-1
私はデータベースから取得する要素を表示するxmlレイアウトを持っています。すべての要素をListViewに配置すると、最後の要素だけが表示されます。私はSystem.out.println(bookList);で私のJavaクラスをテストし、私のすべてのデータが表示されました。だから私は問題が私のXMLファイル上にあるはずだと思うが、私は問題を引き起こしている部分を見つけることができませんでした。Xmlカスタムリストビューは1つの要素のみを表示します
activity_e_database.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.apulibrary.E_Database" >
<TextView
android:id="@+id/TextView01"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:background="#BDBDBD"
android:gravity="center"
android:text="APU Library"
android:textColor="#000000" />
<TextView
android:id="@+id/textView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/TextView01"
android:layout_below="@+id/TextView01"
android:layout_marginTop="2dp"
android:background="#BDBDBD"
android:gravity="center"
android:text="APU E-Database"
android:textColor="#000000" />
<EditText
android:id="@+id/searchinput"
android:layout_width="175dip"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_below="@+id/textView1"
android:layout_marginTop="20dp"
android:background="@drawable/searchbox"
android:ems="10"
android:textSize="15sp"
android:hint="Enter book title, author....." />
<Spinner
android:id="@+id/searchtype"
android:layout_width="265dip"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/searchinput"
android:layout_alignBottom="@+id/searchinput"
android:layout_marginLeft="14dp"
android:layout_toRightOf="@+id/searchinput"
tools:listitem="@android:layout/simple_spinner_item" />
<TextView
android:id="@+id/wronguserpassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/searchinput"
android:layout_centerHorizontal="true"
android:layout_marginTop="21dp"
android:background="#FFEA39"
android:textAppearance="?android:attr/textAppearanceSmall" />
<Button
android:id="@+id/searchbutton"
android:layout_width="wrap_content"
android:layout_height="40dip"
android:layout_centerHorizontal="true"
android:layout_marginTop="17dp"
android:text="Search"
android:textSize="15sp"
android:layout_below="@+id/wronguserpassword"
android:layout_margin="10dp" />
<ListView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/searchresultview"
android:layout_below="@+id/searchbutton"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
customiselistview.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/textViewid"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextView"
android:textSize="16sp"
android:layout_weight="1"
android:gravity="left"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_alignParentLeft="true"
android:layout_marginLeft="0dp"
android:layout_alignParentTop="true"
android:layout_marginTop="0dp" />
<TextView
android:id="@+id/textViewtitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextView"
android:textSize="16sp"
android:layout_weight="1"
android:gravity="left"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_below="@+id/textViewid"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:id="@+id/textViewauthor"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="16sp"
android:text="TextView"
android:layout_weight="1"
android:gravity="left"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_below="@+id/textViewtitle"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
E_Database.java
package com.example.apulibrary;
import android.annotation.SuppressLint;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Spinner;
import android.widget.Toast;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
@SuppressLint("NewApi")
public class E_Database extends ActionBarActivity implements
View.OnClickListener{
private Button searchbutton;
private EditText searchinput;
private ListView searchresultview;
private ProgressDialog loading;
private String array_spinnersearchtype[];
public static String bookid = "";
public static String booktitle = "";
public static String author = "";
public static String isbn = "";
public static String publishers = "";
public static String publishedyear = "";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_e__database);
searchbutton = (Button) findViewById(R.id.searchbutton);
searchbutton.setOnClickListener(this);
searchresultview = (ListView) findViewById(R.id.searchresultview);
searchinput = (EditText) findViewById(R.id.searchinput);
array_spinnersearchtype = new String [7];
array_spinnersearchtype[0] = "Keyword";
array_spinnersearchtype[1] = "Title";
array_spinnersearchtype[2] = "Author";
array_spinnersearchtype[3] = "Subject";
array_spinnersearchtype[4] = "ISBN";
array_spinnersearchtype[5] = "Series";
array_spinnersearchtype[6] = "Call number";
Spinner searchtype = (Spinner)findViewById(R.id.searchtype);
ArrayAdapter adaptersearchtype = new ArrayAdapter(this,R.layout.spinner_layout, array_spinnersearchtype);
searchtype.setAdapter(adaptersearchtype);
}
public void getData(){
String id = searchinput.getText().toString().trim();
if (id.equals("")){
Toast.makeText(this, "Please enter an id",Toast.LENGTH_LONG).show();
return;
}
loading = ProgressDialog.show(this,"Please wait...","Fetching...",false,false);
String url = Config.DATA_URL+searchinput.getText().toString().trim();
StringRequest stringRequest = new StringRequest(url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
loading.dismiss();
showJSON(response);
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(E_Database.this,error.getMessage().toString(),Toast.LENGTH_LONG).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
private void showJSON(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
JSONArray result = jsonObject.getJSONArray(Config.JSON_ARRAY);
for(int i = 0; i<result.length(); i++) {
JSONObject bookData = result.getJSONObject(i);
bookid = bookData.getString(Config.KEY_id);
booktitle = bookData.getString(Config.KEY_title);
author = bookData.getString(Config.KEY_author);
isbn = bookData.getString(Config.KEY_isbn);
publishers = bookData.getString(Config.KEY_publisher);
publishedyear = bookData.getString(Config.KEY_publishedyear);
ArrayList<HashMap<String, String>> bookList = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map = new HashMap<String, String>();
map.put("id", "Book Id : " + bookid);
map.put("title", "Title : " + booktitle);
map.put("author", "Author : " + author);
bookList.add(map);
System.out.println(bookList);
SimpleAdapter simpleAdapter = new SimpleAdapter(this,bookList, R.layout.customiselistview, new String[]{"id", "title", "author"}, new int[]{R.id.textViewid, R.id.textViewtitle, R.id.textViewauthor});
searchresultview.setAdapter(simpleAdapter);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.e__database, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onClick(View v) {
getData();
}
}