Examples with Adapter android.support.v7.widget.RecyclerView.Adapter used on opensource projects

Example 1 with Adapter

use of android.support.v7.widget.RecyclerView.Adapter in project MultiType by drakeet.

the class MultiSelectActivity method onCreate.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_multi_select);
    RecyclerView recyclerView = (RecyclerView) findViewById(R.id.list);
    final GridLayoutManager layoutManager = new GridLayoutManager(this, SPAN_COUNT);
    layoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {

        @Override
        public int getSpanSize(int position) {
            return (items.get(position) instanceof Category) ? SPAN_COUNT : 1;
        }
    });
    selectedSet = new TreeSet<>();
    recyclerView.setLayoutManager(layoutManager);
    adapter = new MultiTypeAdapter();
    adapter.applyGlobalMultiTypePool();
    adapter.register(Square.class, new SquareViewBinder(selectedSet));
    loadData();
    assertAllRegistered(adapter, items);
    recyclerView.setAdapter(adapter);
    setupFAB();
}

Example 2 with Adapter

use of android.support.v7.widget.RecyclerView.Adapter in project UltimateAndroid by cymcsg.

the class ItemSelectionSupport method setItemChecked.

/**
     * Sets the checked state of the specified position. The is only valid if
     * the choice mode has been set to {@link com.marshalchen.common.uimodule.twowayview.ItemSelectionSupport.ChoiceMode#SINGLE} or
     * {@link com.marshalchen.common.uimodule.twowayview.ItemSelectionSupport.ChoiceMode#MULTIPLE}.
     *
     * @param position The item whose checked state is to be checked
     * @param checked The new checked state for the item
     */
public void setItemChecked(int position, boolean checked) {
    if (mChoiceMode == ChoiceMode.NONE) {
        return;
    }
    final Adapter adapter = mRecyclerView.getAdapter();
    if (mChoiceMode == ChoiceMode.MULTIPLE) {
        boolean oldValue = mCheckedStates.get(position);
        mCheckedStates.put(position, checked);
        if (mCheckedIdStates != null && adapter.hasStableIds()) {
            if (checked) {
                mCheckedIdStates.put(adapter.getItemId(position), position);
            } else {
                mCheckedIdStates.delete(adapter.getItemId(position));
            }
        }
        if (oldValue != checked) {
            if (checked) {
                mCheckedCount++;
            } else {
                mCheckedCount--;
            }
        }
    } else {
        boolean updateIds = mCheckedIdStates != null && adapter.hasStableIds();
        // selected item
        if (checked || isItemChecked(position)) {
            mCheckedStates.clear();
            if (updateIds) {
                mCheckedIdStates.clear();
            }
        }
        // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on
        if (checked) {
            mCheckedStates.put(position, true);
            if (updateIds) {
                mCheckedIdStates.put(adapter.getItemId(position), position);
            }
            mCheckedCount = 1;
        } else if (mCheckedStates.size() == 0 || !mCheckedStates.valueAt(0)) {
            mCheckedCount = 0;
        }
    }
    updateOnScreenCheckedViews();
}

Example 3 with Adapter

use of android.support.v7.widget.RecyclerView.Adapter in project UltimateAndroid by cymcsg.

the class ItemSelectionSupport method onAdapterDataChanged.

public void onAdapterDataChanged() {
    final Adapter adapter = mRecyclerView.getAdapter();
    if (mChoiceMode == ChoiceMode.NONE || adapter == null || !adapter.hasStableIds()) {
        return;
    }
    final int itemCount = adapter.getItemCount();
    // Clear out the positional check states, we'll rebuild it below from IDs.
    mCheckedStates.clear();
    for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) {
        final long currentId = mCheckedIdStates.keyAt(checkedIndex);
        final int currentPosition = mCheckedIdStates.valueAt(checkedIndex);
        final long newPositionId = adapter.getItemId(currentPosition);
        if (currentId != newPositionId) {
            // Look around to see if the ID is nearby. If not, uncheck it.
            final int start = Math.max(0, currentPosition - CHECK_POSITION_SEARCH_DISTANCE);
            final int end = Math.min(currentPosition + CHECK_POSITION_SEARCH_DISTANCE, itemCount);
            boolean found = false;
            for (int searchPos = start; searchPos < end; searchPos++) {
                final long searchId = adapter.getItemId(searchPos);
                if (currentId == searchId) {
                    found = true;
                    mCheckedStates.put(searchPos, true);
                    mCheckedIdStates.setValueAt(checkedIndex, searchPos);
                    break;
                }
            }
            if (!found) {
                mCheckedIdStates.delete(currentId);
                mCheckedCount--;
                checkedIndex--;
            }
        } else {
            mCheckedStates.put(currentPosition, true);
        }
    }
}

Example 4 with Adapter

use of android.support.v7.widget.RecyclerView.Adapter in project UltimateAndroid by cymcsg.

the class TwoWayLayoutManager method handleUpdate.

private void handleUpdate() {
    // Refresh state by requesting layout without changing the
    // first visible position. This will ensure the layout will
    // sync with the adapter changes.
    final int firstPosition = getFirstVisiblePosition();
    final View firstChild = findViewByPosition(firstPosition);
    if (firstChild != null) {
        setPendingScrollPositionWithOffset(firstPosition, getChildStart(firstChild));
    } else {
        setPendingScrollPositionWithOffset(RecyclerView.NO_POSITION, 0);
    }
}

Example 5 with Adapter

use of android.support.v7.widget.RecyclerView.Adapter in project cw-omnibus by commonsguy.

the class MainActivity method onCreate.

@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setLayoutManager(new LinearLayoutManager(this));
    adapter = new IconicAdapter();
    setAdapter(adapter);
}