android 音频焦点

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音频焦点分为两种

1永久占用((AudioManager) getSystemService(AUDIO_SERVICE)) .requestAudioFocus(null, AudioManager.STREAM_MUSIC,
                AudioManager.AUDIOFOCUS_GAIN);

2临时占用((AudioManager) getSystemService(AUDIO_SERVICE)) .requestAudioFocus(null, AudioManager.STREAM_MUSIC,
                AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);

释放音频焦点((AudioManager) getSystemService(AUDIO_SERVICE)).abandonAudioFocus(null);

android 音频焦点

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原文地址：http://www.cnblogs.com/dabaobeier/p/4204153.html