SPref

SPref allows to manage shared preferences in a simply way

Usage

Dependency:

 compile "com.github.luispereira:spref:0.7.1"

Repository:

    repositories {
        jcenter()   //or  mavenCentral()
    }

In order to initialize the library the following must be applied

public class ApplicationSample extends Application {
    private static SettingsConnector mSharedPreferences;
    
    @Override
    public void onCreate() {
        super.onCreate();
        mSharedPreferences = mSSPref.init(this).buildSettings(); //Initialize the SPref
    }
    
    public SettingsConnector getSPref() {
        return mSharedPreferences;
    }
}

Then the user can manage the SharedPreferences the way we want by using e.g.

 ApplicationSample.getInstance().getSPref().saveSetting("settings-key", "value");
 ApplicationSample.getInstance().getSPref().getSetting("settings-key");

if the user do not want to provide any specific name or file then simply:

 SPref.buildSettings(context).saveSetting("settings-key", "value");
 SPref.buildSettings(context).getSetting("settings-key");

or:

 SPref.init(context).buildSettings().saveSetting("settings-key", "value");
 SPref.init(context).buildSettings().getSetting("settings-key");

Change Default Preferences file name

It is possible to change the name of shared preferences (by default is "sp_settings") by doing on the initialization:

 SPref.init(this).name("NEW_NAME").buildSettings();

Default Preferences

It is possible to add a default resource file by providing it to the SPref

 SPref.init(this).name("NEW_NAME").provideDefaultResourceFile(R.raw.file, false).buildSettings();

This will merge the resource file into the shared preferences. If there is already a value with the same key, the value will not be overrided. In order to change this behaviour and override all the values the user should use the following parameters:

  SPref.init(this).name("NEW_NAME").provideDefaultResourceFile(R.raw.file, true).buildSettings();

Be aware that calling this on application OnCreate() will always override the values according to the given file when the application is created.

The user can also provide a file after the initialization of the SDK by doing (the merge will not override any setting if its false, otherwise pass it true):

 ApplicationSample.getInstance().getSPref().mergeSettings(FILE, false);

The following xml tags are supported:

<default>
 <string name="SETTING_STRING_NAME">SETTING_STRING_VALUE</string>
 <integer name="SETTING_INTEGER_NAME">SETTING_INTEGER_VALUE</integer>
 <float name="SETTING_FLOAT_NAME">SETTING_FLOAT_VALUE</float>
 <long name="SETTING_LONG_NAME">SETTING_LONG_VALUE</long>
 <boolean name="SETTING_BOOLEAN_NAME">SETTING_BOOLEAN_VALUE</boolean> <!-- (true/false) -->
</default>

Encryption

The user can also encrypt his information that is saved on the shared preferences, to do that just use when initializing the sdk:

    SPref.init(this).encrypt(com.lib.spreferences.BuildConfig.PASSWORD_KEY).buildSettings();

The encrypt() method configures the key to use when requesting the following methods to encrypt:

    ApplicationSample.getInstance().getSPref().saveEncryptedSetting("settings-key", "value");

Or this to retrieve the encrypted value:

    ApplicationSample.getInstance().getSPref().getEncryptedSetting("settings-key");

Change Preferences Mode

In order to change the default mode of "MODE_PRIVATE" of the shared preferences, the following method should be called on initialization:

   (...).mode(MODE).buildSettings();

RxJava

For the RxJava version you can use:

    https://github.com/luispereira/RxSPref