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这是我的第一个自学项目.. 在 webview 的这个项目中，我正在播放我网站上的 Flash 视频......

我工作得很好......我的意思是它的播放音乐等在那方面没问题..

唯一的麻烦是当我有人打电话给媒体播放器时没有静音并且在谈话中我还在听音乐..

我想在通话或响铃模式下静音媒体音量..然后在通话结束后恢复...

这是我使用的代码（仅主要部分）

public void onAudioFocusChange(int focus) {
    //focus = audio.getMode();
    switch(focus){
    case AudioManager.MODE_RINGTONE :
        Pause();
        Toast.makeText(this, "PAUSE... RINGTONE", 15000).show(); //just need to see if this function really been called...
        break;
    case AudioManager.MODE_IN_CALL :
        Pause();
        Toast.makeText(this, "PAUSE.. IN CALL", 15000).show(); //just need to see if this function really been called...
        break;
    case AudioManager.MODE_IN_COMMUNICATION :
        Pause();
        Toast.makeText(this, "PAUSE... IN COMMUNICATION", 15000).show(); //just need to see if this function really been called...
        break;
    case AudioManager.MODE_NORMAL :
        Resume();
        Toast.makeText(this, "RESUME... NORMAL MODE", 15000).show(); //just need to see if this function really been called...
        break;   
    }       
}    
public void  Pause(){
    audio.setStreamSolo(AudioManager.STREAM_VOICE_CALL, true);
    audio.setMode(AudioManager.MODE_IN_CALL);
    audio.setStreamMute(AudioManager.STREAM_MUSIC, true); 

}
public void  Resume(){
    audio.setStreamSolo(AudioManager.STREAM_VOICE_CALL, false);
    audio.setMode(AudioManager.MODE_NORMAL);
    audio.setStreamMute(AudioManager.STREAM_MUSIC, false);   
}

我的活动课就像 

public class MyActivity extends Activity implements OnAudioFocusChangeListener, OnSeekBarChangeListener {

private static final String MY_AD_UNIT_ID = "a14xxxxx";
private AdView adView;
private WebView myWebView;
private AudioManager audio;
private SeekBar sb;
private int result = AudioManager.MODE_NORMAL;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    audio =(AudioManager) MyActivity.this.getSystemService(Context.AUDIO_SERVICE);
    //result = AudioManager.MODE_NORMAL;
    result = audio.requestAudioFocus(this, AudioManager.STREAM_MUSIC,          AudioManager.AUDIOFOCUS_GAIN);
    while(audio.isMusicActive())
    {
       this.onAudioFocusChange(result);

    }           

    //control SeekBar
    int maxV = audio.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
    int curV = audio.getStreamVolume(AudioManager.STREAM_MUSIC);
    sb = (SeekBar) findViewById(R.id.sb);
    sb.setMax(maxV);
    sb.setProgress(curV);
    sb.setOnSeekBarChangeListener(this);

    myWebView = (WebView) findViewById(R.id.webview);
    WebSettings webSettings = myWebView.getSettings();
    webSettings.setJavaScriptEnabled(true);
    webSettings.setPluginsEnabled(true);
    myWebView.loadUrl("http://www.testpage.co.uk/live.html");        
    // Create the adView
    adView = new AdView(this, AdSize.BANNER, MY_AD_UNIT_ID);
    // Lookup your LinearLayout 
    LinearLayout myAdview = (LinearLayout) findViewById(R.id.adsDisplay);
    // Add the adView to it
    myAdview.addView(adView);        
    // Initiate a generic request to load it with an ad
    AdRequest request = new AdRequest();

    adView.loadAd(request);        
}

请建议/帮助...

4

1 回答 1

4

音频焦点与您尝试做的事情不同。

您需要一个PhoneStateListener并监视呼叫何时到来和何时消失。像这样的东西：

PhoneStateListener mPhoneStateListener = new PhoneStateListener()
{
    protected boolean mWasPlayingWhenCalled = false;

    @Override
    public void onCallStateChanged(int state, String incomingNumber)
    {
        if( state == TelephonyManager.CALL_STATE_RINGING )
        { // Incoming call: Pause music
            if( mPlaying )
            {
                stop();
                mWasPlayingWhenCalled = true;
            }
        }
        else if(state == TelephonyManager.CALL_STATE_IDLE )
        {  // Not in call: Play music
            if( mWasPlayingWhenCalled )
            {
                start();
                mWasPlayingWhenCalled = false;
            }
        }
        else if( state == TelephonyManager.CALL_STATE_OFFHOOK )
        { // A call is dialing, active or on hold
        }

        super.onCallStateChanged(state, incomingNumber);
    }
};

然后在你的 onCreate() 或类似的：

TelephonyManager mgr = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);
mgr.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);
于 2011-12-09T13:58:27.040 回答