我尝试将Databinding和Livedata添加到我的Recyclerview中,我修改的Model变量是GameTitle和LikeCounter,GameTitle使用String,而LikeCounter使用Integer,当我使用观察者更改文本时,String变量正常工作,但是Integer不能't,请帮助我
Model.java
public class ModelSingleHotTrendingNews extends ViewModel implements Serializable {
private String idcontent;
public MutableLiveData<String> gametitle = new MutableLiveData<>();
private String gamedate;
private String gameimage;
private String gamedescription;
private int seencounter;
private int commentcounter;
public MutableLiveData<Integer> likecounter = new MutableLiveData<>();
private int iscomment;
public MutableLiveData<Integer> islike = new MutableLiveData<>();
private int trendingnewssaving;
private String value;
private String message;
public ModelSingleHotTrendingNews() {
}
public ModelSingleHotTrendingNews(MutableLiveData<String> gametitle) {
this.gametitle = gametitle;
}
public ModelSingleHotTrendingNews(String idcontent,String gamedate,String gameimage,String gamedescription,int seencounter,int commentcounter,int iscomment,int trendingnewssaving,String value,String message) {
this.idcontent = idcontent;
this.gamedate = gamedate;
this.gameimage = gameimage;
this.gamedescription = gamedescription;
this.seencounter = seencounter;
this.commentcounter = commentcounter;
this.iscomment = iscomment;
this.trendingnewssaving = trendingnewssaving;
this.value = value;
this.message = message;
}
public MutableLiveData<String> getGametitle() {
gametitle.setvalue(gametitle.getvalue() + "HI");
return gametitle;
}
public void setGametitle(MutableLiveData<String> gametitle) {
this.gametitle = gametitle;
}
public MutableLiveData<Integer> getLikecounter() {
return likecounter;
}
public void setlikecounter(MutableLiveData<Integer> likecounter) {
this.likecounter = likecounter;
}
public MutableLiveData<Integer> getIslike() {
return islike;
}
public void setIslike(MutableLiveData<Integer> islike) {
this.islike = islike;
}
public String getIdcontent() {
return idcontent;
}
public void setIdcontent(String idcontent) {
this.idcontent = idcontent;
}
public String getGamedate() {
return gamedate;
}
public void setGamedate(String gamedate) {
this.gamedate = gamedate;
}
public String getGameimage() {
return gameimage;
}
public void setGameimage(String gameimage) {
this.gameimage = gameimage;
}
public String getGamedescription() {
return gamedescription;
}
public void setGamedescription(String gamedescription) {
this.gamedescription = gamedescription;
}
public int getSeencounter() {
return seencounter;
}
public void setSeencounter(int seencounter) {
this.seencounter = seencounter;
}
public int getcommentcounter() {
return commentcounter;
}
public void setCommentcounter(int commentcounter) {
this.commentcounter = commentcounter;
}
public int getIscomment() {
return iscomment;
}
public void setIscomment(int iscomment) {
this.iscomment = iscomment;
}
public int getTrendingnewssaving() {
return trendingnewssaving;
}
public void setTrendingnewssaving(int trendingnewssaving) {
this.trendingnewssaving = trendingnewssaving;
}
public String getvalue() {
return value;
}
public void setvalue(String value) {
this.value = value;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
Adapter.java
public class AdapterSingleHotTrendingNews extends RecyclerView.Adapter{
private Context mContext;
private ArrayList<ModelSingleHotTrendingNews> modelSingleHotTrendingNews;
private RecyclerViewClicklistener mListener;
public AdapterSingleHotTrendingNews(Context mContext,ArrayList<ModelSingleHotTrendingNews> modelSingleHotTrendingNews,RecyclerViewClicklistener mListener) {
this.mContext = mContext;
this.modelSingleHotTrendingNews = modelSingleHotTrendingNews;
this.mListener = mListener;
}
public void setmodelSingleHotTrendingNewsSD(ArrayList<ModelSingleHotTrendingNews> modelSingleHotTrendingNews) {
this.modelSingleHotTrendingNews = modelSingleHotTrendingNews;
notifyDataSetChanged();
}
//Container
@Override
public SingleHotTrendingNewsViewHolder onCreateViewHolder(ViewGroup viewGroup,int viewType) {
/*View v = LayoutInflater.from(viewGroup.getcontext()).inflate(R.layout.item_single_hottrendingnews,null);
return new SingleHotTrendingNewsViewHolder(v,mListener);*/
View v;
final ItemSingleHottrendingnewsBinding itemSingleHottrendingnewsBinding;
