+++ /dev/null
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.camera;
-
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.net.Uri;
-import android.os.Bundle;
-import android.provider.MediaStore;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.view.GestureDetector;
-import android.view.KeyEvent;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.MotionEvent;
-import android.view.View;
-import android.view.Window;
-import android.view.WindowManager;
-import android.view.View.OnTouchListener;
-import android.view.animation.AlphaAnimation;
-import android.view.animation.Animation;
-import android.widget.Toast;
-import android.widget.ZoomButtonsController;
-
-import com.android.camera.gallery.IImage;
-import com.android.camera.gallery.IImageList;
-import com.android.camera.gallery.VideoObject;
-
-/**
- * An activity displays a full picture and can navigate in a specific image
- * list.
- *
- * <p>The user view one image at a time, and can click "previous" and "next"
- * button to see the previous or next image.
- */
-public class ReviewImage extends NoSearchActivity
- implements View.OnClickListener {
- private static final String STATE_URI = "uri";
- private static final String TAG = "ReviewImage";
- private static final double ASPECT_RATIO = 4.0 / 3.0;
-
- private ImageGetter mGetter;
- private Uri mSavedUri;
- boolean mPaused = true;
- private boolean mShowControls = true;
-
- // Choices for what adjacents to load.
- private static final int[] sOrderAdjacents = new int[] {0, 1, -1};
-
- final GetterHandler mHandler = new GetterHandler();
-
- private boolean mFullScreenInNormalMode;
-
- int mCurrentPosition = 0;
-
- private View mRootView;
- private View mControlBar;
- private View mNextImageView;
- private View mPrevImageView;
- private final Animation mHideNextImageViewAnimation =
- new AlphaAnimation(1F, 0F);
- private final Animation mHidePrevImageViewAnimation =
- new AlphaAnimation(1F, 0F);
- private final Animation mShowNextImageViewAnimation =
- new AlphaAnimation(0F, 1F);
- private final Animation mShowPrevImageViewAnimation =
- new AlphaAnimation(0F, 1F);
-
- public static final String KEY_IMAGE_LIST = "image_list";
- private static final String STATE_SHOW_CONTROLS = "show_controls";
-
- ImageManager.ImageListParam mParam;
- IImageList mAllImages;
-
- private final ImageViewTouchBase [] mSlideShowImageViews =
- new ImageViewTouchBase[2];
-
- GestureDetector mGestureDetector;
- private ZoomButtonsController mZoomButtonsController;
-
- // The image view displayed for normal mode.
- private ImageViewTouch2 mImageView;
- // This is the cache for thumbnail bitmaps.
- private BitmapCache mCache;
- private MenuHelper.MenuItemsResult mImageMenuRunnable;
- private final Runnable mDismissOnScreenControlRunner = new Runnable() {
- public void run() {
- hideOnScreenControls();
- }
- };
-
- private void updateNextPrevControls() {
- boolean showPrev = mCurrentPosition > 0;
- boolean showNext = mCurrentPosition < mAllImages.getCount() - 1;
-
- boolean prevIsVisible = mPrevImageView.getVisibility() == View.VISIBLE;
- boolean nextIsVisible = mNextImageView.getVisibility() == View.VISIBLE;
-
- if (showPrev && !prevIsVisible) {
- Animation a = mShowPrevImageViewAnimation;
- a.setDuration(500);
- mPrevImageView.startAnimation(a);
- mPrevImageView.setVisibility(View.VISIBLE);
- } else if (!showPrev && prevIsVisible) {
- Animation a = mHidePrevImageViewAnimation;
- a.setDuration(500);
- mPrevImageView.startAnimation(a);
- mPrevImageView.setVisibility(View.GONE);
- }
-
- if (showNext && !nextIsVisible) {
- Animation a = mShowNextImageViewAnimation;
- a.setDuration(500);
- mNextImageView.startAnimation(a);
- mNextImageView.setVisibility(View.VISIBLE);
- } else if (!showNext && nextIsVisible) {
- Animation a = mHideNextImageViewAnimation;
- a.setDuration(500);
- mNextImageView.startAnimation(a);
- mNextImageView.setVisibility(View.GONE);
- }
- }
-
- private void showOnScreenControls() {
-
- // If the view has not been attached to the window yet, the
- // zoomButtonControls will not able to show up. So delay it until the
- // view has attached to window.
