RecyclerView 滑動(dòng)時(shí)的優(yōu)化處理

在滑動(dòng)時(shí)停止加載圖片，在滑動(dòng)停止時(shí)開始加載圖片，這里用了Glide.pause 和Glide.resume.這里為了避免重復(fù)設(shè)置增加開銷，設(shè)置了一個(gè)標(biāo)志變量來做判斷。

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);
}
});