如何自定義選取器視圖

Question

我想在我的項目中自定義選取器視圖。在pickerview單元格中添加不同類型的圖像&也希望降低pickerview高度。

我向你展示圖像以獲得更多理解。

請幫助我。 如何實現這種類型的pickerview.I檢查自定義演示，但我沒有找到

Answer 1

將條件應用於UIPickerView的委託方法。

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{ 
UIImage *img = [UIImage imageNamed:[NSString stringWithFormat:@"your image number %@.png", (long)row]]; 
UIImageView *imageview= [[UIImageView alloc] initWithImage:img]; 
imageview.frame = CGRectMake(-70, 10, 60, 40); 

UILabel *channelLabel = [[UILabel alloc] initWithFrame:CGRectMake(50, -5, 80, 60)]; 
channelLabel.text = [NSString stringWithFormat:@"%@", [myArray objectAtIndex:row]]; 
channelLabel.textAlignment = UITextAlignmentLeft; 
channelLabel.backgroundColor = [UIColor clearColor]; 

UIView *tmpView_row = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 110, 60)]; 
[tmpView_row insertSubview:imageview atIndex:0]; 
[tmpView_row insertSubview:channelLabel atIndex:1]; 

return tmpView_row; 
}