我正在使用回收站 View 来显示包含图像网格布局的项目列表。网格布局被动态添加到回收器 View 适配器上“onBindViewHolder”方法内的列表项中。现在的问题是,每次滚动都重新创建网格布局 View 。我不希望这些 View 在滚动时重新创建。怎么处理呢?
这是代码 fragment
@Override
public void onBindViewHolder(final PersonViewHolder personViewHolder, final int i) {
GridLayout feedGrid = new GridLayout(context);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(dipToPixels(context,HomePage.SCREEN_WIDTH),dipToPixels(context,HomePage.SCREEN_WIDTH));
feedGrid.setLayoutParams(layoutParams);
feedGrid.setColumnCount(1);
imgArr = new ImageView[num];
imgArr[0] = new ImageView(context);
GridLayout.Spec row = GridLayout.spec(0, 1);
GridLayout.Spec colspan = GridLayout.spec(0, 1);
GridLayout.LayoutParams gridLayoutParam = new GridLayout.LayoutParams(row, colspan);
gridLayoutParam.setGravity(Gravity.FILL);
Picasso.with(context).load(urlArr.get(0)).error(mDrawable).placeholder(mDrawable).into(imgArr[0], new Callback() {
@Override
public void onSuccess() {
personViewHolder.feedGridLayout.setVisibility(View.VISIBLE);
personViewHolder.loadImg.setVisibility(View.GONE);
}
@Override
public void onError() {
personViewHolder.feedGridLayout.setVisibility(View.GONE);
personViewHolder.loadImg.setVisibility(View.VISIBLE);
}
});
feedGrid.addView(imgArr[0], gridLayoutParam);
personViewHolder.feedGridLayout.removeAllViews();
personViewHolder.feedGridLayout.addView(feedGrid);
}
最佳答案
这就是我解决非常相似的problem的方式。
在您的适配器中,您覆盖onViewRecycled并从那里删除gridLayout的 View ,而不是onBindViewHolder。
@Override
public void onViewRecycled(PersonViewHolder personViewHolder) {
super.onViewRecycled(personViewHolder);
personViewHolder.feedGridLayout.removeAllViews();
}
从onBindViewHolder中删除
personViewHolder.feedGridLayout.removeAllViews();
。让我知道是否可以解决问题。