- if (mRootView.getWindowToken() == null) {
- mHandler.postGetterCallback(new Runnable() {
- public void run() {
- showOnScreenControls();
- }
- });
- return;
- }
-
- // we may need to update the next/prev button due to index changing
- updateNextPrevControls();
-
- if (ImageManager.isImage(mAllImages.getImageAt(mCurrentPosition))) {
- updateZoomButtonsEnabled();
- mZoomButtonsController.setVisible(true);
- } else {
- mZoomButtonsController.setVisible(false);
- }
- }
-
- private void hideOnScreenControls() {
- if (mNextImageView.getVisibility() == View.VISIBLE) {
- Animation a = mHideNextImageViewAnimation;
- a.setDuration(500);
- mNextImageView.startAnimation(a);
- mNextImageView.setVisibility(View.INVISIBLE);
- }
-
- if (mPrevImageView.getVisibility() == View.VISIBLE) {
- Animation a = mHidePrevImageViewAnimation;
- a.setDuration(500);
- mPrevImageView.startAnimation(a);
- mPrevImageView.setVisibility(View.INVISIBLE);
- }
-
- mZoomButtonsController.setVisible(false);
- }
-
- private void scheduleDismissOnScreenControls() {
- mHandler.removeCallbacks(mDismissOnScreenControlRunner);
- mHandler.postDelayed(mDismissOnScreenControlRunner, 2000);
- }
-
- @Override
- public boolean dispatchTouchEvent(MotionEvent m) {
- if (mZoomButtonsController.isVisible()) {
- scheduleDismissOnScreenControls();
- }
- return super.dispatchTouchEvent(m);
- }
-
- private void updateZoomButtonsEnabled() {
- ImageViewTouch2 imageView = mImageView;
- float scale = imageView.getScale();
- mZoomButtonsController.setZoomInEnabled(scale < imageView.mMaxZoom);
- mZoomButtonsController.setZoomOutEnabled(scale > 1);
- }
-
- @Override
- protected void onDestroy() {
- // This is necessary to make the ZoomButtonsController unregister
- // its configuration change receiver.
- if (mZoomButtonsController != null) {
- mZoomButtonsController.setVisible(false);
- }
-
- super.onDestroy();
- }
-
- private void setupOnScreenControls(View rootView, View ownerView) {
- mNextImageView = rootView.findViewById(R.id.next_image);
- mPrevImageView = rootView.findViewById(R.id.prev_image);
-
- mNextImageView.setOnClickListener(this);
- mPrevImageView.setOnClickListener(this);
-
- setupZoomButtonController(ownerView);
- setupOnTouchListeners(rootView);
- }
-
- private void setupZoomButtonController(final View ownerView) {
- mZoomButtonsController = new ZoomButtonsController(ownerView);
- mZoomButtonsController.setAutoDismissed(false);
- mZoomButtonsController.setZoomSpeed(100);
- mZoomButtonsController.setOnZoomListener(
- new ZoomButtonsController.OnZoomListener() {
- public void onVisibilityChanged(boolean visible) {
- if (visible) {
- updateZoomButtonsEnabled();
- }
- }
-
- public void onZoom(boolean zoomIn) {
- if (zoomIn) {
- mImageView.zoomIn();
- } else {
- mImageView.zoomOut();
- }
- mZoomButtonsController.setVisible(true);
- updateZoomButtonsEnabled();
- }
- });
- }
-
- private void setupOnTouchListeners(View rootView) {
- mGestureDetector = new GestureDetector(this, new MyGestureListener());
-
- // If the user touches anywhere on the panel (including the
- // next/prev button). We show the on-screen controls. In addition
- // to that, if the touch is not on the prev/next button, we
- // pass the event to the gesture detector to detect double tap.
- final OnTouchListener buttonListener = new OnTouchListener() {
- public boolean onTouch(View v, MotionEvent event) {
- scheduleDismissOnScreenControls();
- return false;
- }
- };
-
- OnTouchListener rootListener = new OnTouchListener() {
- public boolean onTouch(View v, MotionEvent event) {
- buttonListener.onTouch(v, event);
- mGestureDetector.onTouchEvent(event);
-
- // We do not use the return value of
- // mGestureDetector.onTouchEvent because we will not receive
- // the "up" event if we return false for the "down" event.
