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 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();
}
if (mMode == MODE_SLIDESHOW) {
loadNextImage(mCurrentPosition, 0, true);
} else { // MODE_NORMAL
setImage(mCurrentPosition, mShowControls);
mShowControls = false;
}
}
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 moveNextOrPrevious(int delta) {
int nextImagePos = mCurrentPosition + delta;
if ((0 <= nextImagePos) && (nextImagePos < mAllImages.getCount())) {
setImage(nextImagePos, true);
showOnScreenControls();
}
}
private void generateShuffleOrder() {
if (mShuffleOrder == null || mShuffleOrder.length != mAllImages.getCount()) {
mShuffleOrder = new int[mAllImages.getCount()];
for (int i = 0, n = mShuffleOrder.length; i < n; i++) {
mShuffleOrder[i] = i;
}
}
for (int i = mShuffleOrder.length - 1; i >= 0; i--) {
int r = mRandom.nextInt(i + 1);
if (r != i) {
int tmp = mShuffleOrder[r];
mShuffleOrder[r] = mShuffleOrder[i];
mShuffleOrder[i] = tmp;
}
}
}
private Uri getCurrentUri() {
if (mAllImages.getCount() == 0) return null;
IImage image = mAllImages.getImageAt(mCurrentPosition);
if (image == null) return null;
return image.fullSizeImageUri();
}