我设法按照Google文档设置了一个地图列表，我稍微修改了一下，以便能够扩展卡片，即使我滚动它也会保留。我的问题是，当我滚动时，我觉得卡片的显示有滞后效应。这是一个向您展示的视频：video
有时我会收到此错误E/UncaughtException: java.lang.IllegalArgumentException: Pixel distance must be non-negative
我的CardviewAdapter
public class CardsViewAdapter extends RecyclerView.Adapter<CardsViewAdapter.ViewHolder> {
private List<Game> mDataset;
private int rotationAngle = 0;
// Provide a reference to the views for each data item
// Complex data items may need more than one view per item, and
// you provide access to all the views for a data item in a view holder
static class ViewHolder extends RecyclerView.ViewHolder {
// each data item is just a string in this case
private TextView textView_idGame;
private ImageView imageView_arrow;
private LinearLayout linearlayoutToExpands;
private ConstraintLayout coordinatorLayoutToExpands;
boolean isPopupVisible;
private CardView cardView;
TextView textView_nb_players;
TextView textView_nom_j1, textView_nom_j2, textView_nom_j3, textView_nom_j4, textView_nom_j5;
TextView textView_pts_j1, textView_pts_j2, textView_pts_j3, textView_pts_j4, textView_pts_j5;
TextView textView_date;
Button button_load;
ViewHolder(View v) {
super(v);
textView_idGame = (TextView) v.findViewById(R.id.textView16);
imageView_arrow = (ImageView) v.findViewById(R.id.item_description_game_more);
isPopupVisible = false;
cardView = (CardView) v.findViewById(R.id.cardView);
textView_nb_players = (TextView) v.findViewById(R.id.textView17);
textView_nom_j1 = (TextView) v.findViewById(R.id.textView20);
textView_nom_j2 = (TextView) v.findViewById(R.id.textView21);
textView_nom_j3 = (TextView) v.findViewById(R.id.textView22);
textView_nom_j4 = (TextView) v.findViewById(R.id.textView23);
textView_nom_j5 = (TextView) v.findViewById(R.id.textView24);
textView_pts_j1 = (TextView) v.findViewById(R.id.textView25);
textView_pts_j2 = (TextView) v.findViewById(R.id.textView26);
textView_pts_j3 = (TextView) v.findViewById(R.id.textView27);
textView_pts_j4 = (TextView) v.findViewById(R.id.textView28);
textView_pts_j5 = (TextView) v.findViewById(R.id.textView29);
textView_date = (TextView) v.findViewById(R.id.textView18);
button_load = (Button) v.findViewById(R.id.button10);
coordinatorLayoutToExpands = (ConstraintLayout) v.findViewById(R.id.viewToExpands);
}
}
// Provide a suitable constructor (depends on the kind of dataset)
CardsViewAdapter(List<Game> myDataset) {
mDataset = myDataset;
}
// Create new views (invoked by the layout manager)
@Override
public CardsViewAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
// create a new view
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.cards_resume_game, parent, false);
// set the view's size, margins, paddings and layout parameters
//...
ViewHolder vh = new ViewHolder(v);
return vh;
}
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
// - get element from your dataset at this position
// - replace the contents of the view with that element
final Game game = mDataset.get(position);
Log.d("DEBUG","id game : "+game.getId_game());
//setup idGame
holder.textView_idGame.setText(String.valueOf(game.getId_game()));
holder.textView_nb_players.setText(String.valueOf(game.getNb_joueur()));
holder.textView_date.setText(String.valueOf(game.getDate()).substring(0,5));
//Setup nom pour la view étendue
holder.textView_nom_j1.setText(game.getJ1().getNom());
holder.textView_nom_j2.setText(game.getJ2().getNom());
holder.textView_nom_j3.setText(game.getJ3().getNom());
if (game.getNb_joueur()>=4)
holder.textView_nom_j4.setText(game.getJ4().getNom());
else
holder.textView_nom_j4.setVisibility(View.INVISIBLE);
if (game.getNb_joueur()==5)
holder.textView_nom_j5.setText(game.getJ5().getNom());
else
holder.textView_nom_j5.setVisibility(View.INVISIBLE);
//Setup pts pour la view étendu
holder.textView_pts_j1.setText(String.valueOf(Data.bdd.get_tot_pts_player(game.getId_game(),game.getJ1().getId())));
holder.textView_pts_j2.setText(String.valueOf(Data.bdd.get_tot_pts_player(game.getId_game(),game.getJ2().getId())));
holder.textView_pts_j3.setText(String.valueOf(Data.bdd.get_tot_pts_player(game.getId_game(),game.getJ3().getId())));
if (game.getNb_joueur()>=4)
holder.textView_pts_j4.setText(String.valueOf(Data.bdd.get_tot_pts_player(game.getId_game(),game.getJ4().getId())));
else
holder.textView_pts_j4.setVisibility(View.INVISIBLE);
if (game.getNb_joueur()==5)
holder.textView_pts_j5.setText(String.valueOf(Data.bdd.get_tot_pts_player(game.getId_game(),game.getJ5().getId())));
else
holder.textView_pts_j5.setVisibility(View.INVISIBLE);
// Set the expanded or collapsed mode here
if(game.expanded) {
expandView(holder.coordinatorLayoutToExpands);
holder.imageView_arrow.setRotation(180);
}
else {
collapseView(holder.coordinatorLayoutToExpands);
holder.imageView_arrow.setRotation(0);
}
// Now set the onClickListener like this
holder.imageView_arrow.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Animate the imageView here
animateImageView(holder.imageView_arrow);
// Toggle the expanded attribute value
if(game.expanded) game.expanded = false;
else game.expanded = true;
//Now call notifyDataSetChanged to make the change to effect
refreshList(position);
}
});
holder.button_load.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Data.id_game=game.getId_game();
Data.id_round=game.getMax_id_round();
Data.nb_joueur = game.getNb_joueur();
Data.joueur_1 = game.getJ1().getId();
Data.joueur_2 = game.getJ2().getId();
Data.joueur_3 = game.getJ3().getId();
if(game.getNb_joueur()>=4)
Data.joueur_4 = game.getJ4().getId();
if (game.getNb_joueur()==5)
Data.joueur_5=game.getJ5().getId();
Intent intent = new Intent(holder.button_load.getContext(), ScoreTable.class);
holder.button_load.getContext().startActivity(intent);
}
});
}
// Extra functions inside your adapter class to improve readability
private void collapseView(View v) {
CardsAnimationHelper.collapse(v);
}
private void expandView(View v) {
CardsAnimationHelper.expand(v);
}
private void animateImageView(ImageView imageView) {
ObjectAnimator anim = ObjectAnimator.ofFloat(imageView, "rotation",rotationAngle, rotationAngle + 180);
anim.setDuration(animationDuration);
anim.start();
rotationAngle += 180;
rotationAngle = rotationAngle % 360;
}
private long animationDuration = 500;
private void refreshList(final int position) {
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
notifyItemChanged(position);
}
}, animationDuration);
}
// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
return mDataset.size();
}
答案 0 :(得分：0)
像素距离必须是非负面问题，可能是这个recyclerview错误：