Correction TP 23/30 - Android - Jeu blind test

activity_blindtest.xml

<?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=".BlindtestActivity"
    android:id="@+id/reponses">

    <Button
        android:id="@+id/btn1"
        android:layout_width="300dp"
        android:layout_height="wrap_content"
        android:text="Bouton 1"
        android:textSize="25dp"
        android:padding="25dp"
        android:background="@color/colorPurple"
        android:textColor="@color/colorWhite"
        android:layout_marginTop="80dp"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"/>

    <Button
        android:id="@+id/btn2"
        android:layout_width="300dp"
        android:layout_height="wrap_content"
        android:text="Bouton 2"
        android:textSize="25dp"
        android:background="@color/colorPurple"
        android:textColor="@color/colorWhite"
        android:padding="25dp"
        android:layout_marginTop="50dp"
        app:layout_constraintTop_toBottomOf="@id/btn1"
        app:layout_constraintStart_toStartOf="@id/btn1"/>

    <Button
        android:id="@+id/btn3"
        android:layout_width="300dp"
        android:layout_height="wrap_content"
        android:text="Bouton 3"
        android:textSize="25dp"
        android:background="@color/colorPurple"
        android:textColor="@color/colorWhite"
        android:padding="25dp"
        android:layout_marginTop="50dp"
        app:layout_constraintTop_toBottomOf="@id/btn2"
        app:layout_constraintStart_toStartOf="@id/btn2"/>

    <Button
        android:id="@+id/btn4"
        android:layout_width="300dp"
        android:layout_height="wrap_content"
        android:text="Bouton 4"
        android:textSize="25dp"
        android:background="@color/colorPurple"
        android:textColor="@color/colorWhite"
        android:padding="25dp"
        android:layout_marginTop="50dp"
        app:layout_constraintTop_toBottomOf="@id/btn3"
        app:layout_constraintStart_toStartOf="@id/btn3"/>

</androidx.constraintlayout.widget.ConstraintLayout>

activity_listen_music.xml

<?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=".MainActivity">

    <Button
        android:id="@+id/playBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Jouer"
        android:textSize="34dp"
        android:padding="15dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

activity_main.xml

<?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=".MainActivity">

    <Button
        android:id="@+id/playBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Jouer"
        android:textSize="34dp"
        android:padding="15dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

BlindtestActivity.java

package fr.gravendev.blindtestapp;

import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;

import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class BlindtestActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_blindtest);

        Random random = new Random();

        // recuperer l'extra NomChanson
        String nomChanson = getIntent().getStringExtra("NomChanson");

        // liste de fausses musique
        List<String> faussesMusiques = new ArrayList<>();
        faussesMusiques.add("Pitakara");
        faussesMusiques.add("Los Del mondos");
        faussesMusiques.add("True love");
        faussesMusiques.add("Filodo");
        faussesMusiques.add("El amor que calor");
        faussesMusiques.add("C++ song");
        faussesMusiques.add("The night of Rust");
        faussesMusiques.add("Ardente de mi cuerpo");

        // generation des fausses musique
        ConstraintLayout rootLayout = findViewById(R.id.reponses);
        int count = rootLayout.getChildCount();

        // pour chaque element
        for(int i = 0; i < count; i++){
            final Button button = (Button) rootLayout.getChildAt(i);
            int randomNumber = random.nextInt(faussesMusiques.size() - 1);
            String fausseMusiqueGenere = faussesMusiques.get(randomNumber);
            button.setText(fausseMusiqueGenere);
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    // afficher un toast (un petit message pendant quelques instants)
                    Toast.makeText(getApplicationContext(), "Perdu !", Toast.LENGTH_SHORT).show();
                    button.setEnabled(false);
                    prochaineMusique();
                }
            });
        }

        // choisir au hasard un bouton avec la bonne réponse
        int numeroBonneReponse = random.nextInt(count);
        final Button bonneReponseBtn = (Button) rootLayout.getChildAt(numeroBonneReponse);
        bonneReponseBtn.setText(nomChanson);
        bonneReponseBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // afficher un toast lors de la victoire (un petit message pendant quelques instants)
                bonneReponseBtn.setEnabled(false);
                Toast.makeText(getApplicationContext(), "Bravo !", Toast.LENGTH_SHORT).show();
                prochaineMusique();
            }
        });




    }

    public void prochaineMusique() {
        // attendre 2s
        Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                // redirection vers l'ecoute d'une nouvelle musique
                finish();
                startActivity(new Intent(getApplicationContext(), ListenMusicActivity.class));
            }
        }, 2000);
    }

}

ListenMusicActivity.java

package fr.gravendev.blindtestapp;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;

import java.util.Random;

public class ListenMusicActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_listen_music);

        // rendre la musique aleatoire
        int[] sons = new int[] {
            R.raw.backpack,
            R.raw.moonlight,
            R.raw.notosa,
            R.raw.oiseaux,
            R.raw.papillon,
            R.raw.rotodo,
            R.raw.sans_commentaire
        };

        // le nom des musiques
        String[] nomMusiques = {
           "Backpack",
           "Moonlight",
           "Notosa",
           "Oiseaux",
           "Papillon bleu",
           "Rotodo",
           "Sans Commentaire"
        };

        // choisir une à partir de ce tableau
        Random random = new Random();
        final int nombreHasard = random.nextInt(sons.length-1);
        int resourceHasard = sons[nombreHasard];
        final String nomChanson = nomMusiques[nombreHasard];

        // lancer la musique papillon.wav
        MediaPlayer mediaPlayer = MediaPlayer.create(getApplicationContext(), resourceHasard);
        mediaPlayer.start();

        mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mp) {

                // creer l'action
                Intent intent = new Intent(getApplicationContext(), BlindtestActivity.class);
                intent.putExtra("NomChanson", nomChanson);

                finish();
                startActivity(intent);
            }
        });

    }
}

MainActivity.java

package fr.gravendev.blindtestapp;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // recuperer le bouton qui s'appelle playBtn
        Button playBtn = findViewById(R.id.playBtn);

        // associer le bouton à un evenement
        playBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
                startActivity(new Intent(getApplicationContext(), ListenMusicActivity.class));
            }
        });
    }
}