当我点击一个可展开的列表视图时，屏幕会移动到可展开列表视图中的最后一个列表视图。我想显示第一个列表视图并向下滚动以查看最后一个列表视图。
expandableList=(ExpandableListView) findViewById(R.id.existcustdet);
expandableList.setDividerHeight(2);
expandableList.setGroupIndicator(null);
expandableList.setClickable(true);
//expandableList.setBackgroundColor(Color.parseColor("#C6DFEF"));
expandableList.setCacheColorHint(Color.parseColor("#00000000"));
expandableList.setDivider(getResources().getDrawable(
R.drawable.policy_expandable_row));
<ExpandableListView
android:id="@+id/existcustdet"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:groupIndicator="@null"
android:transcriptMode="alwaysScroll"
android:/>
QuicksearchAdapter quickadapter = new QuicksearchAdapter(QuickQuote.this, parentItems,myPolicyList1,getpolorciv);
expandableList.setAdapter(quickadapter);
QuicksearchAdapter.Java
package com.assuretech.ku.quickquote;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import com.assuretech.ku.R;
import com.assuretech.ku.WebserviceHelper;
import com.assuretech.ku.policies.Policy;
import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.graphics.drawable.Drawable;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.BaseExpandableListAdapter;
import android.widget.Button;
import android.widget.CheckedTextView;
import android.widget.TextView;
public class QuicksearchAdapter extends BaseExpandableListAdapter {
private ArrayList<ArrayList<Quote>> childtems;
private LayoutInflater inflater;
private ArrayList<String> parentItems;
private Activity mActivity;
String language;
SharedPreferences sharedPreference;
String formattedDate;
SimpleDateFormat dateFormat;
Date exp, currentDate;
String civilid;
// constructor
public QuicksearchAdapter(Activity activity, ArrayList<String> parents,
ArrayList<ArrayList<Quote>> myPolicyList1,String cvid) {
this.mActivity = activity;
this.parentItems = parents;
this.childtems = myPolicyList1;
inflater = (LayoutInflater) mActivity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
sharedPreference = activity.getSharedPreferences(
WebserviceHelper.PREFS_NAME, 0);
language = sharedPreference.getString("language", "");
civilid=cvid;
}
public QuicksearchAdapter(Activity activity, ArrayList<String> parents,
ArrayList<ArrayList<Quote>> myPolicyList1) {
this.mActivity = activity;
this.parentItems = parents;
this.childtems = myPolicyList1;
inflater = (LayoutInflater) mActivity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
sharedPreference = activity.getSharedPreferences(
WebserviceHelper.PREFS_NAME, 0);
language = sharedPreference.getString("language", "");
}
// method getChildView is called automatically for each child view.
// Implement this method as per your requirement
@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
TextView txtPolicyNum = null;
TextView txtchasisno = null;
TextView txtchasis_ar = null;
TextView txtVhlinfodetails= null;
TextView txtar_chasis_Cap=null;
TextView txtar_reg_no=null;
TextView Expirydt = null;
TextView Vehpltno = null;
TextView Vehpla_Cap_ar=null;
TextView Veh_details_ar=null;
TextView txtassurdname_eng=null;
TextView txtassurdname_arb=null;
Button btnrepclaim;
Calendar c = Calendar.getInstance();
dateFormat = new SimpleDateFormat("dd/MM/yyyy");
formattedDate = dateFormat.format(c.getTime());
if ((language.contentEquals("")) || (language.contentEquals("en"))) {
convertView = inflater.inflate(R.layout.quickqote_existcustdet , null);
}
else if (language.contentEquals("ar"))
{
convertView = inflater.inflate(R.layout.quickqote_existcustdet_ar, null);
}
// get the textView reference and set the value
Button btnreqforqot=(Button)convertView.findViewById(R.id.req_for_quot);
TextView txtcvid=(TextView)convertView.findViewById(R.id.txtqq_ec_cvilid);
TextView txtchno=(TextView)convertView.findViewById(R.id.txtqq_ec_chasno);
TextView polnum=(TextView)convertView.findViewById(R.id.txtqq_ec_polno);
TextView vehdtls=(TextView)convertView.findViewById(R.id.txtqq_ec_vehdet);
// TextView vehdtls_ar=(TextView)convertView.findViewById(R.id.txtqq_ec_vehdet_ar);
TextView expdt=(TextView)convertView.findViewById(R.id.txtqq_ec_expdate);
TextView vhlplatno=(TextView)convertView.findViewById(R.id.txtqq_ec_platno);
TextView assrdname=(TextView)convertView.findViewById(R.id.txtqq_ec_assurname);
String chasino=childtems.get(groupPosition)
.get(childPosition).Chasisno;
