/**

* 使用AudioManager控制音量

* @param value

* @param context

* // https://github.com/lucid-lynxz/BlogSamples/blob/master/VideoViewDemo/app/src/main/java/org/lynxz/videoviewdemo/MainActivity.java

*/

private void setVoiceVolume(float value,Context context) {

try {

AudioManager audioManager=

(AudioManager)context.getSystemService(Service.AUDIO_SERVICE);

int currentVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);

int maxVolume = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);//(最大值是15)

int flag = value > 0 ? -1 : 1;

currentVolume += flag * 0.1 * maxVolume;

// 对currentVolume进行限制

audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, currentVolume, 0);

} catch (Exception e) {

e.printStackTrace();

}

}

/**

* @param volume 音量大小

* @param object VideoView实例

* ///VideoView 反射 MediaPlayer控制音量 http://blog..net/u012874222/article/details/73303264

* 静音有效果,恢复无效

* */

private void setVolume(float volume,Object object) {

try {

Class> forName = Class.forName("android.widget.VideoView");

Field field = forName.getDeclaredField("mMediaPlayer");

field.setAccessible(true);

MediaPlayer mMediaPlayer = (MediaPlayer) field.get(object);

mMediaPlayer.setVolume(volume, volume);

} catch (Exception e) {

e.printStackTrace();

}

}