I want to transfer a UITextField properties to another UITextField. How can I do so?
Here's my complete scenario:
I have created a custom cell in which I have a UITextField.
Now when I'm using this UITextField in my UITableView i want to assign already existing
UITextField's property to this cell's UITextField. I tried
cell.myCustomTextField = myAlreadyCreatedTextField;
Also tried to transfer individual properties like
cell.myCustomTextField.borderStyle = myAlreadyCreatedTextField.borderStyle;
but this also didn't work.
Please help
If you need multiple UITextFields with the same properties you can make an initializer like this.
myField = [self fieldWithLabel:#"Placeholder" withTextField:myField withFrame:CGRectMake(0,0,260,45) withKeyboard:UIKeyboardTypeNumberPad];
//
-(UITextField *)fieldWithLabel:(NSString *)name withTextField:(UITextField *)field
withFrame:(CGRect)frame withKeyboard:(UIKeyboardType)keyboard
{
CGRect fieldFrame = frame;
field = [[UITextField alloc] initWithFrame:fieldFrame];
field.placeholder = name;
field.autocorrectionType = UITextAutocorrectionTypeNo;
field.textAlignment=UITextAlignmentLeft;
field.userInteractionEnabled = YES;
field.enabled = YES;
field.enablesReturnKeyAutomatically= NO;
field.clearsOnBeginEditing = NO;
field.delegate = self;
field.returnKeyType = UIReturnKeyDone;
field.keyboardType = keyboard;
return field;
}
Controls (like NSTextField) each have an associated cell which
contains the display attributes of the control. NSCell and its
subclasses implement copying, so you can copy the cell instead of the
view (which does not support NSCopying).
Alternatively, NSViews support NSCoding, so generally speaking if you
have a view or subclass that you need to replicate, one way to do it
is to archive it and then unarchive it for however many "copies" you
might need.
From Source.
IN SHORT : It is not possible to assign a property of one control to another control.
Because Apple/iOS does not provide this type of feature.
But you can get text of one UITextField to another UITextField, by
textField1.text = textField2.text;
Related
How can I read UITextField value in an IBAction? I'm creating UITextField programmatically. So I can't set #property and #synthesize using Xcode. The code to generate UITextField is as follows:
for(i=0; i<[fieldName count]; i++)
{
UITextField *name = [fieldName objectAtIndex:i];
frame = CGRectMake(fromLeft, fromTop, totalWidth, totalHeight);
name = [[[UITextField alloc] initWithFrame:frame] autorelease];
name.borderStyle = UITextBorderStyleRoundedRect;
name.returnKeyType = UIReturnKeyDone;
//name.placeholder = [fieldName objectAtIndex:i];
name.autocapitalizationType = UITextAutocapitalizationTypeWords;
name.adjustsFontSizeToFitWidth = TRUE;
name.keyboardType = UIKeyboardTypeDefault;
[name addTarget:self action:#selector(doneEditing:) forControlEvents:UIControlEventEditingDidEndOnExit];
[scroller addSubview:name];
fromTop = fromTop + 40;
}
Now I want to read values of each textbox in a button click (IBAction). Can anyone help me please?
You could use something like this to loop through all UITextFields that are subviews of self.view and add their text to a NSMutableArray:
for (UITextField *field in self.view.subviews) {
if ([field isKindOfClass:[UITextField class]]) {
if ([[field text] length] > 0) {
[someMutableArray addObject:field.text];
}
}
}
if your doneEditing: looks like this doneEditing:(id)sender then you can say:
UITextField *field = (UITextField *)sender;
NSString *myText = field.text;
EDIT:
To access a UITextField without setting as an instance variable you need to tag it when you create it:
[textField setTag:1];
then whenever you want to access it you can get it from its parent view by the tag:
UITextField *myTextField = [scroller viewWithTag:1];
NSString *myString = myTextField.text;
in your case, set the tag to i+1 for example to have all the textfield with unique tags.
implement the IBAction function like the following:
-(IBAction) doneEditing:(UITextField*)sender
{
NSString * val = sender.text;
}
try using the UITextFieldDelegate , i think its better for your case.
add each UITextField a Tag and by that you will recognise the UITextField.
NSString *value = sender.text;
If inside an IBAction, of course.
Which ignores that there is a set of text fields, and a single button action.
The simplest solution to the overall problem would be to store a set (or array) of text fields in an instance variable, and iterate over that set in the button action. But that is a rather coarse approach; it is probably better to use the text field delegate method and store text values directly in an array, using the button to trigger the save.
