implement SharedPref

app/src/androidTest/java/ch/sdp/vibester/model/UserSharedPrefTest.kt

@@ -0,0 +1,40 @@
+package ch.sdp.vibester.model
+
+import android.content.Context
+import androidx.test.core.app.ApplicationProvider
+import ch.sdp.vibester.profile.UserProfile
+import org.junit.Assert
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class UserSharedPrefTest {
+    @Test
+    fun sharedPrefTest(){
+        val handle: String = "myHandle"
+        val username: String = "myUsername"
+        val image: String = "myImage"
+        val email: String = "myEmail"
+        val totalGames: Int = 10
+        val bestScore: Int = 27
+        val correctSongs: Int = 16
+        val ranking: Int = 6
+
+        val ctx = ApplicationProvider.getApplicationContext() as Context
+
+        val pro = UserProfile(handle, username, image, email, totalGames, bestScore, correctSongs, ranking)
+        UserSharedPref.setUser(ctx, pro)
+        UserSharedPref.updateScore(ctx, 1, -1, 0, 1)
+
+        val updated = UserSharedPref.getUser(ctx)
+
+        assertEquals(pro.handle, updated.handle)
+        assertEquals(pro.username, updated.username)
+        assertEquals(pro.image, updated.image)
+        assertEquals(pro.email, updated.email)
+        assertEquals(pro.totalGames+1, updated.totalGames)
+        assertEquals(pro.bestScore-1, updated.bestScore)
+        assertEquals(pro.correctSongs, updated.correctSongs)
+        assertEquals(pro.ranking+1, updated.ranking)
+
+    }
+}

app/src/main/java/ch/sdp/vibester/activity/WelcomeActivity.kt

@@ -5,6 +5,7 @@ import android.content.Intent
 import android.os.Bundle
 import android.view.View
 import android.view.Window.FEATURE_NO_TITLE
+import android.widget.TextView
 import androidx.appcompat.app.AppCompatActivity
 import ch.sdp.vibester.R
 import ch.sdp.vibester.model.Song
@@ -14,8 +15,11 @@ class WelcomeActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         requestWindowFeature(FEATURE_NO_TITLE)
         supportActionBar?.hide()
-
         setContentView(R.layout.activity_welcome_screen)
+
+        val tv = findViewById<TextView>(R.id.WelcomingText)
+        tv.isSelected = true
+
     }
 
