Examples with DataSetObserver android.database.DataSetObserver used on opensource projects

Example 1 with DataSetObserver

use of android.database.DataSetObserver in project Launcher3 by chislon.

the class WallpaperPickerActivity method init.

// called by onCreate; this is subclassed to overwrite WallpaperCropActivity
protected void init() {
    setContentView(R.layout.wallpaper_picker);
    mCropView = (CropView) findViewById(R.id.cropView);
    mWallpaperStrip = findViewById(R.id.wallpaper_strip);
    mCropView.setTouchCallback(new CropView.TouchCallback() {

        LauncherViewPropertyAnimator mAnim;

        @Override
        public void onTouchDown() {
            if (mAnim != null) {
                mAnim.cancel();
            }
            if (mWallpaperStrip.getAlpha() == 1f) {
                mIgnoreNextTap = true;
            }
            mAnim = new LauncherViewPropertyAnimator(mWallpaperStrip);
            mAnim.alpha(0f).setDuration(150).addListener(new Animator.AnimatorListener() {

                public void onAnimationStart(Animator animator) {
                }

                public void onAnimationEnd(Animator animator) {
                    mWallpaperStrip.setVisibility(View.INVISIBLE);
                }

                public void onAnimationCancel(Animator animator) {
                }

                public void onAnimationRepeat(Animator animator) {
                }
            });
            mAnim.setInterpolator(new AccelerateInterpolator(0.75f));
            mAnim.start();
        }

        @Override
        public void onTouchUp() {
            mIgnoreNextTap = false;
        }

        @Override
        public void onTap() {
            boolean ignoreTap = mIgnoreNextTap;
            mIgnoreNextTap = false;
            if (!ignoreTap) {
                if (mAnim != null) {
                    mAnim.cancel();
                }
                mWallpaperStrip.setVisibility(View.VISIBLE);
                mAnim = new LauncherViewPropertyAnimator(mWallpaperStrip);
                mAnim.alpha(1f).setDuration(150).setInterpolator(new DecelerateInterpolator(0.75f));
                mAnim.start();
            }
        }
    });
    mThumbnailOnClickListener = new OnClickListener() {

        public void onClick(View v) {
            if (mActionMode != null) {
                // When CAB is up, clicking toggles the item instead
                if (v.isLongClickable()) {
                    mLongClickListener.onLongClick(v);
                }
                return;
            }
            WallpaperTileInfo info = (WallpaperTileInfo) v.getTag();
            if (info.isSelectable()) {
                if (mSelectedThumb != null) {
                    mSelectedThumb.setSelected(false);
                    mSelectedThumb = null;
                }
                mSelectedThumb = v;
                v.setSelected(true);
                // TODO: Remove this once the accessibility framework and
                // services have better support for selection state.
                v.announceForAccessibility(getString(R.string.announce_selection, v.getContentDescription()));
            }
            info.onClick(WallpaperPickerActivity.this);
        }
    };
    mLongClickListener = new View.OnLongClickListener() {

        // Called when the user long-clicks on someView
        public boolean onLongClick(View view) {
            CheckableFrameLayout c = (CheckableFrameLayout) view;
            c.toggle();
            if (mActionMode != null) {
                mActionMode.invalidate();
            } else {
                // Start the CAB using the ActionMode.Callback defined below
                mActionMode = startActionMode(mActionModeCallback);
                int childCount = mWallpapersView.getChildCount();
                for (int i = 0; i < childCount; i++) {
                    mWallpapersView.getChildAt(i).setSelected(false);
                }
            }
            return true;
        }
    };
    // Populate the built-in wallpapers
    ArrayList<ResourceWallpaperInfo> wallpapers = findBundledWallpapers();
    mWallpapersView = (LinearLayout) findViewById(R.id.wallpaper_list);
    BuiltInWallpapersAdapter ia = new BuiltInWallpapersAdapter(this, wallpapers);
    populateWallpapersFromAdapter(mWallpapersView, ia, false, true);
    // Populate the saved wallpapers
    mSavedImages = new SavedWallpaperImages(this);
    mSavedImages.loadThumbnailsAndImageIdList();
    populateWallpapersFromAdapter(mWallpapersView, mSavedImages, true, true);
    // Populate the live wallpapers
    final LinearLayout liveWallpapersView = (LinearLayout) findViewById(R.id.live_wallpaper_list);
    final LiveWallpaperListAdapter a = new LiveWallpaperListAdapter(this);
    a.registerDataSetObserver(new DataSetObserver() {

