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Store data and display it in another activity using sharedpreferences (Newer Version)

*I'm new in learning android
I'm searching for any website that show on how to accept user detail for example name and age, and display it in another activity using sharedpreferences in newer version of code? Do you have any? The another activity will have a Back button pointing to the first activity. All I found was in older version and not matched in my Android Studio so, I've cancelled the program. Anyone?

In the first activity, you can save the user name and age like this:
private void saveUserInformation(String userName, int age) {
//In this activity save the name in the shared preference
SharedPreferences sharedPreferences = getSharedPreferences("myAppPrefs", Context.MODE_PRIVATE);
sharedPreferences.edit().putString("user_name", userName).putInt("user_age", age).apply();
}
In the second activity, to get the user information, do this:
private void getUserInformation() {
//In the second activity or any other activity, you can get the userName and age like thi
SharedPreferences sharedPreferences = getSharedPreferences("myAppPrefs", Context.MODE_PRIVATE);
String userName = sharedPreferences.getString("user_name", null);
int userAge = sharedPreferences.getInt("user_age", 0);
}
From your question and comment in other answers, i guess you need more explanation on how a shared preference works. When you save data in a sharedpreference, it gets saved in a file on the user device. After saving you can access that data from any activity as long as the activity has access. All you just have to do is put it in a shared preference using a unique key and get it where you need it using that same unique key. Hope it helps. If i my answer helps, don't forget to upvote. Thanks.

this is how you create a sharedpref
SharedPreferences sp=getSharedPreferences("MYPREFNAME", Context.MODE_PRIVATE);
SharedPreferences.Editor editor=sp.edit;
this is how you put data in it
editor.putString(key,string);
this.is how you retrieve that string back
sp.getString(key,DefaultString);

//in your first activity use
SharedPreferences sharedPreferences=getSharedPreferences("your_packagename", Context.MODE_PRIVATE);
sharedPreferences.edit().putString("name","name_value").apply();
sharedPreferences.edit().putInt("age",age_value).apply();
//and now in your second activity to retrieve data
SharedPreferences sharedPreferences=getSharedPreferences("your_packagename", Context.MODE_PRIVATE);
String name=sharedPreferences.getString("name","");
int age =sharedPreferences.getInt("age",0);

How can I use sharedPreferences Date Diaplay sent next Activity

I need to send data Date Display to next Activity and keep that data
private void updateDisplay()
{
SharedPreferences app_preferences = PreferenceManager.getDefaultSharedPreferences(ShowdatanameActivity.this);
SharedPreferences.Editor editor = app_preferences.edit();
mDateDisplay.setText(new StringBuilder().append(mMonth + 1).append("-").append(mDay).append("-").append(mYear).append(" "));
editor.putString("key1", mDateDisplay);
editor.commit();
Intent myIntent = new Intent(ShowdatanameActivity.this,Showdata_result_resume.class);
startActivity(myIntent);
}

Well that's true you can acces to Data/Calendar object from every place of your application. But if you insist:
You've put your string to SharedPreferences under "key1" so in other activity you have to call:
SharedPreferences app_preferences = PreferenceManager.getDefaultSharedPreferences("KEY_FOR_YOUR_DATA",ShowdatanameActivity.this);
String data = app_preferences.getString("key1","");
So when you call SharedPreferences you also need key for them. It's some kind of "database version", you can write anything there (i use for example PREFS-KEYv1, and when I need new one I'm incrementing to v2). And don't use same key everywhere it's bad practice.
The other method you could use to send your String to other activity is via intent.
intent.putExtra("key1",yourStringVariable);
and Showdata_result_resume in onCreate after setContent you can get it by:
String data = intent.getExtras().getString("key1");

Using code like this to make preferences code portable between various apps and classes.
from a fragment I get the sharedpref like this. Notice how I have the preferences named in a resource and I use getActivity to get to the preferences.
sharedPref = getActivity().getSharedPreferences(
getString(R.string.preferences), Context.MODE_PRIVATE);
From the main activity I get the sharedpref like this. Notice how I have the preferences named in a resource.
sharedPref = getSharedPreferences(getString(R.string.preferences),
Context.MODE_PRIVATE);
the resource which is shared by all classes in the app.
<string name="preferences">com.gosylvester.hilbilyfashliegt.prefrences</string>
<string name="about_firstrun">com.gosylvester.hilbilyfashliegt.firstrunabout</string>
now to get the data from any class I referer to it with an R string resource.
_Checked = sharedPref.getBoolean(getString(R.string.about_firstrun),
false);
Good Luck

how to store a text in one activity and retrieve it in another activity.?

I have created an app for alarm service..such that a person can set a alarm to a specific time and the alarm will pop up as a notification..Now i want to create that alarm service app to a task reminder app such a way that at the time of creating or setting the task , user input the message in the edit text and save it and then when the alarm pops up , and if the user taps the notification , a new activity comes up and the message that he typed earlier is printed in front of him..(i mean the message is show as a text view to him) So Please tell me how could i do that using shared preferences..
In simple way just tell how could a load the stored string from the activity where the string was created and save with the help of a button and to load that same string and pass it in a text view to some other activity..

