Android 8.0 设置默认闹钟提示音或者默认通知提示音

设置关于声音的相关类:
\packages\apps\Settings\src\com\android\settings\notification\SoundSettings.java // 声音页面
\packages\apps\Settings\res\xml\sound_settings.xml // 布局

\packages\apps\Settings\src\com\android\settings\notification\RingtonePreferenceControllerBase.java // PreferenceController基类
\packages\apps\Settings\src\com\android\settings\notification\NotificationRingtonePreferenceController.java // 默认通知铃声PreferenceController
\packages\apps\Settings\src\com\android\settings\notification\AlarmRingtonePreferenceController.java // 默认闹钟铃声PreferenceController
\frameworks\base\media\java\android\media\RingtoneManager.java // 声音的最终调用类

--------- content://media/internal/audio/media/14 默认通知 RingtoneManager.TYPE_NOTIFICATION
---------summary Canopus
--------- content://media/internal/audio/media/24 手机铃声
---------summary Digital Phone
--------- content://media/internal/audio/media/10 默认闹钟提示音 RingtoneManager.TYPE_ALARM
---------summary Oxygen

\out\target\product\QT4004\system\media\audio //系统编译后的铃声所在位置

解决方案:
方案1:
Z:\qt4004\trunk\LINUX\android\build\make\target\product\full_base.mk

# Additional settings used in all AOSP builds
PRODUCT_PROPERTY_OVERRIDES := \
ro.config.ringtone=Argon.ogg \
ro.config.notification_sound=Argon.ogg

方案2(如方案1无效,说明可能是out目录未删除,或者full_base.mk未调用到,可采用此方法(不推荐)):
Z:\qt4004\trunk\LINUX\android\device\qcom\QT4004\system.prop

#add olc@20180622 for Default sound
#ro.config.ringtone=Thunderfoot.ogg
ro.config.notification_sound=Argon.ogg
ro.config.alarm_alert=Argon.ogg

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转载自www.cnblogs.com/vendor/p/9213022.html