     private fun sendDirectIntent(arg: Class<*>?) {

app/src/main/java/ch/sdp/vibester/model/UserSharedPref.kt

@@ -0,0 +1,85 @@
+package ch.sdp.vibester.model
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.preference.PreferenceManager
+import ch.sdp.vibester.profile.UserProfile
+
+
+class UserSharedPref private constructor() {
+    companion object{
+        val HANDLE = "handle"
+        val USERNAME = "username"
+        val IMAGE = "image"
+        val EMAIL = "email"
+        val TOTAL_GAMES = "totalGames"
+        val BEST_SCORE = "bestScore"
+        val CORRECT_SONGS = "correctSongs"
+        val RANKING = "ranking"
+                /*
+                    https://stackoverflow.com/questions/12744337/how-to-keep-android-applications-always-be-logged-in-state#:~:text=When%20users%20log%20in%20to,direct%20to%20the%20login%20page.
+                 */
+
+        fun getSharedPreferences(ctx: Context): SharedPreferences? {
+            return PreferenceManager.getDefaultSharedPreferences(ctx)
+        }
+
+        fun setUser(ctx: Context, user: UserProfile){
+            val edit = getSharedPreferences(ctx)?.edit()
+            if (edit != null) {
+                edit.putString(HANDLE, user.handle)
+                edit.putString(USERNAME, user.username)
+                edit.putString(IMAGE, user.image)
+                edit.putString(EMAIL, user.email)
+                edit.putInt(TOTAL_GAMES, user.totalGames)
+                edit.putInt(BEST_SCORE, user.bestScore)
+                edit.putInt(CORRECT_SONGS, user.correctSongs)
+                edit.putInt(RANKING, user.ranking)
+                edit.commit()
+            }
+        }
+
+        fun updateScore(ctx: Context, deltaTotal: Int = 0, deltaBest: Int = 0, deltaCorrect: Int = 0, deltaRanking: Int = 0){
+            val sharedPref = getSharedPreferences(ctx)
+            if(sharedPref != null){
+                val edit = sharedPref.edit()
+                val current_total_games = sharedPref.getInt(TOTAL_GAMES, 0) + deltaTotal
+                val current_best_score = sharedPref.getInt(BEST_SCORE, 0) + deltaBest
+                val current_correct_song = sharedPref.getInt(CORRECT_SONGS, 0) + deltaCorrect
+                val current_ranking = sharedPref.getInt(RANKING, 0) + deltaRanking
+                edit.putInt(TOTAL_GAMES, current_total_games)
+                edit.putInt(BEST_SCORE, current_best_score)
+                edit.putInt(CORRECT_SONGS, current_correct_song)
+                edit.putInt(RANKING, current_ranking)
+                edit.commit()
+            }
+        }
+
+        fun getUser(ctx: Context): UserProfile{
+            val sharedPref = getSharedPreferences(ctx)
+
+            var handle = ""
+            var username = ""
+            var image = ""
+            var email = ""
+            var totalGames = -1
+            var bestScore = -1
+            var correctSongs = -1
+            var ranking = -1
+
+            if(sharedPref != null) {
+                handle = sharedPref.getString(HANDLE, "").toString()
+                username = sharedPref.getString(USERNAME, "").toString()
+                image = sharedPref.getString(IMAGE, "").toString()
+                email = sharedPref.getString(EMAIL, "").toString()
+                totalGames = sharedPref.getInt(TOTAL_GAMES, 0)
+                bestScore = sharedPref.getInt(BEST_SCORE, 0)
+                correctSongs = sharedPref.getInt(CORRECT_SONGS, 0)
+                ranking = sharedPref.getInt(RANKING, 0)
+            }
+            return UserProfile(handle, username, image, email, totalGames, bestScore, correctSongs, ranking)
+        }
+
+
+    }
+}

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

@@ -21,12 +21,11 @@
     <ScrollView
         android:layout_width="468dp"
         android:layout_height="0dp"
-        android:layout_marginTop="27dp"
+        android:layout_marginTop="10dp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/vibester_welcome_logo"
-        app:layout_constraintVertical_bias="0.0">
+        app:layout_constraintTop_toBottomOf="@+id/WelcomingText">
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -41,10 +40,10 @@
                 android:layout_marginTop="10dp"
                 android:backgroundTint="@color/cg_blue"
                 android:elevation="10dp"
-                android:stateListAnimator="@null"
-                android:translationZ="10dp"
                 android:onClick="switchToPlay"
+                android:stateListAnimator="@null"
                 android:text="@string/play_a_game"
+                android:translationZ="10dp"
                 app:icon="@android:drawable/ic_media_play" />
 
             <Button
@@ -106,4 +105,26 @@
         </LinearLayout>
     </ScrollView>
 
+    <TextView
+        android:id="@+id/WelcomingText"
+        android:layout_width="407dp"
+        android:layout_height="28dp"
+        android:layout_marginStart="5dp"
+        android:layout_marginTop="17dp"
+        android:layout_marginEnd="5dp"
+        android:ellipsize="marquee"
+        android:marqueeRepeatLimit="marquee_forever"
+        android:scrollHorizontally="true"
+        android:singleLine="true"
+        android:focusable="true"
+        android:focusableInTouchMode="true"
+        android:fontFamily="monospace"
+        android:gravity="center"
+        android:text="Welcome New Player, create an account in the profile section"
+        android:textColor="@color/black"
+        android:textSize="20sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/vibester_welcome_logo" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>