在 uipickerview 中插入图像之前
在 uipickerview 中插入图像后
- (UIView *) pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row
forComponent:(NSInteger)component reusingView:(UIView *)view {
CGRect imageFrame = CGRectMake(0.0, 0.5, 255, 250);
UIImageView *label = [[UIImageView alloc]
initWithFrame:imageFrame];
label.backgroundColor=[UIColor scrollViewTexturedBackgroundColor];
[label sendSubviewToBack:pview];
[pview sendSubviewToBack: label];
[pview addSubview:label];
return label;
}