Android7.1调整屏幕分辨率与系统默认音量设置方法详解

说明

系统默认的音量太大&＃xff0c;需要将默认音量调小一点。

实现

主要是修改系统、铃声、媒体、闹钟的默认音量大小。

zhoujy&＃64;TP:~/data/android/sc826_cn_01_00/msm_8953_git/frameworks$ git show 58a8d5266736e328aa7abbddb8944c4c541ee2ac

commit 58a8d5266736e328aa7abbddb8944c4c541ee2ac

Author: zhoujinyan

Date: Sun Jun 28 19:45:16 2020 &＃43;0800

[frameworks]修改系统默认音量

diff --git a/frameworks/base/media/java/android/media/AudioSystem.java b/frameworks/base/media/java/android/media/AudioSystem.java

index e08c290..a930b80 100644

--- a/frameworks/base/media/java/android/media/AudioSystem.java

&＃43;&＃43;&＃43; b/frameworks/base/media/java/android/media/AudioSystem.java

&＃64;&＃64; -770,10 &＃43;770,10 &＃64;&＃64; public class AudioSystem

public static int[] DEFAULT_STREAM_VOLUME &＃61; new int[] {

4, // STREAM_VOICE_CALL

- 7, // STREAM_SYSTEM

- 5, // STREAM_RING

- 11, // STREAM_MUSIC

- 6, // STREAM_ALARM

&＃43; 4, // STREAM_SYSTEM

&＃43; 3, // STREAM_RING

&＃43; 5, // STREAM_MUSIC

&＃43; 3, // STREAM_ALARM

5, // STREAM_NOTIFICATION

7, // STREAM_BLUETOOTH_SCO

7, // STREAM_SYSTEM_ENFORCED

修改电话声音最大值&＃xff0c;进度条就可以调节多个

diff --git a/frameworks/base/services/core/java/com/android/server/audio/AudioService.java b/frameworks/base/services/core/java/com/android/server/audio/AudioService.java

index cf7a9ea..1fdc05f 100644

--- a/frameworks/base/services/core/java/com/android/server/audio/AudioService.java

&＃43;&＃43;&＃43; b/frameworks/base/services/core/java/com/android/server/audio/AudioService.java

&＃64;&＃64; -282,7 &＃43;282,7 &＃64;&＃64; public class AudioService extends IAudioService.Stub {

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

private static int[] MAX_STREAM_VOLUME &＃61; new int[] {

- 5, // STREAM_VOICE_CALL

&＃43; 8, // STREAM_VOICE_CALL

7, // STREAM_SYSTEM

7, // STREAM_RING

15, // STREAM_MUSIC

本文地址&＃xff1a;https://blog.csdn.net/zjy764219923/article/details/109637424