Hidden Field/Tag in TextView?

I want to pass a value that will be generated at runtime,through a TextView. the text property is used for some other data and the data that I want to pass will not be displayed. So, it's a like a hidden tag. Is it possible to do with TextView? If so, which property of the Text开发者_JS百科View.

For simplicity's sake imagine I pull the ID and TEXT from the data table. Now the TEXT is displayed on the TextView but when I want to pass the reference to that particular row of the table to some other function I want to pass the ID as an argument/handle. So, the ID will be hidden and associated with the TextView. How can I do it? If not possible can you suggest any alternative to accomplish this? BTW, the TextView is embedded within a ListView.

Adapter code :

cursor = db.rawQuery("SELECT * FROM EmpTable", null);

adapter = new SimpleCursorAdapter(
                this, 
                R.layout.item_row, 
                cursor, 
                new String[] {"Emp_Name"}, 
                new int[] {R.id.txtEmployee});

Try setTag(int, Object) and getTag(int). There are even versions that don't take a key, if you just want to store one value. From the docs:

Sets the tag associated with this view. A tag can be used to mark a view in its hierarchy and does not have to be unique within the hierarchy. Tags can also be used to store data within a view without resorting to another data structure.

So you can do:

textView.setTag(myValue);

and get it back later with:

myValue = textView.getTag();

Since the interface uses Object, you will need to add casts. For example, if your value is an int:

textView.setTag(Integer.valueOf(myInt));

and:

myInt = (Integer) textView.getTag();

Edit - to subclass and add the tag, use:

adapter = new SimpleCursorAdapter(this, R.layout.item_row,
        cursor, new String[] {"Emp_Name"}, new int[] R.id.txtEmployee}) {
    @Override
    public View getView (int position, View convertView, ViewGroup parent) {
        View view = super.getView(position, convertView, parent);
        view.setTag(someValue);
        return view;
    }
};

You can use setTag() and getTag().

One way to do this would be to have your ListAdapter inflate a layout instead of a TextView for each item of the list. Then you can have other (invisible) fields hidden in the layout.

The xml might look like this:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <TextView android:id="@+id/visible_text"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Visible text"/>
    <TextView android:id="@+id/hidden_value"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="hidden value"
    android:visibility="gone"/>
</LinearLayout>