Android MediaPlayerの準備ができません

Question

私は、サウンドとともに、ジャワ語の翻訳をしようとしています。翻訳結果は正常に表示されますが、音は出ません。例外をスローします。

Java.io.IOException: Prepare failed: status=0x1 
at android.media.MediaPlayer.prepare(Native Method) 
at com.cinta.jawa.JawaSearchActivity.playAudio(JawaSearchActivity.java:51) 
at com.cinta.jawa.JawaSearchActivity$1.onClick(JawaSearchActivity.java:178) 
at android.view.View.performClick(View.java:2408) 
at android.view.View$PerformClick.run(View.java:8816) 
at android.os.Handler.handleCallback(Handler.java:587) 
at android.os.Handler.dispatchMessage(Handler.java:92) 
at android.os.Looper.loop(Looper.java:123) 
at android.app.ActivityThread.main(ActivityThread.java:4627) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:521) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
at dalvik.system.NativeStart.main(Native Method) 

それは私がライン52および179で間違って得たことを言いますが、私はそれが間違って作るものは考えています。誰か助けてくれますか？

 

package com.cinta.jawa; 

import java.io.IOException; 
import java.util.ArrayList; 

import org.xmlpull.v1.XmlPullParserException; 

import android.app.Activity; 
import android.content.res.XmlResourceParser; 
import android.media.MediaPlayer; 
import android.media.MediaPlayer.OnCompletionListener; 
import android.net.Uri; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 

public class JawaSearchActivity extends Activity { 
    private EditText etSearch; 
    private TextView tvResult; 
    Jawa jawa = new Jawa(this); 

    boolean booSearch = false; 
    public static MediaPlayer myplayer = new MediaPlayer(); 
    public static ArrayList<Uri> pathlist = new ArrayList<Uri>(); 

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

     etSearch = (EditText) findViewById(R.id.editTextSearch); 
     tvResult = (TextView) findViewById(R.id.textViewResult); 

     Button btnSearch = (Button) findViewById(R.id.button_search); 
     btnSearch.setOnClickListener(onClickListener); 
    } 

    public void playAudio() { 
     try { 
      if (myplayer.isPlaying()) { 
       myplayer.stop(); 
       myplayer.release(); 
       } 
      if (pathlist.size() >= 1) { 
       for (int i = 0; i< pathlist.size();i++){ 
       Uri path = pathlist.get(i); 
       myplayer.setDataSource(this, path); 
       myplayer.prepare(); /*this is the error line*/ 
       myplayer.start(); 
       } 
      } 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
     myplayer.setLooping(true); 
    } 

    private String[] getWord(XmlResourceParser words, String strWord) 
      throws XmlPullParserException, IOException { 
     int eventType = -1; 

     String[] strReturn = new String[2]; 
     while (eventType != XmlResourceParser.END_DOCUMENT) { 
      if (eventType == XmlResourceParser.START_TAG) { 
       String strName = words.getName(); 
       if (strName.equals("word")) { 

        String wordValue = words.getAttributeValue(null, "key"); 
        if (wordValue.equalsIgnoreCase(strWord)) { 
         strReturn[0] = words.getAttributeValue(null, "file"); 
         strReturn[1] = words.getAttributeValue(null, 
           "translate"); 
         return strReturn; 
        } 

       } 
      } 
      eventType = words.next(); 
     } 
     return strReturn; 
    } 

    OnClickListener onClickListener = new OnClickListener() { 
     public void onClick(View v) { 
      XmlResourceParser jawaDictionary = getResources() 
        .getXml(R.xml.jawa); 

      String strWord[] = new String[2]; 
      String[] strNumb = null; 
      int intstrNumb = 0; 

      String angkaBo = null; 
      System.out.println("AWAL NIHH??" + angkaBo); 
      Long angka = null; 
      boolean booFind = false; 
      StringBuilder strbTranslate = new StringBuilder(); 
      myplayer.reset(); 
      myplayer.setOnCompletionListener(new OnCompletionListener() { 
       public void onCompletion(MediaPlayer arg0) { 
        for (int i = 0; i< pathlist.size();i++){ 
        pathlist.remove(i); 
        if (pathlist.size() >= 1) { 
         myplayer.reset(); 
         playAudio(); 
        } 
        } 
       } 
      }); 

      String strWords = etSearch.getText().toString().trim(); 
      String[] astrWord = strWords.split(" "); 
      int intCountWords = astrWord.length; 

      for (int i = 0; i < intCountWords; i++) { 
       try { 

        String perWord = astrWord[i].trim(); 
        int perWordL = perWord.length(); 
        for (int x = 0; x < perWordL; x++) { 
         if (Character.isDigit(perWord.charAt(x))) { 
          angka = Long.parseLong(perWord); 
         } 
        } 

        strWord = getWord(jawaDictionary, astrWord[i].trim()); 
        System.out.println("STRWORD NYE APAAN??" + strWord[0]); 
        jawaDictionary.close(); 
        jawaDictionary = getResources().getXml(R.xml.jawa); 
        if (strWord[0] != null) { 

         System.out.println("MASUK SINI GA SIHHHHHH??"); 
         strbTranslate.append(strWord[1]); 
         strbTranslate.append(" "); 

         System.out.println("COBA DILIAT " + strbTranslate); 

         System.out.println("KALOYANG INI?? " + pathlist); 
         tvResult.setText(strbTranslate); 
         booSearch = true; 

        } else { 
         System.out.println("MASUK MANA DONK??"); 
         if (angka != null) { 
          angkaBo = NumberScanActivity.convert(angka); 
          System.out.println("COBA LIAT INI MUNCUL GAKK??" 
            + angkaBo); 
          String angkaNih = angkaBo.trim(); 
          strNumb = angkaNih.split(" "); 
          System.out.println("HOHOHEHEHEHK??" + angkaNih); 
          System.out.println("BLUKUTUKKK??" + strNumb); 

          intstrNumb = strNumb.length; 
          for (int y = 0; y < intstrNumb; y++) { 
           System.out 
             .println("MASUK SINI KAGA?? HAYOOOOOO " 
               + strNumb[y]); 
           strbTranslate.append(strNumb[y]); 
           strbTranslate.append(" "); 
          } 
          tvResult.setText(strbTranslate); 
          booSearch = true; 
         } 
        } 

       } catch (Exception e) { 
       } 

      } 

      String fullText = strbTranslate.toString(); 
      pathlist = SyllableScanActivity.convertSentenceToSyl(fullText); 
      System.out.println("COBA LIAT ISI PATHLIS APAAN>>>>>> "+pathlist); 

      if (!myplayer.isPlaying()) { 
       playAudio(); /*this is the error line*/ 
      } 

      if (booFind == false) { 
       if (booSearch == false) 
        tvResult.setText("Sorry, No Result"); 
      } 

     } 
    }; 
    } 

Answer 1

このlinkこれはあなたの問題を解決するのに役立ちます参照してください：ここ はコードです。

私のプロジェクトでこのコードを使用してオーディオファイルを再生しています。私はmediaPlayer.prepair（）を使用していません。

bGSound = MediaPlayer.create(MusicPlay.this,R.drawable.music_ground); 
      float bGLeftVol = (float) (bGSoundVolume.getProgress()/100.0); 
      float bGRightVol = (float) (bGSoundVolume.getProgress()/100.0); 
      bGSound.setLooping(true); 
      bGSound.setVolume(bGLeftVol, bGRightVol); 
      bGSound.start();