IT. Expert System.

All Implemented Interfaces:

View.OnClickListener, SeekBar.OnSeekBarChangeListener

public class VolumePanel
extends Handler
implements SeekBar.OnSeekBarChangeListener, View.OnClickListener

• Nested Class Summary

  • Nested classes/interfaces inherited from class android.os.Handler

    Handler.Callback

• Field Summary

  Fields

  Modifier and Type	Field and Description
  protected AudioService	mAudioService
  protected Context	mContext
  static int	PLAY_SOUND_DELAY The delay before playing a sound.
  static int	VIBRATE_DELAY The delay before vibrating.

• Constructor Summary

  Constructors

  Constructor and Description
  VolumePanel(Context context, AudioService volumeService)

• Method Summary

  Methods

  Modifier and Type	Method and Description
  void	handleMessage(Message msg) Subclasses must implement this to receive messages.
  void	onClick(View v) Called when a view has been clicked.
  protected void	onDisplaySafeVolumeWarning()
  protected void	onFreeResources()
  protected void	onMuteChanged(int streamType, int flags)
  protected void	onPlaySound(int streamType, int flags)
  void	onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) Notification that the progress level has changed.
  protected void	onRemoteVolumeChanged(int streamType, int flags)
  protected void	onRemoteVolumeUpdateIfShown()
  protected void	onShowVolumeChanged(int streamType, int flags)
  protected void	onSliderVisibilityChanged(int streamType, int visible) Handler for MSG_SLIDER_VISIBILITY_CHANGED Hide or show a slider
  void	onStartTrackingTouch(SeekBar seekBar) Notification that the user has started a touch gesture.
  protected void	onStopSounds()
  void	onStopTrackingTouch(SeekBar seekBar) Notification that the user has finished a touch gesture.
  protected void	onVibrate()
  protected void	onVolumeChanged(int streamType, int flags) Override this if you have other work to do when the volume changes (for example, vibrating, playing a sound, etc.).
  void	postDisplaySafeVolumeWarning()
  void	postHasNewRemotePlaybackInfo() Called by AudioService when it has received new remote playback information that would affect the VolumePanel display (mainly volumes).
  void	postMasterMuteChanged(int flags)
  void	postMasterVolumeChanged(int flags)
  void	postMuteChanged(int streamType, int flags)
  void	postRemoteSliderVisibility(boolean visible)
  void	postRemoteVolumeChanged(int streamType, int flags)
  void	postVolumeChanged(int streamType, int flags)

  • Methods inherited from class android.os.Handler

    dispatchMessage, dump, getLooper, getMessageName, hasCallbacks, hasMessages, hasMessages, obtainMessage, obtainMessage, obtainMessage, obtainMessage, obtainMessage, post, postAtFrontOfQueue, postAtTime, postAtTime, postDelayed, removeCallbacks, removeCallbacks, removeCallbacksAndMessages, removeMessages, removeMessages, runWithScissors, sendEmptyMessage, sendEmptyMessageAtTime, sendEmptyMessageDelayed, sendMessage, sendMessageAtFrontOfQueue, sendMessageAtTime, sendMessageDelayed, toString

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

• Field Detail

  • PLAY_SOUND_DELAY

    public static final int PLAY_SOUND_DELAY

    The delay before playing a sound. This small period exists so the user can press another key (non-volume keys, too) to have it NOT be audible.

    PhoneWindow will implement this part.

    See Also:

    Constant Field Values

  • VIBRATE_DELAY

    public static final int VIBRATE_DELAY

    The delay before vibrating. This small period exists so if the user is moving to silent mode, it will not emit a short vibrate (it normally would since vibrate is between normal mode and silent mode using hardware keys).

