CODEWITHSUNDEEP
android
Josue Espinosa
Josue Espinosa

Reputation: 5089

Center text with dynamic TextView size

I have a TextView that is right aligned in a list item. Its background is a drawable, which is just an oval. This textview serves as a badge, and it needs to be a circle (equal width and height).

I achieve this by running the following code:

        textView.setText(badgeCount);
        textView.measure(0, 0);
        ViewGroup.LayoutParams params = textView.getLayoutParams();
        int size = Math.max(textView.getMeasuredWidth(), textView.getMeasuredHeight());
        params.width = size;
        params.height = size;
        badgesCountTextView.setLayoutParams(params);

This works except the text is left aligned. My xml looks like this:

<RelativeLayout>
...
<TextView
        android:id="@+id/badge_count_text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingLeft="8dp"
        android:paddingRight="8dp"
        android:paddingBottom="5dp"
        android:paddingTop="5dp"
        android:textSize="15sp"
        android:textColor="@color/white"
        android:layout_alignParentRight="true"
        android:background="@drawable/black_circle"
        tools:text="45"
        android:gravity="center"/>
</RelativeLayout>

How am I supposed to center the text within my badge view? I cannot set a fixed width or height, because that needs to be set dynamically depending on the text size. Can anyone point me in the right direction?

Upvotes: 0

Views: 1034

Answers (2)

Gabe Sechan
Gabe Sechan

Reputation: 93726

You've set the textview size to wrap content in width and height. That means the view is extremely small- just the size of the text. So it is centered. What you probably want is to either set its width to fill_parent, or to set its layout_leftAlign and rightAlign or toLeftOf and toRightOf such that it ends up with a larger size. But without knowing the rest of your layout and what you want it to look like we can't help you.

Upvotes: 0

Gabriella Angelova
Gabriella Angelova

Reputation: 2985

Change the layout_width and layout_height of the TextView to fill_parent and set the gravity of the TextView to center like this:

<RelativeLayout>
...
<TextView
    android:id="@+id/badge_count_text_view"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:paddingLeft="8dp"
    android:paddingRight="8dp"
    android:paddingBottom="5dp"
    android:paddingTop="5dp"
    android:textSize="15sp"
    android:textColor="@color/white"
    android:layout_alignParentRight="true"
    android:background="@drawable/black_circle"
    tools:text="45"
    android:gravity="center"/>
</RelativeLayout>

otherwise, if your TextView is as small as your text, you could not center it easily

Upvotes: 2

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