iPhone UITextField inputView错误：分配给只读属性

Question

I am having issues when I want to assign UIPicker as inputView of UITextField. It shows error " Assignement to readonly property ". Please help as I think it is not related to property sythesizing.

I have added my code below:

@interface DriverWaitingDetails : UIViewController<UITextFieldDelegate,UIPickerViewDataSource, UIPickerViewDelegate>
{

IBOutlet UILabel *baseLabel;
IBOutlet UITableView *driverTableView;
IBOutlet UIPickerView *basePicker;
}

 @property(nonatomic, retain) IBOutlet UIPickerView *basePicker;
 @property(nonatomic,retain)IBOutlet UILabel *baseLabel;
 @property(nonatomic,retain)IBOutlet UITableView *driverTableView;


@end

Implementation Code:-

-(void)viewDidLoad
{

basePicker=[[UIPickerView alloc] initWithFrame:CGRectMake(0,100,320, 500)];
self.navigationItem.title=@"Driver Table";
baseLabel.userInteractionEnabled = YES;
basePicker.delegate = self;
basePicker.dataSource = self;
[basePicker setShowsSelectionIndicator:YES];
baseLabel.inputView=nil;
[super viewDidLoad];    
}

Attached Screenshot:-

Answer 1

You are setting the input view of UILabel . You declared baseLabel as UILabel not UITextField .

IBOutlet UILabel *baseLabel;

Answer 2

You have declared

IBOutlet UILabel *baseLabel;

UILabel inherits from UIView : UIResponder : NSObject and the property is defined in UIResponder :

@property (readonly, retain) UIView *inputView

As the property inputView is read only, you cannot assign any value to it.