use the same recycler adapter under every circumstance

app/src/main/kotlin/com/simplemobiletools/applauncher/activities/MainActivity.kt

@@ -5,22 +5,26 @@ import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
 import com.simplemobiletools.applauncher.R
-import com.simplemobiletools.applauncher.adapters.MyCursorAdapter
+import com.simplemobiletools.applauncher.adapters.RecyclerAdapter
 import com.simplemobiletools.applauncher.databases.DbHelper
 import com.simplemobiletools.applauncher.dialogs.AddAppDialog
 import com.simplemobiletools.applauncher.extensions.isFirstRun
 import com.simplemobiletools.applauncher.extensions.preferences
 import com.simplemobiletools.applauncher.extensions.viewIntent
+import com.simplemobiletools.applauncher.models.AppLauncher
 import kotlinx.android.synthetic.main.activity_main.*
+import java.util.*
 
 class MainActivity : SimpleActivity() {
     lateinit var dbHelper: DbHelper
+    lateinit var launchers: ArrayList<AppLauncher>
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
         dbHelper = DbHelper(applicationContext)
-        launchers_holder.adapter = MyCursorAdapter(applicationContext, dbHelper.getLaunchers()) {
+        launchers = dbHelper.getLaunchers()
+        launchers_holder.adapter = RecyclerAdapter(applicationContext, launchers) {
             val launchIntent = packageManager.getLaunchIntentForPackage(it.pkgName)
             if (launchIntent != null) {
                 startActivity(launchIntent)

app/src/main/kotlin/com/simplemobiletools/applauncher/adapters/RecyclerAdapter.kt

@@ -1,5 +1,6 @@
 package com.simplemobiletools.applauncher.adapters
 
+import android.content.Context
 import android.support.v7.widget.RecyclerView
 import android.view.LayoutInflater
 import android.view.View
@@ -8,11 +9,12 @@ import com.simplemobiletools.applauncher.R
 import com.simplemobiletools.applauncher.models.AppLauncher
 import kotlinx.android.synthetic.main.app_launcher_dialog_item.view.*
 
-class RecyclerAdapter(val launchers: List<AppLauncher>, val itemClick: (AppLauncher) -> Unit) :
+
+class RecyclerAdapter(val cxt: Context, val launchers: List<AppLauncher>, val itemClick: (AppLauncher) -> Unit) :
         RecyclerView.Adapter<RecyclerAdapter.ViewHolder>() {
 
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        holder.bindView(launchers[position])
+        holder.bindView(cxt, launchers[position])
     }
 
     override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): ViewHolder {
@@ -25,11 +27,18 @@ class RecyclerAdapter(val launchers: List<AppLauncher>, val itemClick: (AppLaunc
     }
 
     class ViewHolder(view: View, val itemClick: (AppLauncher) -> Unit) : RecyclerView.ViewHolder(view) {
-        fun bindView(launcher: AppLauncher) {
+        fun bindView(context: Context, launcher: AppLauncher) {
             with(launcher) {
                 itemView.launcher_label.text = launcher.name
-                itemView.launcher_icon.setImageDrawable(launcher.drawable)
                 itemView.setOnClickListener { itemClick(this) }
+
+                if (launcher.iconId != 0) {
+                    val icon = context.resources.getDrawable(launcher.iconId)
+                    itemView.launcher_icon.setImageDrawable(icon)
+                } else {
+                    val icon = context.packageManager.getApplicationIcon(launcher.pkgName)
+                    itemView.launcher_icon.setImageDrawable(icon)
+                }
             }
         }
     }

app/src/main/kotlin/com/simplemobiletools/applauncher/databases/DbHelper.kt

@@ -2,10 +2,11 @@ package com.simplemobiletools.applauncher.databases
 
 import android.content.ContentValues
 import android.content.Context
-import android.database.Cursor
 import android.database.sqlite.SQLiteDatabase
 import android.database.sqlite.SQLiteOpenHelper
 import com.simplemobiletools.applauncher.R
+import com.simplemobiletools.applauncher.models.AppLauncher
+import java.util.*
 
 class DbHelper(context: Context) : SQLiteOpenHelper(context, "launchers.db", null, 1) {
     val TABLE = "launchers"
@@ -43,8 +44,20 @@ class DbHelper(context: Context) : SQLiteOpenHelper(context, "launchers.db", nul
         db.insert(TABLE, null, contentValues)
     }
 
-    fun getLaunchers(): Cursor {
-        return readableDatabase.query(TABLE, arrayOf(NAME, PKG_NAME, ICON_ID), null, null, null, null, NAME)
+    fun getLaunchers(): ArrayList<AppLauncher> {
+        val launchers = ArrayList<AppLauncher>()
+        val cursor = readableDatabase.query(TABLE, arrayOf(NAME, PKG_NAME, ICON_ID), null, null, null, null, NAME)
+        try {
+            while (cursor.moveToNext()) {
+                val name = cursor.getString(cursor.getColumnIndex(DbHelper.NAME))
+                val pkgName = cursor.getString(cursor.getColumnIndex(DbHelper.PKG_NAME))
+                val icon = cursor.getInt(cursor.getColumnIndex(DbHelper.ICON_ID))
+                launchers.add(AppLauncher(name, pkgName, icon, null))
+            }
+        } finally {
+            cursor.close()
+        }
+        return launchers
     }
 
     override fun onCreate(db: SQLiteDatabase) {

app/src/main/kotlin/com/simplemobiletools/applauncher/dialogs/AddAppDialog.kt

@@ -47,7 +47,7 @@ class AddAppDialog() : DialogFragment() {
 
         val sorted = apps.sortedWith(compareBy { it.name.toLowerCase() })
         val unique = sorted.distinctBy { it.pkgName }
-        recyclerView.launchers_holder.adapter = RecyclerAdapter(unique) {
+        recyclerView.launchers_holder.adapter = RecyclerAdapter(activity, unique) {
 
         }
     }