Examples with ISelectionListener com.mikepenz.fastadapter.ISelectionListener used on opensource projects

Example 1 with ISelectionListener

use of com.mikepenz.fastadapter.ISelectionListener in project FastAdapter by mikepenz.

the class ExpandableMultiselectDeleteSampleActivity method onCreate.

@Override
protected void onCreate(Bundle savedInstanceState) {
    findViewById(android.R.id.content).setSystemUiVisibility(findViewById(android.R.id.content).getSystemUiVisibility() | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
    //as we use an icon from Android-Iconics via xml we add the IconicsLayoutInflater
    //https://github.com/mikepenz/Android-Iconics
    LayoutInflaterCompat.setFactory(getLayoutInflater(), new IconicsLayoutInflater(getDelegate()));
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sample);
    // get RecyclerView
    final RecyclerView rv = (RecyclerView) findViewById(R.id.rv);
    // Handle Toolbar
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setTitle(R.string.sample_collapsible);
    //style our ui
    new MaterializeBuilder().withActivity(this).build();
    //create our FastAdapter
    fastItemAdapter = new FastItemAdapter<>();
    fastItemAdapter.withPositionBasedStateManagement(false).withSelectable(true).withMultiSelect(true).withSelectOnLongClick(true).withOnPreClickListener(new FastAdapter.OnClickListener<IItem>() {

        @Override
        public boolean onClick(View v, IAdapter<IItem> adapter, IItem item, int position) {
            //we handle the default onClick behavior for the actionMode. This will return null if it didn't do anything and you can handle a normal onClick
            Boolean res = mActionModeHelper.onClick(ExpandableMultiselectDeleteSampleActivity.this, item);
            // so that the click listener is not fired
            if (res != null && !res)
                return true;
            return res != null ? res : false;
        }
    }).withOnClickListener(new FastAdapter.OnClickListener<IItem>() {

        @Override
        public boolean onClick(View v, IAdapter<IItem> adapter, IItem item, int position) {
            // check if the actionMode consumes the click. This returns true, if it does, false if not
            if (!mActionModeHelper.isActive())
                Toast.makeText(ExpandableMultiselectDeleteSampleActivity.this, ((SimpleSubItem) item).name + " clicked!", Toast.LENGTH_SHORT).show();
            //                        else
            //                            mFastAdapter.notifyItemChanged(position); // im Bsp. ist das nicht nötig, k.A. warum ich das machen muss!
            mRangeSelectorHelper.onClick();
            return false;
        }
    }).withOnPreLongClickListener(new FastAdapter.OnLongClickListener<IItem>() {

        @Override
        public boolean onLongClick(View v, IAdapter<IItem> adapter, IItem item, int position) {
            boolean actionModeWasActive = mActionModeHelper.isActive();
            ActionMode actionMode = mActionModeHelper.onLongClick((AppCompatActivity) ExpandableMultiselectDeleteSampleActivity.this, position);
            mRangeSelectorHelper.onLongClick(position);
            if (actionMode != null) {
                //we want color our CAB
                ExpandableMultiselectDeleteSampleActivity.this.findViewById(R.id.action_mode_bar).setBackgroundColor(UIUtils.getThemeColorFromAttrOrRes(ExpandableMultiselectDeleteSampleActivity.this, R.attr.colorPrimary, R.color.material_drawer_primary));
                // start the drag selection
                mDragSelectTouchListener.startDragSelection(position);
            }
            //if we have no actionMode we do not consume the event
            return actionMode != null && !actionModeWasActive;
        }
    });
    // provide a custom title provider that even shows the count of sub items
    mActionModeHelper = new ActionModeHelper(fastItemAdapter, R.menu.cab, new ActionBarCallBack()).withTitleProvider(new ActionModeHelper.ActionModeTitleProvider() {

        @Override
        public String getTitle(int selected) {
            return selected + "/" + SubItemUtil.countItems(fastItemAdapter.getItemAdapter(), false);
        }
    }).withSupportSubItems(true);
    // this will take care of selecting range of items via long press on the first and afterwards on the last item
    mRangeSelectorHelper = new RangeSelectorHelper(fastItemAdapter).withSavedInstanceState(savedInstanceState).withActionModeHelper(mActionModeHelper);
    // setup the drag select listener and add it to the RecyclerView
    mDragSelectTouchListener = new DragSelectTouchListener().withSelectListener(new DragSelectTouchListener.OnDragSelectListener() {

        @Override
        public void onSelectChange(int start, int end, boolean isSelected) {
            mRangeSelectorHelper.selectRange(start, end, isSelected, true);
            // we handled the long press, so we reset the range selector
            mRangeSelectorHelper.reset();
        }
    });
    rv.addOnItemTouchListener(mDragSelectTouchListener);
    // do basic RecyclerView setup
    rv.setLayoutManager(new LinearLayoutManager(this));
    rv.setItemAnimator(new SlideDownAlphaAnimator());
    rv.setAdapter(fastItemAdapter);
    //fill with some sample data
    List<IItem> items = new ArrayList<>();
    for (int i = 0; i < 20; i++) {
        if (i % 2 == 0) {
            final HeaderSelectionItem expandableItem = new HeaderSelectionItem();
            expandableItem.withSubSelectionProvider(new HeaderSelectionItem.ISubSelectionProvider() {

                @Override
                public int getSelectedSubItems() {
                    return SubItemUtil.countSelectedSubItems(fastItemAdapter, expandableItem);
                }
            }).withName("Test " + (i + 1)).withDescription("ID: " + (i + 1)).withIdentifier(i + 1);
            //.withIsExpanded(true) don't use this in such a setup, use adapter.expand() to expand all items instead
            //add subitems so we can showcase the collapsible functionality
            List<IItem> subItems = new LinkedList<>();
            for (int ii = 1; ii <= 5; ii++) {
                final SimpleSubItem sampleItem = new SimpleSubItem();
                sampleItem.withName("-- Test " + (i + 1) + "." + ii).withDescription("ID: " + (i + 1) * 100 + ii).withIdentifier((i + 1) * 100 + ii);
                subItems.add(sampleItem);
            }
            expandableItem.withSubItems(subItems);
            items.add(expandableItem);
        } else {
            SimpleSubItem sampleItem = new SimpleSubItem();
            sampleItem.withName("Test " + (i + 1)).withDescription("ID: " + (i + 1)).withIdentifier(i + 1);
            items.add(sampleItem);
        }
    }
    fastItemAdapter.add(items);
    fastItemAdapter.expand();
    fastItemAdapter.withSelectionListener(new ISelectionListener() {

        @Override
        public void onSelectionChanged(IItem item, boolean selected) {
            if (item instanceof SimpleSubItem) {
                IItem headerItem = ((SimpleSubItem) item).getParent();
                if (headerItem != null) {
                    int pos = fastItemAdapter.getAdapterPosition(headerItem);
                    // Important: notify the header directly, not via the notifyadapterItemChanged!
                    // we just want to update the view and we are sure, nothing else has to be done
                    fastItemAdapter.notifyItemChanged(pos);
                }
            }
        }
    });
    //restore selections (this has to be done after the items were added
    fastItemAdapter.withSavedInstanceState(savedInstanceState);
    //set the back arrow in the toolbar
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setHomeButtonEnabled(false);
    // restore action mode
    if (savedInstanceState != null)
        mActionModeHelper.checkActionMode(this);
}