i have json and wnt to shw data in grid view

You're saying that you have JSON data, so first store it in an Array and then you can use setAdapeter() method of gridview to populate the data within it.

See the examples of JSON and Gridview :
http://www.androidbegin.com/tutorial/android-json-parse-images-and-texts-tutorial/[^]
http://javatyro.blogspot.in/2013/07/android-gridview-example.html[^]
http://www.learn-android-easily.com/2013/09/android-custom-gridview-example.html[^]
http://javatechig.com/android/android-gridview-example-building-image-gallery-in-android[^]

Tip : Go for Custom Listview. It is much easier than Gridview :)

-KR