customized actionbar

changed settings to gear icon in said actionbar
added useless menu item in the overflow menu
slowly accepting XML containing meaningful code

app/src/main/AndroidManifest.xml

@@ -1,25 +1,25 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.tarfeef101.pwm">
-
-    <application
-        android:allowBackup="true"
-        android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
-        android:roundIcon="@mipmap/ic_launcher_round"
-        android:supportsRtl="true"
-        android:theme="@style/Theme.PWM"
-        android:name=".Entrypoint">
-        <activity android:name=".HomeActivity">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity>
-        <activity android:name=".ThemeActivity"
-                  android:parentActivityName=".HomeActivity">
-        </activity>
-    </application>
-
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.tarfeef101.pwm">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.PWM"
+        android:name=".Entrypoint">
+        <activity android:name=".HomeActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".ThemeActivity"
+                  android:parentActivityName=".HomeActivity">
+        </activity>
+    </application>
+
 </manifest>

app/src/main/java/com/tarfeef101/pwm/HomeActivity.kt

@@ -1,29 +1,51 @@
-package com.tarfeef101.pwm
-
-import android.content.Context
-import android.content.Intent
-import androidx.appcompat.app.AppCompatActivity
-import android.os.Bundle
-import android.provider.AlarmClock.EXTRA_MESSAGE
-import android.view.View
-import androidx.appcompat.app.AppCompatDelegate
-import kotlinx.android.synthetic.main.activity_home.*
-import kotlinx.android.synthetic.main.activity_theme.*
-
-class HomeActivity : AppCompatActivity()
-{
-    override fun onCreate(savedInstanceState: Bundle?)
-    {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_home)
-
-        fun launchThemeSettings()
-        {
-            val intent = Intent(this, ThemeActivity::class.java)
-            startActivity(intent)
-        }
-
-        settingsButton.setText("Settings")
-        settingsButton.setOnClickListener { _ -> launchThemeSettings()}
-    }
+package com.tarfeef101.pwm
+
+import android.content.Intent
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.view.Menu
+import android.view.MenuInflater
+import android.view.MenuItem
+import android.widget.Toast
+import androidx.appcompat.widget.Toolbar
+import kotlinx.android.synthetic.main.activity_home.*
+
+class HomeActivity : AppCompatActivity()
+{
+    override fun onCreate(savedInstanceState: Bundle?)
+    {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_home)
+        setSupportActionBar(toolbar)
+        toolbar.showOverflowMenu()
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu?): Boolean
+    {
+        menuInflater.inflate(R.menu.home_menu, menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean
+    {
+        when (item.itemId)
+        {
+            R.id.settingsGear ->
+            {
+                startActivity(Intent(this, ThemeActivity::class.java))
+            }
+
+            R.id.none ->
+            {
+                Toast.makeText(this, "You can't click null, silly", Toast.LENGTH_SHORT).show()
+            }
+
+            else ->
+            {
+                return super.onOptionsItemSelected(item)
+            }
+        }
+
+        return true
+    }
 }

app/src/main/java/com/tarfeef101/pwm/ThemeActivity.kt

@@ -10,6 +10,7 @@ import android.widget.RadioGroup
 import android.widget.TextClock
 import android.widget.TextView
 import androidx.appcompat.app.AppCompatDelegate
+import kotlinx.android.synthetic.main.activity_home.*
 import kotlinx.android.synthetic.main.activity_theme.*
 
 @SuppressLint("SetTextI18n")
@@ -20,6 +21,11 @@ class ThemeActivity : AppCompatActivity()
     super.onCreate(savedInstanceState)
     setContentView(R.layout.activity_theme)
 
+    // actionbar bootstrap
+    setSupportActionBar(toolbar2)
+    toolbar2.showOverflowMenu()
+    getSupportActionBar()?.setDisplayHomeAsUpEnabled(true)
+
     // load shared preferences file
     val pref = this.getSharedPreferences("prefs", Context.MODE_PRIVATE)
     // retrieve user dark mode setting

