我的问题是，当我点击单选按钮时，它会在任何位置随机改变微调器值。这里的帮助是我的适配器类..
public class ManageAdapter extends BaseAdapter {
ArrayList<String> _manageArrayList = null;
private Context _Context = null;
private Integer selectedPosition = 0;
String List1[]=new String[]{"In use","Lost" ,"Stolen" , "For sale"};
private int flag = 0;
public ManageAdapter(ArrayList<String> _manageArrayList, Context _Context) {
super();
this._manageArrayList = _manageArrayList;
this._Context = _Context;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return _manageArrayList != null? _manageArrayList.size():0;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
public static class ViewHolder
{
public TextView itemTextView;
public RadioButton myitemButton;
public Spinner inUseSpinner;
public RelativeLayout managelayout;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
final ViewHolder holder;
LayoutInflater inflater = (LayoutInflater)_Context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if(v == null)
{
holder = new ViewHolder();
v = inflater.inflate(R.layout.manage_single_row, null,false);
holder.managelayout = (RelativeLayout)v.findViewById(R.id.single_row_layout);
holder.itemTextView = (TextView)v.findViewById(R.id.item_name_txt);
holder.myitemButton = (RadioButton)v.findViewById(R.id.manage_radio_buton);
holder.inUseSpinner = (Spinner)v.findViewById(R.id.Status_spinner);
v.setTag(holder);
ArrayAdapter<String> Adapter = new ArrayAdapter<String>(_Context,R.layout.spinner_color,List1);
Adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//Setting the ArrayAdapter data on the Spinner
holder.inUseSpinner.setAdapter(Adapter);
}else {
holder = (ViewHolder) v.getTag();
}
holder.itemTextView.setText(_manageArrayList.get(position));
holder.inUseSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long arg3) {
// int getPosition = (Integer) arg0.getTag();
// Toast.makeText(_Context,List1[position] ,Toast.LENGTH_LONG).show();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
if(flag == 0)
{
flag = 1;
holder.myitemButton.setChecked(false);
holder.myitemButton.setTag(position);
}else {
holder.myitemButton.setChecked(position == selectedPosition);
holder.myitemButton.setTag(position);
}
holder.myitemButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
selectedPosition = (Integer)v.getTag();
notifyDataSetInvalidated();
}
});
return v;
}
}
提前致谢
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_manage_item);
_backButton = (Button)findViewById(R.id.back);
_backButton.setOnClickListener(this);
_headerTextView = (TextView)findViewById(R.id.header_TextView);
_headerTextView.setText("My Items");
_uploadButton = (ImageButton)findViewById(R.id.Upload_file_button);
_uploadButton.setOnClickListener(this);
_addmanullyButton = (ImageButton)findViewById(R.id.add_item_manually);
_addmanullyButton.setOnClickListener(this);
_addphoneButton = (ImageButton)findViewById(R.id.auto_add_phone);
_addphoneButton.setOnClickListener(this);
_modifyButton = (ImageButton)findViewById(R.id.modify_button);
_modifyButton.setOnClickListener(this);
_transferButton = (ImageButton)findViewById(R.id.transfer_ownership);
_transferButton.setOnClickListener(this);
_hideenButton = (Button)findViewById(R.id.hideen_button);
_hideenButton.setOnClickListener(this);
_manageListView = (ListView)findViewById(R.id.manage_listview);
prepareList();
_adapter = new ManageAdapter(listItem, this);
_manageListView.setAdapter(_adapter);
}
public void prepareList() {
listItem = new ArrayList<String>();
listItem.add("Android smart");
listItem.add("sony");
listItem.add("samsung");
listItem.add("micromax");
listItem.add("tablet");
}
@Override
public void onClick(View view) {
Intent intent = null;
switch (view.getId()) {
case R.id.Upload_file_button:
intent = new Intent(ManageItems.this, UploadFileActivity.class);
startActivity(intent);
break;
case R.id.modify_button:
intent = new Intent(ManageItems.this, ModifyActivity.class);
startActivity(intent);
break;
case R.id.transfer_ownership:
intent = new Intent(ManageItems.this, TransferOwnerShip.class);
startActivity(intent);
break;
case R.id.add_item_manually:
intent = new Intent(ManageItems.this, AddManuallyActivity.class);
startActivity(intent);
break;
case R.id.auto_add_phone:
intent = new Intent(ManageItems.this, AutoAddActivity.class);
startActivity(intent);
break;
case R.id.back:
intent = new Intent(ManageItems.this, MenuActivtiy.class);
startActivity(intent);
break;
case R.id.hideen_button:
intent = new Intent(ManageItems.this, MenuActivtiy.class);
startActivity(intent);
break;
}
答案 0 :(得分：0)
谢谢大家，但我得到了我的问题的解决方案..
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View v = convertView;
final ViewHolder holder;
MyItemListDataHolder myItemListDataHolder = _manageArrayList.get(position);
LayoutInflater inflater = (LayoutInflater)_Context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if(v == null)
{
holder = new ViewHolder();
v = inflater.inflate(R.layout.manage_single_row, null,false);
holder.managelayout = (RelativeLayout)v.findViewById(R.id.single_row_layout);
holder.itemTextView = (TextView)v.findViewById(R.id.item_name_txt);
holder.myitemButton = (RadioButton)v.findViewById(R.id.manage_radio_buton);
holder.inUseSpinner = (Spinner)v.findViewById(R.id.Status_spinner);
v.setTag(holder);
}else {
holder = (ViewHolder) v.getTag();
}
holder.itemTextView.setText(myItemListDataHolder.get_itemName());
Adapter = new ArrayAdapter<String>(_Context,R.layout.spinner_color,List1);
Adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//Setting the ArrayAdapter data on the Spinner
holder.inUseSpinner.setAdapter(Adapter);
if(myItemListDataHolder.get_selectedItem() > 0){
holder.inUseSpinner.setSelection(myItemListDataHolder.get_selectedItem());
}else{
holder.inUseSpinner.setSelection(0);
}
holder.inUseSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
private Intent intent;
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position1, long arg3) {
_manageArrayList.get(position).set_selectedItem(position1);
// notifyDataSetChanged();
String status=holder.inUseSpinner.getSelectedItem().toString();
if(status.equalsIgnoreCase("Lost"))
{
intent = new Intent (_Context, LostItemActivity.class);
startActivity(intent);
}else if (status.equalsIgnoreCase("Stolen")) {
intent = new Intent (_Context, StolenItemActivity.class);
startActivity(intent);
}else if (status.equalsIgnoreCase("Stolen")) {
intent = new Intent (_Context, LostFoundActivity.class);
startActivity(intent);
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
if(flag == 0)
{
flag = 1;
holder.myitemButton.setChecked(false);
}else {
holder.myitemButton.setChecked(position == selectedPosition);
}
holder.myitemButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
selectedPosition = position;
notifyDataSetChanged();
//_adapter.notifyDataSetChanged();
}
});
return v;
}
}