我的问题是当用户按下后面或主页按钮时如何停止媒体播放器？以下是代码。有人可以给一个代码，并告诉我在活动中将其纳入何处。帮助将不胜感激。
package com.example.dictationary;
import java.util.LinkedList;
import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class Level1 extends Activity {
final LinkedList<Word> wordList = new LinkedList<Word>();
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.level1);
MediaPlayer n1 = MediaPlayer.create(this,R.raw.assassin);
MediaPlayer n2 = MediaPlayer.create(this,R.raw.accessible);
MediaPlayer n3 = MediaPlayer.create(this,R.raw.bashfully);
MediaPlayer n4 = MediaPlayer.create(this,R.raw.blistering);
MediaPlayer n5 = MediaPlayer.create(this,R.raw.butter);
MediaPlayer n6 = MediaPlayer.create(this,R.raw.campaign);
MediaPlayer n7 = MediaPlayer.create(this,R.raw.circumstances);
MediaPlayer n8 = MediaPlayer.create(this,R.raw.clinching);
MediaPlayer n9 = MediaPlayer.create(this,R.raw.deferential);
MediaPlayer n10 = MediaPlayer.create(this,R.raw.distinguished);
MediaPlayer n11 = MediaPlayer.create(this,R.raw.embarrass);
MediaPlayer n12 = MediaPlayer.create(this,R.raw.etiquette);
MediaPlayer n13 = MediaPlayer.create(this,R.raw.fatigue);
MediaPlayer n14 = MediaPlayer.create(this,R.raw.feasible);
MediaPlayer n15 = MediaPlayer.create(this,R.raw.glitch);
MediaPlayer n16 = MediaPlayer.create(this,R.raw.graffiti);
MediaPlayer n17 = MediaPlayer.create(this,R.raw.hippopotamus);
MediaPlayer n18 = MediaPlayer.create(this,R.raw.hypocrisy);
MediaPlayer n19 = MediaPlayer.create(this,R.raw.illegible);
MediaPlayer n20 = MediaPlayer.create(this,R.raw.illiteracy);
MediaPlayer n21 = MediaPlayer.create(this,R.raw.jaundice);
MediaPlayer n22 = MediaPlayer.create(this,R.raw.kidnapped);
MediaPlayer n23 = MediaPlayer.create(this,R.raw.kinetic);
MediaPlayer n24 = MediaPlayer.create(this,R.raw.laboratory);
MediaPlayer n25 = MediaPlayer.create(this,R.raw.lacrimation);
MediaPlayer n26 = MediaPlayer.create(this,R.raw.macaroni);
MediaPlayer n27 = MediaPlayer.create(this,R.raw.maintenance);
MediaPlayer n28 = MediaPlayer.create(this,R.raw.mediocre);
MediaPlayer n29 = MediaPlayer.create(this,R.raw.metaphor);
MediaPlayer n30 = MediaPlayer.create(this,R.raw.nocturnal);
MediaPlayer n31 = MediaPlayer.create(this,R.raw.nutritious);
MediaPlayer n32 = MediaPlayer.create(this,R.raw.obligatory);
MediaPlayer n33 = MediaPlayer.create(this,R.raw.oblique);
MediaPlayer n34 = MediaPlayer.create(this,R.raw.opaque);
MediaPlayer n35 = MediaPlayer.create(this,R.raw.pageant);
MediaPlayer n36 = MediaPlayer.create(this,R.raw.personnel);
MediaPlayer n37 = MediaPlayer.create(this,R.raw.quartz);
MediaPlayer n38 = MediaPlayer.create(this,R.raw.quash);
MediaPlayer n39 = MediaPlayer.create(this,R.raw.racquetball);
MediaPlayer n40 = MediaPlayer.create(this,R.raw.recommend);
MediaPlayer n41 = MediaPlayer.create(this,R.raw.rhyme);
MediaPlayer n42 = MediaPlayer.create(this,R.raw.schedule);
MediaPlayer n43 = MediaPlayer.create(this,R.raw.souvenir);
MediaPlayer n44 = MediaPlayer.create(this,R.raw.strength);
MediaPlayer n45 = MediaPlayer.create(this,R.raw.tombstone);
MediaPlayer n46 = MediaPlayer.create(this,R.raw.tricycle);
