nsurlconnection http post request to post button value

Hi Petra,

it's very easy to identify a UIButton by its tag (nameOfButton.tag) but what do you mean by "radio buttons" as you wrote you're using UIButtons for this purpose. Wouldn't possibly a segmented control or switch make more sense for your purpose but maybe I'm just not getting the gist of your problem :-) It would be very helpful If you could go into more details here...

Kind Regards Holger

You can press a UIButton (Touch Up Inside for example) but what do you mean by "selects one of these three buttons" - I mean how do you select a UIButton? Do you programmatically change the UIButton instance if it has been pressed and then programmatically change the other two UIButton instances to an "unpressed state" of art? Why don't you like to use a segmented control or switch as each of these would be IMHO more adequate to the task at hand.

...then putting the post request together isn't hard but I really need to know how you utilize the UIButtons in this context before :)

Here is how I use it :

- (IBAction)btnOneClicked:(UIButton *)sender {
   btn1.selected = YES;
   btn2.selected = NO;
   btn3.selected = NO;
   }
  - (IBAction)btnTwoClicked:(UIButton *)sender {
  btn1.selected = NO;
  btn2.selected = YES;
  btn3.selected = NO;
 }
 - (IBAction)btnThreeClicked:(UIButton *)sender {
btn1.selected = NO;
btn2.selected = NO;
btn3.selected = YES;
}

you could use a property like

@property (weak, nonatomic) UIButton *selectedButton;

and then

(IBAction)btnOneClicked:(UIButton *)sender {
self.selectedButton = sender;
 }

(IBAction)btnTwoClicked:(UIButton *)sender {
self.selectedButton = sender;
 }

(IBAction)btnThreeClicked:(UIButton *)sender {
self.selectedButton = sender;
 }

and in your URL post generating method kind of

NSString *buttonName = @"";
// The button with tag 10 is named "Buttontext10" for example and so on...
if (self.selectedButton.tag == 10) {
  buttonName = @"Buttontext10";
} else if (self.selectedButton.tag == 20) {
  buttonName = @"Buttontext20";
} else if (self.selectedButton.tag == 30) {
  buttonName = @"Buttontext30";
}
NSString *post =[[NSString alloc] initWithFormat:@"name=%@&fieldOne=%@&fieldTwo=%@&buttonText=%@",[self.fieldOne text], [self.fieldTwo text], buttonName];

for example :)

and in your URL post generating method kind of

NSString *post =[[NSString alloc] initWithFormat:@"name=%@&fieldOne=%@&fieldTwo=%@&buttonText=%@",[self.fieldOne text], [self.fieldTwo text], self.selectedButton.currentTitle];

would be a smoother solution than the one with the tags of course :-)

I just tested a UIButton with an IBAction as above and self.selectedButton = sender;

runs fully functional so I don't know where the problem might be in your case as you've go a lot more code running :)

Can you please give me, the full code working with you ? knowing that when I select a button, the other ones got unselected (like in the sample I provided)

In my short test it's just a simple button on a view

and property

@property (weak, nonatomic) UIButton *buttonPressed;

and the IBAction

- (IBAction)testButtonPressed:(UIButton *)sender {
    self.buttonPressed = sender;
}

to verify your crash...

You've got the last pressed (aka "current selected") UIButton instance in the selectedButton property. You don't have to "unselect" another button or, as I already asked you, do you programmatically modify the graphical appearance of the instances of these UIButtons?

Can you please give me an appropriate answer based on my code and what I need ? Thanks in advance !

ok, then you just add the

   btn1.selected = YES/NO;
   btn2.selected = YES/NO;
   btn3.selected = YES/NO;

to the three (IBAction)btnXClicked: methods again to graphically modify these buttons accordingly.

Maybe it's to complex a topic to handle in a forum and without any further insight into your code (e.g. Github?) I'm afraid I couldn't be of more help for you, Petra - I'm sorry.

Kind Regards Holger