Merge pull request #55 from finnmglas/feature/search-appslist

Make appslist searchable

app/src/main/java/com/finnmglas/launcher/list/apps/AppsRecyclerAdapter.kt

@@ -8,13 +8,16 @@ import android.net.Uri
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.view.inputmethod.InputMethodManager
 import android.widget.ImageView
 import android.widget.PopupMenu
 import android.widget.TextView
 import androidx.recyclerview.widget.RecyclerView
 import com.finnmglas.launcher.*
-import com.finnmglas.launcher.libraries.*
+import com.finnmglas.launcher.libraries.FontAwesome
 import com.finnmglas.launcher.list.intendedChoosePause
+import java.util.*
+import kotlin.collections.ArrayList
 
 /**
  * A [RecyclerView] (efficient scrollable list) containing all apps on the users device.
@@ -30,6 +33,7 @@ class AppsRecyclerAdapter(val activity: Activity,
     RecyclerView.Adapter<AppsRecyclerAdapter.ViewHolder>() {
 
     private val appsList: MutableList<AppInfo>
+    private val appsListDisplayed: MutableList<AppInfo>
 
     inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView),
         View.OnClickListener {
@@ -40,7 +44,7 @@ class AppsRecyclerAdapter(val activity: Activity,
         override fun onClick(v: View) {
             val pos = adapterPosition
             val context: Context = v.context
-            val appPackageName = appsList[pos].packageName.toString()
+            val appPackageName = appsListDisplayed[pos].packageName.toString()
 
             when (intention){
                 "view" -> {
@@ -62,10 +66,10 @@ class AppsRecyclerAdapter(val activity: Activity,
     }
 
     override fun onBindViewHolder(viewHolder: ViewHolder, i: Int) {
-        val appLabel = appsList[i].label.toString()
-        val appPackageName = appsList[i].packageName.toString()
-        val appIcon = appsList[i].icon
-        val isSystemApp = appsList[i].isSystemApp
+        val appLabel = appsListDisplayed[i].label.toString()
+        val appPackageName = appsListDisplayed[i].packageName.toString()
+        val appIcon = appsListDisplayed[i].icon
+        val isSystemApp = appsListDisplayed[i].isSystemApp
 
         viewHolder.textView.text = appLabel
         viewHolder.img.setImageDrawable(appIcon)
@@ -127,7 +131,7 @@ class AppsRecyclerAdapter(val activity: Activity,
         return true
     }
 
-    override fun getItemCount(): Int { return appsList.size }
+    override fun getItemCount(): Int { return appsListDisplayed.size }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
         val inflater = LayoutInflater.from(parent.context)
@@ -136,8 +140,11 @@ class AppsRecyclerAdapter(val activity: Activity,
     }
 
     init {
-        val pm: PackageManager = activity.packageManager
         appsList = ArrayList()
+        appsListDisplayed = ArrayList()
+
+        val pm: PackageManager = activity.packageManager
+
         val i = Intent(Intent.ACTION_MAIN, null)
         i.addCategory(Intent.CATEGORY_LAUNCHER)
         val allApps = pm.queryIntentActivities(i, 0)
@@ -149,5 +156,33 @@ class AppsRecyclerAdapter(val activity: Activity,
             appsList.add(app)
         }
         appsList.sortBy { it.label.toString() }
+        appsListDisplayed.addAll(appsList)
+    }
+
+    /**
+     * The function [filter] is used to search elements within this [RecyclerView].
+     */
+    fun filter(text: String) {
+        appsListDisplayed.clear()
+        if (text.isEmpty()) {
+            appsListDisplayed.addAll(appsList)
+        } else {
+            for (item in appsList) {
+                if (item.label.toString().toLowerCase(Locale.ROOT).contains(text.toLowerCase(Locale.ROOT))) {
+                    appsListDisplayed.add(item)
+                }
+            }
+        }
+
+        // Launch apps automatically if only one result is found
+        // TODO: Add option to disable this
+        if (appsListDisplayed.size == 1 && intention == "view") {
+            launch(appsListDisplayed[0].packageName.toString(), activity)
+
+            val inputMethodManager = activity.getSystemService(Activity.INPUT_METHOD_SERVICE) as InputMethodManager
+            inputMethodManager.hideSoftInputFromWindow(View(activity).windowToken, 0)
+        }
+
+        notifyDataSetChanged()
     }
 }