MediaPlayer n47 = MediaPlayer.create(this,R.raw.unanswerable);
MediaPlayer n48 = MediaPlayer.create(this,R.raw.unconscious);
MediaPlayer n49 = MediaPlayer.create(this,R.raw.vacuum);
MediaPlayer n50 = MediaPlayer.create(this,R.raw.villain);
MediaPlayer n51 = MediaPlayer.create(this,R.raw.weigh);
MediaPlayer n52 = MediaPlayer.create(this,R.raw.weird);
MediaPlayer n53 = MediaPlayer.create(this,R.raw.yacht);
MediaPlayer n54 = MediaPlayer.create(this,R.raw.yolk);
MediaPlayer n55 = MediaPlayer.create(this,R.raw.aberration);
MediaPlayer n56 = MediaPlayer.create(this,R.raw.abject);
MediaPlayer n57 = MediaPlayer.create(this,R.raw.abrogation);
MediaPlayer n58 = MediaPlayer.create(this,R.raw.atrophy);
MediaPlayer n59 = MediaPlayer.create(this,R.raw.blandishment);
MediaPlayer n60 = MediaPlayer.create(this,R.raw.contentious);
MediaPlayer n61 = MediaPlayer.create(this,R.raw.dogmatic);
MediaPlayer n62 = MediaPlayer.create(this,R.raw.embezzlement);
MediaPlayer n63 = MediaPlayer.create(this,R.raw.engender);
MediaPlayer n64 = MediaPlayer.create(this,R.raw.fallacious);
MediaPlayer n65 = MediaPlayer.create(this,R.raw.fatuous);
MediaPlayer n66 = MediaPlayer.create(this,R.raw.flagrant);
MediaPlayer n67 = MediaPlayer.create(this,R.raw.fortuitous);
MediaPlayer n68 = MediaPlayer.create(this,R.raw.impetuous);
MediaPlayer n69 = MediaPlayer.create(this,R.raw.inexorable);
MediaPlayer n70 = MediaPlayer.create(this,R.raw.inveterate);
MediaPlayer n71 = MediaPlayer.create(this,R.raw.irreverence);
MediaPlayer n72 = MediaPlayer.create(this,R.raw.mendacious);
MediaPlayer n73 = MediaPlayer.create(this,R.raw.multifarious);
MediaPlayer n74 = MediaPlayer.create(this,R.raw.munificent);
MediaPlayer n75 = MediaPlayer.create(this,R.raw.paradigm);
MediaPlayer n76 = MediaPlayer.create(this,R.raw.plaudit);
MediaPlayer n77 = MediaPlayer.create(this,R.raw.proclivity);
MediaPlayer n78 = MediaPlayer.create(this,R.raw.promulgate);
MediaPlayer n79 = MediaPlayer.create(this,R.raw.reprobate);
MediaPlayer n80 = MediaPlayer.create(this,R.raw.surreptitious);
MediaPlayer n81 = MediaPlayer.create(this,R.raw.tirade);
MediaPlayer n82 = MediaPlayer.create(this,R.raw.umbrage);
MediaPlayer n83 = MediaPlayer.create(this,R.raw.veracity);
MediaPlayer n84 = MediaPlayer.create(this,R.raw.virtuoso);
MediaPlayer n85 = MediaPlayer.create(this,R.raw.vitriolic);
Word w1 = new Word(R.raw.assassin,"assassin");
Word w2 = new Word(R.raw.accessible,"accessible");
Word w3 = new Word(R.raw.bashfully,"bashfully");
Word w4 = new Word(R.raw.blistering,"blistering");
Word w5 = new Word(R.raw.butter,"butter");
Word w6 = new Word(R.raw.campaign,"campaign");
Word w7 = new Word(R.raw.circumstances,"circumstances");
Word w8 = new Word(R.raw.clinching,"clinching");
Word w9 = new Word(R.raw.deferential,"deferential");
Word w10 = new Word(R.raw.distinguished,"distinguished");
Word w11 = new Word(R.raw.embarrass,"embarrass");
Word w12 = new Word(R.raw.etiquette,"etiquette");
Word w13 = new Word(R.raw.fatigue,"fatigue");
Word w14 = new Word(R.raw.feasible,"feasible");
Word w15 = new Word(R.raw.glitch,"glitch");
Word w16 = new Word(R.raw.graffiti,"graffiti");