        public void onChanged() {
            liveWallpapersView.removeAllViews();
            populateWallpapersFromAdapter(liveWallpapersView, a, false, false);
            initializeScrollForRtl();
            updateTileIndices();
        }
    });
    // Populate the third-party wallpaper pickers
    final LinearLayout thirdPartyWallpapersView = (LinearLayout) findViewById(R.id.third_party_wallpaper_list);
    final ThirdPartyWallpaperPickerListAdapter ta = new ThirdPartyWallpaperPickerListAdapter(this);
    populateWallpapersFromAdapter(thirdPartyWallpapersView, ta, false, false);
    // Add a tile for the Gallery
    LinearLayout masterWallpaperList = (LinearLayout) findViewById(R.id.master_wallpaper_list);
    FrameLayout pickImageTile = (FrameLayout) getLayoutInflater().inflate(R.layout.wallpaper_picker_image_picker_item, masterWallpaperList, false);
    setWallpaperItemPaddingToZero(pickImageTile);
    masterWallpaperList.addView(pickImageTile, 0);
    // Make its background the last photo taken on external storage
    Bitmap lastPhoto = getThumbnailOfLastPhoto();
    if (lastPhoto != null) {
        ImageView galleryThumbnailBg = (ImageView) pickImageTile.findViewById(R.id.wallpaper_image);
        galleryThumbnailBg.setImageBitmap(getThumbnailOfLastPhoto());
        int colorOverlay = getResources().getColor(R.color.wallpaper_picker_translucent_gray);
        galleryThumbnailBg.setColorFilter(colorOverlay, PorterDuff.Mode.SRC_ATOP);
    }
    PickImageInfo pickImageInfo = new PickImageInfo();
    pickImageTile.setTag(pickImageInfo);
    pickImageInfo.setView(pickImageTile);
    pickImageTile.setOnClickListener(mThumbnailOnClickListener);
    pickImageInfo.setView(pickImageTile);
    updateTileIndices();
    // Update the scroll for RTL
    initializeScrollForRtl();
    // Create smooth layout transitions for when items are deleted
    final LayoutTransition transitioner = new LayoutTransition();
    transitioner.setDuration(200);
    transitioner.setStartDelay(LayoutTransition.CHANGE_DISAPPEARING, 0);
    transitioner.setAnimator(LayoutTransition.DISAPPEARING, null);
    mWallpapersView.setLayoutTransition(transitioner);
    // Action bar
    // Show the custom action bar view
    final ActionBar actionBar = getActionBar();
    actionBar.setCustomView(R.layout.actionbar_set_wallpaper);
    actionBar.getCustomView().setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            if (mSelectedThumb != null) {
                WallpaperTileInfo info = (WallpaperTileInfo) mSelectedThumb.getTag();
                info.onSave(WallpaperPickerActivity.this);
            }
        }
    });
    // CAB for deleting items
    mActionModeCallback = new ActionMode.Callback() {

        // Called when the action mode is created; startActionMode() was called
        @Override
        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
            // Inflate a menu resource providing context menu items
            MenuInflater inflater = mode.getMenuInflater();
            inflater.inflate(R.menu.cab_delete_wallpapers, menu);
            return true;
        }

        private int numCheckedItems() {
            int childCount = mWallpapersView.getChildCount();
            int numCheckedItems = 0;
            for (int i = 0; i < childCount; i++) {
                CheckableFrameLayout c = (CheckableFrameLayout) mWallpapersView.getChildAt(i);
                if (c.isChecked()) {
                    numCheckedItems++;
                }
            }
            return numCheckedItems;
        }

        // Called each time the action mode is shown. Always called after onCreateActionMode,
        // but may be called multiple times if the mode is invalidated.
        @Override
        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
            int numCheckedItems = numCheckedItems();
            if (numCheckedItems == 0) {
                mode.finish();
                return true;
            } else {
                mode.setTitle(getResources().getQuantityString(R.plurals.number_of_items_selected, numCheckedItems, numCheckedItems));
                return true;
            }
        }

        // Called when the user selects a contextual menu item
        @Override
        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
            int itemId = item.getItemId();
            if (itemId == R.id.menu_delete) {
                int childCount = mWallpapersView.getChildCount();
                ArrayList<View> viewsToRemove = new ArrayList<View>();
                for (int i = 0; i < childCount; i++) {
                    CheckableFrameLayout c = (CheckableFrameLayout) mWallpapersView.getChildAt(i);
                    if (c.isChecked()) {
                        WallpaperTileInfo info = (WallpaperTileInfo) c.getTag();
                        info.onDelete(WallpaperPickerActivity.this);
                        viewsToRemove.add(c);
                    }
                }
                for (View v : viewsToRemove) {
                    mWallpapersView.removeView(v);
                }
                updateTileIndices();
                // Action picked, so close the CAB
                mode.finish();
                return true;
            } else {
                return false;
            }
        }

