i am trying to store the user preference of whether the checkbox is clicked or not in an Activity , but when i shutdown and restart the app, i don't get the desired result . i.e if the user had checked the checkbox then on restarting i am not getting it as checked.

here's what i have tried:

```
public void onCreate()
{
  ....
  checkbox=(CheckBox)findViewById(R.id.checkbox);

 // storing the user preference
    SharedPreferences sharedpref = getSharedPreferences(MYPREF,Activity.MODE_PRIVATE); //here MYPREF is the name of the file storing the preference
    SharedPreferences.Editor e = sharedpref.edit();
    e.putBoolean("checkboxvalue", checkbox.isChecked());
    e.commit();

  //retrieving the preference set
    SharedPreferences mysharedpref = getSharedPreferences(TextSpeaker.MYPREF,Activity.MODE_PRIVATE);
    checked=mysharedpref.getBoolean("checkboxvalue", false);
    if(checked)checkbox.setChecked(true);

```
['https://Stackoverflow.com/questions/3119558', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/238505/']
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.

1. Shared Preferences: The shared preferences can be used by all the components (activities, services etc) off the applications.
2. 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 `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 = PreferencesManager.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](http://developer.android.com/intl/de/guide/topics/data/data-storage.html#pref) post on developers site.
Hi Pranay if you created before your preference with the same name in other activity or app you will have problems reading the same preference change to MODE\_WORLD\_READABLE

```
getSharedPreferences(MYPREF,Activity.MODE_WORLD_READABLE);

```

or

```
getSharedPreferences(MYPREF,1);

```