TelegramInlineMultipageMenu/README.md

# Telegram Inline Multipage Menu

Multipage inline menu for Telegram Bots API

_powered with [rubenlagus/TelegramBots API](https://github.com/rubenlagus/TelegramBots)_


Create our own dynamical menu like this:

![](https://bvn13.tk/files/81) ![](https://bvn13.tk/files/82) ![](https://bvn13.tk/files/83) ![](https://bvn13.tk/files/84)


## Create your menu

```java
public class MenuBot extends TelegramLongPollingBot {

    private MenuManager menuManager = new MenuManager();
    
    //...
}
```


## Init the menu

```java

    //...

    public void init() {
        menuManager.setColumnsCount(2);

        menuManager.addMenuItem("Action 1", "action 1");
        menuManager.addMenuItem("Action 2", "action 2");
        menuManager.addMenuItem("Action 3", "action 3");
        menuManager.addMenuItem("Action 4", "action 4");
        menuManager.addMenuItem("Action 5", "action 5");
        menuManager.addMenuItem("Action 6", "action 6");
        menuManager.addMenuItem("Action 7", "action 7");
        menuManager.addMenuItem("Action 8", "action 8");
        menuManager.addMenuItem("Action 9", "action 9");
        menuManager.addMenuItem("Action 10", "action 10");
        menuManager.addMenuItem("Action 11", "action 11");
        menuManager.addMenuItem("Action 12", "action 12");
        menuManager.addMenuItem("Action 13", "action 13");
        menuManager.addMenuItem("Action 14", "action 14");
        menuManager.addMenuItem("Action 15", "action 15");
        menuManager.addMenuItem("Action 16", "action 16");
        menuManager.addMenuItem("Action 17", "action 17");
        menuManager.addMenuItem("Action 18", "action 18");
        menuManager.addMenuItem("Action 19", "action 19");
        menuManager.addMenuItem("Action 20", "action 20");

        menuManager.init();
    }    
    
    //...

```


## Render the menu

```java
public void onUpdateReceived(Update update) {

    // We check if the update has a message and the message has text
    if (update.hasMessage() && update.getMessage().hasText()) {

        if (update.getMessage().getText().equals("/menu")) {
            long chatId = update.getMessage().getChatId();
            
            // lets render the menu
            InlineKeyboardBuilder builder = menuManager.createMenuForPage(0, true);

            builder.setChatId(chatId).setText("Choose action:");
            SendMessage message = builder.build();
            
            try {
                // Send the message
                execute(message);
            } catch (TelegramApiException e) {
                e.printStackTrace();
            }
            
        } else {

        }

    }
}
```


## Don't forget for acting on page switching

```java
public void onUpdateReceived(Update update) {
    if (update.hasCallbackQuery()) {
        // Set variables
        long chatId = update.getCallbackQuery().getMessage().getChatId();
        String callData = update.getCallbackQuery().getData();
        long messageId = update.getCallbackQuery().getMessage().getMessageId();
    
        // here will be menu buttons callbacks
        
        if (callData.equals(MenuManager.CANCEL_ACTION)) {
            replaceMessageWithText(chatId, messageId, "Cancelled.");
    
        
        } else if (callData.startsWith(MenuManager.PREV_ACTION) || callData.startsWith(MenuManager.NEXT_ACTION)) {
        
            String pageNum = "0";
            if (callData.startsWith(MenuManager.PREV_ACTION)) {
                pageNum = callData.replace(MenuManager.PREV_ACTION+":", "");
            } else {
                pageNum = callData.replace(MenuManager.NEXT_ACTION+":", "");
            }
    
            InlineKeyboardBuilder builder = menuManager.createMenuForPage(Integer.parseInt(pageNum), true);
    
            builder.setChatId(chatId).setText("Choose action:");
            SendMessage message = builder.build();
    
            replaceMessage(chatId, messageId, message);
    
        }
    }
}
```