Why setting text from onMeasure does not affect TextView?

Question

There is a TextView of a certain size and whenever text set to it is too long I\'d like to re-set it to some preset value.

To accomplish this I am overr

Answer 1

This is what I do to reduce the text font in case the text content is large enough to goto the next line. The problem is pretty much the same the only difference in your case is that you want to replace it with some other default text.

ViewTreeObserver vto = ((TextView)findViewById(R.id.myTextView)).getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

            @Override
            public void onGlobalLayout() {

                if (null != ((TextView)findViewById(R.id.myTextView))) {
                    if (1 < ((TextView)findViewById(R.id.myTextView)).getLineCount()) {
                    ((TextView)findViewById(R.id.myTextView)).setTextSize(TypedValue.COMPLEX_UNIT_PX,
                              ((TextView)findViewById(R.id.myTextView)).getTextSize() - 2);
                    }
                }

           }
});

This would take care of your length dynamically. Now the text size or length cannot be fixed as based on different form factors it would change. For instance a 20 character text in 3.2 inch screen would be decidedly large however it would be too small for 4.1 inch screen. So I would suggest you to use line count as the reference and if the text wraps then you can either reduce the font like I do or replace it by something else.