Examples with ItemTouchHelper android.support.v7.widget.helper.ItemTouchHelper used on opensource projects

Example 86 with ItemTouchHelper

use of android.support.v7.widget.helper.ItemTouchHelper in project mosby by sockeqwe.

the class ShoppingCartOverviewFragment method setUpItemTouchHelper.

private void setUpItemTouchHelper() {
    // 
    // Borrowed from https://github.com/nemanja-kovacevic/recycler-view-swipe-to-delete/blob/master/app/src/main/java/net/nemanjakovacevic/recyclerviewswipetodelete/MainActivity.java
    // 
    ItemTouchHelper.SimpleCallback simpleItemTouchCallback = new ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT) {

        // we want to cache these and not allocate anything repeatedly in the onChildDraw method
        Drawable background;

        Drawable xMark;

        int xMarkMargin;

        boolean initiated;

        private void init() {
            background = new ColorDrawable(ContextCompat.getColor(getActivity(), R.color.delete_background));
            xMark = ContextCompat.getDrawable(getActivity(), R.drawable.ic_remove);
            xMarkMargin = (int) getActivity().getResources().getDimension(R.dimen.ic_clear_margin);
            initiated = true;
        }

        // not important, we don't want drag & drop
        @Override
        public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
            return false;
        }

        @Override
        public void onSwiped(RecyclerView.ViewHolder viewHolder, int swipeDir) {
            int swipedPosition = viewHolder.getAdapterPosition();
            Product productAt = adapter.getProductAt(swipedPosition);
            removeRelay.onNext(productAt);
        }

        @Override
        public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) {
            View itemView = viewHolder.itemView;
            // not sure why, but this method get's called for viewholder that are already swiped away
            if (viewHolder.getAdapterPosition() == -1) {
                // not interested in those
                return;
            }
            if (!initiated) {
                init();
            }
            // draw red background
            background.setBounds(itemView.getRight() + (int) dX, itemView.getTop(), itemView.getRight(), itemView.getBottom());
            background.draw(c);
            // draw x mark
            int itemHeight = itemView.getBottom() - itemView.getTop();
            int intrinsicWidth = xMark.getIntrinsicWidth();
            int intrinsicHeight = xMark.getIntrinsicWidth();
            int xMarkLeft = itemView.getRight() - xMarkMargin - intrinsicWidth;
            int xMarkRight = itemView.getRight() - xMarkMargin;
            int xMarkTop = itemView.getTop() + (itemHeight - intrinsicHeight) / 2;
            int xMarkBottom = xMarkTop + intrinsicHeight;
            xMark.setBounds(xMarkLeft, xMarkTop, xMarkRight, xMarkBottom);
            // xMark.draw(c);
            super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
        }
    };
    ItemTouchHelper mItemTouchHelper = new ItemTouchHelper(simpleItemTouchCallback);
    mItemTouchHelper.attachToRecyclerView(recyclerView);
}

Example 87 with ItemTouchHelper

use of android.support.v7.widget.helper.ItemTouchHelper in project android_packages_apps_Settings by LineageOS.

the class ConditionAdapter method addDismissHandling.

public void addDismissHandling(final RecyclerView recyclerView) {
    final ItemTouchHelper itemTouchHelper = new ItemTouchHelper(mSwipeCallback);
    itemTouchHelper.attachToRecyclerView(recyclerView);
}

Example 88 with ItemTouchHelper

use of android.support.v7.widget.helper.ItemTouchHelper in project CustomViews by AndroidStudy233.

the class RecyclerViewActivity method fillContentView.

private void fillContentView() {
    View view = View.inflate(this, R.layout.layout_recycler_main, null);
    // 初始化SwipeRefreshLayout
    swipe_main = (SwipeRefreshLayout) view.findViewById(R.id.swipe_recycler_main);
    swipe_main.setColorSchemeResources(R.color.swipe_schema_red, swipe_schema_blue, R.color.swipe_schema_green);
    swipe_main.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {

        @Override
        public void onRefresh() {
            MyApplication.getHandler().postDelayed(new Runnable() {

                @Override
                public void run() {
                    showToast("刷新成功~");
                    swipe_main.setRefreshing(false);
                }
            }, 1500);
        }
    });
    // 初始化RecyclerView
    recycler_main = (RecyclerView) view.findViewById(R.id.recycler_recycler_main);
    // 设置布局管理者,采用线性布局管理者,竖直排列,不用反转(反转就是数据反序)
    recycler_main.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));
    adapter = new SimpleRecyclerAdapter(this, new SimpleRecyclerAdapter.OnItemClickListener() {

