如何匹配Android中聲音對應的圖像？

Question

這是我的java編碼..請幫助我..我正在爲兒童做一個項目。

package com.VRG; 

import java.util.ArrayList; 
import java.util.List; 
import java.util.Random; 
import android.app.Activity; 
import android.app.AlertDialog; 
import android.content.DialogInterface; 
import android.media.MediaPlayer; 
import android.media.MediaPlayer.OnCompletionListener; 
import android.os.Bundle; 
import android.os.CountDownTimer; 
import android.util.Log; 
import android.view.KeyEvent; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.ImageView; 
import android.widget.TextView; 
import android.widget.Toast; 

public class Animalsgame extends Activity implements OnClickListener { 
    // int answer=0; 
    Button voice; 
    MediaPlayer mp; 
    TextView time;// count down timer 
    ImageView img_view1; 
    ImageView img_view2; 
    ImageView img_view3; 
    ImageView img_view4; 
    static int index = 0; 
    static int index1 = 0; 
    static int noOfLapse; 
    static int count = 0; 
    static boolean isSoundPlay; 
    CountDownTimer CountDownTimer; 
    int idx; 
    Integer next; 
    int temp1, temp2; 

    private Random random; 
    private ArrayList<MediaPlayer> sounds; 
    private ArrayList<MediaPlayer> tempSounds; 

    final int[] imageViews = { R.id.img_view1, R.id.img_view2, R.id.img_view3, 
      R.id.img_view4 };// Array of image views 

    int[] Animals_images = { R.drawable.cow, R.drawable.lion, R.drawable.dog, 
      R.drawable.sheep, R.drawable.elephant, R.drawable.camel, 
      R.drawable.rhinos, R.drawable.horse, R.drawable.donkey, 
      R.drawable.wolves }; // Array of Animal images 

    String Animals_images_string[] = { "cow", "lion", "dog", "sheep", 
      "elephant", "camel" }; 

    String mfile_sounds_string[] = { "cow", "lion", "dog", "sheep", "elephant", 
      "camel" }; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.game); 

     time = (TextView) this.findViewById(R.id.time); 
     img_view1 = (ImageView) this.findViewById(R.id.img_view1); 
     img_view2 = (ImageView) this.findViewById(R.id.img_view2); 
     img_view3 = (ImageView) this.findViewById(R.id.img_view3); 
     img_view4 = (ImageView) this.findViewById(R.id.img_view4); 

     img_view1.setOnClickListener(this); 
     img_view2.setOnClickListener(this); 
     img_view3.setOnClickListener(this); 
     img_view4.setOnClickListener(this); 

     // Count down timer 
     voice = (Button) this.findViewById(R.id.voice);// Animals sounds 

     voice.setOnClickListener(this); 

     // Initialise Lapse counter 
     noOfLapse = 0; 
     isSoundPlay = true; 

     random = new Random(); 

     sounds = new ArrayList<MediaPlayer>(); 
     sounds.add(MediaPlayer.create(this, R.raw.cow)); 
     sounds.add(MediaPlayer.create(this, R.raw.lion)); 
     sounds.add(MediaPlayer.create(this, R.raw.dog)); 
     sounds.add(MediaPlayer.create(this, R.raw.sheep)); 
     sounds.add(MediaPlayer.create(this, R.raw.elephant)); 
     sounds.add(MediaPlayer.create(this, R.raw.camel)); 

     tempSounds = (ArrayList<MediaPlayer>) sounds.clone(); 

     enableDisableImageView(false); 

    }// End of Oncreate method 

    public void setDuration(int duration) { 

    } 

    @Override 
    public void onClick(View v) { 
     enableDisableImageView(true); 

     if (v == img_view1) { 

      if (mp != null) { 
       if (mp.isPlaying()) { 
        mp.stop(); 
       } 
      } 
      count++; 
      time.setText(""); 
      if (CountDownTimer != null) { 
       CountDownTimer.cancel(); 
      } 
      enableDisableButton(true); 
     } 
     if (v == voice) { 
      loadImages(); 
      // answer++; 
      freezeButtonAndPlaySoundThenUnfreezeButton(); 
      countDown(); 
      // enableDisableButton(true); 
     } 

     if (v == img_view2) { 
      if (mp != null) { 
       if (mp.isPlaying()) { 
        mp.stop(); 
       } 
      } 
      count++; 
      enableDisableButton(true); // Re-enable buttons 
     } else if (v == voice) { 
      loadImages(); 
      countDown(); 
      enableDisableButton(false); 
     } 

     if (v == img_view3) { 
      if (mp != null) { 
       if (mp.isPlaying()) { 
        mp.stop(); 
       } 
      } 
      count++; 
      enableDisableButton(true); // Re-enable buttons 
     } else if (v == voice) { 
      loadImages(); 
      countDown(); 
      enableDisableButton(false); 
     } 

     if (v == img_view4) { 
      if (mp != null) { 
       if (mp.isPlaying()) { 
        mp.stop(); 
       } 
      } 
      count++; 
      enableDisableButton(true); // Re-enable buttons 
     } else if (v == voice) { 
      loadImages(); 
      countDown(); 
      enableDisableButton(false); 
     } 

     if (count > 4) { 
      AlertDialog.Builder alertbox = new AlertDialog.Builder(this); 
      setDuration(0); 
      mp = MediaPlayer.create(this, R.raw.claps); 
      if (mp != null) { 
       if (mp.isPlaying()) { 
        mp.stop(); 
       } 
      } 
      mp.start(); 
      Toast.makeText(getApplicationContext(), "Your Score : " + count, 
        Toast.LENGTH_SHORT).show(); 
      // set the message to display 
      alertbox.setMessage("Game Over..! Do you want to play again?"); 
      // set a positive/yes button and create a listener 
      alertbox.setPositiveButton("Yes", 
        new DialogInterface.OnClickListener() { 

