list hidden icons at the proper activity

app/src/main/kotlin/com/simplemobiletools/launcher/activities/HiddenIconsActivity.kt

@@ -2,17 +2,38 @@ package com.simplemobiletools.launcher.activities
 
 import android.os.Bundle
 import com.simplemobiletools.commons.helpers.NavigationIcon
+import com.simplemobiletools.commons.helpers.ensureBackgroundThread
+import com.simplemobiletools.commons.views.MyGridLayoutManager
 import com.simplemobiletools.launcher.R
+import com.simplemobiletools.launcher.adapters.HiddenIconsAdapter
+import com.simplemobiletools.launcher.extensions.getColumnCount
+import com.simplemobiletools.launcher.extensions.hiddenIconsDB
+import com.simplemobiletools.launcher.models.HiddenIcon
 import kotlinx.android.synthetic.main.activity_hidden_icons.*
 
 class HiddenIconsActivity : SimpleActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_hidden_icons)
+        updateIcons()
+
+        val layoutManager = manage_hidden_icons_list.layoutManager as MyGridLayoutManager
+        layoutManager.spanCount = getColumnCount()
     }
 
     override fun onResume() {
         super.onResume()
         setupToolbar(manage_hidden_icons_toolbar, NavigationIcon.Arrow)
     }
+
+    private fun updateIcons() {
+        ensureBackgroundThread {
+            val hiddenIcons = hiddenIconsDB.getHiddenIcons().toMutableList() as ArrayList<HiddenIcon>
+            HiddenIconsAdapter(this, hiddenIcons) {
+
+            }.apply {
+                manage_hidden_icons_list.adapter = this
+            }
+        }
+    }
 }

app/src/main/kotlin/com/simplemobiletools/launcher/adapters/HiddenIconsAdapter.kt

@@ -0,0 +1,81 @@
+package com.simplemobiletools.launcher.adapters
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import com.bumptech.glide.Glide
+import com.bumptech.glide.load.engine.DiskCacheStrategy
+import com.bumptech.glide.load.resource.drawable.DrawableTransitionOptions
+import com.bumptech.glide.request.transition.DrawableCrossFadeFactory
+import com.simplemobiletools.commons.extensions.getProperTextColor
+import com.simplemobiletools.commons.extensions.portrait
+import com.simplemobiletools.commons.extensions.realScreenSize
+import com.simplemobiletools.commons.helpers.mydebug
+import com.simplemobiletools.launcher.R
+import com.simplemobiletools.launcher.activities.SimpleActivity
+import com.simplemobiletools.launcher.models.HiddenIcon
+import kotlinx.android.synthetic.main.item_hidden_icon.view.*
+
+class HiddenIconsAdapter(
+    val activity: SimpleActivity,
+    var hiddenIcons: ArrayList<HiddenIcon>,
+    val itemClick: (Any) -> Unit
+) : RecyclerView.Adapter<HiddenIconsAdapter.ViewHolder>() {
+
+    private var textColor = activity.getProperTextColor()
+    private var iconPadding = 0
+
+    init {
+        calculateIconWidth()
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.item_hidden_icon, parent, false)
+        return ViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bindView(hiddenIcons[position])
+    }
+
+    override fun getItemCount() = hiddenIcons.size
+
+    private fun calculateIconWidth() {
+        val currentColumnCount = activity.resources.getInteger(
+            if (activity.portrait) {
+                R.integer.portrait_column_count
+            } else {
+                R.integer.landscape_column_count
+            }
+        )
+
+        mydebug("size ${activity.realScreenSize.x}")
+        val iconWidth = activity.realScreenSize.x / currentColumnCount
+        iconPadding = (iconWidth * 0.1f).toInt()
+    }
+
+    inner class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
+        fun bindView(icon: HiddenIcon): View {
+            itemView.apply {
+                hidden_icon_label.text = icon.title
+                hidden_icon_label.setTextColor(textColor)
+                hidden_icon.setPadding(iconPadding, iconPadding, iconPadding, 0)
+
+                val factory = DrawableCrossFadeFactory.Builder(150).setCrossFadeEnabled(true).build()
+
+                Glide.with(activity)
+                    .load(icon.drawable)
+                    .diskCacheStrategy(DiskCacheStrategy.RESOURCE)
+                    .transition(DrawableTransitionOptions.withCrossFade(factory))
+                    .into(hidden_icon)
+
+                setOnClickListener {
+                    itemClick(icon)
+                }
+            }
+
+            return itemView
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/launcher/interfaces/AppLaunchersDao.kt

@@ -16,4 +16,7 @@ interface AppLaunchersDao {
 
     @Query("DELETE FROM apps WHERE package_name = :packageName")
     fun deleteApp(packageName: String)
+
+    @Query("DELETE FROM apps WHERE id = :id")
+    fun deleteById(id: Long)
 }

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

@@ -32,7 +32,7 @@
             android:layout_height="match_parent"
             android:clipToPadding="false"
             android:scrollbars="vertical"
-            app:layoutManager="com.simplemobiletools.commons.views.MyLinearLayoutManager" />
+            app:layoutManager="com.simplemobiletools.commons.views.MyGridLayoutManager" />
 
         <com.simplemobiletools.commons.views.MyTextView
             android:id="@+id/manage_hidden_icons_placeholder"

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

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/hidden_icon_holder"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:background="?attr/selectableItemBackground"
+    android:clickable="true"
+    android:focusable="true"
+    android:paddingStart="@dimen/small_margin"
+    android:paddingTop="@dimen/medium_margin"
+    android:paddingEnd="@dimen/small_margin"
+    android:paddingBottom="@dimen/small_margin">
+
+    <com.simplemobiletools.commons.views.MySquareImageView
+        android:id="@+id/hidden_icon"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/launcher_icon_size"
+        android:layout_gravity="center_horizontal|bottom" />
+
+    <TextView
+        android:id="@+id/hidden_icon_label"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/hidden_icon"
+        android:ellipsize="end"
+        android:gravity="center_horizontal|top"
+        android:maxLines="2"
+        android:textSize="@dimen/smaller_text_size" />
+
+</RelativeLayout>