BaseActivity

gistfile1.txt

package com.borusan.eta.base

import android.content.IntentFilter
import android.net.ConnectivityManager
import android.os.Bundle
import android.view.View
import androidx.lifecycle.ViewModelProvider
import androidx.lifecycle.ViewModelProviders
import com.borusan.eta.R
import com.borusan.eta.internal.util.functional.lazyThreadSafetyNone
import com.google.android.material.snackbar.Snackbar
import dagger.android.support.DaggerAppCompatActivity
import java.lang.reflect.ParameterizedType
import javax.inject.Inject

abstract class BaseActivity<VM : BaseAndroidViewModel> : DaggerAppCompatActivity(), ConnectivityReceiver.ConnectivityReceiverListener {

    var snackBar: Snackbar? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        registerReceiver(ConnectivityReceiver(),
            IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION)
        )
    }

    private fun showSnackBar(view: View, message: String) {
        snackBar = Snackbar.make(view, message, Snackbar.LENGTH_LONG)
        snackBar?.duration = Snackbar.LENGTH_INDEFINITE
        snackBar?.show()
    }

    override fun onResume() {
        super.onResume()

        ConnectivityReceiver.connectivityReceiverListener = this
    }

    override fun onNetworkConnectionChanged(isConnected: Boolean) {
        if (!isConnected) {
            showSnackBar(findViewById(R.id.drawer_layout), "İnternet erişimin yok. Lütfen bağlantını kontrol et.")

        } else {
            snackBar?.dismiss()
        }
    }

    @Inject
    lateinit var viewModelFactory: ViewModelProvider.Factory

    @Suppress("UNCHECKED_CAST")
    protected val viewModel by lazyThreadSafetyNone {
        val persistentViewModelClass = (javaClass.genericSuperclass as ParameterizedType)
            .actualTypeArguments[0] as Class<VM>
        return@lazyThreadSafetyNone ViewModelProviders.of(this, viewModelFactory)
            .get(persistentViewModelClass)
    }

}