La sélection mettant en évidence plusieurs éléments dans listview avec adaptateur personnalisé - Android

J'ai suivi un bon tutoriel, avec quelques modifications, afin de créer un personnalisé ListView qui va me permettre d'afficher plusieurs images pour chaque ligne de ma ListView. Ce que je voudrais faire est de mettre en évidence par la sélection de plusieurs éléments dans la liste, puis effectuer une action à l'ensemble de ces éléments de la liste en sélectionnant une option sur mon Menu d'Options. Cependant, le problème me semble être en cours d'exécution, c'est que je ne peut pas sélectionner plusieurs éléments, même si j'ai ajouté android:choiceMode="multipleChoice" à la ListView dans le .fichier xml. Je me rends compte que cela peut être fait à l'aide de cases à cocher ou des boutons radio, mais je préfère éviter. J'ai joint mon code source ci-dessous. Toute aide serait appréciée. Enfin, grâce à http://custom-android-dn.blogspot.com/ pour un bon tutoriel. Merci.

CustomlistviewActivity.java

package DucNguyen.example.customlistview;
public class CustomlistviewActivity extends Activity {
private ListView listViewFootballLegend;
private Context ctx;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_customlistview);        
ctx=this;   
List<FootballLegend> legendList= new ArrayList<FootballLegend>();
legendList.add(new FootballLegend("Pele","October 23, 1940 (age 72)","pele","brazil"));
legendList.add(new FootballLegend("Diego Maradona","October 30, 1960 (age 52)","maradona","argentina"));
legendList.add(new FootballLegend("Johan Cruyff","April 25, 1947 (age 65)","cruyff","netherlands"));
legendList.add(new FootballLegend("Franz Beckenbauer","September 11, 1945 (age 67)","beckenbauer","germany"));
legendList.add(new FootballLegend("Michel Platini","June 21, 1955 (age 57)","platini","france"));
legendList.add(new FootballLegend("Ronaldo De Lima","September 22, 1976 (age 36)","ronaldo","brazil"));
listViewFootballLegend = ( ListView ) findViewById( R.id.FootballLegend_list);
listViewFootballLegend.setAdapter( new FootballLegendListAdapter(ctx, R.layout.legend_row_item, legendList ) );
//Click event for single list row
listViewFootballLegend.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
FootballLegend o = (FootballLegend) parent.getItemAtPosition(position);  
Toast.makeText(CustomlistviewActivity.this, o.getName().toString(), Toast.LENGTH_SHORT).show();
}
});     
} 
}

FootballLegendListAdapter.java

package DucNguyen.example.customlistview;
public class FootballLegendListAdapter extends ArrayAdapter<FootballLegend> {
private int             resource;
private LayoutInflater  inflater;
private Context         context;
public FootballLegendListAdapter ( Context ctx, int resourceId, List<FootballLegend> objects) {
super( ctx, resourceId, objects );
resource = resourceId;
inflater = LayoutInflater.from( ctx );
context=ctx;
}
@Override
public View getView ( int position, View convertView, ViewGroup parent ) { 
convertView = ( RelativeLayout ) inflater.inflate( resource, null ); 
FootballLegend Legend = getItem( position );
TextView legendName = (TextView) convertView.findViewById(R.id.legendName);
legendName.setText(Legend.getName());
TextView legendBorn = (TextView) convertView.findViewById(R.id.legendBorn);
legendBorn.setText(Legend.getNick());
ImageView legendImage = (ImageView) convertView.findViewById(R.id.legendImage);
String uri = "drawable/" + Legend.getImage();
int imageResource = context.getResources().getIdentifier(uri, null, context.getPackageName());
Drawable image = context.getResources().getDrawable(imageResource);
legendImage.setImageDrawable(image);
ImageView NationImage = (ImageView) convertView.findViewById(R.id.Nation);
uri = "drawable/" + Legend.getNation();
imageResource = context.getResources().getIdentifier(uri, null, context.getPackageName());
image = context.getResources().getDrawable(imageResource);
NationImage.setImageDrawable(image);
return convertView;
}
}

FootballLegend.java

package DucNguyen.example.customlistview;
public class FootballLegend {
public FootballLegend(String name, String born, String image, String nation) {
super();
this.name = name;
this.born = born;
this.image = image;
this.nation = nation;
}
private String name;
private String born;
private String image;
private String nation;
public String getName() {
return name;
}
public void setName(String nameText) {
name = nameText;
}
public String getNick() {
return born;
}
public void setNick(String born) {
this.born = born;
}
public String getImage() {
return image;
}
public void setImage(String image) {
this.image = image;
}
public String getNation() {
return nation;
}
public void setNation(String image) {
this.image = nation;
}
}

legend_row_item.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dip" >
<!--  ListRow Left side Thumbnail image -->
<LinearLayout android:id="@+id/thumbnail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:layout_alignParentLeft="true"
android:layout_marginRight="5dip"> 
<ImageView
android:id="@+id/legendImage"
android:layout_width="50dip"
android:layout_height="50dip" /> 
</LinearLayout>
<TextView
android:id="@+id/legendName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/thumbnail"
android:layout_toRightOf="@+id/thumbnail"
android:textColor="#040404"
android:typeface="sans"
android:textSize="15dip"
android:textStyle="bold"/>
<TextView
android:id="@+id/legendBorn"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/legendName"
android:textColor="#343434"
android:textSize="10dip"
android:layout_marginTop="1dip"
android:layout_toRightOf="@+id/thumbnail"  />
<ImageView
android:id="@+id/Nation"
android:layout_width="45dp"
android:layout_height="30dp"
android:layout_alignParentRight="true"
android:layout_marginRight="5dp"
android:layout_centerVertical="true" />
</RelativeLayout>

activity_customlistview.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/FootballLegend_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingTop="5dp"
android:choiceMode="multipleChoice" >
</ListView>
</LinearLayout>

OriginalL'auteur Willis | 2014-10-30