Qfyilyi

I have simple TextView. I want set simple colored background with round corners.

I try two ways.

public static Drawable createRoundDrawable(int color, float radius) {

        GradientDrawable drawable = new GradientDrawable();

        drawable.setShape(GradientDrawable.RECTANGLE);

        drawable.setColor(color);

        drawable.setCornerRadius(radius);

        return drawable;

    }

And

public static Drawable createRoundDrawable(int color, float radius) {

        PaintDrawable drawable = new PaintDrawable(color);

        drawable.setCornerRadius(radius);

        return drawable;

    }

I create drawable with createRoundDrawable method and set background to textView by

textView.setBackground(background);

So, background applied to textView, but corners have no any radius. Why? And how to fix it?

Better use a drawable XML file with rounded corner like this

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android="http://schemas.android.com/apk/res/android"

    android:padding="10dp"

    android:shape="rectangle">

    <!-- you can use any color you want-->

    <solid android:color="@color/colorPrimary" />

    <corners android:radius="20dp" />

</shape>

Then set the file as drawable

Remove

 drawable.setShape(GradientDrawable.RECTANGLE);

it should be

   public static Drawable createRoundDrawable(int color, float radius) {

    GradientDrawable drawable = new GradientDrawable();

    drawable.setColor(color);

    drawable.setCornerRadius(radius);

    return drawable;

   }

you can try this:
create a new Drawable resource file in drawable folder give it a name say custom_background.xml with the following content:

<?xml version="1.0" encoding="utf-8"?>

<shape

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:shape="rectangle">

    <corners android:radius="15dp" />

    <solid

        android:color="#FFFFFF" />

</shape>

give radius and color of your choice and in layout file of textview add background tag
android:background="@drawable/custom_background"

Try setting corner to individual corner with setCornerRadii()

public static Drawable createRoundDrawable(int color, float radius) {

        GradientDrawable drawable = new GradientDrawable();

        drawable.setShape(GradientDrawable.RECTANGLE);

        drawable.setColor(color);

        drawable.setCornerRadii(new float { radius, radius, radius, radius, radius, radius, radius, radius});

        return drawable;

    }