Koin

引包

    implementation "org.koin:koin-android:2.2.0-rc-3"
    implementation "org.koin:koin-androidx-viewmodel:2.2.0-rc-3"

Koin 怎么使用？

对象

data class Gril (val age:Int, val name:String)

Application

import android.app.Application
import org.koin.android.ext.koin.androidContext
import org.koin.android.ext.koin.androidFileProperties
import org.koin.android.ext.koin.androidLogger
import org.koin.core.context.GlobalContext.startKoin
import org.koin.core.logger.Level

class App : Application(){

    override fun onCreate() {
        super.onCreate()
        startKoin {
            androidLogger(Level.DEBUG)
            androidContext(this@App)
            androidFileProperties()
            modules(listOf(girlModule))
        }
    }

}

MainActivity

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.util.Log
import org.koin.android.ext.android.inject

class MainActivity : AppCompatActivity() {

    val TAG:String = "MainActivityTAG"

    private val girl by inject<Gril>()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        Log.i(TAG, "girl memory address:"+ girl.toString() +",girl age:"+girl.age+",girl name:"+girl.name)
    }
}