我正在使用Calendar App显示用户选择的项目列表。我已经在片段中设置了适配器，其中包含2个array_lists（一个用于图像资源，另一个用于项目名称）和列表大小，而不是仅显示特定数量的列表项，只有第一个项目来了，get_View方法只调用第一个列表10次元素，只显示一个项目。
ItemSelected类的代码
package shopping.com.shopping.adapter;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ScrollView;
import android.widget.TextView;
import java.util.ArrayList;
import shopping.com.shopping.R;
public class ItemSelected extends BaseAdapter {
Context mContext;
int limit;
int count=0;
ScrollView sc_list;
private LayoutInflater inflater = null;
String item_name[]={"Egg","Bread","Milk","Watercan","Fruit","Egg","Bread"};
int imgsrc[]={R.drawable.smallegg,R.drawable.smallbread,R.drawable.smallmilk,R.drawable.smallwatert,R.drawable.smallapple,R.drawable.smallegg,R.drawable.smallbread};
ArrayList<String> listofIndexes,listofquantities;
ArrayList<String> location_or_society_details;
public ItemSelected(Context context ,ArrayList<String> listofIndexes,ArrayList<String> listofquantities,int limit) {
// "imgsrc" is the image-reference of selected item from the list
// "quantity" is the quantity of selected item which customer want to book
// "imgTitle" is the name of selected img like milk,bread,watertank
// "getimgSrc[]" is the array which contains refrences of all the items
// "get_title" is the array which contains all the items names
this.inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.mContext = context;
this.limit=limit;
this.listofIndexes=listofIndexes;
this.listofquantities=listofquantities;
}
@Override
public int getCount() {
return limit;
}
@Override
public Object getItem(int position) {
return this.listofIndexes.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public int getViewTypeCount() {
return getCount();
}
@Override
public int getItemViewType(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
Log.d("testing","afzal");
count++;
TextView i_name=null,i_count=null;
ImageView i_image=null;
if(convertView == null) {
inflater = LayoutInflater.from(mContext);
view = inflater.inflate(R.layout.items_list, null);
}
i_image = (ImageView) view.findViewById(R.id.i_image);
i_name = (TextView) view.findViewById(R.id.i_name);
i_count = (TextView) view.findViewById(R.id.i_count);
i_name.setText("testing");
i_count.setText("count");
i_image.setImageResource(R.drawable.logo);
//setting respective value of Booked list_items with 'Item_name' and their 'Quantity'. suppose first user select item#5 with quantity 5 then item#2 with quatity 9 and so on, then first child of listView should b item#5 with quant 5 second list_item should be 2 with quantity 9 and so on
// String index= listofIndexes.get(position);
// String quantity=listofquantities.get(position);
// i_name.setText(item_name[Integer.parseInt(index)]);
// i_image.setImageResource(imgsrc[Integer.parseInt(index)]);
// i_count.setText(Integer.parseInt(quantity));
return view;
}
}
TabFragment1类
package shopping.com.shopping.fragmensts;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.ScrollView;
import android.widget.Switch;
import android.widget.Toast;
import com.samsistemas.calendarview.widget.CalendarView;
import com.samsistemas.calendarview.widget.DayView;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import shopping.com.shopping.R;
import shopping.com.shopping.activities.ListItemsActivity;
import shopping.com.shopping.activities.SetOrder;
import shopping.com.shopping.activities.SignUpSignIn;
import shopping.com.shopping.adapter.ItemSelected;
import shopping.com.shopping.adapter.PagerAdapter;
public class TabFragment1 extends Fragment implements View.OnClickListener{
private CalendarView mCalendarView;
private View myFragmentView;
Button btn;
ItemSelected adapter;
ListView listview;
LinearLayout l_lay;
ScrollView scroll;
ArrayList<String> listofIndexes,listofquantities;
int iTem_Index=3;
