I have created a class of type BaseAdapter that is populated with buttons –

Question

0

Asked: May 28, 20262026-05-28T17:55:05+00:00 2026-05-28T17:55:05+00:00

I have created a class of type BaseAdapter that is populated with buttons –

0

I have created a class of type BaseAdapter that is populated with buttons – when you click on a button I want to load a new intent. This has proven difficult on two levels:

You cannot associate the event with the button (one that creates a new intent) inside the Adapter. This is why I send the Buttons as an array to my Adapter (this solution works, but it is messy)
Even though my buttons are created inside the same Activity – they cannot create a new intent from that Activity. The exeption is so great that I have not even gotten a try…catch statement to work.

I have tried reflection, creating the buttons inside the activity and passing them through, passing the context (to call context.startIntent(…))

My question: can someone show me how to create a ButtonAdapter where each button creates a new Intent – even of the same type as the original Activity?

UPDATE: Here is the code because I am getting answers from people who think I am struggling with onClickListeners:

public class ButtonAdapter extends BaseAdapter
{
    private Context _context;
    private Button[] _button;

    public ButtonAdapter(Context c, Button[] buttons)
    {
        _context = c;  
        _button = buttons;
    }

    // Total number of things contained within the adapter  
    public int getCount()
    {  
        return _button.length;  
    }  

    // Require for structure, not really used in my code.  
    public Object getItem(int position)
    {  
        return _button[position];  
    }  

    // Require for structure, not really used in my code. Can  
    // be used to get the id of an item in the adapter for  
    // manual control.  
    public long getItemId(int position)
    {  
        return position;  
    }  

    public View getView(int position, View convertView, ViewGroup parent) 
    {          
        _button[position].setId(position);  
        return _button[position];  
    }
}

—————
The Activity:

public class MainActivity extends Activity
{
    private GridView _gv;
    private TextView _heading;       
    private ButtonAdapter _adapter;

    public void LoadActivity(String heading)
    {
        try
        {
            Itent intent = new Intent(getApplicationContext(), MainActivity.class);
            intent.putExtra("Level", "NextPage");
            intent.putExtra("Heading", heading);
            startActivity(intent);
        }
        catch (Exception ex)
        {
            Toast.makeText(getApplicationContext(), String.format("Error LoadActivity: %s", ex.getMessage()), Toast.LENGTH_SHORT).show();
        }
    }    

    private void createButtonsAdapter(Button _button[])
    {
        _buttonadapter = new ButtonAdapter(getApplicationContext(), _button);
        _gv.setAdapter(_adapter);  
    }         

    private void setupButtons()
    {
        Button[] _buttons = new Button[2];
        String names[] = new String[]{"Button1","Button2"};

        for (int i = 0; i &lt; 2; i++)
        {
            _buttons[i] = new Button(this);
            _buttons[i].setText(names[i]);
            _buttons[i].setTag(names[i]);

           _buttons[i].setOnClickListener(new View.OnClickListener()
           {
               public void onClick(View arg0)
               {
                   try
                   {
                       LoadActivity(((Button)arg0).getTag().toString());
                   }
                   catch(Exception ex)
                   {
                       Toast.makeText(getApplicationContext(), String.format("Error button.onClick: %s", ex.getMessage()), Toast.LENGTH_SHORT).show();
                   }
               }
           });
        }
        createButtonsAdapter(_buttons);     
    }

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        _gv = (GridView)findViewById(R.id.gridview);
        _heading = (TextView)findViewById(R.id.tv_heading);                      

        Bundle params = getIntent().getExtras();                

        if (params == null)
        {
            setupButtons();    
        }  
        else if (params.containsKey("Level"))
        {
            _heading.setText(params.getString("Heading"));
            if (params.getString("Level").equals("NextPage"))
            {
                //code not here yet
            }
            else if (params.getString("Level").equals("Chapters"))
            {
                //future code
            }
        }
    }
}

Excuse the bold and caps but I have had enough silly answers to warrent this:
I HAVE TRIED PUTTING THE ONCLICKLISTENER INSIDE THE GRIDVIEW AND IT DOES NOT WORK EITHER
You cannout load an activity from a class outside that activity, even if you pass the context as a parameter. That is why I have resorted to this method, which completely bombs android, even though I have try catch statements.

Please try give me a solution in the form of a correction to my code, other code, or a tutorial that achieves what I want here. I know how to do a button adapter properly, it is the act of loading an Intent that has forced me to implement it this way.