How to set border of GridView on Android

Question

How to set border of GridView.
Such as Divider and DividerHeight of ListView.
Or how to display the border.

Answer 1

Here are some examples of borders in a GridView.

You can see where I defined the Red and Blue borders in my XML.

This is my main.xml Layout:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/root"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/red" >

    <GridView
        android:id="@+id/gridview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_margin="10dp"
        android:background="@color/blue"
        android:columnWidth="90dp"
        android:gravity="center"
        android:horizontalSpacing="10dp"
        android:numColumns="auto_fit"
        android:stretchMode="columnWidth"
        android:verticalSpacing="10dp"
         />

</RelativeLayout>

The thickness of the Red border is controlled GridView's layout_margin attribute and the Blue borders are controlled by horizontalSpacing and verticalSpacing.

To make the black cell backgrounds I used this layout and saved it as list_item.xml:

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/text1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@android:color/black"
    android:gravity="center_vertical"
    android:minHeight="?android:attr/listPreferredItemHeight"
    android:paddingLeft="6dip"
    android:textAppearance="?android:attr/textAppearanceLarge" />

My Activity:

public class Example extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        String[] array = new String[] {"one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"};
        List<String> list = new ArrayList<String>(Arrays.asList(array));
        GridView grid = (GridView) findViewById(R.id.gridview);
        grid.setAdapter(new ArrayAdapter<String>(this, R.layout.list_item, list));
    }
}

Answer 2

Create grid_row_border.xml in the res/drawable folder.

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="@android:color/transparent" />
    <corners
        android:bottomRightRadius="5dp"
        android:bottomLeftRadius="5dp"
        android:topLeftRadius="5dp"
        android:topRightRadius="5dp" />
    <stroke
        android:color="@color/material_grey_600"
        android:width="1dp" />
</shape>

Now use this in you grid layout xml as below

android:background="@drawable/grid_row_border"

Provide padding [android:padding="5dp"] and margin [android:layout_margin="5dp"] to look better.

Answer 3

use below xml file as background in grid item xml file.

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="@android:color/transparent" />
    <corners
        android:bottomRightRadius="12dp"
        android:bottomLeftRadius="12dp"
        android:topLeftRadius="12dp"
        android:topRightRadius="12dp" />
    <stroke
        android:color="@android:color/white"
        android:width="1dp" />
</shape>