カスタム アダプターを含むリストビューがあります。listView のカスタム行には、クリックしたときに何かを処理する必要がある 2 つの imagebuttons が含まれています。しかし、アプリを起動してimagebuttonをクリックしても何も起こらないため、うまく機能しませんが、最初に行をクリックしてからimageButtonをクリックすると、クリックが処理されます。ここで他のユーザーを助けるいくつかの解決策を試しましたが、行のクリック後に処理されるという私とまったく同じ問題はありませんでした。
お気に入りの科目
public class FavoriteActivity extends Activity {
private List<Favorite> favoriteItem = new ArrayList<Favorite>();
ViewHolder holder = new ViewHolder();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.favorite);
populateFavoriteList();
populateListview();
registerClickCallBack();
}
private void populateFavoriteList() {
favoriteItem.add(new Favorite(R.drawable.icon_camera, "item 1"));
favoriteItem.add(new Favorite(R.drawable.icon_camera, "item 2"));
favoriteItem.add(new Favorite(R.drawable.icon_camera, "item 3"));
favoriteItem.add(new Favorite(R.drawable.icon_camera, "item 4"));
favoriteItem.add(new Favorite(R.drawable.icon_camera, "item 5"));
favoriteItem.add(new Favorite(R.drawable.icon_camera, "item 6"));
favoriteItem.add(new Favorite(R.drawable.icon_camera, "item 7"));
favoriteItem.add(new Favorite(R.drawable.icon_camera, "item 8"));
}
private void populateListview() {
ArrayAdapter<Favorite> adapter = new MyListAdapter();
ListView list = (ListView) findViewById(R.id.favoriteList);
list.setAdapter(adapter);
}
private class MyListAdapter extends ArrayAdapter<Favorite> {
public MyListAdapter() {
super(FavoriteActivity.this, R.layout.favorite_row, favoriteItem);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// To be sure we have a view, because null is possible
View itemView = convertView;
if (itemView == null) {
itemView = getLayoutInflater().inflate(R.layout.favorite_row, parent, false);
}
// Find the item to work with
Favorite currentItem = favoriteItem.get(position);
// Filling the View
holder.thumbnail = (ImageButton) itemView.findViewById(R.id.favoriteThumbnail);
holder.thumbnail.setBackgroundResource(currentItem.getThumbnail());
holder.name = (TextView) itemView.findViewById(R.id.favoriteName);
holder.name.setText(currentItem.getName());
return itemView;
}
}
private void registerClickCallBack() {
ListView list = (ListView) findViewById(R.id.favoriteList);
list.setOnItemClickListener(new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View viewClicked, int position, long id) {
final Favorite favoriteClicked = favoriteItem.get(position);
String msg = "Clicked position " + position + " which is " + favoriteClicked.getName();//Can I use my holder here to get the name back?? Because it wasn't working...
Toast.makeText(FavoriteActivity.this, msg, Toast.LENGTH_LONG).show();
ImageButton btnDirections = (ImageButton) viewClicked.findViewById(R.id.favoriteDirections);
ImageButton btnDelete = (ImageButton) viewClicked.findViewById(R.id.favoriteDelete);
btnDirections.setOnClickListener(new OnClickListener() {
String btnmsg = "getting directions for " + favoriteClicked.getName();
@Override
public void onClick(View v) {
Toast.makeText(FavoriteActivity.this, btnmsg, Toast.LENGTH_LONG).show();
}
});
btnDelete.setOnClickListener(new OnClickListener() {
String btnmsg = "getting delete for " + favoriteClicked.getName();
@Override
public void onClick(View v) {
Toast.makeText(FavoriteActivity.this, btnmsg, Toast.LENGTH_LONG).show();
}
});
}
});
}
static class ViewHolder {
ImageButton thumbnail;
TextView name;
}
}
お気に入りクラス
public class Favorite {
private int favoriteThumbnail;
private String favoriteName;
public Favorite(int favoriteThumbnail, String favoriteName){
super();
this.favoriteThumbnail = favoriteThumbnail;
this.favoriteName = favoriteName;
}
public int getThumbnail(){
return favoriteThumbnail;
}
public String getName(){
return favoriteName;
}
}
お気に入り_行.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="wrap_content"
android:orientation="horizontal"
android:weightSum="4"
android:descendantFocusability="blocksDescendants">
<ImageButton
android:layout_width="75dp"
android:layout_height="65dp"
android:contentDescription="thumbnail"
android:src="@drawable/icon_camera"
android:layout_weight="2"
android:id="@+id/favoriteThumbnail"
android:scaleType="fitXY"
style="@style/favoriteRowItems"
android:focusable="false"/>
<TextView
android:id="@+id/favoriteName"
android:layout_weight="2"
android:layout_gravity="center_vertical"
android:text="Name"
android:textSize="30sp"
style="@style/favoriteRowItems"/>
<ImageButton
android:contentDescription="Direction"
android:layout_weight="0.5"
android:src="@drawable/icon_directions"
android:id="@+id/favoriteDirections"
style="@style/favoriteRowItems"
android:focusable="false"/>
<ImageButton
android:contentDescription="Delete from favorite"
android:layout_weight="0.5"
android:src="@drawable/icon_delete"
android:id="@+id/favoriteDelete"
style="@style/favoriteRowItems"
android:layout_marginRight="5dp"
android:focusable="false"/>
</LinearLayout>