itemSingleHottrendingnewsBinding = DataBindingUtil.inflate(LayoutInflater.from(viewGroup.getcontext()),R.layout.item_single_hottrendingnews,viewGroup,false);
final ModelSingleHotTrendingNews modelSingleHotTrendingNews = new ViewModelProvider((Fragmentactivity) mContext).get(ModelSingleHotTrendingNews.class);
modelSingleHotTrendingNews.gametitle.observe((Fragmentactivity) mContext,new Observer<String>() {
@Override
public void onChanged(String s) {
itemSingleHottrendingnewsBinding.TVGameTitle.setText("The Title : "+s);
}
});
modelSingleHotTrendingNews.likecounter.observe((Fragmentactivity) mContext,new Observer<Integer>() {
@Override
public void onChanged(Integer i) {
itemSingleHottrendingnewsBinding.TVLikeCounter.setText("Total Like :"+i);
}
});
return new SingleHotTrendingNewsViewHolder(itemSingleHottrendingnewsBinding,mListener);
}
//Fill Container with Model Setter Getter
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder,final int position) {
final SingleHotTrendingNewsViewHolder singleHotTrendingNewsViewHolder = (SingleHotTrendingNewsViewHolder) holder;
final ModelSingleHotTrendingNews modelSingleHotTrendingNewsX = modelSingleHotTrendingNews.get(position);
//Set
singleHotTrendingNewsViewHolder.TVGameDate.setText(modelSingleHotTrendingNewsX.getGamedate());
singleHotTrendingNewsViewHolder.TVGameTitle.setText(modelSingleHotTrendingNewsX.gametitle.getvalue());
Glide.with(mContext).load(modelSingleHotTrendingNewsX.getGameimage()).into(singleHotTrendingNewsViewHolder.IMGGameImage);
/*singleHotTrendingNewsViewHolder.IMGGameImage.setImageResource(modelSingleHotTrendingNewsX.getGameimage());*/
singleHotTrendingNewsViewHolder.TVSeenCounter.setText(String.valueOf(modelSingleHotTrendingNewsX.getSeencounter()));
singleHotTrendingNewsViewHolder.TVCommentCounter.setText(String.valueOf(modelSingleHotTrendingNewsX.getcommentcounter()));
/*singleHotTrendingNewsViewHolder.TVLikeCounter.setText(modelSingleHotTrendingNewsX.likecounter.getvalue());*/
if(modelSingleHotTrendingNewsX.getIscomment() == 0){
singleHotTrendingNewsViewHolder.IMGCommentView.setImageResource(R.drawable.comment_off);
}else if(modelSingleHotTrendingNewsX.getIscomment() == 1){
singleHotTrendingNewsViewHolder.IMGCommentView.setImageResource(R.drawable.comment_on);
}
/*if(modelSingleHotTrendingNewsX.getIslike().getvalue().equals(null)){
singleHotTrendingNewsViewHolder.IMGLikeView.setImageResource(R.drawable.heart_off);
}else if(modelSingleHotTrendingNewsX.getIslike().getvalue().equals(1)){
singleHotTrendingNewsViewHolder.IMGLikeView.setImageResource(R.drawable.heart_on);
}*/
if(modelSingleHotTrendingNewsX.getTrendingnewssaving() == 0) {
singleHotTrendingNewsViewHolder.ICONHotTrendingNewsSaving.setImageResource(R.drawable.saved_off);
singleHotTrendingNewsViewHolder.ICONHotTrendingNewsSaving.setVisibility(View.GONE);
}else if(modelSingleHotTrendingNewsX.getTrendingnewssaving() == 1) {
singleHotTrendingNewsViewHolder.ICONHotTrendingNewsSaving.setImageResource(R.drawable.saved_on);
}
singleHotTrendingNewsViewHolder.ICONHotTrendingNewsSaving.setOnClicklistener(new View.OnClicklistener() {
@Override
public void onClick(View v) {
final int booltrendingnewssaving = modelSingleHotTrendingNewsX.getTrendingnewssaving();
final String idcontent = modelSingleHotTrendingNewsX.getIdcontent();
if (booltrendingnewssaving == 1){
Toast.makeText(v.getcontext(),"Turn Off Saved News " + idcontent,Toast.LENGTH_SHORT).show();
singleHotTrendingNewsViewHolder.ICONHotTrendingNewsSaving.setImageResource(R.drawable.saved_off);
modelSingleHotTrendingNewsX.setTrendingnewssaving(0);
/*updateSavedNewsSaving("update_newssaving",id,false);*/
} else if(booltrendingnewssaving == 0) {
Toast.makeText(v.getcontext(),"Turn On Saved News " + idcontent,Toast.LENGTH_SHORT).show();
singleHotTrendingNewsViewHolder.ICONHotTrendingNewsSaving.setImageResource(R.drawable.saved_on);
modelSingleHotTrendingNewsX.setTrendingnewssaving(1);
/*updateSavedNewsSaving("update_newssaving",true);*/
}
}
});
/* Glide.with(mContext)
.load(feedItem.getImageURL())
.diskCacheStrategy(DiskCacheStrategy.ALL)
.centerCrop()
.error(R.drawable.bg)
.into(feedListRowHolder.thumbView);*/
/*singleHotTrendingNewsViewHolder.ROWHotTrendingNewsContainer.setOnClicklistener(new View.OnClicklistener() {
@Override
public void onClick(View v) {
