问题：
如何在ListView的每一行中插入微调器
梁晋鹏
如何将微调器插入片段的onCreateView
如果我在下面写一个微调器：
ViewGroup rootView = (ViewGroup)inflater.inflate(R.layout.fragment_list2, container, false);
这将导致Spner的不正确布局，但它是PlanetAdapter中对象的正确布局。
这样，我在列表视图下有旋转器，而我希望旋转器进入列表视图的行视图。Spner进入另一个名为：single_listview_item的布局。
下面您可以看到我到目前为止尝试的内容：
片段：
public class MyListFragment extends Fragment implements
android.widget.CompoundButton.OnCheckedChangeListener,AdapterView.OnItemSelectedListener {
ListView lv;
ArrayList<Planet> planetList;
static PlanetAdapter plAdapter;
private TextView txtName;
private TextView txtEmail;
private Button btnLogout;
private Spinner spinner1;
private Spinner spinner2;
Spinner spinner;
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);
spinner = (Spinner) rootView.findViewById(R.id.simpleSpinner);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this.getContext(),
R.array.country_arrays, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(this);
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);
// SqLite database handler
db = new SQLiteHandler(context.getApplicationContext());
// session manager
session = new SessionManager(context.getApplicationContext());
/*
if (!session.isLoggedIn()) {
logoutUser();
}
*/
// Fetching user details from SQLite
HashMap<String, String> user = db.getUserDetails();
String name = user.get("name");
//String email = user.get("email");
// String email = user.get("email");
String email = user.get("numero_telefonico");
// Displaying the user details on the screen
System.out.println(name + email);
txtName.setText(name);
txtEmail.setText(email);
/* Button mButton = (Button) rootView.findViewById(R.id.button);
mButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
showResult(v);
}
});*/
//return inflater.inflate(R.custom_spinner_items.fragment_list2, container, false);
btnLogout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
logoutUser();
}
});
/* Spinner spinner = (Spinner) getView().findViewById(R.id.simpleSpinner);
ArrayAdapter<String> adapter_state = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, state);
adapter_state
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter_state);
spinner.setOnItemSelectedListener(this);*/
return rootView;
}
飞机捕捉器：
public abstract class PlanetAdapter extends ArrayAdapter<Planet> implements CompoundButton.OnCheckedChangeListener
{
private List<Planet> planetList = null;
private Context context = null;
ArrayList<Birra> objects;
public boolean Checked;
private final Integer[] 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;
}
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;
}
@Override
public int getCount() {
return planetList.size();
}
@Override
public Planet getItem(int position) {
return planetList.get(position);
}
@Override
public View getView(final int position, 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.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.id = (TextView) row.findViewById(R.id.id);
row.setTag(holder);
} else {
holder = (PlanetHolder) row.getTag();
}
final Planet p = planetList.get(position);
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);
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.chkBox.setOnCheckedChangeListener(PlanetAdapter.this);
// final BirraHolder finalHolder = birraHolder;
final PlanetHolder finalHolder = holder;
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);
finalHolder.spinner.setVisibility(View.VISIBLE);
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;
}
}
FRAGMENT_LIST2：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1"
android:layout_marginLeft="5dp"
><!--android:onClick="showResult"-->
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:gravity="center"
android:orientation="horizontal" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/welcome"
android:textSize="20dp"
android:layout_marginLeft="5dp"
/>
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="10dp"
android:textColor="@color/lbl_name"
android:textSize="24dp"
android:layout_marginLeft="5dp"
/>
<Button
android:id="@+id/btnLogout"
android:layout_width="122dp"
android:layout_height="wrap_content"
android:layout_marginRight="40dip"
android:background="@color/btn_logut_bg"
android:text="@string/btn_logout"
android:textAllCaps="false"
android:textColor="@color/white"
android:textSize="15dp"
android:layout_marginLeft="5dp"
/>
</LinearLayout>
<TextView
android:id="@+id/numero_telefonico"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/lbl_name"
android:textSize="13dp" />
<ListView
android:id="@+id/listview"
