Iphone:用逗号分隔一个字符串,然后在pickerview中打印每一行

Question

我得到了一个字符串mild,medium,hot.我用逗号分隔字符串作为分隔符.我也需要在pickerView中打印它.
我使用以下代码并将List计数成功3.

    NSString *spList=[mdict objectForKey:@"spicinesstype"];
    NSArray *list = [spList componentsSeparatedByString:@","];
    NSLog(@"List count:%d",[list count]);
    return [list count];

但是如何在pickerview中显示所有3个项目

Answer 1

您应该将您的类设置为选择器视图的委托,然后为您的选择器实现这3个委托方法

- (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component {
    return [array count];
}

- (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
    return [array objectAtIndex:row];
}

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