Android share preferences
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This document discusses how to use Shared Preferences in Android to save form data when an application is closed prematurely. Shared Preferences provides a simple way to store key-value pairs of primitive data that can be retrieved even if an app is closed. The document demonstrates creating an app with an EditText field, using Shared Preferences to save the text on app close, and retrieve the saved text to populate the field again when the app reopens. It provides code examples for getting Shared Preferences, saving data on close, and retrieving the saved data on app open.
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Android share preferences
- 1. Android Share Preferences By: Ajay Panchal
- 2. Introduction ▪ This is a sample android application development tutorial that show a how to save a android from data when ever immediately close the application in between registration. It is a so much treble full to refill all form data again. ▪ So this tutorial show how you can put functionality in your android application, your application do not face this kind of problem while register in your android application. ▪ It is an easy task to shave a form data while application is immediately close. We can call this functionality “Shared Preference”.
- 3. Shared Preference ▪ The shared preference is a class that provide a storage area to store a small amount of temporary data you can save. ▪ New Application with One Edit Text Control to take a user data into the form. ▪ And we Are going to preserve value of this edit text control. Here we are user a predefined Class Called Shared Preference That Provided in to the android library.
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- 6. Code For Application close ▪ This code Preserve the current data that fill in the control. ▪ The class shared preference class contain function for storing a intellectual data. ▪ SharedPreference.Editor – android.content.SharedPreferences.Editor; – putString() is a method that provide a functionality to store data into the storage area, in this case SharedPreferences.
- 7. code ▪ @Override ▪ protected void onStop() { ▪ // TODO Auto-generated method stub ▪ super.onStop(); ▪ SharedPreferences settings = getSharedPreferences("MYPREFS", 0); ▪ SharedPreferences.Editor editor=settings.edit(); ▪ editor.putString("tvalue", et.getText().toString()); ▪ editor.commit(); ▪ }
- 8. Thank You!