如何一次在recyclerView中加載所有項目？

Question

我正在嘗試在RecyclerView中RecyclerView所有項目，我的代碼在API 24以下的設備上無法正常工作，這是我的代碼。

這是我的PreCachingLayoutManager類，它擴展了LinearLayoutManager 。

    public class PreCachingLayoutManager extends LinearLayoutManager {
        private static final int DEFAULT_EXTRA_LAYOUT_SPACE = 800;
        private int extraLayoutSpace = -1;
        private Context context;

        public PreCachingLayoutManager(Context context) {
            super(context);
            this.context = context;
        }

        public PreCachingLayoutManager(Context context, int extraLayoutSpace) {
            super(context);
            this.context = context;
            this.extraLayoutSpace = extraLayoutSpace;
        }

        public PreCachingLayoutManager(Context context, int orientation, boolean reverseLayout) {
            super(context, orientation, reverseLayout);
            this.context = context;
        }

        public void setExtraLayoutSpace(int extraLayoutSpace) {
            this.extraLayoutSpace = extraLayoutSpace;
        }

        @Override
        protected int getExtraLayoutSpace(RecyclerView.State state) {
            if (extraLayoutSpace > 0) {
                return extraLayoutSpace;
            }
            return DEFAULT_EXTRA_LAYOUT_SPACE;
        }
    }

這是我的活動代碼

 dealsImagesRecyclerView = 
 findViewById(R.id.dealsImagesRecyclerView);
    layoutManager = new
            PreCachingLayoutManager(this);
    layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
    layoutManager.setExtraLayoutSpace(deviceHeight);
    layoutManager.setItemPrefetchEnabled(true);
    dealsImagesRecyclerView.setLayoutManager(layoutManager);

Answer 1

創建RecycleView是為了優化負載，而不是增加不必要的Iten。

如果您想對所有iten進行充氣，也許您應該使用listview。