[solved] Android volume control

habamax

Is it possible to change system volume on android?
Like in java:
@
AudioManager mgr=null;

mgr=(AudioManager)getSystemService(Context.AUDIO_SERVICE);
mgr.setStreamVolume(AudioManager.STREAM_MUSIC, 0, AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);
@

p3c0

Hi,

AFAIK, there's no inbuilt way in Qt. You will have to rely on the Android API's. For it you will need to call Android API's from Qt.
Have a look at "qtandroidextras":http://qt-project.org/doc/qt-5/qtandroidextras-module.html and "qandroidjniobject":http://qt-project.org/doc/qt-5/qandroidjniobject.html. Also an example "here":http://qt-project.org/doc/qt-5/qtandroidextras-notification-example.html

habamax

[quote author="p3c0" date="1404474027"]Hi, AFAIK, there's no inbuilt way in Qt. You will have to rely on the Android API's. For it you will need to call Android API's from Qt. Have a look at "qtandroidextras":http://qt-project.org/doc/qt-5/qtandroidextras-module.html and "qandroidjniobject":http://qt-project.org/doc/qt-5/qandroidjniobject.html. Also an example "here":http://qt-project.org/doc/qt-5/qtandroidextras-notification-example.html[/quote]

Thx!

I will have a closer look into it.

I wonder is there a function in android ndk I could wrap as a qml component and use it in qml to adjust system volume.

p3c0

I don't think so android would allow it directly unless the system is rooted and more if a such a C function exists.

Gianluca

You can easily use QtAndroidExtras to call from C++ your java method, and then you can wrap the QtAndroidExtras into a QObject and export it to QML side.
I did it for other stuffs and works great.

[quote author="habamax" date="1404475287"][quote author="p3c0" date="1404474027"]Hi, AFAIK, there's no inbuilt way in Qt. You will have to rely on the Android API's. For it you will need to call Android API's from Qt. Have a look at "qtandroidextras":http://qt-project.org/doc/qt-5/qtandroidextras-module.html and "qandroidjniobject":http://qt-project.org/doc/qt-5/qandroidjniobject.html. Also an example "here":http://qt-project.org/doc/qt-5/qtandroidextras-notification-example.html[/quote]

Thx!

I will have a closer look into it.

I wonder is there a function in android ndk I could wrap as a qml component and use it in qml to adjust system volume.

[/quote]