    See Also:

    Constant Field Values

  • mContext

    protected Context mContext

  • mAudioService

    protected AudioService mAudioService

• Constructor Detail

  • VolumePanel

    public VolumePanel(Context context,
               AudioService volumeService)

• Method Detail

  • postVolumeChanged

    public void postVolumeChanged(int streamType,
                         int flags)

  • postRemoteVolumeChanged

    public void postRemoteVolumeChanged(int streamType,
                               int flags)

  • postRemoteSliderVisibility

    public void postRemoteSliderVisibility(boolean visible)

  • postHasNewRemotePlaybackInfo

    public void postHasNewRemotePlaybackInfo()

    Called by AudioService when it has received new remote playback information that would affect the VolumePanel display (mainly volumes). The difference with postRemoteVolumeChanged(int, int) is that the handling of the posted message (MSG_REMOTE_VOLUME_UPDATE_IF_SHOWN) will only update the volume slider if it is being displayed. This special code path is due to the fact that remote volume updates arrive to AudioService asynchronously. So after AudioService has sent the volume update (which should be treated as a request to update the volume), the application will likely set a new volume. If the UI is still up, we need to refresh the display to show this new value.

  • postMasterVolumeChanged

    public void postMasterVolumeChanged(int flags)

  • postMuteChanged

    public void postMuteChanged(int streamType,
                       int flags)

  • postMasterMuteChanged

    public void postMasterMuteChanged(int flags)

  • postDisplaySafeVolumeWarning

    public void postDisplaySafeVolumeWarning()

  • onVolumeChanged

    protected void onVolumeChanged(int streamType,
                       int flags)

    Override this if you have other work to do when the volume changes (for example, vibrating, playing a sound, etc.). Make sure to call through to the superclass implementation.

  • onMuteChanged

    protected void onMuteChanged(int streamType,
                     int flags)

  • onShowVolumeChanged

    protected void onShowVolumeChanged(int streamType,
                           int flags)

  • onPlaySound

    protected void onPlaySound(int streamType,
                   int flags)

  • onStopSounds

    protected void onStopSounds()

  • onVibrate

    protected void onVibrate()

  • onRemoteVolumeChanged

    protected void onRemoteVolumeChanged(int streamType,
                             int flags)

  • onRemoteVolumeUpdateIfShown

    protected void onRemoteVolumeUpdateIfShown()

  • onSliderVisibilityChanged

    protected void onSliderVisibilityChanged(int streamType,
                                 int visible)

    Handler for MSG_SLIDER_VISIBILITY_CHANGED Hide or show a slider

    Parameters:

    streamType - can be a valid stream type value, or VolumePanel.STREAM_MASTER, or AudioService.STREAM_REMOTE_MUSIC

    visible -

  • onDisplaySafeVolumeWarning

    protected void onDisplaySafeVolumeWarning()

  • onFreeResources

    protected void onFreeResources()

  • handleMessage

    public void handleMessage(Message msg)

    Description copied from class: Handler
    Subclasses must implement this to receive messages.

    Overrides:

    handleMessage in class Handler

  • onProgressChanged

    public void onProgressChanged(SeekBar seekBar,
                         int progress,
                         boolean fromUser)

    Description copied from interface: SeekBar.OnSeekBarChangeListener
    Notification that the progress level has changed. Clients can use the fromUser parameter to distinguish user-initiated changes from those that occurred programmatically.

    Specified by:

    onProgressChanged in interface SeekBar.OnSeekBarChangeListener

    Parameters:

    seekBar - The SeekBar whose progress has changed

    progress - The current progress level. This will be in the range 0..max where max was set by ProgressBar.setMax(int). (The default value for max is 100.)

    fromUser - True if the progress change was initiated by the user.

  • onStartTrackingTouch

    public void onStartTrackingTouch(SeekBar seekBar)

    Description copied from interface: SeekBar.OnSeekBarChangeListener
    Notification that the user has started a touch gesture. Clients may want to use this to disable advancing the seekbar.

    Specified by:

    onStartTrackingTouch in interface SeekBar.OnSeekBarChangeListener

    Parameters:

    seekBar - The SeekBar in which the touch gesture began

  • onStopTrackingTouch

    public void onStopTrackingTouch(SeekBar seekBar)

    Description copied from interface: SeekBar.OnSeekBarChangeListener
    Notification that the user has finished a touch gesture. Clients may want to use this to re-enable advancing the seekbar.

    Specified by:

    onStopTrackingTouch in interface SeekBar.OnSeekBarChangeListener

    Parameters:

    seekBar - The SeekBar in which the touch gesture began

  • onClick

    public void onClick(View v)

    Description copied from interface: View.OnClickListener
    Called when a view has been clicked.

    Specified by:

    onClick in interface View.OnClickListener

    Parameters:

    v - The view that was clicked.