How to Apply Corner Radius to Linearlayout

How to Apply Corner Radius to LinearLayout

You can create an XML file in the drawable folder. Call it, for example, shape.xml

In shape.xml:

<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"   >
    
    <solid
        android:color="#888888" >
    </solid>
    
    <stroke
        android:width="2dp"
        android:color="#C4CDE0" >
    </stroke>
     
    <padding
        android:left="5dp"
        android:top="5dp"
        android:right="5dp"
        android:bottom="5dp"    >
    </padding>
     
    <corners
        android:radius="11dp"   >
    </corners>
     
</shape>

The <corner> tag is for your specific question.

Make changes as required.

And in your whatever_layout_name.xml:

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:layout_margin="5dp"
    android:background="@drawable/shape"    >
</LinearLayout>

This is what I usually do in my apps.

How to make layout with rounded corners..?

1: Define layout_bg.xml in drawables:

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF"/>
    <stroke android:width="3dp" android:color="#B1BCBE" />
    <corners android:radius="10dp"/>
    <padding android:left="0dp" android:top="0dp" android:right="0dp" android:bottom="0dp" />
</shape>

2: Add layout_bg.xml as background to your layout

android:background="@drawable/layout_bg"

Rounded corners on linearlayout

I want to make the whole view (linearlayout) with rounded corners.

Since the LinearLayout covers all the CardView, then the whole view, is the CardView.
So instead of setting transparent background to the CardView, set it to the LinearLayout, set a background color to the CardView and you will see rounded corners.

If you set transparent color to both the CardView and the LinearLayout how do you expect to see rounded corners since there are no corners?

LinearLayout with rounded corners and background color

From the code samples you provide us, it doesn't seem necessary to me to have two LinearLayout. Only the layout with android:background="@drawable/custom_border" is required.

To achieve the expected result, just add the property <solid android:color="@color/whitegrey" /> to your custom_border.xml :

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
    <corners android:radius="20dp"/>
    <padding android:left="8dp" android:right="8dp" android:top="8dp" android:bottom="8dp"/>
    <stroke android:width="2dp" android:color="#444444" />
    <solid android:color="@color/whitegrey" />
</shape>

I wish I was able to help you!

How to create corner radius in top left and bottom right in android?

With the Material Components Library you can define custom CornerTreatment.

For example you can use a CardView and apply to it a ShapeAppearanceModel.

<LinearLayout
    android:background="@color/colorPrimaryLight"
    android:clipChildren="false"
    android:clipToPadding="false"
    ..>

   <com.google.android.material.card.MaterialCardView
       android:id="@+id/card"
       app:cardCornerRadius="32dp"
       app:cardBackgroundColor="@color/colorPrimaryDark"
       ../>

</LinearLayout>

Then:

MaterialCardView cardView = findViewById(R.id.card);
        
cardView.setShapeAppearanceModel(cardView.getShapeAppearanceModel().toBuilder()
                .setTopLeftCorner(new CrazyCornerTreatment())
                .setBottomLeftCorner(CornerFamily.ROUNDED,0f)
                .setBottomRightCorner(CornerFamily.ROUNDED,0f)
                .build());

The top left corner can be defined with:

class CrazyCornerTreatment : CornerTreatment() {

    override fun getCornerPath(
            shapePath: ShapePath,
            angle: Float,
            interpolation: Float,
            radius: Float
    ) {

        val interpolatedRadius = radius * interpolation
        shapePath.reset(0f, -radius * interpolation, 270f,270 -angle)
        shapePath.addArc(
                0f,
                -2*interpolatedRadius,
                2*interpolatedRadius,
                0f,
                180f,
                 - angle)

    }
}

Adding a color background and border radius to a Layout

You don't need the separate fill item. In fact, it's invalid. You just have to add a solid block to the shape. The subsequent stroke draws on top of the solid:

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

    <corners android:radius="5dp" />
    <solid android:color="@android:color/white" />
    <stroke
        android:width="1dip"
        android:color="@color/bggrey" />
</shape>

You also don't need the layer-list if you only have one shape.

Rounded linear layout leaving extra space on corners

With below code you have rounded background with least space on corner

 <?xml version="1.0" encoding="utf-8"?>
   <shape xmlns:android="http://schemas.android.com/apk/res/android"
      android:padding="10dp"
      android:shape="rectangle">
    <solid android:color="#FFFFFF" />
    <corners android:radius="5dp" />
    <stroke
      android:width="2dip"
      android:color="#275D69" />
   </shape>

this may include space on corner but it's too low.

just reduce radius value.

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