        // Called when the user exits the action mode
        @Override
        public void onDestroyActionMode(ActionMode mode) {
            int childCount = mWallpapersView.getChildCount();
            for (int i = 0; i < childCount; i++) {
                CheckableFrameLayout c = (CheckableFrameLayout) mWallpapersView.getChildAt(i);
                c.setChecked(false);
            }
            mSelectedThumb.setSelected(true);
            mActionMode = null;
        }
    };
}

Example 2 with DataSetObserver

use of android.database.DataSetObserver in project UltimateAndroid by cymcsg.

the class BaseSuperAbsListview method setAdapter.

/**
     * Set the adapter to the listview
     * Automativally hide the progressbar
     * Set the refresh to false
     * If adapter is empty, then the emptyview is shown
     *
     * @param adapter
     */
public void setAdapter(ListAdapter adapter) {
    mProgress.setVisibility(View.GONE);
    if (mEmpty != null && mEmptyId != 0)
        mList.setEmptyView(mEmpty);
    mList.setVisibility(View.VISIBLE);
    mPtrLayout.setRefreshing(false);
    adapter.registerDataSetObserver(new DataSetObserver() {

        @Override
        public void onChanged() {
            super.onChanged();
            mProgress.setVisibility(View.GONE);
            isLoadingMore = false;
            mPtrLayout.setRefreshing(false);
            if (mList.getAdapter().getCount() == 0 && mEmptyId != 0) {
                mEmpty.setVisibility(View.VISIBLE);
            } else if (mEmptyId != 0) {
                mEmpty.setVisibility(View.GONE);
            }
        }
    });
    if ((adapter == null || adapter.getCount() == 0) && mEmptyId != 0) {
        mEmpty.setVisibility(View.VISIBLE);
    }
}

Example 3 with DataSetObserver

use of android.database.DataSetObserver in project MaterialList by dexafree.

the class ListCardProvider method render.

@Override
public void render(@NonNull final View view, @NonNull final Card card) {
    super.render(view, card);
    if (getAdapter() != null) {
        final ListView listView = (ListView) view.findViewById(R.id.listView);
        listView.setScrollbarFadingEnabled(true);
        listView.setOnTouchListener(new View.OnTouchListener() {

            @Override
            public boolean onTouch(View v, MotionEvent event) {
                // That the gesture detection is correct
                return false;
            }
        });
        listView.setAdapter(getAdapter());
        listView.getAdapter().registerDataSetObserver(new DataSetObserver() {

            @Override
            public void onChanged() {
                super.onChanged();
                calculateListHeight(listView);
            }
        });
        listView.setOnItemClickListener(getOnItemClickListener());
        calculateListHeight(listView);
    }
}

Example 4 with DataSetObserver

use of android.database.DataSetObserver in project android_frameworks_base by ParanoidAndroid.

the class RecentsVerticalScrollView method setAdapter.

public void setAdapter(TaskDescriptionAdapter adapter) {
    mAdapter = adapter;
    mAdapter.registerDataSetObserver(new DataSetObserver() {

        public void onChanged() {
            update();
        }

        public void onInvalidated() {
            update();
        }
    });
    DisplayMetrics dm = getResources().getDisplayMetrics();
    int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(dm.widthPixels, MeasureSpec.AT_MOST);
    int childheightMeasureSpec = MeasureSpec.makeMeasureSpec(dm.heightPixels, MeasureSpec.AT_MOST);
    View child = mAdapter.createView(mLinearLayout);
    child.measure(childWidthMeasureSpec, childheightMeasureSpec);
    mNumItemsInOneScreenful = (int) FloatMath.ceil(dm.heightPixels / (float) child.getMeasuredHeight());
    addToRecycledViews(child);
    for (int i = 0; i < mNumItemsInOneScreenful - 1; i++) {
        addToRecycledViews(mAdapter.createView(mLinearLayout));
    }
}

Example 5 with DataSetObserver

use of android.database.DataSetObserver in project tree-view-list-android by Polidea.

the class InMemoryTreeStateManager method internalDataSetChanged.

private synchronized void internalDataSetChanged() {
    visibleListCache = null;
    unmodifiableVisibleList = null;
    for (final DataSetObserver observer : observers) {
        observer.onChanged();
    }
}