app/src/main/java/com/finnmglas/launcher/list/apps/ListFragmentApps.kt

@@ -8,10 +8,9 @@ import androidx.fragment.app.Fragment
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.finnmglas.launcher.R
 import com.finnmglas.launcher.UIObject
-import com.finnmglas.launcher.list.intention
-import com.finnmglas.launcher.list.forApp
 import com.finnmglas.launcher.dominantColor
-import com.finnmglas.launcher.getSavedTheme
+import com.finnmglas.launcher.list.forApp
+import com.finnmglas.launcher.list.intention
 import kotlinx.android.synthetic.main.list_apps.*
 
 
@@ -36,17 +35,37 @@ class ListFragmentApps : Fragment(), UIObject {
 
     override fun applyTheme() {
         list_apps_container.setBackgroundColor(dominantColor)
+        list_apps_searchview.setBackgroundColor(dominantColor)
+        list_apps_searchbar.setBackgroundColor(dominantColor)
     }
 
     override fun setOnClicks() { }
 
     override fun adjustLayout() {
+
+        val appsRViewAdapter = AppsRecyclerAdapter(activity!!, intention, forApp)
+
         // set up the list / recycler
         list_apps_rview.apply {
             // improve performance (since content changes don't change the layout size)
             setHasFixedSize(true)
             layoutManager = LinearLayoutManager(context)
-            adapter = AppsRecyclerAdapter(activity!!, intention, forApp)
+            adapter = appsRViewAdapter
         }
+
+        list_apps_searchview.setOnQueryTextListener(object :
+            androidx.appcompat.widget.SearchView.OnQueryTextListener {
+
+            override fun onQueryTextSubmit(query: String): Boolean {
+                appsRViewAdapter.filter(query);
+                return false
+            }
+
+            override fun onQueryTextChange(newText: String): Boolean {
+                appsRViewAdapter.filter(newText);
+                return false
+            }
+
+        })
     }
 }

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

@@ -2,10 +2,32 @@
 <androidx.constraintlayout.widget.ConstraintLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/list_apps_container"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/list_apps_searchbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <androidx.appcompat.widget.SearchView
+            android:id="@+id/list_apps_searchview"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="8sp"
+            android:iconifiedByDefault="false"
+            app:iconifiedByDefault="false"
+            app:queryHint="Search Applications"
+            app:searchHintIcon="@android:drawable/ic_menu_search"
+            app:searchIcon="@android:drawable/ic_menu_search" />
+    </com.google.android.material.appbar.AppBarLayout>
+
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/list_apps_rview"
         android:layout_width="match_parent"
@@ -18,6 +40,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toBottomOf="@id/list_apps_searchbar" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/styles.xml

@@ -6,9 +6,13 @@
         <item name="colorPrimaryDark">@color/finnmglasTheme_background_color</item>
         <item name="android:colorBackground">@color/finnmglasTheme_background_color</item>
 
-        <item name="colorAccent">@color/finnmglasTheme_accent_color</item>
+        <item name="colorAccent">#888</item>
 
         <item name="android:textColor">@color/finnmglasTheme_text_color</item>
+        <item name="android:textColorSecondary">@color/finnmglasTheme_text_color</item>
+        <item name="android:textColorPrimary">@color/finnmglasTheme_text_color</item>
+        <item name="android:textColorHint">#555</item>
+
         <item name="android:buttonStyle">@style/Widget.AppCompat.Button.Colored</item>
         <item name="colorButtonNormal">@color/finnmglasTheme_accent_color</item>