        @Override
        public void onClick(int position, ImgAndText bean) {
            /*
                    这里有个要注意的地方就是,在adapter中设置侦听的时候你要是用onBindViewHolder方法中的参数position
                    那么remove之后会position错乱BUG.这是RecyclerView的一个大坑...要用holder.getAdapterPosition传递
                 */
            System.arraycopy(hits, 1, hits, 0, hits.length - 1);
            hits[hits.length - 1] = SystemClock.uptimeMillis();
            if (hits[0] >= SystemClock.uptimeMillis() - 500) {
                MyLogUtil.debug("position: " + position);
                adapter.removeItem(position);
            } else {
                ToastUtil.toastShort(RecyclerViewActivity.this, "点击了图片");
            }
        }
    });
    // 设置拖拽监听, 首先定义一个callback定义拖拽功能, callback中定义listener与adapter传递事件
    // 然后将callback传给helper, 并由helper绑定recycle
    ItemTouchHelper.Callback callback = new OnRecyclerItemTouchCallBack(adapter);
    ItemTouchHelper helper = new ItemTouchHelper(callback);
    helper.attachToRecyclerView(recycler_main);
    /*
            细节注意, 上述方式是通过长按条目来实现拖拽, 比如条目右边有个图标, 希望按住图标实现拖拽呢?
            adapter的holder中设置图标触摸事件setOnTouchListener. 这就需要在onTouch方法中调用上面helper的
            onStartDrag方法, 怎么调用呢? adapter定义一个接口OnIconDragHandler. 里边定义
            onHandleDrag(RecyclerView.ViewHolder viewHolder); 然后通过构造传进来.
            这样再让当前activity实现接口, 调用helper的onStartDrag方法. 然后new adapter的时候传过去.
            最后具体一下图标的ouTouch方法
             如果按下
                if (MotionEventCompat.getActionMasked(event) == MotionEvent.ACTION_DOWN){
                    回调RecyclerViewActivity中的onHandleDrag方法
                    让mItemTouchHelper执行拖拽操作
                    handler.startDrag(holder);
                }
         */
    // recycler_main.setAdapter(adapter);
    // 使用第三方库中简单的动画来设置适配器,其对象可以setDuration、setInterpolator,甚至可以继续传入形成装饰者
    // recycler_main.setAdapter(new ScaleInAnimationAdapter(adapter));
    recycler_main.setAdapter(new SlideInLeftAnimationAdapter(adapter));
    /*
            这里有个非常重要的问题,如果你想使用增删动画,那么在增删操作的时候
            你就不能使用notifyDataSetChanged,不然动画不会执行的,需要使用notifyItemRemoved(posi)、notifyItemInserted(posi)
         */
    // 设置条目动画,增删的时候会用到
    SlideInLeftAnimator animator = new SlideInLeftAnimator();
    animator.setInterpolator(new OvershootInterpolator());
    recycler_main.setItemAnimator(animator);
    // 将填充好的View放到主页面上
    frame_main.addView(view);
}

Example 89 with ItemTouchHelper

use of android.support.v7.widget.helper.ItemTouchHelper in project StreetComplete by westnordost.

the class QuestSelectionAdapter method onAttachedToRecyclerView.

@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
    super.onAttachedToRecyclerView(recyclerView);
    ItemTouchHelper ith = new ItemTouchHelper(new TouchHelperCallback());
    ith.attachToRecyclerView(recyclerView);
}

Example 90 with ItemTouchHelper

use of android.support.v7.widget.helper.ItemTouchHelper in project Shuttle by timusus.

the class QueueFragment method onCreateView.

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_queue, container, false);
    unbinder = ButterKnife.bind(this, rootView);
    toolbar.setNavigationOnClickListener(v -> getActivity().onBackPressed());
    toolbar.inflateMenu(R.menu.menu_queue);
    SubMenu sub = toolbar.getMenu().addSubMenu(0, MusicUtils.Defs.ADD_TO_PLAYLIST, 1, R.string.save_as_playlist);
    disposables.add(PlaylistUtils.createUpdatingPlaylistMenu(sub).subscribe());
    toolbar.setOnMenuItemClickListener(toolbarListener);
    recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
    recyclerView.setRecyclerListener(new RecyclerListener());
    recyclerView.setAdapter(adapter);
    itemTouchHelper = new ItemTouchHelper(new ItemTouchHelperCallback((fromPosition, toPosition) -> adapter.moveItem(fromPosition, toPosition), MusicUtils::moveQueueItem, () -> {
    // Nothing to do
    }));
    itemTouchHelper.attachToRecyclerView(recyclerView);
    disposables.add(Aesthetic.get(getContext()).colorPrimary().subscribe(color -> {
        boolean isLight = Util.isColorLight(color);
        lineOne.setTextColor(isLight ? Color.BLACK : Color.WHITE);
        lineTwo.setTextColor(isLight ? Color.BLACK : Color.WHITE);
    }));
    // In landscape, we need to adjust the status bar's translation depending on the slide offset of the sheet
    if (ShuttleUtils.isLandscape()) {
        statusBarView.setTranslationY(ResourceUtils.toPixels(16));
        disposables.add(multiSheetSlideEventRelay.getEvents().filter(multiSheetEvent -> multiSheetEvent.sheet == MultiSheetView.Sheet.SECOND).filter(multiSheetEvent -> multiSheetEvent.slideOffset >= 0).subscribe(multiSheetEvent -> {
            statusBarView.setTranslationY((1 - multiSheetEvent.slideOffset) * ResourceUtils.toPixels(16));
        }));
    }
    setupContextualToolbar();
    queuePresenter = new QueuePresenter(requestManager, cabHelper);
    return rootView;
}