- return true;
- }
- };
-
- mNextImageView.setOnTouchListener(buttonListener);
- mPrevImageView.setOnTouchListener(buttonListener);
- rootView.setOnTouchListener(rootListener);
- }
-
- private class MyGestureListener extends
- GestureDetector.SimpleOnGestureListener {
-
- @Override
- public boolean onScroll(MotionEvent e1, MotionEvent e2,
- float distanceX, float distanceY) {
- if (mPaused) return false;
- ImageViewTouch2 imageView = mImageView;
- if (imageView.getScale() > 1F) {
- imageView.postTranslateCenter(-distanceX, -distanceY);
- }
- return true;
- }
-
- @Override
- public boolean onSingleTapConfirmed(MotionEvent e) {
- if (mPaused) return false;
- showOnScreenControls();
- scheduleDismissOnScreenControls();
- return true;
- }
-
- @Override
- public boolean onDoubleTap(MotionEvent e) {
- if (mPaused) return false;
- ImageViewTouch2 imageView = mImageView;
-
- // Switch between the original scale and 3x scale.
- if (imageView.getScale() > 2F) {
- mImageView.zoomTo(1f);
- } else {
- mImageView.zoomToPoint(3f, e.getX(), e.getY());
- }
- return true;
- }
- }
-
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- super.onCreateOptionsMenu(menu);
-
- // These are the menu items already covered by the side buttons.
- int sideButtons = MenuHelper.INCLUDE_DELETE_MENU
- | MenuHelper.INCLUDE_SHARE_MENU
- | MenuHelper.INCLUDE_SET_MENU
- | MenuHelper.INCLUDE_VIEWPLAY_MENU;
-
- mImageMenuRunnable = MenuHelper.addImageMenuItems(
- menu,
- MenuHelper.INCLUDE_ALL & ~sideButtons,
- ReviewImage.this,
- mHandler,
- mDeletePhotoRunnable,
- new MenuHelper.MenuInvoker() {
- public void run(final MenuHelper.MenuCallback cb) {
- if (mPaused) return;
- IImage image = mAllImages.getImageAt(mCurrentPosition);
- Uri uri = image.fullSizeImageUri();
- cb.run(uri, image);
-
- mImageView.clear();
- setImage(mCurrentPosition, false);
- }
- });
-
- return true;
- }
-
- protected Runnable mDeletePhotoRunnable = new Runnable() {
- public void run() {
- mAllImages.removeImageAt(mCurrentPosition);
- if (mAllImages.getCount() == 0) {
- finish();
- return;
- } else {
- if (mCurrentPosition == mAllImages.getCount()) {
- mCurrentPosition -= 1;
- }
- }
- mImageView.clear();
- mCache.clear(); // Because the position number is changed.
- setImage(mCurrentPosition, true);
- }
- };
-
- @Override
- public boolean onPrepareOptionsMenu(Menu menu) {
- super.onPrepareOptionsMenu(menu);
- if (mPaused) return false;
-
- IImage image = mAllImages.getImageAt(mCurrentPosition);
- if (mImageMenuRunnable != null) {
- mImageMenuRunnable.gettingReadyToOpen(menu, image);
- }
-
- Uri uri = mAllImages.getImageAt(mCurrentPosition).fullSizeImageUri();
- MenuHelper.enableShareMenuItem(menu, MenuHelper.isWhiteListUri(uri));
-
- MenuHelper.enableShowOnMapMenuItem(menu,
- MenuHelper.hasLatLngData(image));
-
- return true;
- }
-
- @Override
- public boolean onMenuItemSelected(int featureId, MenuItem item) {
- boolean b = super.onMenuItemSelected(featureId, item);
- if (mImageMenuRunnable != null) {
- mImageMenuRunnable.aboutToCall(item,
- mAllImages.getImageAt(mCurrentPosition));
- }
- return b;
- }
-
- void setImage(int pos, boolean showControls) {
- mCurrentPosition = pos;
-
- Bitmap b = mCache.getBitmap(pos);
- if (b != null) {
- IImage image = mAllImages.getImageAt(pos);
- mImageView.setImageRotateBitmapResetBase(
- new RotateBitmap(b, image.getDegreesRotated()), true);
- updateZoomButtonsEnabled();
- }
-
- ImageGetterCallback cb = new ImageGetterCallback() {
- public void completed() {
- }
-
- public boolean wantsThumbnail(int pos, int offset) {
- return !mCache.hasBitmap(pos + offset);
- }
-
- public boolean wantsFullImage(int pos, int offset) {
- return offset == 0;
- }
-
- public int fullImageSizeToUse(int pos, int offset) {
- // this number should be bigger so that we can zoom. we may
- // need to get fancier and read in the fuller size image as the
- // user starts to zoom.
- // Originally the value is set to 480 in order to avoid OOM.
