I have implemented support in my application for the new audio features provided in the Froyo methods:
registerMediaButtonEventReceiver unregisterMediaButtonEventReceiver requestAudioFocus abandonAudioFocus These are all working fine when running on an Android 2.2 (Froyo) device. I have successfully used reflection for the methods: registerMediaButtonEventReceiver unregisterMediaButtonEventReceiver so that the same application can run on any Android version from 1.5 to 2.2 when using these methods. However, I am having trouble trying to use reflection for the methods: requestAudioFocus abandonAudioFocus because these methods require an OnAudioFocusChangeListener parameter which is unknown on Android devices running 1.5 to 2.1. Because the parameter type that must be passed into these methods is unknown and also because my application has to have an instance of the OnAudioFocusChangeListener object I am having trouble making reflection work. I can't figure out how to use the AudioManager.class.getMethod call when it needs a parameter of type OnAudioFocusChangeListener. I also can't figure out how to define my instance of OnAudioFocusChangeListener so that the application can be loaded on a device running Android 1.5 through 2.1 without getting a Force Close message while it is loading. I have searched a lot of forums and haven't found any examples of how to get reflection to work with these new Froyo audio APIs. Can someone who better understands the use of reflection for supporting new APIs without breaking the application's ability to continue to run on older Android versions help me with some examples for how to do this? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
