我一直在尝试用声音进行爪哇语翻译。翻译结果显示成功，但声音不会出现。它抛出异常。
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)
它说我在第52行和第179行出错了，但我不知道是什么原因造成的。有谁能够帮我？这是代码：
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");
}
}
};
}
看到这个link这将帮助您解决您的问题。
我在我的项目中使用此代码来播放音频文件。我没有使用mediaPlayer.prepair（）;
看看这对你有帮助吗......
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();