- // Now we set it to 2048 because of using
- // native memory allocation for Bitmaps.
- final int imageViewSize = 2048;
- return imageViewSize;
- }
-
- public int [] loadOrder() {
- return sOrderAdjacents;
- }
-
- public void imageLoaded(int pos, int offset, RotateBitmap bitmap,
- boolean isThumb) {
- // shouldn't get here after onPause()
-
- // We may get a result from a previous request. Ignore it.
- if (pos != mCurrentPosition) {
- bitmap.recycle();
- return;
- }
-
- if (isThumb) {
- mCache.put(pos + offset, bitmap.getBitmap());
- }
- if (offset == 0) {
- // isThumb: We always load thumb bitmap first, so we will
- // reset the supp matrix for then thumb bitmap, and keep
- // the supp matrix when the full bitmap is loaded.
- mImageView.setImageRotateBitmapResetBase(bitmap, isThumb);
- updateZoomButtonsEnabled();
- }
- }
- };
-
- // Could be null if we're stopping a slide show in the course of pausing
- if (mGetter != null) {
- mGetter.setPosition(pos, cb, mAllImages, mHandler);
- }
- updateActionIcons();
- if (showControls) showOnScreenControls();
- scheduleDismissOnScreenControls();
- }
-
- @Override
- public void onCreate(Bundle instanceState) {
- super.onCreate(instanceState);
-
- Intent intent = getIntent();
- mFullScreenInNormalMode = intent.getBooleanExtra(
- MediaStore.EXTRA_FULL_SCREEN, true);
-
- setDefaultKeyMode(DEFAULT_KEYS_SHORTCUT);
- requestWindowFeature(Window.FEATURE_NO_TITLE);
- setContentView(R.layout.review_image);
-
- mRootView = findViewById(R.id.root);
- mControlBar = findViewById(R.id.control_bar);
- mImageView = (ImageViewTouch2) findViewById(R.id.image);
- mImageView.setEnableTrackballScroll(true);
- mCache = new BitmapCache(3);
- mImageView.setRecycler(mCache);
-
- ((PreviewFrameLayout) findViewById(
- R.id.frame_layout)).setAspectRatio(ASPECT_RATIO);
-
-
- makeGetter();
-
- mSlideShowImageViews[0] =
- (ImageViewTouchBase) findViewById(R.id.image1_slideShow);
- mSlideShowImageViews[1] =
- (ImageViewTouchBase) findViewById(R.id.image2_slideShow);
- for (ImageViewTouchBase v : mSlideShowImageViews) {
- v.setVisibility(View.INVISIBLE);
- v.setRecycler(mCache);
- }
-
- mParam = getIntent().getParcelableExtra(KEY_IMAGE_LIST);
-
- if (instanceState != null) {
- mSavedUri = instanceState.getParcelable(STATE_URI);
- mShowControls = instanceState.getBoolean(STATE_SHOW_CONTROLS, true);
- } else {
- mSavedUri = getIntent().getData();
- }
-
- int[] reviewIds = {R.id.btn_delete, R.id.btn_share, R.id.btn_set_as,
- R.id.btn_play, R.id.btn_done};
- for (int id : reviewIds) {
- View view = mControlBar.findViewById(id);
- view.setOnClickListener(this);
- // Set the LinearLayout of the given button to visible
- ((View) view.getParent()).setVisibility(View.VISIBLE);
- }
-
- if (mFullScreenInNormalMode) {
- getWindow().addFlags(
- WindowManager.LayoutParams.FLAG_FULLSCREEN);
- }
-
- setupOnScreenControls(findViewById(R.id.mainPanel), mImageView);
- }
-
- private void setButtonPanelVisibility(int id, int visibility) {
- View button = mControlBar.findViewById(id);
- ((View) button.getParent()).setVisibility(visibility);
- }
-
- private void updateActionIcons() {
-
- IImage image = mAllImages.getImageAt(mCurrentPosition);
- if (image instanceof VideoObject) {
- setButtonPanelVisibility(R.id.btn_set_as, View.GONE);
- setButtonPanelVisibility(R.id.btn_play, View.VISIBLE);
- } else {
- setButtonPanelVisibility(R.id.btn_set_as, View.VISIBLE);
- setButtonPanelVisibility(R.id.btn_play, View.GONE);
- }
- }
-
- private void makeGetter() {
- mGetter = new ImageGetter(getContentResolver());
- }
-
- private IImageList buildImageListFromUri(Uri uri) {
- int sort = ImageManager.SORT_ASCENDING;
- return ImageManager.makeImageList(getContentResolver(), uri, sort);
- }
-
- private boolean init(Uri uri) {
- if (uri == null) return false;
- mAllImages = (mParam == null)
- ? buildImageListFromUri(uri)
- : ImageManager.makeImageList(getContentResolver(), mParam);
- IImage image = mAllImages.getImageForUri(uri);
- if (image == null) return false;
- mCurrentPosition = mAllImages.getImageIndex(image);
- return true;
- }
-
- private Uri getCurrentUri() {
- if (mAllImages.getCount() == 0) return null;
