我需要在列表视图中将每次点击复选框显示TOAST。
这是我的代码：
public class MyListFragment extends Fragment implements
CompoundButton.OnCheckedChangeListener{
ListView lv;
ArrayList<Planet> planetList;
static PlanetAdapter plAdapter;
private TextView txtName;
private TextView txtEmail;
private Button btnLogout;
ListView listView;
String user="";
private Spinner spinner;
String selState;
EditText cristo;
private String zao;
private CheckBox ck;
private SQLiteHandler db;
private SessionManager session;
BirraAdapter biAdapter;
PlanetAdapter.PlanetHolder holder;
private static Context context = null;
private static FragmentActivity mInstance;
Integer[] imageId = {
R.mipmap.androtuto,
R.mipmap.ic_launcher,
R.mipmap.ic_launcher,
R.mipmap.ic_launcher,
R.mipmap.ok,
/*R.drawable.image6,
R.drawable.image7*/
};
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the custom_spinner_items for this fragment
//super.onDestroy();
SharedPreferences settings = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = settings.edit();
editor.clear();
editor.commit();
ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment_list2, container, false);
lv = (ListView) rootView.findViewById(R.id.listview);
ListAdapter listAdapter = new MyListAdapter(getContext());
lv.setAdapter(listAdapter);
context = getActivity();
mInstance = getActivity();
// txtName = (TextView) rootView.findViewById(R.id.name);
// txtEmail = (TextView) rootView.findViewById(R.id.numero_telefonico);
btnLogout = (Button) rootView.findViewById(R.id.btnLogout);
//spinner = (Spinner) rootView.findViewById(R.id.simpleSpinner);
// selState = (String) spinner.getSelectedItem().toString();
//cristo=(EditText)rootView.findViewById(R.id.editText2);
ck=(CheckBox)rootView.findViewById(R.id.chk_box);
return rootView;
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
lv = (ListView)getView().findViewById(R.id.listview);
displayPlanetList();
}
private void displayPlanetList() {
planetList = new ArrayList<Planet>();
planetList.add(new Planet("Margherita", "6", "€","(pomodoro e mozzarella)"));
planetList.add(new Planet("Diavola", "7","€","(pomodoro,mozzarella e salsiccia piccante)"));
planetList.add(new Planet("Bufalina", "5","€","(pomodoro e mozzarella di bufala)"));
planetList.add(new Planet("Marinara", "5", "€","(pomodoro)"));
planetList.add(new Planet("Viennese", "4", "€", "(pomodoro,mozzarella e wrustel)"));
plAdapter = new PlanetAdapter(planetList, getContext(),imageId) {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
int pos = lv.getPositionForView(buttonView);
if (pos != ListView.INVALID_POSITION) {
Planet p = planetList.get(pos);
p.setSelected(isChecked);
/*Toast.makeText(
getActivity(),
"Clicked on Pizza: " + p.getName() + ". State: is "
+ isChecked, Toast.LENGTH_SHORT).show();*/
}
}
};
lv.setAdapter(plAdapter);
}
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
String pizzeOrdinate="";
for (Planet p : plAdapter.getBox()) {
if (p.isSelected()){
pizzeOrdinate+="\n" + p.getName() + " " +p.getTipo() + " " +p.getDistance() + "€" + "q.tà :" + p.getQuantità();
}
}
Toast.makeText(
getActivity(),
"Clicked on Pizza: " + pizzeOrdinate + ". State: is "
+ isChecked, Toast.LENGTH_SHORT).show();
}
@TargetApi(Build.VERSION_CODES.KITKAT)
public String showResultTotale2(View v) {
//selState=cristo.getText().toString();
int totalAmount=0;
String pizzeOrdinate="";
for (Planet p : plAdapter.getBox()) {
if (p.isSelected()){
pizzeOrdinate+="\n" + p.getName() + " " +p.getTipo() + " " +p.getDistance() + "€" + "q.tà :" + p.getQuantità();
}
}
return pizzeOrdinate;
}
方法showResultTotale2（）如果点击按钮就可以工作，但是我希望在每次点击复选框时使用相同的方法。
谁可以帮助我？提前致谢！
ADAPTER CLASS：
public abstract class PlanetAdapter extends ArrayAdapter<Planet> implements CompoundButton.OnCheckedChangeListener, View.OnClickListener
{
private List<Planet> planetList;
private Context context ;
ArrayList<Birra> objects;
public boolean Checked;
private Integer[] imageId;
String ciao;
static PlanetAdapter plAdapter;
String selState ;
/* public PlanetAdapter(Context context) {