In addition, Apple HIG would tell you that you should update your data model as the text fields are edited, rather than use a "Save" button - which is poor UX design - unless, of course, the values of individual fields can interact.
My question is kind of general; in my project I have 10 UIButton objects
named Button1, Button2, Button3, Button4, Button5, Button6, Button7, Button8, Button9, and Button10
I also have UIImageview That are named exactly like the buttons from 1 to 10.
I want to write a code that will manipulate the image by the last character of the button (always a number from 1 to 10) and will affect the UIImageview the same way
Something like this
buttonlastcharacter = i;
if(sender.lastcharacternumber is:i){
Button%,i.frame = //Some manipulation
But basically all that I want is to have access to a certain object by string
How can I implement such a behavior?
There are a couple of better ways to do this. If these buttons are all static and in IB you can use an IBCollection array for image views and buttons to simply call them up by matching indexes.
Better yet just use the tag value for the buttons or image views.
It is maybe not the ideal solution in your case, but you can do it different ways:
using kvo
UIButton* myButton = [self valueForKey:[NSString stringWithFormat:#"button%i",i]];
or with selectors and properties
UIButton* myButton = [self performSelector:NSSelectorFromString([NSString stringWithFormat:#"button%i",i])];
Hm, you could use an array for your buttons and a tag for your UIImageView objects. They all inherit from UIView, which provides you with a .tag propterty. It is of type NSInteger* .
For convenience reasons I would suggest to name the buttons from 0 to 9. It does not really matter but the first index in the array would be 0 and therefore naming them accordingly just makes things easier.
Define
NSArray *buttonArray;
You may opt for NSMutableArray depending what else you may want to do with it.
In viewDidLoad code:
buttonArray = [NSArray arrayWithCapacity:10];
buttonArray[0] = button0;
..
buttonArray[9] = button9;
In your XIB file in Interface Builder, or whereever you may create the UIImages programmatically, add the tags accordingly.
image0.tag = 0;
...
image0.tag = 9;
assuming you name them image0 to image9.
In your appropriate action method code:
buttonArray[sender.tag] = someManipulation;
You can do it like this,
In your IBAction method:
- (IBAction)click:(id)sender
{
UIButton *but = (UIButton *)sender;
but.frame = your manipulation code;
}
or you can check the title like:
if([but.currentTitle isEqualToString:#"Button1])
{
//Manipulate button 1
}
if you have added tags for the buttons from 1-10 you can use,
if(but.tag == 2)
{
//Manipulate button 2
}
I am trying to implement a suggestion offered by already answered question, but I am stuck on getting it to work, so looking for some help.
Here is the post I am trying to implement: http://stackoverflow.com/a/3067579/589310
I am trying to use the solution offered by "ridale" on how to make a "detailLabel" editable as part of a TableView. I hope it will allow me to directly edit a cell and enter a number. It doesn't seem too common as a UI, but "SmartRecord" does it and I want to emulate it.
Here is the only line that gives me an error:
UITextField *tmpView = [self detailLabel:indexPath];
I get this error:
Instance method -detailLabel: not found (return type defaults to 'id')
I assume it is because my self is different than the original poster.
I added a TableView directly to my existing controller. It is not a TableViewController directly:
#interface EditViewController : UIViewController
{
IBOutlet UITableView *tableSettings;
}
I can fill the table and interact with it, so I know it works (at some level anyway).
I have tried changing self to my table control or the cell directly:
UITextField *tmpView = [tableSettings detailLabel:indexPath];
I can't find anything that responds to the "detailLabel" method.
I am also not sure if the proposed solution is complete or uses more code not shown.
This is the only error I get, so I am hopeful once I solve it, it will work ;-)
-(UITextField*)detailLabel:(NSIndexPath*)indexPath is not present in UITableView or any other classes provided by Apple.
The frame position is just for sample. Modify that such that it would come in place of your detailLabel.
You have to write your own method which returns a UITextField, something as following
-(UITextField*)detailLabel:(NSIndexPath*)indexPath
{
UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, 100, 40)];
textField.delegate = self;
//assuming myList is array of NSString
NSString* str = [myList objectAtIndex:indexPath.row];
textField.text = str;
return [textField autorelease];
}
I am currently create a UITableViewCell with a UITextField in it.
On click of the text field, I want to bring up a number keyboard that I created. And as I type, the textfield should check the input for me; on click of other place, the keypad should be dismissed.