Word w17 = new Word(R.raw.hippopotamus,"hippopotamus");
Word w18 = new Word(R.raw.hypocrisy,"hypocrisy");
Word w19 = new Word(R.raw.illegible,"illegible");
Word w20 = new Word(R.raw.illiteracy,"illiteracy");
Word w21 = new Word(R.raw.jaundice,"jaundice");
Word w22 = new Word(R.raw.kidnapped,"kidnapped");
Word w23 = new Word(R.raw.kinetic,"kinetic");
Word w24 = new Word(R.raw.laboratory,"laboratory");
Word w25 = new Word(R.raw.lacrimation,"lacrimation");
Word w26 = new Word(R.raw.macaroni,"macaroni");
Word w27 = new Word(R.raw.maintenance,"maintenance");
Word w28 = new Word(R.raw.mediocre,"mediocre");
Word w29 = new Word(R.raw.metaphor,"metaphor");
Word w30 = new Word(R.raw.nocturnal,"nocturnal");
Word w31 = new Word(R.raw.nutritious,"nutritious");
Word w32 = new Word(R.raw.obligatory,"obligatory");
Word w33 = new Word(R.raw.oblique,"oblique");
Word w34 = new Word(R.raw.opaque,"opaque");
Word w35 = new Word(R.raw.pageant,"pageant");
Word w36 = new Word(R.raw.personnel,"personnel");
Word w37 = new Word(R.raw.quartz,"quartz");
Word w38 = new Word(R.raw.quash,"quash");
Word w39 = new Word(R.raw.racquetball,"racquetball");
Word w40 = new Word(R.raw.recommend,"recommend");
Word w41 = new Word(R.raw.rhyme,"rhyme");
Word w42 = new Word(R.raw.schedule,"schedule");
Word w43 = new Word(R.raw.souvenir,"souvenir");
Word w44 = new Word(R.raw.strength,"strength");
Word w45 = new Word(R.raw.tombstone,"tombstone");
Word w46 = new Word(R.raw.tricycle,"tricycle");
Word w47 = new Word(R.raw.unanswerable,"unanswerable");
Word w48 = new Word(R.raw.unconscious,"unconscious");
Word w49 = new Word(R.raw.vacuum,"vacuum");
Word w50 = new Word(R.raw.villain,"villain");
Word w51 = new Word(R.raw.weigh,"weigh");
Word w52 = new Word(R.raw.weird,"weird");
Word w53 = new Word(R.raw.yacht,"yacht");
Word w54 = new Word(R.raw.yolk,"yolk");
Word w55 = new Word(R.raw.aberration,"aberration");
Word w56 = new Word(R.raw.abject,"abject");
Word w57 = new Word(R.raw.abrogation,"abrogation");
Word w58 = new Word(R.raw.atrophy,"atrophy");
Word w59 = new Word(R.raw.blandishment,"blandishment");
Word w60 = new Word(R.raw.contentious,"contentious");
Word w61 = new Word(R.raw.dogmatic,"dogmatic");
Word w62 = new Word(R.raw.embezzlement,"embezzlement");
Word w63 = new Word(R.raw.engender,"engender");
Word w64 = new Word(R.raw.fallacious,"fallacious");
Word w65 = new Word(R.raw.fatuous,"fatuous");
Word w66 = new Word(R.raw.flagrant,"flagrant");
Word w67 = new Word(R.raw.fortuitous,"fortuitous");
Word w68 = new Word(R.raw.impetuous,"impetuous");
Word w69 = new Word(R.raw.inexorable,"inexorable");
Word w70 = new Word(R.raw.inveterate,"inveterate");
Word w71 = new Word(R.raw.irreverence,"irreverence");
Word w72 = new Word(R.raw.mendacious,"mendacious");
Word w73 = new Word(R.raw.multifarious,"multifarious");
Word w74 = new Word(R.raw.munificent,"munificent");
Word w75 = new Word(R.raw.paradigm,"paradigm");
Word w76 = new Word(R.raw.plaudit,"plaudit");
Word w77 = new Word(R.raw.proclivity,"proclivity");
Word w78 = new Word(R.raw.promulgate,"promulgate");
Word w79 = new Word(R.raw.reprobate,"reprobate");