- IImage image = mAllImages.getImageAt(mCurrentPosition);
- return image.fullSizeImageUri();
- }
-
- @Override
- public void onSaveInstanceState(Bundle b) {
- super.onSaveInstanceState(b);
- b.putParcelable(STATE_URI,
- mAllImages.getImageAt(mCurrentPosition).fullSizeImageUri());
- b.putBoolean(STATE_SHOW_CONTROLS, mShowControls);
- }
-
- @Override
- public void onStart() {
- super.onStart();
- mPaused = false;
-
- if (!init(mSavedUri)) {
- Log.w(TAG, "init failed: " + mSavedUri);
- finish();
- return;
- }
-
- // normally this will never be zero but if one "backs" into this
- // activity after removing the sdcard it could be zero. in that
- // case just "finish" since there's nothing useful that can happen.
- int count = mAllImages.getCount();
- if (count == 0) {
- finish();
- return;
- } else if (count <= mCurrentPosition) {
- mCurrentPosition = count - 1;
- }
-
- if (mGetter == null) {
- makeGetter();
- }
-
- //show controls only for first time
- setImage(mCurrentPosition, mShowControls);
- mShowControls = false;
- }
-
- @Override
- public void onStop() {
- super.onStop();
- mPaused = true;
-
- // mGetter could be null if we call finish() and leave early in
- // onStart().
- if (mGetter != null) {
- mGetter.cancelCurrent();
- mGetter.stop();
- mGetter = null;
- }
-
- // removing all callback in the message queue
- mHandler.removeAllGetterCallbacks();
-
- if (mAllImages != null) {
- mSavedUri = getCurrentUri();
- mAllImages.close();
- mAllImages = null;
- }
-
- hideOnScreenControls();
- mImageView.clear();
- mCache.clear();
-
- for (ImageViewTouchBase iv : mSlideShowImageViews) {
- iv.clear();
- }
- }
-
- private void startShareMediaActivity(IImage image) {
- boolean isVideo = image instanceof VideoObject;
- Intent intent = new Intent();
- intent.setAction(Intent.ACTION_SEND);
- intent.setType(image.getMimeType());
- intent.putExtra(Intent.EXTRA_STREAM, image.fullSizeImageUri());
- try {
- startActivity(Intent.createChooser(intent, getText(
- isVideo ? R.string.sendVideo : R.string.sendImage)));
- } catch (android.content.ActivityNotFoundException ex) {
- Toast.makeText(this, isVideo
- ? R.string.no_way_to_share_image
- : R.string.no_way_to_share_video,
- Toast.LENGTH_SHORT).show();
- }
- }
-
- private void startPlayVideoActivity() {
- IImage image = mAllImages.getImageAt(mCurrentPosition);
- Intent intent = new Intent(
- Intent.ACTION_VIEW, image.fullSizeImageUri());
- try {
- startActivity(intent);
- } catch (android.content.ActivityNotFoundException ex) {
- Log.e(TAG, "Couldn't view video " + image.fullSizeImageUri(), ex);
- }
- }
-
- public void onClick(View v) {
- switch (v.getId()) {
- case R.id.btn_delete:
- MenuHelper.deleteImage(this, mDeletePhotoRunnable,
- mAllImages.getImageAt(mCurrentPosition));
- break;
- case R.id.btn_play:
- startPlayVideoActivity();
- break;
- case R.id.btn_share: {
- IImage image = mAllImages.getImageAt(mCurrentPosition);
- if (!MenuHelper.isWhiteListUri(image.fullSizeImageUri())) {
- return;
- }
- startShareMediaActivity(image);
- break;
- }
- case R.id.btn_set_as: {
- IImage image = mAllImages.getImageAt(mCurrentPosition);
- Intent intent = Util.createSetAsIntent(image);
- try {
- startActivity(Intent.createChooser(
- intent, getText(R.string.setImage)));
- } catch (android.content.ActivityNotFoundException ex) {
- Toast.makeText(this, R.string.no_way_to_share_video,
- Toast.LENGTH_SHORT).show();
- }
- break;
- }
- case R.id.btn_done:
- finish();
- break;
- case R.id.next_image:
- moveNextOrPrevious(1);
- break;
- case R.id.prev_image:
- moveNextOrPrevious(-1);
- break;
- }
- }
-
- private void moveNextOrPrevious(int delta) {
- int nextImagePos = mCurrentPosition + delta;
- if ((0 <= nextImagePos) && (nextImagePos < mAllImages.getCount())) {
- setImage(nextImagePos, true);
- showOnScreenControls();
- }
- }
-
- @Override
- protected void onActivityResult(int requestCode, int resultCode,
- Intent data) {
- switch (requestCode) {
- case MenuHelper.RESULT_COMMON_MENU_CROP:
- if (resultCode == RESULT_OK) {
- // The CropImage activity passes back the Uri of the
- // cropped image as the Action rather than the Data.
