java ExpandableListView更新
您好，每次有新信息出现时，我都试图更改我的ExpandableList，为此我想清除（）然后重新组合会更容易，问题是它会崩溃。我对这件事的了解还不足以弄明白
编辑：好的，我知道问题来自onActivityResult()，但我该如何解决它呢
主要活动
// Main Activity
package com.thehuntestshadow.laken;
import 安卓.app.Activity;
import 安卓.support.design.widget.FloatingActionButton;
import 安卓.support.v7.app.AppCompatActivity;
import 安卓.os.Bundle;
import 安卓.view.View;
import 安卓.widget.AdapterView;
import 安卓.widget.Button;
import 安卓.widget.ListAdapter;
import 安卓.widget.ListView;
import 安卓.widget.ArrayAdapter;
import 安卓.widget.Toast;
import 安卓.content.Intent;
import 安卓.widget.ImageButton;
import 安卓.view.View.OnClickListener;
import 安卓.widget.ExpandableListView;
import 安卓.widget.ExpandableListView.OnChildClickListener;
import 安卓.widget.ExpandableListView.OnGroupClickListener;
import 安卓.widget.ExpandableListView.OnGroupCollapseListener;
import 安卓.widget.ExpandableListView.OnGroupExpandListener;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class MainActivity extends AppCompatActivity{
MyDBHandler dbHandler =new MyDBHandler(this,null,null,1);
MyDBManager dbManager = new MyDBManager(this,null,null,1);
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
expListView = (ExpandableListView) findViewById(R.id.lvExp) ;
prepareListData();
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
String[] days = {"Monday", "Tuesday", "Wednesday", "Thursday","Friday", "Saturday", "Sunday"};
expListView.setOnGroupClickListener(new OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
// Toast.makeText(getApplicationContext(),
// "Group Clicked " + listDataHeader.get(groupPosition),
// Toast.LENGTH_SHORT).show();
return false;
}
});
// Listview Group expanded listener
expListView.setOnGroupExpandListener(new OnGroupExpandListener() {
@Override
public void onGroupExpand(int groupPosition) {
Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Expanded",
Toast.LENGTH_SHORT).show();
}
});
// Listview Group collasped listener
expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() {
@Override
public void onGroupCollapse(int groupPosition) {
Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Collapsed",
Toast.LENGTH_SHORT).show();
}
});
// Listview on child click listener
expListView.setOnChildClickListener(new OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
Toast.makeText(
getApplicationContext(),
listDataHeader.get(groupPosition)
+ " : "
+ listDataChild.get(
listDataHeader.get(groupPosition)).get(
childPosition), Toast.LENGTH_SHORT)
.show();
return false;
}
});
}
private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
int[] x = new int[10001];
x = dbManager.get_result(1);
// Adding child data
listDataHeader.add("Monday");
listDataHeader.add("Tuesday");
listDataHeader.add("Wednesday");
listDataHeader.add("Thursday");
listDataHeader.add("Friday");
listDataHeader.add("Saturday");
listDataHeader.add("Sunday");
String meow;
// Adding child data
List<String> monday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);monday.add(meow);}
x = dbManager.get_result(2);
List<String> tuesday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);tuesday.add(meow);}
x = dbManager.get_result(3);
List<String> wednsday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);wednsday.add(meow);}
x = dbManager.get_result(4);
List<String> thursday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);thursday.add(meow);}
x = dbManager.get_result(5);
List<String> friday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);friday.add(meow);}
x = dbManager.get_result(6);
List<String> saturday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);saturday.add(meow);}
x = dbManager.get_result(6);
List<String> sunday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);sunday.add(meow);}
listDataChild.put(listDataHeader.get(0), monday); // Header, Child data
listDataChild.put(listDataHeader.get(1), tuesday);
listDataChild.put(listDataHeader.get(2), wednsday);
listDataChild.put(listDataHeader.get(3),thursday);
listDataChild.put(listDataHeader.get(4),friday);
listDataChild.put(listDataHeader.get(5),saturday);
listDataChild.put(listDataHeader.get(6),sunday);
}
public void OnClick(View view) {
Intent i = new Intent(this, Add_Activity.class);
startActivityForResult(i, 1);
}
private void Renew() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
int[] x = new int[10001];
x = dbManager.get_result(1);
// Adding child data
listDataHeader.add("Monday");
listDataHeader.add("Tuesday");
listDataHeader.add("Wednesday");
listDataHeader.add("Thursday");
listDataHeader.add("Friday");
listDataHeader.add("Saturday");
listDataHeader.add("Sunday");
String meow;
// Adding child data
List<String> monday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);monday.add(meow);}
x = dbManager.get_result(2);
List<String> tuesday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);tuesday.add(meow);}
x = dbManager.get_result(3);
List<String> wednsday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);wednsday.add(meow);}
x = dbManager.get_result(4);
List<String> thursday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);thursday.add(meow);}
x = dbManager.get_result(5);
List<String> friday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);friday.add(meow);}
x = dbManager.get_result(6);
List<String> saturday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);saturday.add(meow);}
x = dbManager.get_result(6);
List<String> sunday = new ArrayList<String>();
for (int i =0;i<x[10000];i++)
if(x[i]==1){meow=dbHandler.say_name(i+1);sunday.add(meow);}
listDataChild.put(listDataHeader.get(0), monday); // Header, Child data
listDataChild.put(listDataHeader.get(1), tuesday);
listDataChild.put(listDataHeader.get(2), wednsday);
listDataChild.put(listDataHeader.get(3),thursday);
listDataChild.put(listDataHeader.get(4),friday);
listDataChild.put(listDataHeader.get(5),saturday);
listDataChild.put(listDataHeader.get(6),sunday);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent meow) {
if (requestCode == 1) {
if(resultCode == Activity.RESULT_OK){
Data data = new Data ();
data.set_description(meow.getStringExtra("description"));
data.set_activityname(meow.getStringExtra("name"));
dbHandler.addProducts(data);
Days days1 = new Days();
int [] array = new int[7];
array = meow.getIntArrayExtra("array");
days1.set_monday(array[0]);
days1.set_tuesday(array[1]);
days1.set_wednesday(array[2]);
days1.set_thursday(array[3]);
days1.set_friday(array[4]);
days1.set_saturday(array[5]);
days1.set_sunday(array[6]);
dbManager.addActivity(days1);
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
listAdapter.remove_shit();expListView.notifyAll();
prepareListData();
expListView.notifyAll();
}
if (resultCode == Activity.RESULT_CANCELED) {
//Write your code if there's no result
}
}
}//onActivityResult
}
ExpandableListAdapter
package com.thehuntestshadow.laken;
/**
* Created by User1 on 10/23/2016.