Code:
UITableViewCell *sizeCell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:#"sizeCell"];
sizeCell.textLabel.text = #"Size";
UITextField* sizeField = [[UITextField alloc] initWithFrame:CGRectMake(185, 10, 100, 28)];
sizeField.text = #"0";
sizeField.textAlignment = UITextAlignmentRight;
sizeField.textColor = [UIColor colorWithRed:50.0/255.0 green:79.0/255.0 blue:133.0/255.0 alpha:1.0f];
sizeField.backgroundColor = [UIColor clearColor];
sizeField.keyboardType = UIKeyboardTypeDecimalPad;
[sizeCell.contentView addSubview:sizeField];
rows = [[NSArray arrayWithObjects:switchCell, typeCell, sizeCell, nil] retain];
I tried to implement UITextFieldDelegate like:
-(BOOL)textFieldShouldReturn:(UITextField *)textField{
[sizeField resignFirstResponder];
return YES;
}
but the keyboard doesn't go away...
How do I validate the input and dismiss the keyboard?
You never set the delegate on your textfield so that textFieldShouldReturn: gets called. Make sure your class conforms to UITextFieldDelegate and then do the following:
...
UITextField* sizeField = [[UITextField alloc] initWithFrame:CGRectMake(185, 10, 100, 28)];
sizeField.delegate = self; //This is important!
sizeField.text = #"0";
...
A few observations:
As another poster suggested, make sure you set the keyboard's delegate correctly.
If you want to dismiss the keyboard on keyboard return, make sure you have one on your custom keyboard and it's correctly set up to call the ...ShouldReturn method.
If you want to dismiss on taps outside, you'll have to do that on your own.
You are declaring sizeField inside the method where you are setting it up, then calling it from another method outside that scope. I assume you have a class variable called sizeField or you'd be getting a compiler error. However, declaring it again when you're setting it up like you do shadows the class variable declaration so it never gets set up. Incidentally, that's a memory leak.
This shouldn't affect the actual running of the program if all else is correct (but it will if, e.g. 4 is the problem and not fixed), but I think it's better form to call [textField resign...] instead of [sizeField resign...]. At the least you should assert(textField == sizeField).
In my iphone app, I have created some UITextField in scrollView dynamically. And added one button in xib. On that button's TouchUpInside event, I opened UIImagePickercontroller to open photo library and taking selected image on UIImageView.
Now when modalview is dissmissed, values in my UITextField disappears.
How do I retain the UITextField values?
txt = [[UITextField alloc] initWithFrame:CGRectMake(10.0f, 30.0f, 200.0f, 30.0f)];
[txt addTarget:self action:#selector(keyDown:)forControlEvents:UIControlEventEditingDidEndOnExit];
txt.textColor = [UIColor blackColor];
txt.borderStyle = UITextBorderStyleBezel;
txt.autocorrectionType = UITextAutocorrectionTypeNo;
[fieldArray addObject:txt];
Using for loop I am adding txt to NSMutableArray fieldArray.
Here is the code where I fetch values from TextFields
NSMutableArray *insertValues = [[NSMutableArray alloc]init];
//Taking values from textFields
for (int i=1; i<=nooffields; i++) {
UITextField *tf = (UITextField *)[self.view viewWithTag:i];
NSLog(#"TF : %#",tf.text);
if (tf.text.length<=0) {
tf.text=#"";
}
[insertValues addObject:[NSString stringWithFormat:#"'%#'",tf.text]];
}
EDIT :
And also when I display values from database in this textFields and try to edit it. It gives me null values.
What may be the reason? If there any other alternatives? please help me
UITextField *textField=[[UITextField alloc]init];
[textField setFrame:CGRectMake(x,y, width, hight)];
[textField setBorderStyle:UITextBorderStyleRoundedRect];
[self.view addSubview:textField];
The information that your scrollview uses to get populated should be stored outside the scrollview, in a NSMutableDictionary for example. So everytime cellForRowAtIndexPath gets called it can retrieve the information from that source. So I advise you to store the UITextField's text within the dictionary. You can index it by its tag number. That way you won't loose whatever it contained.
I hope it helps you
Cheers
I finally got a work around for my problem.
I am temporarily storing my textField's values into database when presentModalViewController is called.
These values I retrieve back into the textFields on viewWillAppear.
This may not be a very efficient solution but it worked in my case.
Hope this helps someone.
Thanks for all your responses.