Word w80 = new Word(R.raw.surreptitious,"surreptitious");
Word w81 = new Word(R.raw.tirade,"tirade");
Word w82 = new Word(R.raw.umbrage,"umbrage");
Word w83 = new Word(R.raw.veracity,"veracity");
Word w84 = new Word(R.raw.virtuoso,"virtuoso");
Word w85 = new Word(R.raw.vitriolic,"vitriolic");
wordList.add(w1);
wordList.add(w2);
wordList.add(w3);
wordList.add(w4);
wordList.add(w5);
wordList.add(w6);
wordList.add(w7);
wordList.add(w8);
wordList.add(w9);
wordList.add(w10);
wordList.add(w11);
wordList.add(w12);
wordList.add(w13);
wordList.add(w14);
wordList.add(w15);
wordList.add(w16);
wordList.add(w17);
wordList.add(w18);
wordList.add(w19);
wordList.add(w20);
wordList.add(w21);
wordList.add(w22);
wordList.add(w23);
wordList.add(w24);
wordList.add(w25);
wordList.add(w26);
wordList.add(w27);
wordList.add(w28);
wordList.add(w29);
wordList.add(w30);
wordList.add(w31);
wordList.add(w32);
wordList.add(w33);
wordList.add(w34);
wordList.add(w35);
wordList.add(w36);
wordList.add(w37);
wordList.add(w38);
wordList.add(w39);
wordList.add(w40);
wordList.add(w41);
wordList.add(w42);
wordList.add(w43);
wordList.add(w44);
wordList.add(w45);
wordList.add(w46);
wordList.add(w47);
wordList.add(w48);
wordList.add(w49);
wordList.add(w50);
wordList.add(w51);
wordList.add(w52);
wordList.add(w53);
wordList.add(w54);
wordList.add(w55);
wordList.add(w56);
wordList.add(w57);
wordList.add(w58);
wordList.add(w59);
wordList.add(w60);
wordList.add(w61);
wordList.add(w62);
wordList.add(w63);
wordList.add(w64);
wordList.add(w65);
wordList.add(w66);
wordList.add(w67);
wordList.add(w68);
wordList.add(w69);
wordList.add(w70);
wordList.add(w71);
wordList.add(w72);
wordList.add(w73);
wordList.add(w74);
wordList.add(w75);
wordList.add(w76);
wordList.add(w77);
wordList.add(w78);
wordList.add(w79);
wordList.add(w80);
wordList.add(w81);
wordList.add(w82);
wordList.add(w83);
wordList.add(w84);
wordList.add(w85);
final LinkedList<MediaPlayer> list = new LinkedList<MediaPlayer>();
list.add( n1 = MediaPlayer.create(this,R.raw.assassin));
list.add( n2 = MediaPlayer.create(this,R.raw.bashfully));
list.add( n3 = MediaPlayer.create(this,R.raw.accessible));
list.add( n4 = MediaPlayer.create(this,R.raw.blistering));
list.add( n5 = MediaPlayer.create(this,R.raw.butter));
list.add( n6 = MediaPlayer.create(this,R.raw.campaign));
list.add( n7 = MediaPlayer.create(this,R.raw.circumstances));
list.add( n8 = MediaPlayer.create(this,R.raw.clinching));
list.add( n9 = MediaPlayer.create(this,R.raw.deferential));
list.add( n10 = MediaPlayer.create(this,R.raw.distinguished));
list.add( n11 = MediaPlayer.create(this,R.raw.embarrass));
list.add( n12 = MediaPlayer.create(this,R.raw.etiquette));
list.add( n13 = MediaPlayer.create(this,R.raw.fatigue));
list.add( n14 = MediaPlayer.create(this,R.raw.feasible));
list.add( n15 = MediaPlayer.create(this,R.raw.glitch));
list.add( n16 = MediaPlayer.create(this,R.raw.graffiti));
list.add( n17 = MediaPlayer.create(this,R.raw.hippopotamus));
list.add( n18 = MediaPlayer.create(this,R.raw.hypocrisy));
list.add( n19 = MediaPlayer.create(this,R.raw.illegible));
list.add( n20 = MediaPlayer.create(this,R.raw.illiteracy));
