我使用recycleView / CardLayout建立一个简单的应用程序，我跟着this教程。
我看到许多问题已经解决了卡片点击问题，但我需要的是当用户点击标题或用户点击每张卡片中的图片时，处理具有不同操作的听众。
我的问题是，当用户点击一个单选按钮时，我需要在监听器上获取无线电，这样我就可以处理检查和取消选中，因为我需要将其传递给构建器
这就是我现在所拥有的：
public class SimiliarPlantsAdapter extends RecyclerView.Adapter<SimiliarPlantsAdapter.PlantViewHolder>{
ArrayList<Plant> plants = new ArrayList<Plant>();
Context context;
public static class PlantViewHolder extends RecyclerView.ViewHolder {
CardView cv;
TextView plantName;
CheckBox plantCheck;
ImageView plantPhoto;
PlantViewHolder(View itemView) {
super(itemView);
cv = (CardView)itemView.findViewById(R.id.cv);
plantName = (TextView)itemView.findViewById(R.id.plantName);
plantCheck = (CheckBox)itemView.findViewById(R.id.plantCheck);
plantPhoto = (ImageView)itemView.findViewById(R.id.plantPhoto);
}
}
@Override
public PlantViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.similiar_photo_row, viewGroup, false);
PlantViewHolder pvh = new PlantViewHolder(v);
return pvh;
}
@Override
public void onBindViewHolder(PlantViewHolder holder, int position) {
holder.plantName.setText(plants.get(position).getSpecie());
holder.plantCheck.setText("Are you sure this is the plant?");
Log.d("foto",String.valueOf(holder.plantName));
String urlFoto = "http://10.0.2.2:3000/images/" + holder.plantName.getText().toString() + "/Thumbnail.jpg";
Picasso.with(context)
.load(urlFoto)
.resize(250, 250)
.into(holder.plantPhoto);
}
@Override
public int getItemCount() {
return plants.size();
}
public SimiliarPlantsAdapter(ArrayList<Plant> plants,Context context) {
this.plants = plants;
this.context = context;
}
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
}
}
我的活动
public class SimiliarPhotos extends AppCompatActivity implements IResult,SimiliarPlantsAdapter.OnItemClickListener {
RecyclerView rv;
LinearLayoutManager llm;
ArrayList<Plant> plants = new ArrayList<Plant>();
SimiliarPlantsAdapter adapter;
CheckBox checkBox;
VolleyService mVolleyService;
IResult mResultCallback = null;
final String GETREQUEST = "GETCALL";
//login url connection
final String URL = "http://10.0.2.2:3000/plants";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_similiar_photos);
rv = (RecyclerView)findViewById(R.id.rv);
llm = new LinearLayoutManager(this);
llm.setAutoMeasureEnabled(true);
rv.setLayoutManager(llm);
initializeAdapter();
initVolleyCallback();
mVolleyService = new VolleyService(mResultCallback,this);
mVolleyService.getDataVolley(GETREQUEST,URL);
}
@Override
public void notifySuccess(String requestType, JSONObject response) {
Log.d("resposta",response.toString());
}
@Override
public void notifySuccess(String requestType, JSONArray response) {
Log.d("resposta",response.toString());
}
@Override
public void notifyError(String requestType, VolleyError error) {
Log.d("resposta",error.toString());
}
void initVolleyCallback(){
mResultCallback = new IResult() {
@Override
public void notifySuccess(String requestType, JSONObject response) {
}
@Override
public void notifySuccess(String requestType, JSONArray response) {
Plant plant;
Log.d("ENTERED","ENTEREDHERE1");
// iterate over the JSONArray response
for (int i=0; i < response.length(); i++) {
try {
JSONObject object = response.getJSONObject(i); // get the individual object from JSONArray
int id = Integer.parseInt(object.getString("id")); // get the unique identifier from the object
String specie = object.getString("specie"); // get the name of the specie from the object
String description = object.getString("description"); // get the description of the object
plant = new Plant(id,specie,description); // construct the object
Log.d("plant",String.valueOf(plant));
plants.add(plant); // add the object to the arraylist so it can be used on the cardLayout
} catch (JSONException e) {
Log.d("ENTERED",e.toString());
e.printStackTrace();
}
}
adapter.notifyDataSetChanged();
}
@Override
public void notifyError(String requestType, VolleyError error) {
Log.d("resposta",error.toString());
}
};
}
public void initializeAdapter(){
Log.d("plants",String.valueOf(plants.size()));
adapter = new SimiliarPlantsAdapter(plants,SimiliarPhotos.this,SimiliarPhotos.this);
rv.setAdapter(adapter);
}
@Override
public void onTitleClicked(int position, int id, View clickedview) {
}
@Override
public void onImageClicked(int position, View clickedview) {
}
@Override
public void onCheckClicked(int position, String specie, View clickedview) {
adapter.getItemId(position);
CreateDialog(specie);
}
public void CreateDialog(String specie){
AlertDialog.Builder builder;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
builder = new AlertDialog.Builder(SimiliarPhotos.this, android.R.style.Theme_Material_Dialog_Alert);
} else {
builder = new AlertDialog.Builder(SimiliarPhotos.this);
}
builder.setTitle("Esta é a sua escolha?")
.setMessage("Confirma " + specie + " como a planta que fotografou?")
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
//TODO associa nome da planta a fotografia na base de dados
}
})
.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
})
.setIcon(android.R.drawable.ic_dialog_alert)
.show();
}
}
volley init是请求，对问题不是那么重要，因为我正确地获取了数据
答案 0 :(得分：0)
您需要为CheckBox实现CompoundButton.OnCheckedChangeListener。
Your_CHECK_BOX.setOnCheckedChangeListener(checkedChangeListener);
CompoundButton.OnCheckedChangeListener checkedChangeListener = new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
if(compoundButton == YOUR_CHECK_BOX) {
if(isChecked) {
// when check box is checked, call your action listener just like you did for title click/image click etc
} else {
// when check box is unchecked, call your action listener just like you did for title click/image click etc
}
}