How to manage android text size?

Question

Take this textview snippet for example:

<TextView
        android:id="@+id/tvTotal"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:maxLines="3"
        android:padding="10dp"
        android:scrollbars="vertical"
        android:textColor="#FFFFFF"
        android:textSize="30sp"
        android:textStyle="bold"
        app:autoSizeMaxTextSize="100sp"
        app:autoSizeMinTextSize="12sp"
        app:autoSizeStepGranularity="2sp"
        app:autoSizeTextType="uniform"
        app:fontFamily="sans-serif"
        app:lineHeight="60dp"
        android:lineSpacingMultiplier="2.5"
        android:lineSpacingExtra="6dp" />

I have android:textSize="30sp", app:autoSizeMaxTextSize="100sp", and app:autoSizeMinTextSize="12sp" all set. Whenever I changed the android:textSize, it seems to have no effect on my phone. Why is this? Also, does app:lineHeight have any effect when android:lineSpacingMultiplier and android:lineSpacingExtra are set? What do these properties even do?

Masum · Accepted Answer · 2019-03-04T03:35:39.363

0

If you remove app:autoSizeTextType="uniform", that time your code is work. Because when you use app:autoSizeTextType="uniform", that time android:textSize="30sp"does not work.

The difference is that android:lineSpacingExtra add extra spacing between lines of text of TextView and android:lineSpacingMultiplier work as scale factor for height of line space. in other words, each line height will be height*multiplier + extra

edited Mar 04 '19 at 03:35

answered Mar 02 '19 at 02:59

Masum

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I accepted it. Also, can you see my updated question above? – Shikhar Mainalee Mar 04 '19 at 00:41
@shikhar-mainalee Thanks..Now I updated the answer. May help this for you. – Masum Mar 04 '19 at 03:37

How to manage android text size?

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