Question

1. SUMMARY This project will simulate the card game Concentration for one player. In Concentration, all cards, or pictures in this case, are upside down. Two cards are chosen, and if they match they are taken out of the game. If they don't match in this version, one "allowed fail" is decremented. The player starts with a set number of allowed fails, such as 8. This project will involve the following: 2 Activities hooked together by an Intent. TableLayout Image Views. User OnClick event handling. 2. DETAILS a. Home Activity screen. i. Shows Wins, Losses, and highest number of "Allowed Fails" eft. ii. Shows a button to begin game. 1. Game Activity is started by expecting values back via its Intent. iii. Handles return from Game Activity upon GAME END. 1. If return is -1, then Losses number goes up 1. 2. If return is 0 or more, then Wins is incremented and the number returned from the game Activity replaces highest Allowed Fails left number if higher b. Game Activity. i. Displays 4x4 grid of pictures using the TableLayout type. ii. The pictures will be ImageView view types and each will have a unique ID. 1. There are 3 sets of pictures for each of the 16 ImageViews. a. The upside down pic, which can be a pic or something like that. b. The pic itself, revealed when the user clicks the upside down pic c. The completed pic, which can be a check mark, green light, etc. iii. The Activity java file will handle onClick events on the pictures 1. On first of two grid clicks: The picture is shown. 2. On second of two grid clicks: The second picture is shown for about 3 seconds or you can simply show a "Continue" button, then after the timer has ticked off 3 seconds or the user clicks the button (whichever way you designed it)...

Please help me with this project by using Android Studio. I need to know the xml and the java activities in both activities. Also the manifest activity. I appreciate the effort and I'll rate you with 5 stars.

Answer 1

Hi, This is what I could do in 2 hours .

MainActivity File :

package com.avi.samplememory;

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

/**
 * Created by anushab on 3/19/2017.
 */

public class MainActivity extends Activity {
    Button startGame;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        startGame = (Button)findViewById(R.id.button);
        startGame.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,Manager.class);
                startActivity(intent);
            }
        });
    }
}

Main activity xml :

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <Button
        android:text="Start Game"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/button"
        android:layout_weight="1" />
</LinearLayout>

Manager Activity :

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

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;

public class Manager extends Activity {
    private static int ROW_COUNT = -1;
   private static int COL_COUNT = -1;
   private Context context;
   private Drawable backImage;
   private int [] [] cards;
   private List<Drawable> images;
   private Card firstCard;
   private Card seconedCard;
   private ButtonListener buttonListener;
   
   private static Object lock = new Object();
   
   int turns =0;
   private TableLayout mainTable;
   private UpdateCardsHandler handler;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
      
        
        handler = new UpdateCardsHandler();
        loadImages();
        setContentView(R.layout.main);
       

        
       backImage =  getResources().getDrawable(R.drawable.icon);
       

      
       buttonListener = new ButtonListener();
        
        mainTable = (TableLayout)findViewById(R.id.TableLayout03);
        
        
        context  = mainTable.getContext();
        
           newGame(4,4);
           



    }
    
    private void newGame(int c, int r) {
       ROW_COUNT = r;
       COL_COUNT = c;
       
       cards = new int [COL_COUNT] [ROW_COUNT];
       
       
       mainTable.removeView(findViewById(R.id.TableRow01));
       mainTable.removeView(findViewById(R.id.TableRow02));

       TableRow tr = ((TableRow)findViewById(R.id.TableRow03));
       tr.removeAllViews();
       
       mainTable = new TableLayout(context);
       tr.addView(mainTable);
       
        for (int y = 0; y < ROW_COUNT; y++) {
           mainTable.addView(createRow(y));
          }
        
        firstCard=null;
        loadCards();
        
        turns=0;
        ((TextView)findViewById(R.id.tv1)).setText("Tries: "+turns);
        
         
   }
    
    private void loadImages() {
       images = new ArrayList<Drawable>();
       
       images.add(getResources().getDrawable(R.drawable.card1));
       images.add(getResources().getDrawable(R.drawable.card2));
       images.add(getResources().getDrawable(R.drawable.card3));
       images.add(getResources().getDrawable(R.drawable.card4));
       images.add(getResources().getDrawable(R.drawable.card5));
       images.add(getResources().getDrawable(R.drawable.card6));
       images.add(getResources().getDrawable(R.drawable.card7));
       images.add(getResources().getDrawable(R.drawable.card8));
       images.add(getResources().getDrawable(R.drawable.card9));
       images.add(getResources().getDrawable(R.drawable.card10));
       images.add(getResources().getDrawable(R.drawable.card11));
       images.add(getResources().getDrawable(R.drawable.card12));
       images.add(getResources().getDrawable(R.drawable.card13));
       images.add(getResources().getDrawable(R.drawable.card14));
       images.add(getResources().getDrawable(R.drawable.card15));
       images.add(getResources().getDrawable(R.drawable.card16));
       images.add(getResources().getDrawable(R.drawable.card17));
       images.add(getResources().getDrawable(R.drawable.card18));
       images.add(getResources().getDrawable(R.drawable.card19));
       images.add(getResources().getDrawable(R.drawable.card20));
       images.add(getResources().getDrawable(R.drawable.card21));
      
