How to identify items in a logical way?

Question

I am new to Android development and I am trying to handle clicks on a grid of items. What is the best way to do that? So far I have something like this to set the onclicklistener:

 TableLayout layout = (TableLayout) findViewById(R.id.tableLayout1);
    for (int i = 0; i < layout.getChildCount(); i++) {
        View v = layout.getChildAt(i);
        if (v instanceof TableRow) {
            for (int j = 0; j < ((TableRow)v).getChildCount(); j++) {
                View v2 =  ((TableRow)v).getChildAt(j);
                v2.setOnClickListener(this);
            }
        }
    }

Now I want to handle the clicks on the items contained in the table. As there are many items I want to avoid writing a long "switch". The items have logical IDs containing the number of the row and the column. Is there a way to get the actual ID of the item that has been clicked (the ID in the XML) and then parse it? If not, what would be the solution.

Thanks

@MarekSebera Thanks, I think that will do it :-) http://stackoverflow.com/questions/5291726/what-is-the-main-purpose-of-settag-gettag-methods-of-view — André, May 16 '13 at 22:44

score 0 · Accepted Answer · answered May 16 '13 at 23:32

0

You have a few options. You can set the onClickListener inline:

v2.setOnClickListener(new OnClickListener() {
    public void onClick (View viewClicked) {
        Log.d("View row: " + i + ", column: " + j);
        // or something else
    }
});

Or you can use the View.setTag(), which will allow you to store key-value pairs to the view, similar to a map.

answered May 16 '13 at 23:32

John Leehey

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I used the setTag method. Thanks. – André May 16 '13 at 23:46

How to identify items in a logical way?

1 Answers1