*/
import java.util.HashMap;
import java.util.List;
import 安卓.content.Context;
import 安卓.graphics.Typeface;
import 安卓.view.LayoutInflater;
import 安卓.view.View;
import 安卓.view.ViewGroup;
import 安卓.widget.BaseExpandableListAdapter;
import 安卓.widget.TextView;
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
public void remove_shit ()
{
_listDataChild.clear();
}
}
事件日志
11/06 11:24:33: Launching app
$ adb push /Users/TheHuntestShadow/Desktop/Alpha/app/build/outputs/apk/app-debug.apk /data/local/tmp/com.thehuntestshadow.laken
$ adb shell pm install -r "/data/local/tmp/com.thehuntestshadow.laken"
pkg: /data/local/tmp/com.thehuntestshadow.laken
Success
$ adb shell am start -n "com.thehuntestshadow.laken/com.thehuntestshadow.laken.MainActivity" -a 安卓.intent.action.MAIN -c 安卓.intent.category.LAUNCHER
Client not ready yet..Waiting for process to come online
Connected to process 13316 on device samsung-nexus_10-R32D100YVGD
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Application terminated.
### LogCat ###
--------- beginning of crash
11-06 11:32:38.972 13676-13676/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.thehuntestshadow.laken, PID: 13676
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { cmp=com.thehuntestshadow.laken/.MainActivity (has extras) }} to activity {com.thehuntestshadow.laken/com.thehuntestshadow.laken.MainActivity}: java.lang.IllegalMonitorStateException: object not locked by thread before notify()
at 安卓.app.ActivityThread.deliverResults(ActivityThread.java:3574)
at 安卓.app.ActivityThread.handleSendResult(ActivityThread.java:3617)
at 安卓.app.ActivityThread.access$1300(ActivityThread.java:151)
at 安卓.app.ActivityThread$H.handleMessage(ActivityThread.java:1352)
at 安卓.os.Handler.dispatchMessage(Handler.java:102)
at 安卓.os.Looper.loop(Looper.java:135)
at 安卓.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.安卓.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.IllegalMonitorStateException: object not locked by thread before notify()
at java.lang.Object.notifyAll(Native Method)
at com.thehuntestshadow.laken.MainActivity.onActivityResult(MainActivity.java:283)
at 安卓.app.Activity.dispatchActivityResult(Activity.java:6192)
at 安卓.app.ActivityThread.deliverResults(ActivityThread.java:3570)
at 安卓.app.ActivityThread.handleSendResult(ActivityThread.java:3617)
at 安卓.app.ActivityThread.access$1300(ActivityThread.java:151)
at 安卓.app.ActivityThread$H.handleMessage(ActivityThread.java:1352)
at 安卓.os.Handler.dispatchMessage(Handler.java:102)
at 安卓.os.Looper.loop(Looper.java:135)
at 安卓.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.安卓.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:698)
11-06 11:32:38.975 412-772/? W/ActivityManager: Force finishing activity 1 com.thehuntestshadow.laken/.MainActivity
11-06 11:32:39.028 412-15206/? I/OpenGLRenderer: Initialized EGL, version 1.4
11-06 11:32:39.032 412-15206/? D/mali_winsys: new_window_surface returns 0x3000
11-06 11:32:39.063 412-15206/? D/mali_winsys: new_window_surface returns 0x3000
11-06 11:32:39.483 412-433/? W/ActivityManager: Activity pause timeout for ActivityRecord{2aaea51a u0 com.thehuntestshadow.laken/.MainActivity t420 f}
11-06 11:32:39.546 12963-12980/? D/mali_winsys: new_window_surface returns 0x3000
11-06 11:32:40.497 523-523/? W/ResourceType: No package identifier when getting value for resource number 0x00000000
11-06 11:32:40.498 523-523/? W/PackageManager: Failure retrieving resources for com.安卓.settings: Resource ID #0x0
11-06 11:32:42.486 13676-13676/? I/Process: Sending signal. PID: 13676 SIG: 9
11-06 11:32:42.552 412-821/? I/WindowState: WIN DEATH: Window{1f76342a u0 com.thehuntestshadow.laken/com.thehuntestshadow.laken.Add_Activity}
11-06 11:32:42.558 412-2395/? I/WindowState: WIN DEATH: Window{262b75b3 u0 com.thehuntestshadow.laken/com.thehuntestshadow.laken.MainActivity}
11-06 11:32:42.620 412-425/? I/ActivityManager: Process com.thehuntestshadow.laken (pid 13676) has died
11-06 11:32:47.760 26617-27417/? I/ClearcutLoggerManager: flushAndDisconnect()
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