SmartPreference

This library makes SharedPreferences convenient.
SmartPreference is Type-safety.

Installation

Add it in your root build.gradle at the end of repositories:

	allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}

Add the dependency

	dependencies {
implementation 'com.github.watanavex:SmartPreference:x.x.x'
}

Usage

Implement a subclass of Preference class

class MyPreference(context: Context): Preference(context) {
// Declares a property
// If it is a Nonnull type, use a property delegate from the `notnull` function.
// The argument is the default value.
var name: String by notnull("no name")
// If it is a Nullable type, use a property delegate from the `nullable` function.
var age: Int? by nullable<Int?>()
}

For example, if you use it from an activity ...

class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val pref = MyPreference(context = this)
pref.name = "susan"
pref.age = null
val myName = pref.name
}
}