shared preference in android

Hello Dear Friends,

I am going to share a sample code in Android for for shared preference in android. Actually Shared Preference stored data at applications label, I think its should help you..

package shared.preference.test;

import android.app.Activity;

import android.content.SharedPreferences;

import android.os.Bundle;

import android.preference.PreferenceManager;

import android.widget.TextView;

public class SharedPreference extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

// Get the app's shared preferences

SharedPreferences app_preferences =

PreferenceManager.getDefaultSharedPreferences(this);

// Get the value for the run counter

int counter = app_preferences.getInt("counter", 0);

// Update the TextView

TextView text = (TextView) findViewById(R.id.text);

text.setText("This app has been started " + counter + " times.");

// Increment the counter

SharedPreferences.Editor editor = app_preferences.edit();

editor.putInt("counter", ++counter);

editor.commit(); // Very important

}

}

It’s another example of shared preference where we can store data at application level for life long-

Step1- Create an activity and add below given code

 String USER_EMAIL = ""; //variable declaration is most important  

SharedPreferences myPrefs;

// use shared preference for store email id for next page

SharedPreferences.Editor prefsEditor = myPrefs.edit();

prefsEditor.putString(USER_EMAIL, editTextSendMail.getText().toString());

prefsEditor.commit();

Step2- Create second activity and add get values from shared-preference

String USER_EMAIL = ""; //variable declaration is most important  

SharedPreferences myPrefs;

String prefEmail;

// get email-id from previous activity via shared preference

SharedPreferences myPrefs = this.getSharedPreferences("myPrefs",MODE_WORLD_READABLE);

prefEmail = myPrefs.getString(USER_EMAIL, "");

Log.e("***user email**", prefEmail);