You can use shared-preferences to store data in one activity. and these data will be available in any activity with in same application.
http://developer.android.com/reference/android/content/SharedPreferences.html
example is available at http://developer.android.com/guide/topics/data/data-storage.html
Good Luck.......

I would like to suggest you to do all your preference tasks in your Application Utils.clas
// Declaration
public static String KEY = "SESSION";
// Method declaration :
public static void saveUserName(String userid, Context context) {
Editor editor = context
.getSharedPreferences(KEY, Activity.MODE_PRIVATE).edit();
editor.putString("username", userid);
editor.commit();
}
public static String getUserName(Context context) {
SharedPreferences savedSession = context.getSharedPreferences(KEY,
Activity.MODE_PRIVATE);
return savedSession.getString("username", "");
}
// You can save the values in preference by calling the below :
Utils.saveUserName("12345",YourActivity.this);
// Finally you can retrieve the stored value by calling this code snippet :
String myUserName = Utils.getUserName(YourActivity.this);
Hope it helps

You can use SharedPreferences.
Using setSetting, you can set the text at caller class. Similarly, you can get the text which was set in the caller class using getSetting in the called class.
Method to set the Preference-
public void setSetting(String key, String value) {
if(getActivity() != null)
{
SharedPreferences settings = getActivity().getSharedPreferences("UserPref", 0);
SharedPreferences.Editor editor = settings.edit();
editor.putString(key, value);
// Commit the edits!
editor.commit();
}
}
Method to get the preference-
public String getSetting(String key, String def) {
try
{
SharedPreferences settings = getActivity().getSharedPreferences("UserPref", 0);
return settings.getString(key, def);
}
catch(Exception e)
{
e.printStackTrace();
}
return "";
}
Here,
public abstract SharedPreferences getSharedPreferences (String name, int mode)
Retrieve and hold the contents of the preferences file 'name', returning a SharedPreferences through which you can retrieve and modify its values. Only one instance of the SharedPreferences object is returned to any callers for the same name, meaning they will see each other's edits as soon as they are made.
More on Android developer reference.

Shared Preferences in Android?

I'm a novice Android developer who are currently trying hard to build a Login Screen.
I need to find the easiest way to store the username and password in 1 class and retrieve it from another class. See Google has provided several ways: http://developer.android.com/guide/topics/data/data-storage.html
which one is the most efficient and easy to code?
thanks!

For Login screen tasks like storing username and password you can use Shared Preferences. Here I had made custom methods for using shared preferences. Call savePreferences() method and put your Key and Value(as savePreferences() is based on XML), similarly call Load with your Key. And lastly don't forgot to call deletePreferences() on LOGOUT.
/**
* Method used to get Shared Preferences */
public SharedPreferences getPreferences()
{
return getSharedPreferences(<PREFRENCE_FILE_NAME>, MODE_PRIVATE);
}
/**
* Method used to save Preferences */
public void savePreferences(String key, String value)
{
SharedPreferences sharedPreferences = getPreferences();
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(key, value);
editor.commit();
}
/**
* Method used to load Preferences */
public String loadPreferences(String key)
{
try {
SharedPreferences sharedPreferences = getPreferences();
String strSavedMemo = sharedPreferences.getString(key, "");
return strSavedMemo;
} catch (NullPointerException nullPointerException)
{
Log.e("Error caused at TelaSketchUtin loadPreferences method",
">======>" + nullPointerException);
return null;
}
}
/**
* Method used to delete Preferences */
public boolean deletePreferences(String key)
{
SharedPreferences.Editor editor=getPreferences().edit();
editor.remove(key).commit();
return false;
}

Define some statics to store the preference file name and the keys you're going to use:
public static final String PREFS_NAME = "MyPrefsFile";
private static final String PREF_USERNAME = "username";
private static final String PREF_PASSWORD = "password";
You'd then save the username and password as follows:
getSharedPreferences(PREFS_NAME,MODE_PRIVATE)
.edit()
.putString(PREF_USERNAME, username)
.putString(PREF_PASSWORD, password)
.commit();
So you would retrieve them like this:
SharedPreferences pref = getSharedPreferences(PREFS_NAME,MODE_PRIVATE);
String username = pref.getString(PREF_USERNAME, null);
String password = pref.getString(PREF_PASSWORD, null);
if (username == null || password == null) {
//Prompt for username and password
}
Alternatively, if you don't want to name a preferences file you can just use the default:
SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);

For your purpose both, SQLite Database and SharedPreferences will work. But I would suggest SharedPreferences as they are very easy to use. Some ppl like to create a class to hold variables like this but the benefit of SQLite and SharedPreferences file is that the user login name and password information will be with you even if the app goes in background and gets destroyed. So when the user comes back to your app, you can sign them in again without asking for password. If user explicitly decides to logout, you can simply remove the login information from shared preferences file

The easiest way of retrieving log in information from other activities is using "SharedPreferences". I strongly recommend this method for storage and retrieval of Username and Password. Because you can access this information from anywhere in the application without any complications. The log in information may have to use repeatedly in an application.

