Rounded corner for textview in android

1. Create rounded_corner.xml in the drawable folder and add the following content,

   <?xml version="1.0" encoding="utf-8"?>
   <shape xmlns:android="http://schemas.android.com/apk/res/android" >         
      <stroke
          android:width="1dp"
          android:color="@color/common_border_color" />
   
      <solid android:color="#ffffff" />
   
      <padding
           android:left="1dp"
           android:right="1dp"
           android:bottom="1dp"
           android:top="1dp" />
   
      <corners android:radius="5dp" />
   </shape>
   

2. Set this drawable in the TextView background property like so:

   android:background="@drawable/rounded_corner"
   

I hope this is useful for you.

Beside radius, there are some property to round corner like topRightRadius, topLeftRadius, bottomRightRadius, bottomLeftRadius

Example TextView with red border with corner and gray background

bg_rounded.xml (in the drawables folder)

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <stroke
        android:width="10dp"
        android:color="#f00" />

    <solid android:color="#aaa" />

    <corners
        android:radius="5dp"
        android:topRightRadius="100dp" />
</shape>

TextView

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/bg_rounded"
    android:text="Text"
    android:padding="20dp"
    android:layout_margin="10dp"
    />

Result

With the Material Components Library you can use the MaterialShapeDrawable.

With a TextView:

    <TextView
        android:id="@+id/textview"
        ../>

You can programmatically apply a MaterialShapeDrawable:

float radius = getResources().getDimension(R.dimen.corner_radius);

TextView textView = findViewById(R.id.textview);
ShapeAppearanceModel shapeAppearanceModel = new ShapeAppearanceModel()
        .toBuilder()
        .setAllCorners(CornerFamily.ROUNDED,radius)
        .build();

MaterialShapeDrawable shapeDrawable = new MaterialShapeDrawable(shapeAppearanceModel);
ViewCompat.setBackground(textView,shapeDrawable);

If you want to change the background color and the border just apply:

shapeDrawable.setFillColor(ContextCompat.getColorStateList(this,R.color.....));
shapeDrawable.setStroke(2.0f, ContextCompat.getColor(this,R.color....));