How to set integer tag to a widget in xml layout file?

Question

I have simple layout, but I can only set string tag. How to set integer tag?

Answer 1

I used the following to setup the tag in xml and handle it later in code:

<?xml version="1.0" encoding="UTF-8"?>
<resources>
<string name="item_tag">1</string>
</resources>

<!-- TextView with Tag -->
<TextView
android:id="@+id/item_with_tag"
android:tag="@string/item_tag"/>

// retrieve the tag
int itemTag = Integer.valueOf((String) textView.getTag()); // itemTag == 1

Answer 2

In xml you can only set String. But in code you can use View.setTag(int value); because it takes Object. To read a value you need to cast it to Integer int value = (Integer)view.getTag();

Answer 3

From the author's edit I attempted to use @integer/int2 to set the tag as an integer, but it still seems that getTag() is returning the tag as a String (at least in Jellybean). Integer.parseInt(String) can convert a String to an Integer and @integer/int2 can validate that your tag is a proper Integer. So if you want to put an Integer in a tag through XML that is probably the best route. Downside, since it uses parseInt it likely takes a little more time than having it stored as a int the whole time.

Answer 4

Supply a tag for this view containing a String, to be retrieved later with View.getTag() or searched for with View.findViewWithTag().

Must be a string value, using '\\;' to escape characters such as '\\n' or '\\uxxxx' for a unicode character.

For more information go to android:tag