Example usage for android.view KeyEvent KEYCODE_VOLUME_DOWN

Introduction

In this page you can find the example usage for android.view KeyEvent KEYCODE_VOLUME_DOWN.

Prototype

int KEYCODE_VOLUME_DOWN

To view the source code for android.view KeyEvent KEYCODE_VOLUME_DOWN.

Click Source Link

Document

Key code constant: Volume Down key.

Usage

From source file:com.android.deskclock.alarms.AlarmActivity.java

@Override
public boolean dispatchKeyEvent(@NonNull KeyEvent keyEvent) {
    // Do this in dispatch to intercept a few of the system keys.
    LogUtils.v(LOGTAG, "dispatchKeyEvent: %s", keyEvent);

    switch (keyEvent.getKeyCode()) {
    // Volume keys and camera keys dismiss the alarm.
    case KeyEvent.KEYCODE_POWER:
    case KeyEvent.KEYCODE_VOLUME_UP:
    case KeyEvent.KEYCODE_VOLUME_DOWN:
    case KeyEvent.KEYCODE_VOLUME_MUTE:
    case KeyEvent.KEYCODE_CAMERA:
    case KeyEvent.KEYCODE_FOCUS:
        if (!mAlarmHandled && keyEvent.getAction() == KeyEvent.ACTION_UP) {
            switch (mVolumeBehavior) {
            case SettingsActivity.VOLUME_BEHAVIOR_SNOOZE:
                snooze();//w  w  w  .  j a  v  a  2s.  c  o m
                break;
            case SettingsActivity.VOLUME_BEHAVIOR_DISMISS:
                dismiss();
                break;
            default:
                break;
            }
        }
        return true;
    default:
        return super.dispatchKeyEvent(keyEvent);
    }
}

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From source file:org.protocoderrunner.base.BaseActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {

    MLog.d(TAG, "" + keyCode);

    if (AppSettings.OVERRIDE_VOLUME_BUTTONS
            && (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN || keyCode == KeyEvent.KEYCODE_VOLUME_UP)) {

        return true;
    }//from  www  .ja v  a2s . c  o m

    if (keyCode == KeyEvent.KEYCODE_BACK && AppSettings.CLOSE_WITH_BACK) {
        finish();
        return true;
    }

    return super.onKeyDown(keyCode, event);
}

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From source file:org.easyaccess.phonedialer.CallingScreen.java

@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
    if (KeyEvent.KEYCODE_VOLUME_UP == event.getKeyCode()) {
        if (Utils.ringing == 1) {
            // announce the caller name/number
            announceCaller(this.callerDetails);
            return true;
        } else if (Utils.ringing == 0 && Utils.off_hook == 1) {
            // activate loudspeaker
            Utils.audioManager = (AudioManager) getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
            if (Utils.audioManager.isSpeakerphoneOn() == false) {
                Utils.audioManager.setSpeakerphoneOn(true);
            } else {
                // deactivate loudspeaker
                Utils.audioManager.setSpeakerphoneOn(false);
            }//from   ww w  .  j  a va  2  s .c om
            return true;
        }
    } else if (KeyEvent.KEYCODE_VOLUME_DOWN == event.getKeyCode()) {
        if (Utils.ringing == 1) {
            // mute the ringtone
            muteRingtone();
            return true;
        } else if (Utils.ringing == 0 && Utils.off_hook == 1) {

            if (Utils.audioManager.isMicrophoneMute() == true) {
                Utils.audioManager.setMicrophoneMute(false);
            } else {
                Utils.audioManager.setMicrophoneMute(true);
            }
            return true;
        }
    }
    return super.onKeyUp(keyCode, event);
}

---

From source file:de.qspool.clementineremote.ui.MainActivity.java

@Override
public boolean onKeyUp(int keyCode, KeyEvent keyEvent) {
    if (mSharedPref.getBoolean(App.SP_KEY_USE_VOLUMEKEYS, true)) {
        if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN || keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
            return true;
        }/*from   ww  w  .jav a 2 s  .com*/
    }
    return super.onKeyUp(keyCode, keyEvent);
}

---

From source file:com.androidinspain.deskclock.alarms.AlarmActivity.java

@Override
public boolean dispatchKeyEvent(@NonNull KeyEvent keyEvent) {
    // Do this in dispatch to intercept a few of the system keys.
    LOGGER.v("dispatchKeyEvent: %s", keyEvent);

    final int keyCode = keyEvent.getKeyCode();
    switch (keyCode) {
    // Volume keys and camera keys dismiss the alarm.
    case KeyEvent.KEYCODE_VOLUME_UP:
    case KeyEvent.KEYCODE_VOLUME_DOWN:
    case KeyEvent.KEYCODE_VOLUME_MUTE:
    case KeyEvent.KEYCODE_HEADSETHOOK:
    case KeyEvent.KEYCODE_CAMERA:
    case KeyEvent.KEYCODE_FOCUS:
        if (!mAlarmHandled) {
            switch (mVolumeBehavior) {
            case SNOOZE:
                if (keyEvent.getAction() == KeyEvent.ACTION_UP) {
                    snooze();//from w w  w  . ja  v  a 2s.  c  om
                }
                return true;
            case DISMISS:
                if (keyEvent.getAction() == KeyEvent.ACTION_UP) {
                    dismiss();
                }
                return true;
            }
        }
    }
    return super.dispatchKeyEvent(keyEvent);
}

