Android string extraction

Question

I have an abstract class which contains method for setting header text. It looks like:

TextView header = (TextView) findViewById(R.id.hTitle);
header.setText(getString(this.getHeaderStringID()));

At this moment methods that override the abstract getHeaderStringID() return integers like 0x7f040001. 1 I wonder whether there's a way to utilize concatenation or somewhat similar to achieve this:

header.setText(getString(R.string.!getHeaderStringID!));

In desired case getHeaderStringID would return string like "sAboutHeader"

2 I'm new to Java - can I get rid of creating header object. If I don't do like that, eclipse validator says that the appropriate method isn't found and doesn't let me launch app.

Mark268 · Accepted Answer · 2012-04-06 11:07:55Z

1

If I understand you correctly, I think that you should use reflection:

try {
        Field idField = R.String.class.getDeclaredField(getHeaderStringID());
        int value = idField.getInt(idField);
    } catch (Exception e) {
        e.printStackTrace();
        return -1;
    }

the value variable could be given as an input to the getString() function.

edited Apr 6, 2012 at 11:07

answered Apr 6, 2012 at 10:58

Mark268

781 silver badge8 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

user1526659 Over a year ago

it works like that now, but it returns integer. What I want to do is to set to each subclass it's own string identifier in order to achieve header.setText(getString(R.string. here comes some magic that appends my string identifier to R.string. ));

Mark268 Over a year ago

After you'd manage to apend the unique string to R.string, it would return you an integer as well.

Collectives™ on Stack Overflow

Android string extraction

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related