(L1)AudioService AudioManagerInternal , Ringer mode, stream uid

前言

AudioSystem 并没有为 ringer mode 提供接口

AudioManagerInternal.java 提供了抽象方法和接口类用于处理 ringer mode

AudioManagerInternal

package android.media;

import android.os.IBinder;

import com.android.server.LocalServices;

/**
 * Class for system services to access extra AudioManager functionality. The
 * AudioService is responsible for registering an implementation with
 * {@link LocalServices}.
 *
 * @hide
 */
public abstract class AudioManagerInternal {

    public abstract void adjustSuggestedStreamVolumeForUid(int streamType, int direction,
            int flags,
            String callingPackage, int uid);

    public abstract void adjustStreamVolumeForUid(int streamType, int direction, int flags,
            String callingPackage, int uid);

    public abstract void setStreamVolumeForUid(int streamType, int direction, int flags,
            String callingPackage, int uid);

    public abstract void adjustMasterVolumeForUid(int steps, int flags, String callingPackage,
            int uid);

    public abstract void setMasterMuteForUid(boolean state, int flags, String callingPackage,
            IBinder cb, int uid);

    public abstract void setRingerModeDelegate(RingerModeDelegate delegate);

    public abstract int getRingerModeInternal();

    public abstract void setRingerModeInternal(int ringerMode, String caller);

    public interface RingerModeDelegate {
        /** Called when external ringer mode is evaluated, returns the new internal ringer mode */
        int onSetRingerModeExternal(int ringerModeOld, int ringerModeNew, String caller,
                int ringerModeInternal);

        /** Called when internal ringer mode is evaluated, returns the new external ringer mode */
        int onSetRingerModeInternal(int ringerModeOld, int ringerModeNew, String caller,
                int ringerModeExternal);
    }
}