/**
* Calls into AudioSystem to check the current status of audio streams.
*
* <p>The inPastMs value is only used by the system on API 11+.
*
* @param stream The stream ID to query
* @param inPastMs The time interval allowance, in milliseconds, for checking active streams
* @return {@code true} if the stream is or was open in the past {@code inPastMs} milliseconds,
* {@code false} otherwise
*/
public static boolean isStreamActive(int stream, int inPastMs) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
return (Boolean) CompatUtils.invoke(null, false, METHOD_isStreamActive, stream, inPastMs);
} else {
return (Boolean) CompatUtils.invoke(null, false, METHOD_LEGACY_isStreamActive, stream);
}
}
public class AudioSystemCompatUtils {
private static final Class<?> CLASS_AudioSystem =
CompatUtils.getClass("android.media.AudioSystem");
private static final Method METHOD_isStreamActive =
CompatUtils.getMethod(CLASS_AudioSystem, "isStreamActive", int.class, int.class);
private static final Method METHOD_LEGACY_isStreamActive =
CompatUtils.getMethod(CLASS_AudioSystem, "isStreamActive", int.class);
private static final Method METHOD_isSourceActive =
CompatUtils.getMethod(CLASS_AudioSystem, "isSourceActive", int.class);
/**
* Calls into AudioSystem to check the current status of audio streams.
*
* <p>The inPastMs value is only used by the system on API 11+.
*
* @param stream The stream ID to query
* @param inPastMs The time interval allowance, in milliseconds, for checking active streams
* @return {@code true} if the stream is or was open in the past {@code inPastMs} milliseconds,
* {@code false} otherwise
*/
public static boolean isStreamActive(int stream, int inPastMs) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
return (Boolean) CompatUtils.invoke(null, false, METHOD_isStreamActive, stream, inPastMs);
} else {
return (Boolean) CompatUtils.invoke(null, false, METHOD_LEGACY_isStreamActive, stream);
}
}
/**
* Calls into AudioSystem to check the current status of an input source.
*
* <p>This is only available on API 17+ and will always return false if invoked on earlier
* platforms.
*
* @param source The source ID to query. Expects constants from {@code MediaRecorder.AudioSource}
* @return {@code true} if the input source is active, {@code false} otherwise.
*/
public static boolean isSourceActive(int source) {
return (Boolean) CompatUtils.invoke(null, false, METHOD_isSourceActive, source);
}
}
/**
* Calls into AudioSystem to check the current status of an input source.
*
* <p>This is only available on API 17+ and will always return false if invoked on earlier
* platforms.
*
* @param source The source ID to query. Expects constants from {@code MediaRecorder.AudioSource}
* @return {@code true} if the input source is active, {@code false} otherwise.
*/
public static boolean isSourceActive(int source) {
return (Boolean) CompatUtils.invoke(null, false, METHOD_isSourceActive, source);
}
