ionic offline storage

There are many ways to offline storage in hybrid/ionic app:

1. Cookies
2. Offline Storage
3. Sqlite Database


1. Cookies : Consider this method if size of data is very less. Mostly cookies are used only for login purposes.


2. Offline Storage: This method used key/value pair to store data.

Following code will store data in memory of user's webview/browser:

if(window.localStorage !='undefined'){
        localStorage.setItem("user-name", "Jason sta");
}

To retrieve above saved data we have to right below code:

var userName = localStorage.getItem("user-name");

3. Sqlite Database: 

There are two ways we can create sqlite database in mobile browser/webview.

A. Using Javascript/html5 code

B. Using Java code:

After creating database we have to copy the database into source code of mobile app before creating apk/ipa file.