Question

I can’t manage to get my textSwitcher to be able to support superscript text. No matter what I try it shows up as regular size text.

Here is what I’ve tried:

        Spanned span = Html.fromHtml("<sup>TM</sup>");
        String subscript = span.toString();
        mSwitcher.setText(getText(R.string.desc_about1) + subscript);

Then I tried setting it in the XML string file:

<string name="desc_about1">Android<sup><small>TM</small></sup></string>

Neither one of these will work. Is there another way?

My textSwitcher code for reference:

    <TextSwitcher android:id="@+id/switcher"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />


@Override
public View makeView() {
    TextView t = new TextView(this);
    t.setGravity(Gravity.TOP | Gravity.LEFT);
    t.setTextSize(18);
    return t;
}

Thanks all!

Answer 1

Your first example looks incorrect for me, try this instead:

    Spanned span = Html.fromHtml(getText(R.string.desc_about1) + "<sup>TM</sup>");
    mSwitcher.setText(span);

Full example that works for me:

package com.stackoverflow;

import android.app.Activity;
import android.os.Bundle;
import android.text.Html;
import android.view.Gravity;
import android.view.View;
import android.widget.TextSwitcher;
import android.widget.TextView;
import android.widget.ViewSwitcher.ViewFactory;

public class Test extends Activity implements ViewFactory {


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TextSwitcher ts = (TextSwitcher) findViewById(R.id.switcher);
        ts.setFactory(this);
        ts.setText(Html.fromHtml("Test<sup>TM</sup>"));
    }

    @Override
    public View makeView() {
        TextView t = new TextView(this);
        t.setGravity(Gravity.TOP | Gravity.LEFT);
        t.setTextSize(18);
        return t;
    }

}

And if you want to use strings.xml to store you texts:

 mSwitcher.setText(Html.fromHtml(getText(R.string.desc_about1) + "<sup>TM</sup>"));

Just make sure that latest thing you pass into setText is fromHtml output.