Android External Storage Tutorial With Example – How to Store File in External Storage

By | May 28, 2019
External Storage in Android Tutorial Example

What is External Storage ?

External Storage such as a SD Card to store data.it is no security enforced files you save to the external storage. External Storage to save,read and write data from externally storage such as a SD Card.

External Storage are FileInputStream and FileOutputStream classes are used to read and write data into the file.

External Storage are two type of storage.

Primary External Storage: Primary Storage is a built in shared storage.it is accessible by user by plugging in a USB cable and mounting it as a drive on a host computer.

Secondary External Storage : Secondary Storage is a Removable storage Like SD Card.

All the Application read and write file from placed on external storage.when user remove external storage to first check external storage are available or not.user to remove external storage to does not read and write file in external storage.when external storage is available to read and write files.

External Storage Required Permission in AndroidManifest.xml File copy this code and paste AndroidManifest.xml file.

Above the permission is granted on your application to access external storage is read and write functionality otherwise it does not read and write external storage on your application.

How to Store File from External Storage ?

Create activity_main.xml file Following this code.

Create MainActivity.java File Following below code.

Above this code i have create one input edittext and two button is read and write and then one textview to display file data.when you can type your name in the edittext and then click write button to check External Storage is available or not when your external storage is available then create file root and directory.first is check directory and folder are available in external storage or not it does not available to create directory and store file and display toast.when you can press read button to display textview file and typed your message show.