mflisar / dragselectrecyclerview Goto Github PK

Since Scroller used to calculate current position which relate to the peogress of scrolling. But in this lib we calculate the speed ourselves. Scroller just be used as a flag to indicate whether is scrolling.

So I think we can simply use a boolean var to take the place of the Scroller. I have already done this and every thing woks well.

I am still not sure if you use it for any other reason.

All I can see in the repo is the library...
Please add the sample
:(

can u please let me know why it's not working in nested scrollview

The library does not support AndroidX Recycler View, this needs to be improved

请问如何滑动就可以被选中和取消选中，而不是长点击之后滑动才能选中和不选中

This can be improved. Sometimes, when redrawing views while scrolling fast, they are creating some not very beautiful "shadow"...

Ideas:

• simply batching the updates of the selection change events and execute them via a handler every 100ms or so?
• make a queue of items to update, iterate over it via a handler every 100ms or so if it is not empty?

Not sure if this is causing the problems though, but as the corresponding function is called on every MotionEvent.ACTION_MOVE it may help...

Currently I am using

mDragSelectionProcessor = new DragSelectionProcessor(new DragSelectionProcessor.ISelectionHandler() {
           @Override
           public HashSet<Integer> getSelection() {
               return mAdapter.getSelection();
           }

           @Override
           public boolean isSelected(int index) {
               return mAdapter.getSelection().contains(index);
           }

           @Override
           public void updateSelection(int start, int end, boolean isSelected, boolean calledFromOnStart) {
               mAdapter.selectRange(start, end, isSelected);
           }
       }).withMode(mMode);

I also tried

mDragSelectionProcessor  = new DragSelectTouchListener.OnAdvancedDragSelectListener()
        {
            @Override
            public void onSelectChange(int start, int end, boolean isSelected) {
                // update your selection
                // range is inclusive start/end positions
                mAdapter.selectRange(start, end, isSelected);
            }

            @Override
            public void onSelectionStarted(int start) {
                // drag selection was started at index start
                Log.e("michaelflisar",start+" Start");
            }

            @Override
            public void onSelectionFinished(int end) {
                Log.e("michaelflisar",end+" End");
                // drag selection was finished at index start
            }
        };

but on using OnAdvancedDragSelectListener() the first cell is not selecting in the sample app you provided

please help me to get only vertical item selection like this using drag only

Hi, thanks for the much useful library!

Here's how to recreate a bug I spotted. (See the Current behavior gif below.)

1. Start the demo app.
2. Long press any tile (for example tile 0 hereafter) to switch to dragselect mode.
   Important: do not perform any drag gesture, just long press tile 0 till it becomes red.
3. Without touching anything else click on tile 0 again.
   This click should deselect tile 0 (make it white again) but right now it does not happen.
4. If tile 0 is clicked on again (two times including step 3) now it is deselected.

Desired behavior should be being able to deselect at the step 3 right?
I think bug is in the following line:

break; needs to be changed to return false;
Right now the function onInterceptTouchEvent will return true in the case MotionEvent.ACTION_DOWN: and the user does not receive an onClick event for the ViewHolder of tile 0 .

Current behavior:

Desired behavior:

How can use drawselectrecylerview with Swipe to refresh layout?

My app uses a collapsing toolbar whith viewpager, but when i start draging when the toolbar is expanded the list not auto scrolls, but when my toolbar is collapsed the list scrolls normally