String item_name[]={"Egg","Bread","Milk","Watercan","Fruit","Egg","Bread"};
int imgsrc[]={R.drawable.smallegg,R.drawable.smallbread,R.drawable.smallmilk,R.drawable.smallwatert,R.drawable.smallapple,R.drawable.smallegg,R.drawable.smallbread};
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
myFragmentView= inflater.inflate(R.layout.fragment_tab_fragment1, container, false);
mCalendarView = (CalendarView) myFragmentView.findViewById(R.id.calendar_view);
btn= (Button) myFragmentView.findViewById(R.id.try_it_now);
l_lay = (LinearLayout) myFragmentView.findViewById(R.id.linear);
listview = (ListView) myFragmentView.findViewById(R.id.booked_item);
scroll=(ScrollView)myFragmentView.findViewById(R.id.scroll_list);
SharedPreferences sh_pref=getActivity().getSharedPreferences("backToHome", Context.MODE_PRIVATE);
int flag= sh_pref.getInt("flag", 0);
String item=sh_pref.getString("item","null");
int quantity=sh_pref.getInt("quantity",0);
//if user has booked something then listView in home page will be visible
if(flag==3){
int count=0;
try {
listofIndexes=new ArrayList<String>();
BufferedReader inputReader = new BufferedReader(new InputStreamReader(getActivity().openFileInput("ItemsBooked")));
String readItem;
StringBuffer stringBuffer = new StringBuffer();
while ((readItem = inputReader.readLine()) != null){
listofIndexes.add(readItem);
}
}
catch (IOException e) {
e.printStackTrace();
}
try {
listofquantities=new ArrayList<String>();
BufferedReader inputReader = new BufferedReader(new InputStreamReader(getActivity().openFileInput("Quantity")));
String readQuantity;
StringBuffer stringBuffer = new StringBuffer();
while ((readQuantity = inputReader.readLine()) != null) {
count++;
Toast.makeText(getActivity(), "count is .."+count, Toast.LENGTH_SHORT).show();
listofquantities.add(readQuantity);
}
}
catch (IOException e) {
e.printStackTrace();
}
l_lay.setVisibility(View.GONE);
scroll.setVisibility(View.VISIBLE);
listview.setVisibility(View.VISIBLE);
// after matching and verifying, adding "item" into the array list
adapter= new ItemSelected(getActivity(),listofIndexes,listofquantities,count);
listview.setAdapter(adapter);
}
btn.setOnClickListener(this);
//put intent
mCalendarView.setFirstDayOfWeek(Calendar.SUNDAY);
mCalendarView.setIsOverflowDateVisible(true);
mCalendarView.setCurrentDay(new Date(System.currentTimeMillis()));
mCalendarView.setNextButtonColor(R.color.colorAccent);
mCalendarView.refreshCalendar(Calendar.getInstance(Locale.getDefault()));
mCalendarView.setNextButtonColor(R.color.bg_for_selecte_dday);
mCalendarView.setBackButtonColor(R.color.bg_for_selecte_dday);
//get current date
Date date=new Date(System.currentTimeMillis());
mCalendarView.setCurrentDay(date);
mCalendarView.setOnDateSelectedListener(new CalendarView.OnDateSelectedListener() {
@Override
public void onDateSelected(@NonNull Date selectedDate) {
Toast.makeText(getActivity(), "second date is selected", Toast.LENGTH_SHORT).show();
mCalendarView.setSelectedDayBackground(getResources().getColor(R.color.white));
SimpleDateFormat df = new SimpleDateFormat("dd-MM-yyyy", Locale.getDefault());
}
});
mCalendarView.setOnMonthChangedListener(new CalendarView.OnMonthChangedListener() {
@Override
public void onMonthChanged(@NonNull Date monthDate) {
SimpleDateFormat df = new SimpleDateFormat("dd MMMM yyyy", Locale.getDefault());
}
});
final DayView dayView = mCalendarView.findViewByDate(new Date(System.currentTimeMillis()));
return myFragmentView;
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.try_it_now:
Intent i=new Intent(getActivity(),ListItemsActivity.class);
i.putExtra("flag", 3);
startActivity(i);
}
}
}
答案 0 :(得分：1)
由于声誉低，我无法发表评论。请发布布局文件。此外，不是使用两个arraylists和count变量，而是创建一个模型类。它将使您的代码干净且易于管理。
参考点号。这个链接http://www.androidhive.info/2014/07/android-custom-listview-with-image-and-text-using-volley/
中的12和13