Author: h.mohri
Use C++Builder 10.2 to control audio volume of iOS.
I used the MPVolumeView class of iOS.
The MPVolumeView class is declared in “iOSapi.MediaPlayer.hpp”.
Include two files.
[crayon-6a92805fa4c0d800628541/]
Form design
Arrange “Up” and “Down” two TButton. Use this button to control the volume.
Add MPVolumeView to the main form Class
Add “_di_MPVolumeView” and “_di_UISlider” to the form class.
[crayon-6a92805fa4c15174041519/]
Main Form constructor
[crayon-6a92805fa4c17233102054/]
Code of volume down button
[crayon-6a92805fa4c19771889184/]
Code of volume up button
[crayon-6a92805fa4c1a463308787/]
Execute the program.
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