list.add( n21 = MediaPlayer.create(this,R.raw.jaundice));
list.add( n22 = MediaPlayer.create(this,R.raw.kidnapped));
list.add( n23 = MediaPlayer.create(this,R.raw.kinetic));
list.add( n24 = MediaPlayer.create(this,R.raw.laboratory));
list.add( n25 = MediaPlayer.create(this,R.raw.lacrimation));
list.add( n26 = MediaPlayer.create(this,R.raw.macaroni));
list.add( n27 = MediaPlayer.create(this,R.raw.maintenance));
list.add( n28 = MediaPlayer.create(this,R.raw.mediocre));
list.add( n29 = MediaPlayer.create(this,R.raw.metaphor));
list.add( n30 = MediaPlayer.create(this,R.raw.nocturnal));
list.add( n31 = MediaPlayer.create(this,R.raw.nutritious));
list.add( n32 = MediaPlayer.create(this,R.raw.obligatory));
list.add( n33 = MediaPlayer.create(this,R.raw.oblique));
list.add( n34 = MediaPlayer.create(this,R.raw.opaque));
list.add( n35 = MediaPlayer.create(this,R.raw.pageant));
list.add( n36 = MediaPlayer.create(this,R.raw.personnel));
list.add( n37 = MediaPlayer.create(this,R.raw.quartz));
list.add( n38 = MediaPlayer.create(this,R.raw.quash));
list.add( n39 = MediaPlayer.create(this,R.raw.racquetball));
list.add( n40 = MediaPlayer.create(this,R.raw.recommend));
list.add( n41 = MediaPlayer.create(this,R.raw.rhyme));
list.add( n42 = MediaPlayer.create(this,R.raw.schedule));
list.add( n43 = MediaPlayer.create(this,R.raw.souvenir));
list.add( n44 = MediaPlayer.create(this,R.raw.strength));
list.add( n45 = MediaPlayer.create(this,R.raw.tombstone));
list.add( n46 = MediaPlayer.create(this,R.raw.tricycle));
list.add( n47 = MediaPlayer.create(this,R.raw.unanswerable));
list.add( n48 = MediaPlayer.create(this,R.raw.unconscious));
list.add( n49 = MediaPlayer.create(this,R.raw.vacuum));
list.add( n50 = MediaPlayer.create(this,R.raw.villain));
list.add( n51 = MediaPlayer.create(this,R.raw.weigh));
list.add( n52 = MediaPlayer.create(this,R.raw.weird));
list.add( n53 = MediaPlayer.create(this,R.raw.yacht));
list.add( n54 = MediaPlayer.create(this,R.raw.yolk));
list.add( n55 = MediaPlayer.create(this,R.raw.aberration));
list.add( n56 = MediaPlayer.create(this,R.raw.abject));
list.add( n57 = MediaPlayer.create(this,R.raw.abrogation));
list.add( n58 = MediaPlayer.create(this,R.raw.atrophy));
list.add( n59 = MediaPlayer.create(this,R.raw.blandishment));
list.add( n60 = MediaPlayer.create(this,R.raw.contentious));
list.add( n61 = MediaPlayer.create(this,R.raw.dogmatic));
list.add( n62 = MediaPlayer.create(this,R.raw.embezzlement));
list.add( n63 = MediaPlayer.create(this,R.raw.engender));
list.add( n64 = MediaPlayer.create(this,R.raw.fallacious));
list.add( n65 = MediaPlayer.create(this,R.raw.fatuous));
list.add( n66 = MediaPlayer.create(this,R.raw.flagrant));
list.add( n67 = MediaPlayer.create(this,R.raw.fortuitous));
list.add( n68 = MediaPlayer.create(this,R.raw.impetuous));
list.add( n69 = MediaPlayer.create(this,R.raw.inexorable));
list.add( n70 = MediaPlayer.create(this,R.raw.inveterate));
list.add( n71 = MediaPlayer.create(this,R.raw.irreverence));
list.add( n72 = MediaPlayer.create(this,R.raw.mendacious));
list.add( n73 = MediaPlayer.create(this,R.raw.multifarious));
