我试图填充我的UIPickerView与JSON数组的类别。我需要根据选择器的选择返回结果。我该怎么做呢?
你必须实现UIPickerViewDatasource &UIPickerViewDelegate协议
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 5;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView
numberOfRowsInComponent:(NSInteger)component
{
return 1;
}
- (NSString *)pickerView:(UIPickerView *)pickerView
titleForRow:(NSInteger)row
forComponent:(NSInteger)component
{
if (component == 0)
return @"What";
if (component == 1)
return @"have";
if (component == 3)
return @"you";
if (component == 4)
return @"tried";
return @"?";
}