone
in viewDidLoad method make an array of your image names like below
-(void)viewDidLoad
{
arr=[[NSArray alloc] initWithObjects:#"image_name1",#"image_name2",#"image_name3",nil];
}
Now in picker view's delegate method write below code
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 1;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
return [arr count];
}
-(NSString *) pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
return [arr objectAtIndex:row];
}
it's possible add as item in the uipickerview some images/icons instead of text?
thanks
yes it is absolutely possible. u need to handle pickerView delegate method
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row
forComponent:(NSInteger)component reusingView:(UIView *)view
here you simply return custom view(could be anything UIImage UILabel)
and set userInteractionEnable property to no for customize view..
Hey! I have a UIPicker, and I am using the function:
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row
forComponent:(NSInteger)component reusingView:(UIView *)view {
But, when you tap one of the views returned by this function, the tapped view does not become highlighed, and selected if the touch is released. How can I fix that?
Make use of this property,
pickerView.showsSelectionIndicator = YES;
at initialization.
How can you dynamically add values to UIPickerView at runtime.
I'm using the following code to populate a UIPickerView statically. Need to add
values dynamically at run time, for e.g. Three, Four etc.
- (NSString *) pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
NSString *title = nil;
if(row==0){
title = #"One";
}
if(row==1){
title = #"Two";
}
If you had an array of the titles, you could use something like:
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
return [titles objectAtIndex:row];
}
The titles will be refreshed when you call [pickerView reloadAllComponents] (or reloadComponent: if you have more than one column and only want to refresh one of them).
Hey I had a problem with UIPickerView..... when I call reloadAllComponents it wasn't calling widthForComponent, but it was calling other delegate methods such as titleForRow.... I have no idea why this is, perhaps apple doesn't want the width changing dynamically? anyway it was on another screen so I didn't have the animation/no-animation issue. I found that by resetting the delegate of the picker, I could get widthForComponent to be called again!
i.e.
picker.delegate = view;
where view implements UIPickerViewDelegate.... hope this helps someone out there!