我創建了一個有三個項目的微調器
日常
每周
每月一次
我在我的java文件中執行了以下操作：
navSpinner = new ArrayList();
navSpinner.add(new SpinnerNavItem(getResources().getString(R.string.dailyview)));
navSpinner.add(new SpinnerNavItem(getResources().getString(R.string.weekview)));
navSpinner.add(new SpinnerNavItem(getResources().getString(R.string.monthview)));
adapter = new TitleNavigationAdapter(getActivity().getApplicationContext(),navSpinner);
mSpinner = (Spinner) rootView.findViewById(R.id.spinner);
mSpinner.setAdapter(adapter);
mSpinner.setOnItemSelectedListener(this);
OnItemSelected方法(實現AdapterView.OnItemSelectedListener)
public void onItemSelected(AdapterView> parentView,View v,int position,long id) {
Log.e("Position","= " + position);
if (mNaviFirstHit)
{
mNaviFirstHit = false;
}
else
{
Fragment fragment = null;
switch (position) {
case 0:
Log.e("Week","= " + position);
break;
case 1:
backspace = 1;
Log.e("Week","= " + position);
break;
case 2:
backspace = 1;
Log.e("Week","= " + position);
break;
default:
break;
}
}
}
public void onNothingSelected(AdapterView> parentView) {
}
適配器：
public class TitleNavigationAdapter extends BaseAdapter
{
private TextView txtTitle;
private ArrayList spinnerNavItem;
private Context context;
private TextView txtHeading;
private SharedPreferences pref;
public TitleNavigationAdapter(Context context,ArrayList spinnerNavItem)
{
this.spinnerNavItem = spinnerNavItem;
this.context = context;
}
@Override
public int getCount()
{
return spinnerNavItem.size();
}
@Override
public Object getItem(int index)
{
return spinnerNavItem.get(index);
}
@Override
public long getItemId(int position)
{
return position;
}
@Override
public View getView(int position,View convertView,ViewGroup parent)
{
if (convertView == null)
{
LayoutInflater mInflater = (LayoutInflater)
context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.list_item_title,null);
}
txtTitle = (TextView) convertView.findViewById(R.id.txtTitle);
txtTitle.setText(spinnerNavItem.get(position).getTitle());
txtTitle.setTextColor(context.getResources().getColor(R.color.orangeText));
txtTitle.setTextSize(TypedValue.COMPLEX_UNIT_SP,12);
pref = context.getSharedPreferences("MyPref",Context.MODE_PRIVATE);
String text = pref.getString("selectedItem",context.getResources().getString(R.string.transaction_main_gridview));
if (text.equalsIgnoreCase(convertView.getResources().getString(R.string.transaction_main_gridview)))
{
txtTitle.setText(convertView.getResources().getString(R.string.transaction_main_gridview_text));
}
else if (text.equalsIgnoreCase(convertView.getResources().getString(R.string.transaction_main_weekview)))
{
txtTitle.setText(convertView.getResources().getString(R.string.transaction_main_weekly_text));
}
else if (text.equalsIgnoreCase(convertView.getResources().getString(R.string.transaction_main_monthview)))
{
txtTitle.setText(convertView.getResources().getString(R.string.transaction_main_monthly_text));
}
return convertView;
}
@Override
public View getDropDownView(int position,ViewGroup parent)
{
if (convertView == null)
{
LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.list_item_title,null);
}
txtTitle = (TextView) convertView.findViewById(R.id.txtTitle);
txtTitle.setPadding(20,20,20);
txtHeading = (TextView) convertView.findViewById(R.id.txtheading);
txtHeading.setVisibility(View.GONE);
txtTitle.setText(spinnerNavItem.get(position).getTitle());
return convertView;
}
}
當我選擇位置1或2(我正確地記錄日志)然后從位置1或2,如果我選擇位置0日志沒有打印,上述代碼工作正常.位置不被調用.即使位置記錄沒有被打印.
這真的很奇怪,我不知道為什么會發生這種情況？有人可以幫我嗎？
謝謝！
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