app/src/main/res/drawable/settings_icon.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M19.14,12.94c0.04,-0.3 0.06,-0.61 0.06,-0.94c0,-0.32 -0.02,-0.64 -0.07,-0.94l2.03,-1.58c0.18,-0.14 0.23,-0.41 0.12,-0.61l-1.92,-3.32c-0.12,-0.22 -0.37,-0.29 -0.59,-0.22l-2.39,0.96c-0.5,-0.38 -1.03,-0.7 -1.62,-0.94L14.4,2.81c-0.04,-0.24 -0.24,-0.41 -0.48,-0.41h-3.84c-0.24,0 -0.43,0.17 -0.47,0.41L9.25,5.35C8.66,5.59 8.12,5.92 7.63,6.29L5.24,5.33c-0.22,-0.08 -0.47,0 -0.59,0.22L2.74,8.87C2.62,9.08 2.66,9.34 2.86,9.48l2.03,1.58C4.84,11.36 4.8,11.69 4.8,12s0.02,0.64 0.07,0.94l-2.03,1.58c-0.18,0.14 -0.23,0.41 -0.12,0.61l1.92,3.32c0.12,0.22 0.37,0.29 0.59,0.22l2.39,-0.96c0.5,0.38 1.03,0.7 1.62,0.94l0.36,2.54c0.05,0.24 0.24,0.41 0.48,0.41h3.84c0.24,0 0.44,-0.17 0.47,-0.41l0.36,-2.54c0.59,-0.24 1.13,-0.56 1.62,-0.94l2.39,0.96c0.22,0.08 0.47,0 0.59,-0.22l1.92,-3.32c0.12,-0.22 0.07,-0.47 -0.12,-0.61L19.14,12.94zM12,15.6c-1.98,0 -3.6,-1.62 -3.6,-3.6s1.62,-3.6 3.6,-3.6s3.6,1.62 3.6,3.6S13.98,15.6 12,15.6z"/>
+</vector>

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

@@ -1,18 +1,19 @@
-<?xml version="1.0" encoding="utf-8"?>
-<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:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".HomeActivity">
-
-    <Button
-        android:id="@+id/settingsButton"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        android:layout_marginEnd="16dp"
-        android:text="Button"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+<?xml version="1.0" encoding="utf-8"?>
+<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/contraintLayout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".HomeActivity">
+
+    <androidx.appcompat.widget.Toolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="?attr/colorPrimary"
+        android:minHeight="?attr/actionBarSize"
+        android:theme="?attr/actionBarTheme"
+        app:title="PWM" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -6,15 +6,25 @@
     android:layout_height="match_parent"
     tools:context=".ThemeActivity">
 
+    <androidx.appcompat.widget.Toolbar
+        android:id="@+id/toolbar2"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="?attr/colorPrimary"
+        android:minHeight="?attr/actionBarSize"
+        android:theme="?attr/actionBarTheme"
+        app:title="Settings" />
+
     <RadioGroup
         android:id="@+id/themeRadioGroup"
         android:layout_width="156dp"
         android:layout_height="120dp"
+        android:layout_marginTop="16dp"
         app:layout_constraintBottom_toTopOf="@+id/themeStatus"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintHorizontal_bias="0.5"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent">
+        app:layout_constraintTop_toBottomOf="@+id/toolbar2">
 
         <RadioButton
             android:id="@+id/radioButtonDefault"

app/src/main/res/menu/home_menu.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item android:id="@+id/settingsGear"
+        android:icon="@drawable/settings_icon"
+        android:title="Settings"
+        app:showAsAction="ifRoom" />
+
+    <item android:id="@+id/none"
+        android:title="null"
+        app:showAsAction="never" />
+</menu>

app/src/main/res/values-night/themes.xml

@@ -1,16 +1,17 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
-    <!-- Base application theme. -->
-    <style name="Theme.PWM" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
-        <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_200</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
-        <item name="colorOnPrimary">@color/black</item>
-        <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
-        <item name="colorSecondaryVariant">@color/teal_200</item>
-        <item name="colorOnSecondary">@color/black</item>
-        <!-- Status bar color. -->
-        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
-        <!-- Customize your theme here. -->
-    </style>
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.PWM" parent="Theme.MaterialComponents.DayNight.NoActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor">?attr/colorPrimaryDark</item>
+        <!-- Customize your theme here. -->
+        <item name="android:windowNoTitle">true</item>
+    </style>
 </resources>

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

@@ -1,16 +1,17 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
-    <!-- Base application theme. -->
-    <style name="Theme.PWM" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
-        <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_500</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
-        <item name="colorOnPrimary">@color/white</item>
-        <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
-        <item name="colorSecondaryVariant">@color/teal_700</item>
-        <item name="colorOnSecondary">@color/black</item>
-        <!-- Status bar color. -->
-        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
-        <!-- Customize your theme here. -->
-    </style>
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.PWM" parent="Theme.MaterialComponents.DayNight.NoActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor">?attr/colorPrimaryDark</item>
+        <!-- Customize your theme here. -->
+        <item name="android:windowNoTitle">true</item>
+    </style>
 </resources>