SpannableString doesn't work - displays unchanged data

Question

does anyone have an idea why the following code does not change the data? The "expired" string is added, but neither the font color nor the size is changed.

        Spannable expired = new SpannableString(" expired");
        expired.setSpan(new ForegroundColorSpan(Color.RED), 0, expired.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        expired.setSpan(new RelativeSizeSpan(.5f), 0, expired.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        nameTextView.setText(goalsName + expired);

xml:

        <TextView
        android:id="@+id/goal_list_name_text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="22sp"
        android:layout_marginBottom="8sp"
        android:focusable="true"
        tools:text="Cel 1" />

You have to take full string then change(manipulate) the string on basis of index and set the full spannable to string instead of concatenating two different one. — Surender Kumar, Dec 06 '18 at 11:47
By concatenating your Spannable to a String you are converting it to another String, removing the styling information. — RobCo, Dec 07 '18 at 10:39

Kamil · Answer 1 · 2018-12-07T10:45:11.170

1

The correct solution:

String s = name + " expired";
SpannableString  expired = new SpannableString(s);
expired.setSpan(new ForegroundColorSpan(Color.RED), name.length(), expired.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
expired.setSpan(new RelativeSizeSpan(.7f), name.length(), expired.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
nameTextView.setText(expired);

edited Dec 07 '18 at 10:45

answered Dec 07 '18 at 10:36

Kamil

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karan · Answer 2 · 2018-12-07T10:38:17.897

0

You have used Spannable, You should be using SpannableString instead. Change your code as below.

String s = "oldString"+" expired";
SpannableString expired=  new SpannableString(s);
expired.setSpan(new ForegroundColorSpan(Color.RED), 10, s.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
expired.setSpan(new RelativeSizeSpan(.5f), 10, s.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
nameTextView.setText(expired);

edited Dec 07 '18 at 10:38

answered Dec 06 '18 at 11:56

karan

8,637
3
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Unfortunately, it does not work. I wonder if I have a set value somewhere that covers the changes made here, but I do not see anything. – Kamil Dec 06 '18 at 12:39
try clean and build your project, I have checked and this works. – karan Dec 06 '18 at 12:40
I can share my screen if you want – Kamil Dec 06 '18 at 16:17
The wrong value was returned in your code. We should set setText (expired). Then it works – Kamil Dec 07 '18 at 10:34
there was an edit earlier by someone, didn't notice it was changed. I have changed it. – karan Dec 07 '18 at 10:37

SpannableString doesn't work - displays unchanged data

2 Answers2