Android RecyclerView 滑动时图片加载的优化

RecyclerView 滑动时的优化处理

在滑动时停止加载图片，在滑动停止时开始加载图片，这里用了Glide.pause 和Glide.resume.这里为了避免重复设置增加开销，设置了一个标志变量来做判断。

mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
    super.onScrollStateChanged(recyclerView, newState);
    if (newState == RecyclerView.SCROLL_STATE_DRAGGING || newState == RecyclerView.SCROLL_STATE_SETTLING) {
        sIsScrolling = true;
        Glide.with(VipMasterActivity.this).pauseRequests();
    } else if (newState == RecyclerView.SCROLL_STATE_IDLE) {
        if (sIsScrolling == true) {
            Glide.with(VipMasterActivity.this).resumeRequests();
        }
        sIsScrolling = false;
    }
}

@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
    super.onScrolled(recyclerView, dx, dy);
  }
});