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今天就跟大家聊聊有關(guān)怎么在Android中實現(xiàn)抖音上下滑動布局,可能很多人都不太了解,為了讓大家更加了解,小編給大家總結(jié)了以下內(nèi)容,希望大家根據(jù)這篇文章可以有所收獲。
使用RecyclerView+PagerSnapHelper實現(xiàn)
public class DouYinLayoutManager extends LinearLayoutManager implements RecyclerView.OnChildAttachStateChangeListener{ //判斷是否上滑還是下滑 private int mDrift; private OnViewPagerListener onViewPagerListener; //吸頂,吸底 private PagerSnapHelper pagerSnapHelper; public OnViewPagerListener getOnViewPagerListener() { return onViewPagerListener; } public void setOnViewPagerListener(OnViewPagerListener onViewPagerListener) { this.onViewPagerListener = onViewPagerListener; } public DouYinLayoutManager(Context context) { super(context); } public DouYinLayoutManager(Context context, int orientation, boolean reverseLayout) { super(context, orientation, reverseLayout); pagerSnapHelper = new PagerSnapHelper(); } /** * 當manager完全添加到recycleview中是會被調(diào)用 * @param view */ @Override public void onAttachedToWindow(RecyclerView view) { view.addOnChildAttachStateChangeListener(this); pagerSnapHelper.attachToRecyclerView(view); super.onAttachedToWindow(view); } @Override public boolean canScrollVertically() { return super.canScrollVertically(); } @Override public int scrollVerticallyBy(int dy, RecyclerView.Recycler recycler, RecyclerView.State state) { mDrift = dy; return super.scrollVerticallyBy(dy, recycler, state); } @Override public void onChildViewAttachedToWindow(@NonNull View view) { if (mDrift > 0){ //向上滑 if (onViewPagerListener != null && Math.abs(mDrift) == view.getHeight()){ onViewPagerListener.onPageSelected(false,view); } }else { //向下滑 if (onViewPagerListener != null && Math.abs(mDrift) == view.getHeight()){ onViewPagerListener.onPageSelected(true,view); } } } @Override public void onChildViewDetachedFromWindow(@NonNull View view) { if (mDrift >= 0){ //向上滑 if (onViewPagerListener != null){ onViewPagerListener.onPageRelease(true,view); } }else { //向下滑 if (onViewPagerListener != null){ onViewPagerListener.onPageRelease(false,view); } } } @Override public void onScrollStateChanged(int state) { switch (state){ case RecyclerView.SCROLL_STATE_IDLE: //當前顯示的item View snapView = pagerSnapHelper.findSnapView(this); if (onViewPagerListener != null){ onViewPagerListener.onPageSelected(false,snapView); } break; } super.onScrollStateChanged(state); } }
recyclerView.setLayoutManager()即可
recyclerView = findViewById(R.id.recyclerView_dy); douYinLayoutManager = new DouYinLayoutManager(this, OrientationHelper.VERTICAL,false); recyclerView.setLayoutManager(douYinLayoutManager); recyclerView.setAdapter(new MyAdapter()); douYinLayoutManager.setOnViewPagerListener(new OnViewPagerListener() { @Override public void onPageRelease(boolean isNest, View position) { releaseVideo(position); } @Override public void onPageSelected(boolean isButten, View position) { playVideo(position); } }); }
看完上述內(nèi)容,你們對怎么在Android中實現(xiàn)抖音上下滑動布局有進一步的了解嗎?如果還想了解更多知識或者相關(guān)內(nèi)容,請關(guān)注億速云行業(yè)資訊頻道,感謝大家的支持。
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