我正在尝试为我的应用程序创建一个onDisimiss侦听器，因为现在这就是我的
活动
public class listview_test extends Activity {
ListView list;
String[] web = {
"Google Plus",
"Twitter",
"Windows",
} ;
Integer[] imageId = {
R.drawable.ic_launcher,
R.drawable.icon,
R.drawable.ic_launcher,
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_test);
final CustomList adapter = new
CustomList(listview_test.this, web, imageId);
list=(ListView)findViewById(R.id.list);
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Toast.makeText(listview_test.this, "You Clicked at " +web[+ position], Toast.LENGTH_SHORT).show();
}
});
SwipeDismissListViewTouchListener touchListener =
new SwipeDismissListViewTouchListener(
list,
new SwipeDismissListViewTouchListener.DismissCallbacks() {
@Override
public boolean canDismiss(int position) {
return true;
}
@Override
public void onDismiss(ListView listView, int[] reverseSortedPositions) {
for (int position : reverseSortedPositions) {
adapter.remove(adapter.getItem(position));
}
adapter.notifyDataSetChanged();
}
}
);
list.setOnTouchListener(touchListener);
// Setting this scroll listener is required to ensure that during ListView scrolling,
// we don't look for swipes.
list.setOnScrollListener(touchListener.makeScrollListener());
}
}
以及自定义适配器
public class CustomList extends ArrayAdapter<String>{
private final Activity context;
private final String[] web;
private final Integer[] imageId;
public CustomList(Activity context,
String[] web, Integer[] imageId) {
super(context, R.layout.weather_item, web);
this.context = context;
this.web = web;
this.imageId = imageId;
}
@Override
public View getView(int position, View view, ViewGroup parent) {
LayoutInflater inflater = context.getLayoutInflater();
View rowView= inflater.inflate(R.layout.weather_item, null, true);
TextView txtTitle = (TextView) rowView.findViewById(R.id.city);
ImageView imageView = (ImageView) rowView.findViewById(R.id.info_image);
txtTitle.setText(web[position]);
imageView.setImageResource(imageId[position]);
return rowView;
}
出于某种原因，每次我刷一个项目以将其关闭时，都会强制关闭并给我这个异常
java.lang.UnsupportedOperationException
在这一行
adapter.remove(adapter.getItem(position));
java.lang.UnsupportedOperationException
当您通过数组或不可修改的List返回Adapter时抛出。由于无法更改它们的大小，因此无法删除。
相反，请修改您的适配器，使其接受List而不是数组，并确保您传递的List是完全灵活的。
类似的东西
List <String> web = new ArrayList <String> ();
web.add ("Google Plus");
web.add ("Twitter");
//etc.
足以确保一个灵活的列表。
这意味着CustomList适配器还应该调用在List中也接受的超类构造函数，在本例中是
public ArrayAdapter (Context context, int resource, List<T> objects)
有关更多信息，请参阅ArrayAdapter文档。