Question

我需要为不同颜色更改所选列表视图项的颜色。我必须为下面的代码实现更改列表项颜色，但如果我在滚动后选择可见项的第一项，则必须更改每个新显示项的颜色。任何人都可以建议我找到最佳解决方案。

代码段。

@Override
    public void onBindViewHolder(final ViewHolder viewHolder, final int i) {
        PlayListItem nature = mItems.get(i);
        try {
            if (nature.getmInnerTitle() != null && nature.getmInnerTVName() != null) {
                viewHolder.tvInnerTitle.setText(nature.getmInnerTitle());

                mVideoID = nature.getmInnerVideoID();
                Picasso.with(activity)
                        .load(nature.getmInnerThumpnailURL())
               /* .placeholder(R.drawable.my_thumnail_small)*/
                        .into(viewHolder.imgInnerThumbnail);
                viewHolder.tvInnerTVName.setText("by " + nature.getmInnerTVName());
            }
        } catch (NullPointerException e) {
            e.printStackTrace();
        }


        viewHolder.item_view.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                System.out.println("Save Value------Inner-------->" + save);

                Toast.makeText(activity, "Position---->" + i + " Playlist ID : ", Toast.LENGTH_LONG).show();
                // Change BG color for selected List Item

                VideoPlayActivity.mRecyclerView.getChildAt(i).setBackgroundColor(
                        Color.parseColor("#EEEEEE"));

                System.out.println("Save Value------1-------->" + save);
                if (save != -1 && save != i) {
                    VideoPlayActivity.mRecyclerView.getChildAt(save).setBackgroundColor(
                            Color.parseColor("#FFFFFF"));
                    System.out.println("Save Value------2-------->" + save);
                }

                save = i;
                System.out.println("Save Value------3-------->" + save);

            }
        });
        viewHolder.itemView.post(new Runnable() {
            @Override
            public void run() {
                int cellWidth = viewHolder.itemView.getWidth();// this will give you cell width dynamically
                int cellHeight = viewHolder.itemView.getHeight();// this will give you cell height dynamically
                mdynamicHeight.HeightChange(i, cellHeight); //call your iterface hear
            }
        });
    }

Answer 1

是的，最后我得到了答案。这是工作代码段。

  Slider {
        id: slider
        anchors.centerIn: parent
        updateValueWhileDragging:true
        activeFocusOnPress:true

        style: SliderStyle {
            id:sliderStyle

            //Slider handler
            handle: Rectangle {
                id:handler
                width: 22
                height: 44
                radius:2
                antialiasing: true

                Image{
                    source:"icons/slidercenter.png"
                    anchors.centerIn: parent
                }
            }

            //Slider Groove
            groove: Item {
                id:slidergroove
                implicitHeight: 50
                implicitWidth: temperaturePage.width -50

         }
     }
  }

如何更改选定的Recyclerview列表项以标记为不同的颜色

1 个答案: