IOS代码布局（七） UIPickerView

UIPickerView * picViewBid = [[UIPickerView alloc]initWithFrame:CGRectMake(rect.size.width/2-10,lblBid.frame.origin.y-40, 150, 120)];

    picViewBid.delegate = self;
    picViewBid.dataSource = self;

@interface starViewController<UIPickerViewDelegate>: UIViewController
{
    CGRect rect;
}

@end

[bgTopView addSubview:picViewBid];

-(void)loadData{
    pickerCon = @[@"11",@"222",@"333"];
}

-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
    return 1;
}

-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
    return 3;
}

-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
    //    title = pickerCon[row];
    switch (row) {
        case 0:
            return @"6.v";
            break;
        case 1:
            return @"goodshow";
            break;
        case 2:
            return @"sixshow";
        default:
            break;
    }
    return pickerCon[row];
}