UITextView to Calculation Not Working

Consider the following code:

Here is my price calculator controller header file.

#import <Foundation/Foundation.h>
#import "PriceCalculator.h"

@interface PriceCalculatorController : UITextField {

    IBOutlet UITextField *mpgField;
    IBOutlet UITextField *milesField;
    IBOutlet UITextField *priceField;
    IBOutlet UITextField *ridersField;
    IBOutlet UITextField *splitField;

    PriceCalculator *calculator;
}


-(IBAction)calculator:(id)sender;

@end

Here is its implementation file:

#import "PriceCalculatorController.h"

@implementation PriceCalculatorController


- (IBAction)calculator:(id)sender {

    float split;

    calculator = [[PriceCalculator alloc]init];


    [calculator setMpg:[mpgField float]];
    [calculator setRiders: [ridersField float]];
    [calculator setMiles: [milesField float]];
    [calculator setPrice: [priceField float]];


    split = [calculator CalculateSplit];

    [sp开发者_运维百科litField setFloatValue:split];
}
@end

It's giving me the error:

receiver type 'UITextField' for instance message does not
declare a method with selector 'float' [4]

What's going on?

this may help you: http://www.iphonedevsdk.com/forum/iphone-sdk-development/87944-uitextview-calculation-not-working.html

#import "PriceCalculatorController.h"

@implementation PriceCalculatorController


- (IBAction)calculator:(id)sender {

    float split;

    calculator = [[PriceCalculator alloc]init];


    [calculator setMpg:[mpgField.text floatValue]];
    [calculator setRiders: [ridersField.text floatValue]];
    [calculator setMiles: [milesField.text floatValue]];
    [calculator setPrice: [priceField.text floatValue]];


    split = [calculator CalculateSplit];

    [splitField setFloatValue:split];
}
@end

You are trying to call the method float on each of your fields, and there IS no method float

Perhaps you meant something like [mpgField.text floatValue]; instead.

You are using wrong code
change method like this

    [calculator setMpg:[mpgField floatValue]];
    [calculator setRiders: [ridersField floatValue]];
    [calculator setMiles: [milesField floatValue]];
    [calculator setPrice: [priceField floatValue]];

You need to for a start define all of your IBOulets as @property(nonretain, atomic) ... and then synthesise them.

You will then need to call

[[fieldname text] floatValue]

on the fields.

EDIT:

Here's the code you want:

[calculator setMpg:[[mpgField text] floatValue]];
[calculator setRiders: [[ridersField text] floatValue]];
[calculator setMiles: [[milesField text] floatValue]];
[calculator setPrice: [[priceField text] floatValue]];