         // do something when the button is clicked 
         public void onClick(DialogInterface arg0, int arg1) { 
          if (mp != null) { 
           if (mp.isPlaying()) { 
            mp.stop(); 
           } 
          } 
          count = 0; 
          // Intent i = new Intent(VRGActivity2.this, 
          // VRGActivity2.class); 
          // startActivity(i); 
          finish(); 
         } 
        }); 

      // set a negative/no button and create a listener 
      alertbox.setNegativeButton("No", 
        new DialogInterface.OnClickListener() { 

         // do something when the button is clicked 
         public void onClick(DialogInterface arg0, int arg1) { 
          if (mp != null) { 
           if (mp.isPlaying()) { 
            mp.stop(); 
           } 
          } 
          finish(); 
          // Intent i = new Intent(VRGActivity2.this, 
          // VRGActivity1.class); 
          // startActivity(i); 

         } 
        }); 

      // display box 
      alertbox.show(); 
      enableDisableButton(false); 
     } 
    }// End of voice on click 

    private void countDown() { 

     CountDownTimer = new CountDownTimer(6000, 10000) { 

      public void onTick(long millisUntilFinished) { 
       if (isSoundPlay) { 
        // freezeButtonAndPlaySoundThenUnfreezeButton(); 
        isSoundPlay = false; 
       } 
       time.setText("" + "" + millisUntilFinished/10000); 

      } 

      public void onFinish() { 

       // time.setText("UP"); 
       setDuration(0); 
       // Toast.makeText(getApplicationContext(), "Time Up", 
       // Toast.LENGTH_SHORT).show(); 

       isSoundPlay = true; 

      }// End of on finish 
     }.start(); // End of countDown Constructor 
    }// End of countDown method 

    public void enableDisableButton(Boolean state) { 
     voice.setEnabled(state); 

    } 

    public void enableDisableImageView(Boolean state) { 
     img_view1.setEnabled(state); 
     img_view2.setEnabled(state); 
     img_view3.setEnabled(state); 
     img_view4.setEnabled(state); 
    } 

    private void loadImages() { 
     // img_view1.setImageResource(Compulsory_Animals_images[answer]); 

     Random rng = new Random(); // Random function 
     List<Integer> generated = new ArrayList<Integer>(); 
     for (int i = 0; i < 4; i++) { 
      while (true) { 
       next = rng.nextInt(9); 
       index = next; 
       if (!generated.contains(next)) { 
        generated.add(next); 
        ImageView iv = (ImageView) findViewById(imageViews[i]); 
        iv.setImageResource(Animals_images[next]); 

        break; 
       }// End of if 
      }// While loop 
     }// End of for loop 
    } 

    public void freezeButtonAndPlaySoundThenUnfreezeButton() { 
     enableDisableButton(false); // disable buttons 
     int randomInt = random.nextInt(tempSounds.size()); 
     mp = tempSounds.get(randomInt); 

     // Toast.makeText(getApplicationContext(), "Index: "+sound_index, 
     // Toast.LENGTH_SHORT).show(); 
     temp1 = randomInt; 
     temp2 = temp1; 
     tempSounds.remove(randomInt); 
     temp1 = temp2; 
     mp.seekTo(0); 
     mp.start(); 
     mp.setOnCompletionListener(new OnCompletionListener() { 

      @Override 
      public void onCompletion(MediaPlayer mpalmost) { 
       // mpalmost.release(); 
      } 
     }); 

    } 

    @Override 
    // while back pressed the task is refreshed 
    public void onBackPressed() { 
     Log.v("44444", "onBackPressed Called"); 
     if (mp != null) { 
      if (mp.isPlaying()) { 
       mp.stop(); 
      } 
     } 
    } 

    @Override 
    protected void onPause() { 
     super.onPause(); 
     // saveState(); 
     Log.v("11111111", "onPause Called"); 

    } 

    @Override 
    protected void onStart() { 
     super.onStart(); 
     Log.v("111111", "onStart Called"); 

    } 

    @Override 
    protected void onResume() { 
     super.onResume(); 
     Log.v("222222", "onResume Called"); 

     // freezeButtonAndPlaySoundThenUnfreezeButton(); 

    } 

    @Override 
    // if key down happens 
    public boolean onKeyDown(int keyCode, KeyEvent event) { 
     { 
      Log.d("333333", "onKeyDown Called"); 
      onBackPressed(); 
      finish(); 
      // calling the OnBackpressed method called 
     } 

     return true; 
    } 

}// } 

我使用四個圖像視圖和一個聲音按鈕。 其中，如果我點擊聲音按鈕隨機聲音 得到提高，並突然四個圖像視圖將 由四個隨機獲得的圖像填充。 現在我必須匹配聲音對應的聲音。

Answer 1

當我說散列，我不是說你必須設置散列表。這不是一個輕量級的解決方案。 「散列」意味着您必須在這兩個值組之間建立關係。在這裏，在Android上，每一個資源已經被編譯在R級的ID，您可以使用兩個int [] variables.I.e：

//keeps the element at the same position matching. 
final int[] animals = new Int[]{R.drawable.cow, R.drawable.lion, ...}; 
final int[] sounds = new Int[] {R.raw.cow,R.raw.lion, ...}; 

當孩子按下按鈕，你會得到一個隨機的聲音文件ID。即

int index = new Random.nextInt(0,TOTAL_RESOURCE_NUMBER); 

現在播放聲音「MediaPlayer.create（sounds [index]）;」 將正確的imageView鏈接到該索引。 int imageIndex = new Random(0,4); imageViews[imageIndex].setDrawable(animals[index]);

現在你知道imageView與imageIndex是我們想要的imageView，你可以檢查。