String polno=childtems.get(groupPosition)
.get(childPosition).policy_number;
String vhdet=childtems.get(groupPosition)
.get(childPosition).Pol_Veh_Dtls_Eng;
String vhdet_ar=childtems.get(groupPosition)
.get(childPosition).Pol_Veh_Dtls_Ar;
String expdate=childtems.get(groupPosition)
.get(childPosition).policy_exp_date;
String vhplno=childtems.get(groupPosition)
.get(childPosition).Vehicleplateno;
String assurdname=childtems.get(groupPosition)
.get(childPosition).assuredname_en;
/*if (isRenewal.equalsIgnoreCase("N")) {
btnRenew.setEnabled(false);
btnRenew.setBackgroundDrawable(mActivity.getResources()
.getDrawable(R.drawable.renew_button));
}*/
if ((language.contentEquals("")) || (language.contentEquals("en"))) {
txtcvid.setText(civilid);
txtcvid.setGravity(Gravity.LEFT);
txtchno.setText(chasino);
txtchno.setGravity(Gravity.LEFT);
polnum.setText(polno);
polnum.setGravity(Gravity.LEFT);
vehdtls.setText(vhdet);
vehdtls.setGravity(Gravity.LEFT);
expdt.setText(expdate);
expdt.setGravity(Gravity.LEFT);
vhlplatno.setText(vhplno);
vhlplatno.setGravity(Gravity.LEFT);
assrdname.setText(assurdname);
assrdname.setGravity(Gravity.LEFT);
}
//commented 22
else if (language.contentEquals("ar"))
{
txtcvid.setText(civilid);
txtcvid.setGravity(Gravity.RIGHT);
txtchno.setText(chasino);
txtchno.setGravity(Gravity.RIGHT);
polnum.setText(polno);
polnum.setGravity(Gravity.RIGHT);
vehdtls.setText(vhdet_ar);
vehdtls.setGravity(Gravity.RIGHT);
expdt.setText(expdate);
expdt.setGravity(Gravity.RIGHT);
vhlplatno.setText(vhplno);
vhlplatno.setGravity(Gravity.RIGHT);
assrdname.setText(assurdname);
assrdname.setGravity(Gravity.RIGHT);
}
//commented 22
/*btnMoreInfo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent policyViewInte = new Intent(mActivity,
MyPolicyView.class);
Bundle bundle = new Bundle();
bundle.putString("policy_num", policynum);
bundle.putString("expiry_date", expiry_date);
bundle.putString("policyStatus_en", policyStatus_en);
bundle.putString("assuredNameEn", assuredNameEn);
bundle.putString("policy_status_ar", policy_status_ar);
bundle.putString("assured_name_ar", assured_name_ar);
bundle.putString("flag", "1");
policyViewInte.putExtras(bundle);
// mActivity.finish();
mActivity.startActivity(policyViewInte);
}
});
*/
btnreqforqot.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// Intent in =new Intent(context,MainWindow.class);
//Toast.makeText(context, "Quotation Request sent successfully. Our representative will contact you soon", Toast.LENGTH_LONG).show();
//context.startActivity(in);
}
});
/*btnRenew.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intentRenew = new Intent(mActivity, PolicyRenew.class);
Bundle bundle = new Bundle();
bundle.putString("policy_num", policynum);
// Toast.makeText(mActivity, "btnRenew policyId: " +policyId,
// Toast.LENGTH_LONG).show();
bundle.putString("policyId", policyId);
bundle.putString("assuredNameEn", assuredNameEn);
bundle.putString("total_premium", total_premium);
bundle.putString("assured_name_ar", assured_name_ar);
intentRenew.putExtras(bundle);
mActivity.startActivity(intentRenew);
}
});*/
// }
return convertView;
}
// method getGroupView is called automatically for each parent item
// Implement this method as per your requirement
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
CheckedTextView checkedText = null;
if ((language.contentEquals("")) || (language.contentEquals("en"))) {
convertView = inflater.inflate(R.layout.policy_parent, null);
checkedText = (CheckedTextView) convertView
.findViewById(R.id.textViewGroupName);
checkedText.setText(" " + parentItems.get(groupPosition));
Drawable dwn_arr = mActivity.getResources().getDrawable(
R.drawable.dwn_arr);
Drawable rt_arr = mActivity.getResources().getDrawable(
R.drawable.rt_arr);
final DisplayMetrics metrics = new DisplayMetrics();
mActivity.getWindowManager().getDefaultDisplay()
.getMetrics(metrics);
switch (metrics.densityDpi) {
case DisplayMetrics.DENSITY_LOW:
dwn_arr.setBounds(0, 0, 30, 30);
rt_arr.setBounds(0, 0, 30, 30);
break;
case DisplayMetrics.DENSITY_MEDIUM:
if ((mActivity.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_LARGE) {
dwn_arr.setBounds(0, 0, 30, 30);
rt_arr.setBounds(0, 0, 30, 30);
} else if ((mActivity.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_NORMAL) {
dwn_arr.setBounds(0, 0, 25, 25);
