change background completed

app/src/main/java/xyz/r0r5chach/cpsAssist/BtnID.java

@@ -5,5 +5,6 @@ public enum BtnID {
     EDIT_BUTTON,
     DELETE_BUTTON,
     NOTES_BUTTON,
-    QUIZ_BUTTON
+    QUIZ_BUTTON,
+    BACKGROUND_BUTTON
 }

app/src/main/java/xyz/r0r5chach/cpsAssist/main/BtnOnClickListener.java

@@ -2,17 +2,28 @@ package xyz.r0r5chach.cpsAssist.main;
 
 import android.app.Activity;
 import android.content.Intent;
+import android.graphics.Color;
 import android.view.View;
+import android.widget.LinearLayout;
 
 import java.util.Locale;
+import java.util.Random;
 
 import xyz.r0r5chach.cpsAssist.BtnID;
+import xyz.r0r5chach.cpsAssist.R;
 import xyz.r0r5chach.cpsAssist.quiz.QuizActivity;
 import xyz.r0r5chach.cpsAssist.notes.NotesActivity;
 
 public class BtnOnClickListener implements View.OnClickListener{
+    private String backgroundColor;
+
+    public BtnOnClickListener() {
+        backgroundColor = null;
+    }
+
     @Override
     public void onClick(View v) {
+        LinearLayout l = (LinearLayout) v.getParent();
         String id = v.getResources().getResourceName(v.getId()).split("/")[1];
         Intent intent = null;
         switch(BtnID.valueOf(id.toUpperCase(Locale.ROOT))) {
@@ -22,10 +33,18 @@ public class BtnOnClickListener implements View.OnClickListener{
             case QUIZ_BUTTON:
                 intent = new Intent(v.getContext(), QuizActivity.class);
                 break;
+            case BACKGROUND_BUTTON:
+                Random rand = new Random();
+                backgroundColor = String.format("#%06x", rand.nextInt(0xffffff + 1));
+                l.setBackgroundColor(Color.parseColor(backgroundColor));
+                break;
         }
         Activity main = (Activity) v.getContext();
         if (intent != null) {
             intent.putExtra("username", main.getIntent().getStringExtra("username"));
+            if (backgroundColor != null) {
+                intent.putExtra("background", backgroundColor);
+            }
             main.startActivity(intent);
         }
     }

app/src/main/java/xyz/r0r5chach/cpsAssist/main/MainActivity.java

@@ -1,5 +1,6 @@
 package xyz.r0r5chach.cpsAssist.main;
 
+import android.media.MediaDrm;
 import android.os.Bundle;
 
 import androidx.appcompat.app.AppCompatActivity;
@@ -22,7 +23,9 @@ public class MainActivity extends AppCompatActivity {
     } //TODO: Add change background button to layout and add logic to listner
 
     private void initButtons() {
-        findViewById(R.id.notes_button).setOnClickListener(new BtnOnClickListener());
-        findViewById(R.id.quiz_button).setOnClickListener(new BtnOnClickListener());
+        BtnOnClickListener lstn = new BtnOnClickListener();
+        findViewById(R.id.notes_button).setOnClickListener(lstn);
+        findViewById(R.id.quiz_button).setOnClickListener(lstn);
+        findViewById(R.id.background_button).setOnClickListener(lstn);
     }
 }

app/src/main/java/xyz/r0r5chach/cpsAssist/notes/NotesActivity.java

@@ -4,6 +4,7 @@ import androidx.appcompat.app.AppCompatActivity;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
+import android.graphics.Color;
 import android.os.Bundle;
 import android.widget.TextView;
 
@@ -18,6 +19,9 @@ public class NotesActivity extends AppCompatActivity {
         setContentView(R.layout.activity_notes);
         initRecycler();
         setTitle("Notes- " + getIntent().getStringExtra("username"));
+        if (getIntent().hasExtra("background")) {
+            findViewById(R.id.notes_layout).setBackgroundColor(Color.parseColor(getIntent().getStringExtra("background")));
+        }
         findViewById(R.id.add_Button).setOnClickListener(new BtnOnClickListener(adapter));
     }
 

app/src/main/java/xyz/r0r5chach/cpsAssist/quiz/QuizActivity.java

@@ -1,5 +1,6 @@
 package xyz.r0r5chach.cpsAssist.quiz;
 
+import android.graphics.Color;
 import android.os.Bundle;
 import android.widget.Button;
 import android.widget.LinearLayout;
@@ -21,6 +22,9 @@ public class QuizActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_quiz);
         setTitle("Quiz- " + getIntent().getStringExtra("username"));
+        if (getIntent().hasExtra("background")) {
+            findViewById(R.id.quiz_layout).setBackgroundColor(Color.parseColor(getIntent().getStringExtra("background")));
+        }
         LinearLayout layout = findViewById(R.id.quiz_layout);
         quiz = new Quiz(getString(R.string.questions), getString(R.string.correct_answers), getString(R.string.incorrect_answers));
         initQuestions(layout);

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

@@ -2,6 +2,7 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:id="@+id/main_layout"
     android:orientation="vertical">
 
     <Button
@@ -15,4 +16,10 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="@string/quiz_button_text" />
+
+    <Button
+        android:id="@+id/background_button"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/change_background_button_text" />
 </LinearLayout>

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

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/notes_layout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"

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

@@ -1,4 +1,4 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
+<resources>
     <!-- Base application theme. -->
     <style name="Theme.CpsAssist" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Primary brand color. -->
@@ -13,8 +13,4 @@
         <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
     </style>
-    <style name="edit_dialog">
-        <item name="android:background">@color/white</item>
-        <item name="android:textColor">@color/black</item>
-    </style>
 </resources>

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

@@ -17,4 +17,5 @@
     <string name="saveButtonText">Save</string>
     <string name="quiz_button_text">Quiz</string>
     <string name="submit_button_text">Submit</string>
+    <string name="change_background_button_text">Change Background</string>
 </resources>

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

@@ -19,8 +19,4 @@
     </style>
     <style name="Theme.CpsAssist.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
     <style name="Theme.CpsAssist.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
-    <style name="edit_dialog">
-        <item name="android:background">@color/black</item>
-        <item name="android:textColor">@color/white</item>
-    </style>
 </resources>