   }

   private void loadCards(){
      try{
          int size = ROW_COUNT*COL_COUNT;
          
          Log.i("loadCards()","size=" + size);
          
          ArrayList<Integer> list = new ArrayList<Integer>();
          
          for(int i=0;i<size;i++){
             list.add(new Integer(i));
          }
          
          
          Random r = new Random();
       
          for(int i=size-1;i>=0;i--){
             int t=0;
             
             if(i>0){
                t = r.nextInt(i);
             }
             
             t=list.remove(t).intValue();
             cards[i%COL_COUNT][i/COL_COUNT]=t%(size/2);
             
             Log.i("loadCards()", "card["+(i%COL_COUNT)+
                   "]["+(i/COL_COUNT)+"]=" + cards[i%COL_COUNT][i/COL_COUNT]);
          }
       }
      catch (Exception e) {
         Log.e("loadCards()", e+"");
      }
      
    }
    
    private TableRow createRow(int y){
        TableRow row = new TableRow(context);
        row.setHorizontalGravity(Gravity.CENTER);
         
         for (int x = 0; x < COL_COUNT; x++) {
               row.addView(createImageButton(x,y));
         }
         return row;
    }
    
    private View createImageButton(int x, int y){
       Button button = new Button(context);
       button.setBackgroundDrawable(backImage);
       button.setId(100*x+y);
       button.setOnClickListener(buttonListener);
       return button;
    }
    
    class ButtonListener implements OnClickListener {

      @Override
      public void onClick(View v) {
         
         synchronized (lock) {
            if(firstCard!=null && seconedCard != null){
               return;
            }
            int id = v.getId();
            int x = id/100;
            int y = id%100;
            if(turns > 18){
               Toast.makeText(Manager.this,"Lost the game",Toast.LENGTH_SHORT).show();
               Intent intent = new Intent(Manager.this,MainActivity.class);
               startActivity(intent);
            }else{
               turnCard((Button)v,x,y);
            }

         }
         
      }

      private void turnCard(Button button,int x, int y) {
         button.setBackgroundDrawable(images.get(cards[x][y]));
         
         if(firstCard==null){
            firstCard = new Card(button,x,y);
         }
         else{ 
            
            if(firstCard.x == x && firstCard.y == y){
               return; //the user pressed the same card
            }
               
            seconedCard = new Card(button,x,y);
            
            turns++;
            ((TextView)findViewById(R.id.tv1)).setText("Tries: "+turns);
            
         
            TimerTask tt = new TimerTask() {
               
               @Override
               public void run() {
                  try{
                     synchronized (lock) {
                       handler.sendEmptyMessage(0);
                     }
                  }
                  catch (Exception e) {
                     Log.e("E1", e.getMessage());
                  }
               }
            };
            
              Timer t = new Timer(false);
                 t.schedule(tt, 1300);
         }
         
            
         }
         
      }
    
    class UpdateCardsHandler extends Handler{
       
       @Override
       public void handleMessage(Message msg) {
          synchronized (lock) {
             checkCards();
          }
       }
        public void checkCards(){
              if(cards[seconedCard.x][seconedCard.y] == cards[firstCard.x][firstCard.y]){
                firstCard.button.setVisibility(View.INVISIBLE);
                seconedCard.button.setVisibility(View.INVISIBLE);
             }
             else {
                seconedCard.button.setBackgroundDrawable(backImage);
                firstCard.button.setBackgroundDrawable(backImage);
             }
              
              firstCard=null;
             seconedCard=null;
           }
    }
    
   
    
    
}

Manager activity xml :

<?xml version="1.0" encoding="utf-8"?>

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/TableLayout03"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">


    <TableRow
        android:id="@+id/TableRow04"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center">


    </TableRow>

    <TableRow
        android:id="@+id/TableRow05"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/tv1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:paddingLeft="10sp">

        </TextView>
    </TableRow>

    <TableRow
        android:id="@+id/TableRow01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="center">


    </TableRow>

    <TableRow
        android:id="@+id/TableRow02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center">


    </TableRow>

    <TableRow
        android:id="@+id/TableRow03"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center">


    </TableRow>


</TableLayout>

Card Java file :

import android.widget.Button;


public class Card{

   public int x;
   public int y;
   public Button button;
   
   public Card(Button button, int x,int y) {
      this.x = x;
      this.y=y;
      this.button=button;
   }
   

}

Android Manifest file :

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.aviy.samplememory"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name="com.aviy.samplememory.MainActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="com.aviy.samplememory.Manager"></activity>

    </application>
    <uses-sdk android:minSdkVersion="2" />

</manifest>