android:layout_width="fill_parent"
android:layout_height="400dp">
</ListView>
<Spinner
android:id="@+id/simpleSpinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="50dp"
android:entries="@array/country_arrays"/>
<!-- <Button
android:id="@+id/button"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:onClick="showResult"
android:text="get_answer">
</Button>-->
</LinearLayout>
单个列表视图项目：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<CheckBox
android:id="@+id/chk_box"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true" />
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:orientation="vertical"
android:layout_weight="1" >
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@id/chk_box"
android:textStyle="bold"
android:textColor="#000000" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/caratteristica"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/name"
android:layout_toRightOf="@id/chk_box"
android:textStyle="italic" />
</LinearLayout>
<!-- <TextView
android:id="@+id/id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:textSize="12sp"
android:textStyle="italic"/>-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/dist"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/caratteristica"
android:layout_toRightOf="@id/chk_box"
android:textSize="12sp"
android:textStyle="italic" />
<TextView
android:id="@+id/valuta"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:textSize="12sp"
android:textStyle="italic" />
</LinearLayout>
<EditText
android:layout_width="196dp"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="10"
android:id="@+id/editText"
android:hint="quantità"
>
</EditText>
<Spinner
android:id="@+id/simpleSpinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="50dp"
android:entries="@array/country_arrays"/>
</LinearLayout>
<ImageView
android:id="@+id/ivImage"
android:layout_width="72dp"
android:layout_height="72dp"
android:layout_marginRight="5dp"
android:layout_gravity="center"
/>
</LinearLayout>
MyListAdapter：
public class MyListAdapter extends ArrayAdapter implements AdapterView.OnItemSelectedListener {
Spinner spinner;
/*public MyListAdapter(Context context, int textViewResourceId) {
super(context, textViewResourceId);
}*/
public MyListAdapter(Context context) {
super(context, R.layout.single_listview_item);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
System.out.println("ciao");
spinner = (Spinner) convertView.findViewById(R.id.simpleSpinner);
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);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(this);
/*
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
*/
/* @Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
//Spinner spinner = null;
// String selState = (String) ((Spinner) parent).getSelectedItem();
spinner.setSelection(position);
String selState = (String) ( parent).getSelectedItem();
Toast.makeText(
parent.getContext(),
"Clicked on Planet: " + selState + "", Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});*/
return row;
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
spinner.setSelection(position);
String selState = spinner.getSelectedItem().toString();
System.out.println(selState);
Toast.makeText(
getContext(),
"Clicked on Planet: " + selState + "", Toast.LENGTH_SHORT).show();
/* Toast.makeText(parent.getContext(),
"OnItemSelectedListener : " + parent.getItemAtPosition(position).toString(),
Toast.LENGTH_SHORT).show();*/
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
/* @Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String selState = (String) spinner.getSelectedItem();
System.out.println(selState);
Toast.makeText(
getContext(),
"Clicked on Planet: " + selState + "", Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}*/
}
共有1个答案
何乐
如果希望在列表视图的每一行中重复微调器，则应将其放在单个列表视图项目中。xml，不在片段列表2中。xml。然后你通常充气fragment_list2。xml在片段中，查找列表视图（findViewById），实例化适配器，并将其设置到列表视图（setAdapter）。适配器负责加载单个\u列表视图\u项。xml（以及微调器）并设置自己的适配器。你不应该在片段中寻找微调器，因为一旦它被加载，你可以有多个它的实例（每行一个）。
因此，在片段的onCreateView中：
ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment_list2, container, false);
ListView listView = (ListView) rootView.findViewById(R.id.listview);
ListAdapter listAdapter = new MyListAdapter();
listView.setAdapter(listAdapter);
然后，在MyListAdapter的getView方法中：
Spinner spinner = (Spinner) convertView.findViewById(R.id.spinner);
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);
spinner.setAdapter(adapter);
基本上，您必须在另一个适配器中实例化一个适配器，因此您必须创建另一个类（MyListAdapter）。
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