Android MTK 修改默认音频和声音大小

Z:\alps\frameworks\base\media\java\android\media

AudioManager.java

frameworks/base/media/java/android/media/AudioManager.java

DEFAULT_STREAM_VOLUME 第4个值(最大我设置到30但是还是差2格才到最大--默认是11(都改成15就成功了)

public static final int[] DEFAULT_STREAM_VOLUME= new int[] {

15, // STREAM_VOICE_CALL

15, // STREAM_SYSTEM

15, // STREAM_RING

15, // STREAM_MUSIC

15, // STREAM_ALARM

15, // STREAM_NOTIFICATION

15, // STREAM_BLUETOOTH_SCO

15, // STREAM_SYSTEM_ENFORCED

15, // STREAM_DTMF

15, // STREAM_TTS

8, // STREAM_FM

8 // STREAM_MATV

};
　　建议将数组里的所有的数值都设为最大就OK了)
mmframeworks/base

AudioService.java中定义了每一种音频流的最大音量级别：

/** @hide Maximum volume index values for audio streams */

private int[] MAX_STREAM_VOLUME = new int[] {

5, // STREAM_VOICE_CALL

7, // STREAM_SYSTEM

7, // STREAM_RING

15, // STREAM_MUSIC

7, // STREAM_ALARM

7, // STREAM_NOTIFICATION

15, // STREAM_BLUETOOTH_SCO

7, // STREAM_SYSTEM_ENFORCED

15, // STREAM_DTMF

. 15 // STREAM_TTS

};

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