obtenir cliqué sur l'élément de la listview

J'ai un problème. Avant la modification de mon fichier XML, ma listview a été capable de fonctionner parfaitement. Mais maintenant, après quelques modifications dans le format xml, sa ne fonctionne pas correctement.
Mon listview est personnalisé. Donc, j'ai créé xml distinct pour le rendu de chaque ligne dans la liste.

Mon seul row.xml code:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:id="@+id/relativeLayoutSingleRowManageAddictions"
android:layout_height="40dp"
android:background="@drawable/box_midbg" >
<TextView
android:id="@+id/textViewSingleRowManageAddictions"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="17dp"
android:text="TextView"
android:textSize="20dp"
android:textColor="#ffffff" />
<ImageView
android:id="@+id/imageViewSingleRowManageAddictions"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="18dp"
android:src="@drawable/listing_arrow" />
</RelativeLayout>

Mon main.xml code où listview réside:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/main_bg_edited" >
<RelativeLayout
android:id="@+id/relativeLayout1"
style="@style/top_bar_style" >
<ImageView
android:id="@+id/imageViewMAnageAddictionsBack"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:src="@drawable/back_arrow"
android:clickable="true" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/header_style"
android:text="Manage Addictions" />
<ImageView
android:id="@+id/imageViewManageAddictionsAdd"
android:layout_width="25dp"
android:layout_height="20dp"
android:layout_marginRight="3dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="@drawable/plus_nav"
android:clickable="true" />
</RelativeLayout>
<ListView
android:id="@+id/listViewManageAddictions"
android:layout_width="290dp"
android:layout_height="fill_parent"
android:layout_below="@+id/relativeLayout1"
android:layout_centerHorizontal="true"
android:layout_centerInParent="true"
android:layout_marginTop="12dp"
android:divider="@android:color/transparent"
android:dividerHeight="2dp" />
</RelativeLayout>

Et mon code java pour elle:

package com.addictioncounterapp;
import java.util.ArrayList;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
public class ManageAddictionList extends Activity {
ImageView iv_manage_addictions_back, iv_manage_addictions_add;
ListView listview;
ArrayList < String > arraylist_manage_addiction;
ArrayAdapter < String > arrayadapter_manage_addiction;
SQLiteDatabase database;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_manage_addiction_list);
loaddatabase();
iv_manage_addictions_back = (ImageView) findViewById(R.id.imageViewMAnageAddictionsBack);
iv_manage_addictions_back.setClickable(true);
iv_manage_addictions_back.setOnClickListener(new OnClickListener() {@Override
public void onClick(View v) {
startActivity(new Intent(ManageAddictionList.this, Settings.class));
}
});
iv_manage_addictions_add = (ImageView) findViewById(R.id.imageViewManageAddictionsAdd);
iv_manage_addictions_add.setClickable(true);
iv_manage_addictions_add.setOnClickListener(new OnClickListener() {@Override
public void onClick(View v) {
Intent intent = new Intent(ManageAddictionList.this, MainActivity.class);
intent.putExtra("name", "");
intent.putExtra("unit", "");
intent.putExtra("attribute", "");
intent.putExtra("limit", "");
intent.putExtra("operation", "Add Addiction");
startActivity(intent);
}
});
arraylist_manage_addiction = new ArrayList < String > ();
manageList();
listview = (ListView) findViewById(R.id.listViewManageAddictions);
if (arraylist_manage_addiction.isEmpty()) Toast.makeText(getBaseContext(), "No Addictions found to manage. Click on 'add' button to create new Addiction.", Toast.LENGTH_SHORT)
.show();
else listview.setAdapter(arrayadapter_manage_addiction);
listview.setOnItemClickListener(new OnItemClickListener() {@Override
public void onItemClick(AdapterView <? > arg0, View arg1, int arg2, long arg3) {
String name = null, attribute = null, unit = null, limit = null;
View parentView = (View) arg0.getParent();
name = ((TextView) parentView.findViewById(R.id.textViewSingleRowManageAddictions))
.getText() + "";
Toast.makeText(getBaseContext(), name, Toast.LENGTH_SHORT)
.show();
int cat_id = 0;
//--------Fetching cat_id through name from the list--------
Cursor cursor;
cursor = database.query("category", new String[] {
"cat_id"
}, new String("cat_name=?"), new String[] {
name
}, null, null, null);
if (cursor.getCount() > 0) {
while (cursor.moveToNext())
cat_id = cursor.getInt(0);
cursor.close();
}
//--------Fetching unit, attribute, limit through cat_id from the list--------
cursor = database.query("category_attribute", new String[] {
"cat_attribute_name", "cat_attribute_unit", "cat_limit"
}, new String("cat_id=?"), new String[] {
cat_id + ""
}, null, null, null);
if (cursor.getCount() > 0) {
while (cursor.moveToNext()) {
attribute = cursor.getString(0);
unit = cursor.getString(1);
limit = cursor.getString(2);
}
cursor.close();
}
Intent intent = new Intent(ManageAddictionList.this, MainActivity.class);
intent.putExtra("name", name);
intent.putExtra("unit", unit);
intent.putExtra("attribute", attribute);
intent.putExtra("limit", limit);
intent.putExtra("cat_id", cat_id);
intent.putExtra("operation", "Edit Addiction");
startActivity(intent);
}
});
}
private void loaddatabase() {
database = openOrCreateDatabase("AddictionCounter.db", SQLiteDatabase.OPEN_READONLY, null);
}
private void manageList() {
String[] columns = {
"cat_name"
};
Cursor cursor;
cursor = database.query("category", columns, null, null, null, null, null);
if (cursor.getCount() > 0) {
while (cursor.moveToNext())
arraylist_manage_addiction.add(cursor.getString(0));
cursor.close();
}
arrayadapter_manage_addiction = new ArrayAdapter < String > (this, R.layout.single_row_manage_addictions, R.id.textViewSingleRowManageAddictions, arraylist_manage_addiction);
}
}

Le principal bug derrière cela est que, quand je reçois le nom à l'aide de ceci:

View parentView = (View) arg0.getParent();
name = ((TextView) parentView.findViewById(R.id.textViewSingleRowManageAddictions)).getText()+"";

la liste de tout dossier, il donne le nom du premier enregistrement.
Par exemple, si la première ligne a textview nommé "Jeux", quand je clique sur n'importe quelle ligne, (fin de débogage, j'ai utilisé Toast.makeText(...)) il Toasts "Jeu" comme nom pour chaque enregistrement dans la liste, même si chaque enregistrement dans la listview est unique. Merci de m'aider à sortir de cette.

  • arg0 est votre Liste ... utiliser arg1 qui est votre cliqué sur la ligne ...
  • ... de toute façon pour seulement OBTENIR cliqué élément est préférable d'utiliser String name = (String)agr0.getAdapter().getItem(arg2);
  • vous êtes de droite. Je l'ai eu. Apprécié.
InformationsquelleAutor Chintan Soni | 2013-02-15