我想添加搜索功能。
我已经这样做，所以在互联网的帮助下，现在想要搜索分类帐并过滤我的应用程序中的记录。
我的java文件如下
trailbalance.java
package com.cs_infotech.newpathshala;
import android.app.ProgressDialog;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import com.cs_infotech.newpathshala.R;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Locale;
public class trailbalance extends Fragment {
ListView list;
TextView ledgername;
TextView debit;
TextView credit;
ArrayList<HashMap<String, String>> oslist = new ArrayList<HashMap<String, String>>();
//URL to get JSON Array
public static String url = "http://www.cs-infotech.com/cms/andgettrail.php";
//JSON Node Names
private static final String TAG_OS = "android";
private static final String TAG_LEDGERNAME = "ledgername";
private static final String TAG_DEBIT = "debit";
private static final String TAG_CREDIT = "credit";
private static final String TAG_ATTRIBUTES = "attributes";
JSONArray android = null;
private View v;
public trailbalance() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.trailbalance, container, false);
TextView showGlobal = (TextView) rootView.findViewById(R.id.header);
showGlobal.setText("Trail Balance");
oslist = new ArrayList<HashMap<String, String>>();
v=rootView;
new JSONParse().execute();
return rootView;
}
EditText search;
private class JSONParse extends AsyncTask<String, String, JSONObject> {
private ProgressDialog pDialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
ledgername = (TextView) v.findViewById(R.id.ledgername);
debit = (TextView) v.findViewById(R.id.debit);
credit = (TextView) v.findViewById(R.id.credit);
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Getting Data ...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected JSONObject doInBackground(String... args) {
JSONParser jParser = new JSONParser();
// Getting JSON from URL
JSONObject json = jParser.getJSONFromUrl(url);
return json;
}
@Override
protected void onPostExecute(JSONObject json) {
pDialog.dismiss();
try {
// Getting JSON Array from URL
android = json.getJSONArray(TAG_OS);
for(int i = 0; i < android.length(); i++){
JSONObject c = android.getJSONObject(i);
// Storing JSON item in a Variable
String ledgername = c.getString(TAG_LEDGERNAME);
String debit = c.getString(TAG_DEBIT);
String credit = c.getString(TAG_CREDIT);
String attributes = c.getString(TAG_ATTRIBUTES);
// Adding value HashMap key => value
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_LEDGERNAME, ledgername);
if (Double.parseDouble(debit)>0)
{
map.put(TAG_DEBIT, debit);
}
else
{
map.put(TAG_DEBIT, "");
}
if (Double.parseDouble(credit)>0)
{
map.put(TAG_CREDIT, credit);
}
else
{
map.put(TAG_CREDIT, "");
}
map.put(TAG_ATTRIBUTES, attributes);
oslist.add(map);
list=(ListView) v.findViewById(R.id.list);
final ListAdapter adapter = new SimpleAdapter(getActivity(), oslist,
R.layout.trailrow,
new String[] {TAG_LEDGERNAME,TAG_DEBIT, TAG_CREDIT }, new int[] {
R.id.ledgername,R.id.debit, R.id.credit})
{
@Override
public View getView (int position, View convertView, ViewGroup parent)
{
View v = super.getView(position, convertView, parent);
if(position %2==0)
{
v.setBackgroundColor(Color.LTGRAY);
}
else
{
v.setBackgroundColor(Color.WHITE);
}
if (oslist.get(+position).get("attributes").toString().trim().toUpperCase().equals("N"))
{
}
else
{
//v.setBackgroundColor(Color.BLACK);
TextView textView=(TextView) v.findViewById(R.id.ledgername);
textView.setTypeface(null, Typeface.BOLD);
//textView.setTextColor(8421504);
//textView.setBackgroundColor(000000);
TextView debit=(TextView) v.findViewById(R.id.debit);
debit.setTypeface(null, Typeface.BOLD);
//debit.setTextColor(8421504);
//debit.setBackgroundColor(000000);
TextView credit=(TextView) v.findViewById(R.id.credit);
credit.setTypeface(null, Typeface.BOLD);
// credit.setTextColor(8421504);
// credit.setBackgroundColor(000000);
}
return v;
}
};
list.setAdapter(adapter);
search= (EditText) v.findViewById(R.id.search);
search.addTextChangedListener(new TextWatcher() {
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
public void afterTextChanged(Editable s) {
}
});
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Toast.makeText(getActivity(), "You Clicked at " + oslist.get(+position).get("ledgername"), Toast.LENGTH_LONG).show();
}
});
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
trailbalance.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<include layout="@layout/headerlayout" android:id="@+id/id" />
<LinearLayout
android:id="@+id/ll1"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1" >
</LinearLayout>
<LinearLayout
android:id="@+id/ll2"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
>
</LinearLayout>
<include layout="@layout/trailheader" android:id="@+id/id1" />
<EditText
android:id="@+id/search"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="60dip"
android:layout_marginBottom="30dip"
/>
<include layout="@layout/commonlayout" android:id="@+id/id" />
</RelativeLayout>