TypedValue is a tiny library project to simplify access to SharedPreferences, Bundle or any other key-value storage with it's own KeyValueDelegate

Common values are available out of the box:

• BoolValue
• StringValue
• IntValue
• LongValue
• FloatValue
• DoubleValue
• ParcelableValue
• StringListValue
• StringSetValue

Date module contains custom TypedValues for managing dates:

• DateValue
• LocalDateValue
• LocalDateTimeValue

For java.time entities ThreeTen library is used.

Demo app

The sample application demonstrates:

• Convenient way to manage application preferences: AppPreferences and AppPreferencesImpl

  Any calls (get(), set(), asObservable(), etc.) of each preference can be easily find via interface properties

   interface AppPreferences {
     val animationTypeValue: AnimationTypeValue
     val scaleValue: FloatValue
     val messageShownValue: BoolValue
   }
  

   class AppPreferencesImpl(app: Application) : AppPreferences {
     private val delegate = PreferenceDelegate(PreferenceManager.getDefaultSharedPreferences(app))
  
     override val animationTypeValue: AnimationTypeValue by lazy { AnimationTypeValue(delegate, KEY_ANIMATION_TYPE, AnimationType.CONFETTI) }
     override val scaleValue: FloatValue by lazy { FloatValue(delegate, KEY_SCALE, 0.8f) }
     override val messageShownValue: BoolValue by lazy { BoolValue(delegate, KEY_MESSAGE_SHOWN) }
  
     private companion object {
       const val KEY_ANIMATION_TYPE = ".key_animation_type"
       const val KEY_SCALE = ".key_scale"
       const val KEY_MESSAGE_SHOWN = ".key_message_shown"
     }
   }
  

• benefits of observable SharedPreferences with uni-directional data flow of 'SettingsPresenter'
• custom TypedValue: AnimationTypeValue

Installation

Add the following dependency to your build.gradle file:

dependencies {
    implementation 'io.denison:typedvalue:${LATEST_VERSION}'
    implementation 'io.denison:typedvalue-date:${LATEST_VERSION}'
}

License

Please see LICENSE