我想在我的 ListActivity 行的任意位置单击以继续进行另一个活动。目前，当单击 ImageView 时，我能够在日志中看到行位置，但单击未在行中的其他任何位置注册。此外，Toast 命令会使程序崩溃。对我既定目标的任何帮助将不胜感激。谢谢！
event_row.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="?android:attr/listPreferredItemHeight"
android:padding="6dip">
<ImageView
android:id="@+id/icon"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginRight="6dip"
android:contentDescription="@string/event_icon_desc"
android:src="@drawable/event_icon" />
<LinearLayout
android:orientation="vertical"
android:layout_width="0dip"
android:layout_weight="1"
android:layout_height="fill_parent">
<TextView
android:id="@+id/event_tv"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:textIsSelectable="true" />
<TextView
android:id="@+id/location_tv"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:singleLine="true"
android:textIsSelectable="true" />
<TextView
android:id="@+id/date_tv"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:singleLine="true"
android:ellipsize="marquee"
android:textIsSelectable="true" />
</LinearLayout>
</LinearLayout>
display_events_activity.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/event_ll" >
<ListView
android:id="@+id/android:list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<TextView
android:id="@+id/android:empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="@string/tv_empty" />
</LinearLayout>
显示事件.java：
public class DisplayEvents extends ListActivity {
private ProgressDialog progressDialog = null;
private ArrayList<Event> events = new ArrayList<Event>();
private EventAdapter eventAdapter;
private Runnable viewEvents;
//private final int ITEMS_PER_VIEW = 10;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.disp_events_activity);
new EventTask().execute();
this.eventAdapter = new EventAdapter(this, R.layout.event_row, this.events);
setListAdapter(this.eventAdapter);
viewEvents = new Runnable() {
@Override
public void run() {
getEvents();
}
};
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
private void getEvents() {
runOnUiThread(adaptEvents);
}
private Runnable adaptEvents = new Runnable() {
@Override
public void run() {
if (events != null && events.size() > 0) {
eventAdapter.notifyDataSetChanged();
for (int i=0; i<events.size(); i++)
eventAdapter.add(events.get(i));
}
progressDialog.dismiss();
eventAdapter.notifyDataSetChanged();
}
};
private class EventAdapter extends ArrayAdapter<Event> {
private ArrayList<Event> events;
public EventAdapter(Context context, int textViewResourceId, ArrayList<Event> events) {
super(context, textViewResourceId, events);
this.events = events;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater li = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = li.inflate(R.layout.event_row, null);
}
Event event = events.get(position);
if (event != null) {
TextView event_tv = (TextView) v.findViewById(R.id.event_tv);
TextView loc_tv = (TextView) v.findViewById(R.id.location_tv);
TextView date_tv = (TextView) v.findViewById(R.id.date_tv);
if (event_tv != null)
event_tv.setText("Event: " + event.getEventName());
if (loc_tv != null)
loc_tv.setText("Location: " + event.getPlace() + " - " + event.getCity());
if (date_tv != null)
date_tv.setText("Date: " + event.getDate());
}
v.setOnClickListener( new OnClickListener() {
public void onClick(View v) {
Log.v("text", "Image clicked, row %d"+position);
Toast.makeText(DisplayEvents.this, position, Toast.LENGTH_LONG).show();
}
});
return v;
}
}
public class EventTask extends AsyncTask<Void, Void, ArrayList<Event>> {
@Override
protected ArrayList<Event> doInBackground(Void... Void) {
ArrayList<Event> dbEvents = new ArrayList<Event>();
BuyTicketsConnection buyConnection = new BuyTicketsConnection();
dbEvents = buyConnection.getEventsList();
return dbEvents;
}
protected void onPostExecute(ArrayList<Event> dbEvents) {
events = dbEvents;
Thread thread = new Thread(null, viewEvents, "GetEventsBackground");
thread.start();
progressDialog = ProgressDialog.show(DisplayEvents.this, "Please wait...", "Retrieving events...", true);
}
}
}
编辑：
我现在有这个方法：
@覆盖
protected void onListItemClick (ListView l, View v, int position, long id){
Log.v("text", "Image clicked, row %d"+position);
Toast.makeText(DisplayEvents.this, position, Toast.LENGTH_LONG).show();
}
在我的 DisplayEvents (ListActivity) 类中，但仍然没有骰子。另外，我希望单击响应该列表项中的任何内容（请注意，该行布局中有许多视图应该继承单击事件处理程序）。
似乎问题是我应该如何让 event_row.xml 中的所有视图（ImageView 和 3 个 TextViews）与这个 OnListItemClick 处理程序相关联。在该 OnListItemClick 处理程序的上下文中如何识别整行（由 2 个 LinearLayout 中的 4 个视图组成）？