rt_arr.setBounds(0, 0, 25, 25);
} else if ((mActivity.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_SMALL) {
dwn_arr.setBounds(0, 0, 30, 30);
rt_arr.setBounds(0, 0, 30, 30);
} else if ((mActivity.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE) {
dwn_arr.setBounds(0, 0, 30, 30);
rt_arr.setBounds(0, 0, 30, 30);
} else {
dwn_arr.setBounds(0, 0, 25, 25);
rt_arr.setBounds(0, 0, 25, 25);
}
break;
case DisplayMetrics.DENSITY_HIGH:
dwn_arr.setBounds(0, 0, 30, 30);
rt_arr.setBounds(0, 0, 30, 30);
break;
case DisplayMetrics.DENSITY_XHIGH:
dwn_arr.setBounds(0, 0, 30, 30);
rt_arr.setBounds(0, 0, 30, 30);
break;
default:
dwn_arr.setBounds(0, 0, 30, 30);
rt_arr.setBounds(0, 0, 30, 30);
break;
}
if (isExpanded == true) {
checkedText.setCompoundDrawables(dwn_arr, null, null, null);
} else {
checkedText.setCompoundDrawables(rt_arr, null, null, null);
}
} else if (language.contentEquals("ar")) {
convertView = inflater.inflate(R.layout.policy_parent, null);
checkedText = (CheckedTextView) convertView
.findViewById(R.id.textViewGroupName);
checkedText.setGravity(Gravity.RIGHT);
checkedText.setText(parentItems.get(groupPosition) + " ");
Drawable dwn_arr = mActivity.getResources().getDrawable(
R.drawable.dwn_arr);
dwn_arr.setBounds(0, 0, 30, 30);
Drawable rt_arr = mActivity.getResources().getDrawable(
R.drawable.rt_arr);
rt_arr.setBounds(0, 0, 30, 30);
if (isExpanded == true) {
checkedText.setCompoundDrawables(null, null, dwn_arr, null);
} else {
checkedText.setCompoundDrawables(null, null, rt_arr, null);
}
}
switch (groupPosition) {
case 0:
checkedText.setBackgroundResource(R.drawable.green_bar);
break;
case 1:
checkedText.setBackgroundResource(R.drawable.blue_bar);
break;
case 2:
checkedText.setBackgroundResource(R.drawable.brownbar);
break;
default:
break;
}
return convertView;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return null;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return 0;
}
@Override
public int getChildrenCount(int groupPosition) {
return childtems.get(groupPosition).size();
}
@Override
public Object getGroup(int groupPosition) {
return null;
}
@Override
public int getGroupCount() {
return parentItems.size();
}
@Override
public void onGroupCollapsed(int groupPosition) {
super.onGroupCollapsed(groupPosition);
}
@Override
public void onGroupExpanded(int groupPosition) {
super.onGroupExpanded(groupPosition);
}
@Override
public long getGroupId(int groupPosition) {
return 0;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return false;
}
}
答案 0 :(得分：0)
我看到你的适配器里的东西我看不清楚。尝试修改你的适配器，更像是这样：
这部分是关于我的项目，所以你必须适应你的：
private Activity context;
private Map<String, List<RosterEntry>> groupsCollections;
private List<String> groups;
public ExpandableListContactsAdapter(Activity conxtext, List<String> groups,
Map<String, List<RosterEntry>> groupsCollections) {
this.context = conxtext;
this.groupsCollections = groupsCollections;
this.groups = groups;
}
从这一部分你需要检查方法。
你有一些方法返回null，或者0.尝试修复它
@Override
public int getGroupCount() {
return groups.size();
}
@Override
public int getChildrenCount(int groupPosition) {
return groupsCollections.get(groups.get(groupPosition)).size();
}
@Override
public Object getGroup(int groupPosition) {
return groups.get(groupPosition);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return groupsCollections.get(groups.get(groupPosition)).get(childPosition);
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
String groupName = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.user_contacts_group, null);
}
TextView item = (TextView) convertView.findViewById(R.id.user_Group);
item.setTypeface(null, Typeface.BOLD);
item.setText(groupName);
return convertView;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView,
ViewGroup parent) {
final RosterEntry contact = (RosterEntry) getChild(groupPosition, childPosition);
LayoutInflater inflater = context.getLayoutInflater();
if (convertView == null) {
convertView = inflater.inflate(R.layout.user_contacts_contact, null);
}
TextView item_name = (TextView) convertView.findViewById(R.id.expandable_user_name);
TextView item_email = (TextView) convertView.findViewById(R.id.expandable_user_email);
item_name.setText(contact.getName());
item_email.setText(contact.getUser());
return convertView;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}