@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2,
float distanceX, float distanceY) {
ImageViewTouch2 imageView = mImageView;
if (imageView.getScale() > 1F) {
imageView.postTranslateCenter(-distanceX, -distanceY);
}
return true;
}
@Override
public boolean onDoubleTap(MotionEvent e) {
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 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();
}
}
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 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[] pickIds = {R.id.attach, R.id.cancel};
int[] reviewIds = {R.id.btn_delete, R.id.btn_share, R.id.btn_set_as,
R.id.btn_play, R.id.btn_done};
int[] connectIds = isPickIntent() ? pickIds : reviewIds;
for (int id : connectIds) {
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);
}
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();
}
private void updateZoomButtonsEnabled() {
ImageViewTouch2 imageView = mImageView;
float scale = imageView.getScale();
mZoomButtonsController.setZoomInEnabled(scale < imageView.mMaxZoom);
mZoomButtonsController.setZoomOutEnabled(scale > 1);
}
