Ellipsize text in TextView without specifying maxLines

Question

I have a TextView whose height would vary based on the other components in the screen. I have a long text to be set in this TextView and hence I would like to ellipsize it. Simply specifying android:ellipsize="end" is not working. Only on specifying maxLines along with it, the ellipsizing works. But I cannot specify a value for maxLines since the height of TextView is dynamic. How do I get the text ellipsized without specifying maxLines for the TextView?

Simply specifying android:ellipsize="end" is not working. Only on specifying maxLines along with it, the ellipsizing works. — DevAndroid, Oct 09 '17 at 08:50
@AnkitAman I can't do that since I wouldn't know where exactly I need to append ... — DevAndroid, Oct 09 '17 at 08:57
@sushantgosavi Here it is https://www.dropbox.com/s/v4b19h8vonnjonu/ellipsize_not_working.xml?dl=0 — DevAndroid, Oct 09 '17 at 09:15

score 18 · Accepted Answer · edited Feb 28 '18 at 09:29

18

I found the solution to the problem by adding global layout listener. Following is the code snippet

tvDesc.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            tvDesc.getViewTreeObserver().removeOnGlobalLayoutListener(this);
            int noOfLinesVisible = tvDesc.getHeight() / tvDesc.getLineHeight();

            tvDesc.setText(R.string.desc);

            tvDesc.setMaxLines(noOfLinesVisible);
            tvDesc.setEllipsize(TextUtils.TruncateAt.END);

        }
    });

edited Feb 28 '18 at 09:29

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answered Oct 24 '17 at 06:58

DevAndroid

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Solution works, I just wanted to add that you have to remove `android:ellipsize="end"` in the layout xml to make it work. – Benjamin Bisinger Jul 18 '18 at 11:51

Ellipsize text in TextView without specifying maxLines

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