---

From source file:com.qiusheng.cast.CastActivity.java

/**
 * Processes volume up and volume down actions upon receiving them as key
 * events.//from w  w w  .ja v  a2  s . com
 */
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
    int action = event.getAction();
    int keyCode = event.getKeyCode();
    switch (keyCode) {
    case KeyEvent.KEYCODE_VOLUME_UP:
        if (action == KeyEvent.ACTION_DOWN) {
            double currentVolume;
            if (mMessageStream != null) {
                currentVolume = mMessageStream.getVolume();
                logVIfEnabled(TAG, "Volume up from " + currentVolume);
                if (currentVolume < 1.0) {
                    logVIfEnabled(TAG, "New volume: " + (currentVolume + VOLUME_INCREMENT));
                    onSetVolume(currentVolume + VOLUME_INCREMENT);
                }
            } else {
                Log.e(TAG, "dispatchKeyEvent - volume up - mMessageStream==null");
            }
        }

        return true;
    case KeyEvent.KEYCODE_VOLUME_DOWN:
        if (action == KeyEvent.ACTION_DOWN) {
            double currentVolume;
            if (mMessageStream != null) {
                currentVolume = mMessageStream.getVolume();
                logVIfEnabled(TAG, "Volume down from: " + currentVolume);
                if (currentVolume > 0.0) {
                    logVIfEnabled(TAG, "New volume: " + (currentVolume - VOLUME_INCREMENT));
                    onSetVolume(currentVolume - VOLUME_INCREMENT);
                }
            } else {
                Log.e(TAG, "dispatchKeyEvent - volume down - mMessageStream==null");
            }
        }
        return true;
    default:
        return super.dispatchKeyEvent(event);
    }
}

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From source file:org.xbmc.android.remote.presentation.activity.MovieLibraryActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    IEventClientManager client = ManagerFactory.getEventClientManager(mMovieController);
    switch (keyCode) {
    case KeyEvent.KEYCODE_VOLUME_UP:
        client.sendButton("R1", ButtonCodes.REMOTE_VOLUME_PLUS, false, true, true, (short) 0, (byte) 0);
        return true;
    case KeyEvent.KEYCODE_VOLUME_DOWN:
        client.sendButton("R1", ButtonCodes.REMOTE_VOLUME_MINUS, false, true, true, (short) 0, (byte) 0);
        return true;
    }//from  ww w .  j a va2  s  .c om
    client.setController(null);
    return super.onKeyDown(keyCode, event);
}

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From source file:org.chromium.chrome.browser.media.remote.ExpandedControllerActivity.java

/**
 * Modify remote volume by handling volume keys.
 *
 * @param controller The remote controller through which the volume will be modified.
 * @param event The key event. Its keycode needs to be either {@code KEYCODE_VOLUME_DOWN} or
 *              {@code KEYCODE_VOLUME_UP} otherwise this method will return false.
 * @return True if the event is handled.
 *//*from w  w  w.java 2s.co m*/
private boolean handleVolumeKeyEvent(MediaRouteController controller, KeyEvent event) {
    if (!controller.isBeingCast())
        return false;

    int action = event.getAction();
    int keyCode = event.getKeyCode();
    // Intercept the volume keys to affect only remote volume.
    switch (keyCode) {
    case KeyEvent.KEYCODE_VOLUME_DOWN:
        if (action == KeyEvent.ACTION_DOWN)
            controller.setRemoteVolume(-1);
        return true;
    case KeyEvent.KEYCODE_VOLUME_UP:
        if (action == KeyEvent.ACTION_DOWN)
            controller.setRemoteVolume(1);
        return true;
    default:
        return false;
    }
}

---

From source file:org.libreoffice.impressremote.activity.SlideShowActivity.java

@Override
public boolean onKeyDown(int aKeyCode, KeyEvent aKeyEvent) {
    if (!areVolumeKeysActionsRequired()) {
        return super.onKeyDown(aKeyCode, aKeyEvent);
    }/*from  w  w  w . ja  v  a2 s.  c  om*/

    switch (aKeyCode) {
    case KeyEvent.KEYCODE_VOLUME_UP:
        if (!isLastSlideDisplayed()) {
            mCommunicationService.getCommandsTransmitter().performNextTransition();
        }
        return true;

    case KeyEvent.KEYCODE_VOLUME_DOWN:
        mCommunicationService.getCommandsTransmitter().performPreviousTransition();
        return true;

    default:
        return super.onKeyDown(aKeyCode, aKeyEvent);
    }
}

---

From source file:com.cleverzone.zhizhi.capture.CaptureActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    switch (keyCode) {
    case KeyEvent.KEYCODE_BACK:
        if (source == IntentSource.NATIVE_APP_INTENT) {
            setResult(RESULT_CANCELED);//from  ww w. ja  v  a2s.c o m
            finish();
            return true;
        }
        if ((source == IntentSource.NONE || source == IntentSource.ZXING_LINK) && lastResult != null) {
            restartPreviewAfterDelay(0L);
            return true;
        }
        break;
    case KeyEvent.KEYCODE_FOCUS:
    case KeyEvent.KEYCODE_CAMERA:
        // Handle these events so they don't launch the Camera app
        return true;
    // Use volume up/down to turn on light
    case KeyEvent.KEYCODE_VOLUME_DOWN:
        cameraManager.setTorch(false);
        return true;
    case KeyEvent.KEYCODE_VOLUME_UP:
        cameraManager.setTorch(true);
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

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