list.add( n74 = MediaPlayer.create(this,R.raw.munificent));
list.add( n75 = MediaPlayer.create(this,R.raw.paradigm));
list.add( n76 = MediaPlayer.create(this,R.raw.plaudit));
list.add( n77 = MediaPlayer.create(this,R.raw.proclivity));
list.add( n78 = MediaPlayer.create(this,R.raw.promulgate));
list.add( n79 = MediaPlayer.create(this,R.raw.reprobate));
list.add( n80 = MediaPlayer.create(this,R.raw.surreptitious));
list.add( n81 = MediaPlayer.create(this,R.raw.tirade));
list.add( n82 = MediaPlayer.create(this,R.raw.umbrage));
list.add( n83 = MediaPlayer.create(this,R.raw.veracity));
list.add( n84 = MediaPlayer.create(this,R.raw.virtuoso));
list.add( n85 = MediaPlayer.create(this,R.raw.vitriolic));
int count = wordList.size();
while(count>0){
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
nextWord();
}
}, 18000 * count);
--count;
}
}
public void nextWord(){
Random r = new Random();
final int pointer = r.nextInt(wordList.size());
final Word currentWord = wordList.remove(pointer);
MediaPlayer.create(this, currentWord.getMedia()).start();
//currentSentence.getMedia().start();
final EditText enteredText = (EditText) findViewById(R.id.editText2);
Button enterButton1 = (Button) findViewById(R.id.button);
//Toast.makeText(getApplicationContext(), "Text is "+ currentSentence.getSentence(), Toast.LENGTH_LONG).show();
enterButton1.setOnClickListener(new OnClickListener() {
private static final int LONG_DELAY = 3500;
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(enteredText.getText().toString().equalsIgnoreCase(currentWord.getWord()) ){
Toast.makeText(getApplicationContext(), "You got it right!", Toast.LENGTH_LONG).show();
((EditText) findViewById(R.id.editText2)).setText("");
}
else{
Toast.makeText(getApplicationContext(), "Wrong!", Toast.LENGTH_LONG).show();
Toast.makeText(getApplicationContext(), ""+ currentWord.getWord(), Toast.LENGTH_LONG).show();
((EditText) findViewById(R.id.editText2)).setText("");
//Toast.makeText(getApplicationContext(), enteredText.getText().toString() + " is not " + currentSentence.getSentence(), Toast.LENGTH_SHORT).show();
}
}
});
}
}
答案 0 :(得分：1)
如果您覆盖onPause()方法，则可以放置代码以停止MediaPlayers。它将执行whenever your Activity goes into the background.为了实现此功能，您可能需要将MediaPlayers声明为Level1活动的成员变量，而不是onCreate()中的本地变量。您还可以覆盖onResume()方法以恢复播放，如果您还希望这样做。
编辑：
onPause()是lifecycle method，类似于onCreate()。这意味着操作系统将在某些触发器之后调用该方法。在onPause()的情况下，每当Activity进入后台时都会发生这种情况，这就是当按下后退或回家时发生的情况。 onPause()的覆盖方式与onCreate()相同。
为了使onPause()对您的目的有用，它需要引用您要停止的MediaPlayers。您可以在活动级别存储这些引用，例如您放置wordList的位置，以便onCreate和onPause都可以访问它们。您的代码看起来像这样：
public class Level1 extends Activity
{
MediaPlayer n1, n2, n3; // ... Through n85. That's an awful lot of MediaPlayers, by the way.
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.level1);
n1 = MediaPlayer.create(this,R.raw.assassin);
// ...init all media players...
}
@Override
protected void onPause()
{
n1.pause();
n2.pause();
// ...pause all media players...
}
}
覆盖onResume()将以相同的方式工作，但请记住，当您的活动首次启动时，onResume()会被调用，因此请确保您的MediaPlayers不会以不正确的状态结束。希望这有帮助，如果您需要进一步解释，请告诉我。
答案 1 :(得分：0)
另一种选择是覆盖onBackPressed()并停止那里的媒体播放器。