Many applications may provide a way to capture user preferences on the settings of a specific application or an activity. For supporting this, Android provides a simple set of APIs.
Preferences are typically name value pairs. They can be stored as “Shared Preferences” across various activities in an application (note currently it cannot be shared across processes). Or it can be something that needs to be stored specific to an activity.
Shared Preferences: The shared preferences can be used by all the components (activities, services etc) off the applications.
Activity handled preferences: These preferences can only be used with in the activity and can not be used by other components of the application.
Shared Preferences:
The shared preferences are managed with the help of the getSharedPreferences method of the Context class. The preferences are stored in a default file(1) or you can specify a file name(2) to be used to refer to the preferences.
(1) Here is how you get the instance when you specify the file name
public static final String PREF_FILE_NAME = "PrefFile";
SharedPreferences preferences = getSharedPreferences(PREF_FILE_NAME, MODE_PRIVATE);
MODE_PRIVATE is the operating mode for the preferences. It is the default mode and means the created file will be accessed by only the calling application. Other two mode supported are MODE_WORLD_READABLE and MODE_WORLD_WRITEABLE. In MODE_WORLD_READABLE other application can read the created file but can not modify it. In case of MODE_WORLD_WRITEABLE other applications also have write permissions for the created file.
(2) The recommended way is to use by the default mode, without specifying the file name:
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
Finally, once you have the preferences instance, here is how you can retrieve the stored values from the preferences:
int storedPreference = preferences.getInt("storedInt", 0);
To store values in the preference file SharedPreference.Editor object has to be used. Editor is the nested interface of the SharedPreference class.
SharedPreferences.Editor editor = preferences.edit();
editor.putInt("storedInt", storedPreference); // value to store
editor.commit();
Editor also support methods like remove() and clear() to delete the preference value from the file.
Activity Preferences:
The shared preferences can be used by other application components. But if you do not need to share the preferences with other components and want to have activities private preferences. You can do that with the help of getPreferences() method of the activity. The getPreference method uses the getSharedPreferences() method with the name of the activity class for the preference file name.
Following is the code to get preferences:
SharedPreferences preferences = getPreferences(MODE_PRIVATE);
int storedPreference = preferences.getInt("storedInt", 0);
The code to store values is also same as in case of shared preferences.
SharedPreferences preferences = getPreference(MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();
editor.putInt("storedInt", storedPreference); // value to store
editor.commit();
You can also use other methods like storing the activity state in database. Note Android also contains a package called android.preference. The package defines classes to implement application preferences UI.
To see some more examples check Android's Data Storage post on developers site.
For more info, check this link:
Making data persistent in android

SharedPreferences not saved when exiting Application

I have 3 activities in my Gingerbread 2.3.3 application for Android which I'm constructing in Eclipse.
1) MainActivity --- two options, go to LoginActivity or go directly to HomeScreenActivity
2) LoginActivity --- Enter login credentials (aka username and password), validate, and then store in SharedPreferences. After successfully validating, it goes to the HomescreenActivity. Here's what I have for the SharedPreferences section in LoginActivity:
public static final String PREFS_FILE = "MY_PREFS";
SharedPreferences prefs = getSharedPreferences(PREFS_FILE, MODE_PRIVATE);
SharedPreferences.Editor editor = prefs.edit();
editor.putString("USERNAME", getUsername());
editor.putString("PASSWORD", getPassword());
editor.commit();
3) HomescreenActivity --- a basic homescreen that shows who's logged in right now in the top right corner in a TextView. For this my onResume() contains:
public static final String PREFS_FILE = "MY_PREFS";
SharedPreferences prefs = getSharedPreferences(PREFS_FILE, MODE_PRIVATE);
TextView name_text = (TextView) findViewById(R.id.name_text_vw);
name_text.setText(prefs.getString("USERNAME", "");
When I use the LoginActivity and login, I properly see the username in the TextView on the HomescreenActivity. However, when I exit the application and do some other stuff to get the activity off the stack, I want to go back to the application, go directly to my HomescreenActivity and see my username logged in already. But this doesn't happen. Does anyone know why? I thought SharedPreferences was the way to store settings and data even after you've left your application. Maybe I'm not using the correct mode -- aka MODE_WORLD_READABLE or MODE_WORLD_WRITABLE?

There are shared prefs for activities, and shared prefs for apps. Maybe you are using activity prefs.
To save to preferences:
PreferenceManager.getDefaultSharedPreferences(context).edit().putString("MYLABEL",
"myStringToSave").commit();
To get a stored preference:
PreferenceManager.getDefaultSharedPreferences(context).getString("MYLABEL",
"defaultStringIfNothingFound");
Where context is your Context.

I have to say I don't know the answer to your specific question, I suspect it's because getSharedPreferences is not static and is a method of a Context. Therefore, you have no control over when commit() actually writes to store. However, I recommend a different approach.
I use a static reference in a custom class which extends Application.
public class MyApp extends Application
{
protected static SharedPreferences preferences;
public static void loadPreferences(Context context) {
// load your preferences
}
public static void savePreferences(Context context) {
// save your preferences
}
You can access them via MyApp.preferences.
Don't forget to add your Application class to the manifest.
Good luck!