- mSavedUri = Uri.parse(data.getAction());
-
- // if onStart() runs before, then set the returned
- // image as currentImage.
- if (mAllImages != null) {
- IImage image = mAllImages.getImageForUri(mSavedUri);
- // image could be null if SD card is removed.
- if (image == null) {
- finish();
- } else {
- mCurrentPosition = mAllImages.getImageIndex(image);
- setImage(mCurrentPosition, false);
- }
- }
- }
- break;
- }
- }
-}
-
-class ImageViewTouch2 extends ImageViewTouchBase {
- private final ReviewImage mViewImage;
- private boolean mEnableTrackballScroll;
-
- public ImageViewTouch2(Context context) {
- super(context);
- mViewImage = (ReviewImage) context;
- }
-
- public ImageViewTouch2(Context context, AttributeSet attrs) {
- super(context, attrs);
- mViewImage = (ReviewImage) context;
- }
-
- public void setEnableTrackballScroll(boolean enable) {
- mEnableTrackballScroll = enable;
- }
-
- protected void postTranslateCenter(float dx, float dy) {
- super.postTranslate(dx, dy);
- center(true, true);
- }
-
- private static final float PAN_RATE = 20;
-
- // This is the time we allow the dpad to change the image position again.
- private long mNextChangePositionTime;
-
- @Override
- public boolean onKeyDown(int keyCode, KeyEvent event) {
- if (mViewImage.mPaused) return false;
-
- // Don't respond to arrow keys if trackball scrolling is not enabled
- if (!mEnableTrackballScroll) {
- if ((keyCode >= KeyEvent.KEYCODE_DPAD_UP)
- && (keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT)) {
- return super.onKeyDown(keyCode, event);
- }
- }
-
- int current = mViewImage.mCurrentPosition;
-
- int nextImagePos = -2; // default no next image
- try {
- switch (keyCode) {
- case KeyEvent.KEYCODE_DPAD_LEFT: {
- if (getScale() <= 1F && event.getEventTime()
- >= mNextChangePositionTime) {
- nextImagePos = current - 1;
- mNextChangePositionTime = event.getEventTime() + 500;
- } else {
- panBy(PAN_RATE, 0);
- center(true, false);
- }
- return true;
- }
- case KeyEvent.KEYCODE_DPAD_RIGHT: {
- if (getScale() <= 1F && event.getEventTime()
- >= mNextChangePositionTime) {
- nextImagePos = current + 1;
- mNextChangePositionTime = event.getEventTime() + 500;
- } else {
- panBy(-PAN_RATE, 0);
- center(true, false);
- }
- return true;
- }
- case KeyEvent.KEYCODE_DPAD_UP: {
- panBy(0, PAN_RATE);
- center(false, true);
- return true;
- }
- case KeyEvent.KEYCODE_DPAD_DOWN: {
- panBy(0, -PAN_RATE);
- center(false, true);
- return true;
- }
- case KeyEvent.KEYCODE_DEL:
- MenuHelper.deletePhoto(
- mViewImage, mViewImage.mDeletePhotoRunnable);
- break;
- }
- } finally {
- if (nextImagePos >= 0
- && nextImagePos < mViewImage.mAllImages.getCount()) {
- synchronized (mViewImage) {
- mViewImage.setImage(nextImagePos, true);
- }
- } else if (nextImagePos != -2) {
- center(true, true);
- }
- }
-
- return super.onKeyDown(keyCode, event);
- }
-}
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