super(context, R.layout.single_listview_item);
}
*/
/*public PlanetAdapter(FragmentManager fm,List<Planet> planetList, Context context,Integer[] imageId) {
super(context, R.layout.single_listview_item,planetList);
this.fm=fm;
this.planetList = planetList;
this.context = context;
this.imageId = imageId;
}
*/
public PlanetAdapter(List<Planet> planetList, Context context,Integer[] imageId) {
super(context, R.layout.single_listview_item,planetList);
this.planetList = planetList;
this.context = context;
this.imageId = imageId;
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
}
@Override
public void onClick(View v) {
}
public class PlanetHolder {
public TextView planetName;
public TextView distView;
public TextView valuta;
public CheckBox chkBox;
public EditText edit;
public TextView caratteristica;
public boolean checked;
public TextView id;
public ImageView imageView;
public Spinner spinner;
public EditText edit2;
public Button iterator;
}
@Override
public int getCount() {
return planetList.size();
}
@Override
public Planet getItem(int position) {
return planetList.get(position);
}
@Override
public View getView(final int position, final View convertView, ViewGroup parent) {
View row = convertView;
PlanetHolder holder = null;
if (row == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
row = inflater.inflate(R.layout.single_listview_item, parent, false);
holder = new PlanetHolder();
holder.planetName = (TextView) row.findViewById(R.id.name);
holder.distView = (TextView) row.findViewById(R.id.dist);
holder.valuta = (TextView) row.findViewById(R.id.valuta);
holder.chkBox = (CheckBox) row.findViewById(R.id.chk_box);
holder.edit = (EditText) row.findViewById(R.id.editText);
holder.spinner = (Spinner) row.findViewById(R.id.simpleSpinner);
holder.edit2 = (EditText) row.findViewById(R.id.editText2);
// holder.iterator = (Button) row.findViewById(R.id.iterator);
// Button iterator=(Button) row.findViewById(R.id.iterator);
// iterator.setOnClickListener(this.PlanetHolder);
holder.caratteristica=(TextView) row.findViewById(R.id.caratteristica);
holder.imageView = (ImageView) row.findViewById(R.id.ivImage);
holder.edit.setVisibility(View.GONE);
holder.edit.setEnabled(false);
holder.spinner.setVisibility(View.GONE);
holder.edit.setVisibility(View.GONE);
// holder.id = (TextView) row.findViewById(R.id.id);
row.setTag(holder);
} else {
holder = (PlanetHolder) row.getTag();
}
final Planet p = planetList.get(position);
System.out.println("stampato P" + p);
holder.imageView.setImageResource(imageId[position]);
holder.planetName.setText(p.getName());
holder.distView.setText("" + p.getDistance());
holder.valuta.setText("" + p.getValuta());
holder.chkBox.setChecked(p.isSelected());
holder.chkBox.setTag(p);
holder.caratteristica.setText(p.getCaratteristica());
holder.edit.setEnabled(false);
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
boolean isChecked = states.getBoolean("holder.chkBox" + holder.planetName.getText().toString(), false);
System.out.println(isChecked);
if (isChecked) {
// holder.chkBox.setChecked(true);
holder.edit.setVisibility(View.VISIBLE);
holder.edit.setEnabled(true);
holder.spinner.setVisibility(View.VISIBLE);
holder.edit2.setVisibility(View.VISIBLE);
SharedPreferences statess = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
String string = statess.getString("finalHolder.edit" + holder.planetName.getText().toString(), holder.edit.getText().toString().trim());
holder.edit.setText(string);
} else {
holder.chkBox.setChecked(false);
holder.edit.setVisibility(View.GONE);
holder.edit.setEnabled(false);
holder.spinner.setVisibility(View.GONE);
holder.edit2.setVisibility(View.GONE);
}
final PlanetHolder finalHolder2 = holder;
holder.chkBox.setOnCheckedChangeListener(PlanetAdapter.this);
// final BirraHolder finalHolder = birraHolder;
final PlanetHolder finalHolder = holder;
Planet z=getItem(position);
System.out.println(z);
final PlanetHolder finalHolder1 = holder;
final PlanetHolder finalHolder3 = holder;
