list all installed apps at the Add launcher dialog

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

@@ -25,7 +25,7 @@ class MyCursorAdapter(cxt: Context, dataCursor: Cursor, val itemClick: (AppLaunc
         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))
-        val launcher = AppLauncher(name, icon, pkgName)
+        val launcher = AppLauncher(name, pkgName, icon, null)
         holder.bindView(context, launcher)
     }
 
@@ -37,7 +37,7 @@ class MyCursorAdapter(cxt: Context, dataCursor: Cursor, val itemClick: (AppLaunc
         fun bindView(context: Context, launcher: AppLauncher) {
             with(launcher) {
                 itemView.launcher_label.text = launcher.name
-                itemView.launcher_icon.setImageDrawable(context.resources.getDrawable(launcher.icon))
+                itemView.launcher_icon.setImageDrawable(context.resources.getDrawable(launcher.iconId))
                 itemView.setOnClickListener { itemClick(this) }
             }
         }

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

@@ -0,0 +1,37 @@
+package com.simplemobiletools.applauncher.adapters
+
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import com.simplemobiletools.applauncher.R
+import com.simplemobiletools.applauncher.models.AppLauncher
+import kotlinx.android.synthetic.main.app_launcher_item.view.*
+import java.util.*
+
+class RecyclerAdapter(val launchers: ArrayList<AppLauncher>, val itemClick: (AppLauncher) -> Unit) :
+        RecyclerView.Adapter<RecyclerAdapter.ViewHolder>() {
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bindView(launchers[position])
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): ViewHolder {
+        val view = LayoutInflater.from(parent?.context).inflate(R.layout.app_launcher_item, parent, false)
+        return ViewHolder(view, itemClick)
+    }
+
+    override fun getItemCount(): Int {
+        return launchers.count()
+    }
+
+    class ViewHolder(view: View, val itemClick: (AppLauncher) -> Unit) : RecyclerView.ViewHolder(view) {
+        fun bindView(launcher: AppLauncher) {
+            with(launcher) {
+                itemView.launcher_label.text = launcher.name
+                itemView.launcher_icon.setImageDrawable(launcher.drawable)
+                itemView.setOnClickListener { itemClick(this) }
+            }
+        }
+    }
+}

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

@@ -1,15 +1,27 @@
 package com.simplemobiletools.applauncher.dialogs
 
-import android.app.AlertDialog
 import android.app.Dialog
 import android.app.DialogFragment
+import android.content.Intent
+import android.content.pm.PackageManager
 import android.os.Bundle
+import android.support.v7.app.AlertDialog
+import android.view.View
 import com.simplemobiletools.applauncher.R
+import com.simplemobiletools.applauncher.adapters.RecyclerAdapter
+import com.simplemobiletools.applauncher.models.AppLauncher
+import kotlinx.android.synthetic.main.launcher_picker.view.*
+import java.util.*
 
 class AddAppDialog() : DialogFragment() {
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
         val builder = AlertDialog.Builder(activity)
         builder.setTitle(R.string.add_apps)
+
+        val recyclerView = View.inflate(activity, R.layout.launcher_picker, null)
+        fillGrid(recyclerView)
+        builder.setView(recyclerView)
+
         builder.setPositiveButton(android.R.string.ok, { dialogInterface, i ->
 
         })
@@ -17,4 +29,21 @@ class AddAppDialog() : DialogFragment() {
         builder.setNegativeButton(android.R.string.cancel, null)
         return builder.create()
     }
+
+    private fun fillGrid(recyclerView: View) {
+        val apps = ArrayList<AppLauncher>()
+        val packageManager = activity.packageManager
+        val intent = Intent(Intent.ACTION_MAIN, null)
+        intent.addCategory(Intent.CATEGORY_LAUNCHER)
+        val list = packageManager.queryIntentActivities(intent, PackageManager.PERMISSION_GRANTED)
+        for (info in list) {
+            val componentInfo = info.activityInfo.applicationInfo
+            apps.add(AppLauncher(componentInfo.loadLabel(packageManager).toString(), componentInfo.packageName, 0, componentInfo.loadIcon(packageManager)))
+        }
+
+        apps.sortBy { it.name }
+        recyclerView.launchers_holder.adapter = RecyclerAdapter(apps) {
+
+        }
+    }
 }

app/src/main/kotlin/com/simplemobiletools/applauncher/models/AppLauncher.kt

@@ -1,3 +1,5 @@
 package com.simplemobiletools.applauncher.models
 
-data class AppLauncher(val name: String, val icon: Int, val pkgName: String)
+import android.graphics.drawable.Drawable
+
+data class AppLauncher(val name: String, val pkgName: String, val iconId: Int, val drawable: Drawable?)

app/src/main/res/layout/launcher_picker.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.v7.widget.RecyclerView
+    android:id="@+id/launchers_holder"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:clipToPadding="false"
+    android:paddingTop="@dimen/activity_margin"
+    app:layoutManager="android.support.v7.widget.GridLayoutManager"
+    app:spanCount="@integer/columns"/>