我在我的 Base Adapter 类中设置了一个变量，现在我想在我的相关 Activity 中获取（传递）这个变量。我不知道如何做到这一点。
这是我的代码。
public class TourDescAdapter extends BaseAdapter {
private List<Descriptions> descriptList;
private LayoutInflater mInflater;
ViewHolder holder;
@SuppressWarnings("unused")
private OnClickListener clickListener;
Activity context;
//TourDescription tourDesc;
ArrayList<HashMap<String, Object>> obj = new ArrayList<HashMap<String, Object>>();
HashMap<String, Object> discountedTourDetails = null;
String price = null, prodId = null;
String promoTourname, tourName;
public TourDescAdapter(List<Descriptions> descriptList,
TourDescription activity) {
this.context = activity;
this.descriptList = descriptList;
mInflater = LayoutInflater.from(activity);
clickListener = (OnClickListener) activity;
}
@Override
public int getCount() {
return this.descriptList.size();
}
@Override
public Object getItem(int position) {
return this.descriptList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = mInflater.inflate(R.layout.tourlist, null);
/****
* Creates a ViewHolder and store references to the two children
* views we want to bind data to
****/
holder = new ViewHolder();
holder.rlayout = (RelativeLayout) convertView
.findViewById(R.id.tourlayout);
holder.title = (TextView) convertView
.findViewById(R.id.tourtitletext);
holder.desc = (TextView) convertView.findViewById(R.id.tourdes);
holder.amountButton = (Button) convertView
.findViewById(R.id.amtBtn);
holder.pinButton = (Button) convertView.findViewById(R.id.pinBtn);
holder.arrowButton = (Button)convertView.findViewById(R.id.arrowBtn);
holder.serialText = (EditText)convertView.findViewById(R.id.pinText);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.title.setText((String) descriptList.get(position)
.getImageTitle());
holder.desc.setText((String) descriptList.get(position)
.getImageDescription());
((ImageView) holder.rlayout.getChildAt(0)).setImageBitmap(BitmapFactory
.decodeFile((RaconTours.PATH + RaconTours.city + File.separator
+ TourDescription.currentTour.getObjtourName()
+ File.separator + descriptList.get(position)
.getImagePath().split("/")[2]).replace(" ", "_")));
if (position == 0) {
SharedPreferences settings = context.getSharedPreferences("downloadDetails", 0);
String isTourDownloaded = settings.getString(TourDescription.currentTour.getObjtourName(), "");
if (isTourDownloaded.equals("true")) {
//if (!(TourDescription.downloadFile.exists())||TourDescription.downloadFile.exists() == false ) {
//if (TourDescription.currentTour.getIsTourDownloaded() == true) {
//holder.pinButton.setVisibility(View.INVISIBLE);
//holder.arrowButton.setVisibility(View.INVISIBLE);
//holder.serialText.setVisibility(View.INVISIBLE);
}
holder.amountButton.setVisibility(View.VISIBLE);
holder.amountButton.setText("Start");
} else {
File promoPlistPath = new File(RaconTours.PATH + "promocode.txt");
checkPromoCode(promoPlistPath);
if (discountedTourDetails != null) {
tourName = (String) discountedTourDetails.get("promoTour");
price = (String) discountedTourDetails.get("discountPrice");
prodId = (String) discountedTourDetails.get("disProId");
holder.amountButton.setVisibility(View.VISIBLE);
// Setting the background color
holder.title
.setBackgroundColor(Color.parseColor("#993333"));
// Setting the Title color
holder.title.setTextColor(Color.WHITE);
// Centering the title
holder.title.setGravity(Gravity.LEFT);
// setting the city
((TextView) holder.rlayout.getChildAt(1))
.setText(RaconTours.city);
((TextView) holder.rlayout.getChildAt(1))
.setVisibility(View.VISIBLE);
// setting the Tour Amount
holder.amountButton.setText("$" +price);
//promoPlistPath.delete();
} else {
// Enabling the two buttons
holder.amountButton.setVisibility(View.VISIBLE);
// Setting the background color
holder.title
.setBackgroundColor(Color.parseColor("#993333"));
// Setting the Title color
holder.title.setTextColor(Color.WHITE);
// Centering the title
holder.title.setGravity(Gravity.LEFT);
// setting the city
((TextView) holder.rlayout.getChildAt(1))
.setText(RaconTours.city);
((TextView) holder.rlayout.getChildAt(1))
.setVisibility(View.VISIBLE);
// setting the Tour Amount
holder.amountButton.setText(TourDescription.currentTour
.getObjPrice());
}
}
} else {
holder.amountButton.setVisibility(View.INVISIBLE);
holder.pinButton.setVisibility(View.INVISIBLE);
holder.arrowButton.setVisibility(View.INVISIBLE);
holder.serialText.setVisibility(View.INVISIBLE);
holder.title.setBackgroundColor(Color.WHITE);
holder.title.setTextColor(Color.BLACK);
holder.title.setGravity(Gravity.CENTER_HORIZONTAL);
((TextView) holder.rlayout.getChildAt(1))
.setVisibility(View.INVISIBLE);
}
return convertView;
}
@SuppressWarnings("unchecked")
private void checkPromoCode(File promoPlistPath) {
if (promoPlistPath.exists()) {
try {
ObjectInputStream inStream = new ObjectInputStream(
new FileInputStream(promoPlistPath));
obj = (ArrayList<HashMap<String, Object>>) inStream
.readObject();
for (HashMap<String, Object> tmpObj : obj) {
promoTourname = (String) tmpObj.get("promoTour");
if (promoTourname.equals(TourDescription.currentTour.getObjtourName())) {
discountedTourDetails = tmpObj;
break;
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
class ViewHolder {
Button pinButton;
Button amountButton;
RelativeLayout rlayout;
TextView title;
TextView desc;
Button arrowButton;
EditText serialText;
}
}
这里
prodId = (String) discountedTourDetails.get("disProId");
我想将 prodId 传递给相关活动。
注意：Base Adapter 是从 Activity 中调用的
adapter = new TourDescAdapter(currentTour.getListOfDescriptions(), this);
setListAdapter(adapter);
任何人都可以告诉我如何做到这一点？