Android仿抖音上下滑动布局仿抖音上下滑动布局
主要为大家详细介绍了Android仿抖音上下滑动布局,文中示例代码介绍的非常详细,具有一定的参考价值,感
兴趣的小伙伴们可以参考一下
抖音上下滑动,监听播放,自动吸顶,吸底效果,供大家参考,具体内容如下
使用RecyclerView+PagerSnapHelper实现
public class DouYinLayoutManager extends LinearLayoutManager implements RecyclerView.OnChildAttachStateChangeListener{
//判断是否上滑还是下滑
private int mDrift;
private OnViewPagerListener onViewPagerListener;
//吸顶,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();
}
/**
* 当manager完全添加到recycleview中是会被调用
* @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);
}
评论0