Toast.makeText(v.getcontext(),modelSingleHotTrendingNews.get(position).getGamedescription(),Toast.LENGTH_SHORT).show();
//Passing Data to GameDescriptionactivity
Intent intent = new Intent(mContext,GameDetailactivity.class);
intent.putExtra("ImagePKG",modelSingleHotTrendingNews.get(position).getGameimage());
intent.putExtra("NamePKG",modelSingleHotTrendingNews.get(position).getGamedate());
intent.putExtra("UrlPKG",modelSingleHotTrendingNews.get(position).getIdcontent());
intent.putExtra("DescriptionPKG",modelSingleHotTrendingNews.get(position).getGametitle());
mContext.startactivity(intent);
}
});*/
}
@Override
public int getItemCount() {
int itemCount = modelSingleHotTrendingNews.size();
return itemCount;
}
public void setmodelSingleHotTrendingNews(ArrayList<ModelSingleHotTrendingNews> modelSingleHotTrendingNews) {
this.modelSingleHotTrendingNews = modelSingleHotTrendingNews;
notifyDataSetChanged();
}
public class SingleHotTrendingNewsViewHolder extends RecyclerView.ViewHolder implements View.OnClicklistener{
TextView TVGameDate;
TextView TVGameTitle;
ImageView IMGGameImage;
TextView TVSeenCounter;
TextView TVCommentCounter;
TextView TVLikeCounter;
ImageView IMGSeenView;
ImageView IMGCommentView;
ImageView IMGLikeView;
ImageView ICONHotTrendingNewsSaving;
private RelativeLayout ROWHotTrendingNewsContainer;
private RecyclerViewClicklistener mListener;
//
private ItemSingleHottrendingnewsBinding itemSingleHottrendingnewsBinding;
public SingleHotTrendingNewsViewHolder(ItemSingleHottrendingnewsBinding itemSingleHottrendingnewsBinding,RecyclerViewClicklistener listener) {
super(itemSingleHottrendingnewsBinding.getRoot());
this.itemSingleHottrendingnewsBinding = itemSingleHottrendingnewsBinding;
TVGameDate = itemView.findViewById(R.id.TV_GameDate);
TVGameTitle = itemView.findViewById(R.id.TV_GameTitle);
IMGGameImage = itemView.findViewById(R.id.IMG_GameImage);
TVSeenCounter = itemView.findViewById(R.id.TV_SeenCounter);
TVCommentCounter = itemView.findViewById(R.id.TV_CommentCounter);
TVLikeCounter = itemView.findViewById(R.id.TV_LikeCounter);
IMGSeenView = itemView.findViewById(R.id.IMG_SeenView);
IMGCommentView = itemView.findViewById(R.id.IMG_CommentView);
IMGLikeView = itemView.findViewById(R.id.IMG_LikeView);
ICONHotTrendingNewsSaving = itemView.findViewById(R.id.ICON_HotTrendingNewsSaving);
ROWHotTrendingNewsContainer = itemView.findViewById(R.id.ROW_HotTrendingNewsContainer);
mListener = listener;
ROWHotTrendingNewsContainer.setOnClicklistener(this);
IMGCommentView.setOnClicklistener(this);
IMGLikeView.setOnClicklistener(this);
//
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.ROW_HotTrendingNewsContainer:
mListener.onRowHotTrendingNewsContainerClick(ROWHotTrendingNewsContainer,getadapterPosition());
break;
case R.id.IMG_CommentView:
mListener.onRowCommentViewClick(IMGCommentView,getadapterPosition());
break;
case R.id.IMG_LikeView:
mListener.onRowLikeViewClick(IMGLikeView,getadapterPosition());
break;
default:
break;
}
}
}
public interface RecyclerViewClicklistener {
void onRowHotTrendingNewsContainerClick(View view,int position);
void onRowCommentViewClick(View view,int position);
void onRowLikeViewClick(View view,int position);
}
}
这是问题所在(字符串正常工作)
modelSingleHotTrendingNews.gametitle.observe((Fragmentactivity) mContext,new Observer<Integer>() {
@Override
public void onChanged(Integer i) {
itemSingleHottrendingnewsBinding.TVLikeCounter.setText("Total Like :"+i);
}
});
这是当我更改Mainactivity.java中的值时
ModelSingleHotTrendingNews modelSingleHotTrendingNewsX = ViewModelProviders.of(getactivity()).get(ModelSingleHotTrendingNews.class);
modelSingleHotTrendingNewsX.gametitle.postvalue(ReceivedDummyTitle);
modelSingleHotTrendingNewsX.likecounter.postvalue(ReceivedDummyLike);
这是错误
android.content.res.Resources$NotFoundException: String resource ID #0x0
at android.content.res.Resources.getText(Resources.java:353)
at android.widget.TextView.setText(TextView.java:6123)
at com.indofun.android.indojoy.databinding.ItemSingleHottrendingnewsBindingImpl.executeBindings(ItemSingleHottrendingnewsBindingImpl.java:186)
at androidx.databinding.ViewDataBinding.executeBindingsInternal(ViewDataBinding.java:472)
at androidx.databinding.ViewDataBinding.executePendingBindings(ViewDataBinding.java:444)
at androidx.databinding.ViewDataBinding$7.run(ViewDataBinding.java:196)