Shared Preferences Tutorial

SharedPreferences are used to store some data persistently.
Similar to database in functionality, but easy to use as compare to database and developer prefer SharedPreferences for storing small amount of data
Usually use to store the flag variable values.
Like Storing sound on /off flag of application

We can get SharedPreferences object using following method.

name	Desired Name of the file. If a preferences file by this name does not exist, it will be created when you retrieve an editor (SharedPreferences.edit ()) and then commit changes (Editor. Commit ()).
mode	File Creation Mode. Use 0 or `MODE_PRIVATE` for the default operation.

SharedPreferences mSharedPreferences =getApplicationContext().getSharedPreferences("pref", MODE_PRIVATE);

* TO WRITE VALUES INTO THE PREFERENCE FILE

//get Editor object using sharedPreference edit() Method

Editor mEditor= mSharedPreferences.edit();

//set boolean Values into preference files

mEditor.putBoolean("booleanValue", true);

//set String value into the preference file

mEditor.putString("stringValue", "hello");

//set integer value into the preference file

mEditor.putInt("intValue", 1);

//set the long value into the preference file

mEditor.putLong("longValue", 1212121);

//set the float value into the preference file

mEditor.putFloat("floatValue", 10.0f);

//commit the changes

mEditor.commit();

* TO READ THE VALUES FROM THE PREFERENCE FILE

//get the boolean value from preference

Boolean booleanValue=mSharedPreferences.getBoolean("boolean", true);

//get the String value from preference

String stringValue=mSharedPreferences.getString("stringValue", "default value");

//get the int value from preference

int intValue=mSharedPreferences.getInt("intValue", 1);

//get the long value from preference

Long longValue=mSharedPreferences.getLong("longValue", 1212121);

//get the float value from the preference

Float floatValue=mSharedPreferences.getFloat("floatValue", 10.0f);

References:

Android Division