holder.chkBox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(final View v) {
if (finalHolder.chkBox.isChecked()) {
finalHolder.edit.setVisibility(View.VISIBLE);
finalHolder.edit.setEnabled(true);
finalHolder.spinner.setVisibility(View.VISIBLE);
finalHolder.edit2.setVisibility(View.VISIBLE);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
getContext(),
R.array.country_arrays,
android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//finalHolder.spinner.setAdapter(adapter);
finalHolder.spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
finalHolder.spinner.setSelection(position);
// selState = finalHolder.spinner.getSelectedItem().toString();
// p.setQuantità(finalHolder.edit.getText().toString().trim());
p.setTipo(finalHolder.spinner.getSelectedItem().toString());
finalHolder.edit2.setText(selState);
// System.out.println(selState);
System.out.println("p.getTipo()"+p.getTipo());
/* Toast.makeText(
getContext(),
"Clicked on Planet: " + selState + "", Toast.LENGTH_SHORT).show();*/
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putBoolean("holder.chkBox" + finalHolder.planetName.getText().toString(), true);
editor.commit();
finalHolder.edit.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
p.setQuantità(finalHolder.edit.getText().toString().trim());
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putString("finalHolder.edit" + finalHolder.planetName.getText().toString(), finalHolder.edit.getText().toString().trim());
editor.commit();
}
});
/* SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putBoolean("holder.chkBox" + finalHolder.planetName.getText().toString(), true);
editor.commit();*/
//Utility.putPizzaItem(p);
//Utility.getPizzaItem(p);
} else {
finalHolder.edit.setVisibility(View.GONE);
finalHolder.edit.setEnabled(false);
finalHolder.edit.setText("");
finalHolder.spinner.setVisibility(View.GONE);
}
}
});
/*holder.chkBox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (finalHolder.chkBox.isChecked()) {
finalHolder.edit.setVisibility(View.VISIBLE);
finalHolder.edit.setEnabled(true);
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putBoolean("holder.chkBox", true);
//pizzaSelected.put(p.getId(), p);
System.out.println(p.getId());
} else {
finalHolder.edit.setVisibility(View.GONE);
finalHolder.edit.setEnabled(false);
finalHolder.edit.setText(null);
pizzaSelected.remove(p.getId());
}
}
});
*/
/* finalHolder.edit.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
p.setQuantità(finalHolder.edit.getText().toString().trim());
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putString("finalHolder.edit" + finalHolder.planetName.getText().toString(), finalHolder.edit.getText().toString().trim());
editor.commit();
}
});
*/
// holder.planetName.setText(p.getName());
// holder.distView.setText("" + p.getDistance());
// holder.valuta.setText("" + p.getValuta());
// holder.chkBox.setChecked(p.isSelected());
// holder.chkBox.setTag(p);
// holder.edit.setEnabled(false);
// holder.id.setId(p.getId());
return row;
}
ArrayList<Planet> getBox() {
ArrayList<Planet> box = new ArrayList<Planet>();
for (Planet p : planetList) {
if (p.isSelected())
box.add(p);
}
return box;
}
}
答案 0 :(得分：0)
我们的想法是为您的适配器提供检查更改侦听器。首先，我们修改适配器构造函数：
public abstract class PlanetAdapter extends ArrayAdapter<Planet> implements View.OnClickListener {
CompoundButton.OnCheckedChangeListener mCheckListener;
public PlanetAdapter(List<Planet> planetList, Context context, Integer[] imageId, CompoundButton.OnCheckedChangeListener checkListener) {
super(context, R.layout.single_listview_item,planetList);
this.planetList = planetList;
this.context = context;
this.imageId = imageId;
this.mCheckListener = checkListener;
}
@Override
public View getView(final int position, final View convertView, ViewGroup parent) {
...
holder.chkBox.setOnCheckedChangeListener(mCheckListener);
...
}
}
现在，在fragment中，将适配器设置为：
plAdapter = new PlanetAdapter(planetList, getContext(),imageId, new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// Do your stuff here
}
});