* <?xml version="1.0" encoding="utf-8"?> * <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" * android:orientation="vertical" - * android:layout_width="match_parent" + * android:layout_width="match_parent" * android:layout_height="match_parent" * android:paddingLeft="8dp" * android:paddingRight="8dp"> - * + * * <ListView android:id="@id/android:list" - * android:layout_width="match_parent" + * android:layout_width="match_parent" * android:layout_height="match_parent" * android:background="#00FF00" * android:layout_weight="1" * android:drawSelectorOnTop="false"/> - * + * * <TextView id="@id/android:empty" - * android:layout_width="match_parent" + * android:layout_width="match_parent" * android:layout_height="match_parent" * android:background="#FF0000" * android:text="No data"/> * </LinearLayout> *- * + * *
* Row Layout *
@@ -96,27 +96,27 @@ import android.widget.ListView; * source for the resource two_line_list_item, which displays two data * fields,one above the other, for each list row. * - * + * ** <?xml version="1.0" encoding="utf-8"?> * <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" * android:layout_width="match_parent" * android:layout_height="wrap_content" * android:orientation="vertical"> - * + * * <TextView android:id="@+id/text1" * android:textSize="16sp" * android:textStyle="bold" * android:layout_width="match_parent" * android:layout_height="wrap_content"/> - * + * * <TextView android:id="@+id/text2" * android:textSize="16sp" * android:layout_width="match_parent" * android:layout_height="wrap_content"/> * </LinearLayout> *- * + * *
* You must identify the data bound to each TextView object in this layout. The * syntax for this is discussed in the next section. @@ -137,40 +137,40 @@ import android.widget.ListView; * Contacts provider for all contacts, then binding the Name and Company fields * to a two line row layout in the activity's ListView. *
- * + * *
* public class MyListAdapter extends ListActivity {
- *
+ *
* @Override
* protected void onCreate(Bundle savedInstanceState){
* super.onCreate(savedInstanceState);
- *
+ *
* // We'll define a custom screen layout here (the one shown above), but
* // typically, you could just use the standard ListActivity layout.
* setContentView(R.layout.custom_list_activity_view);
- *
+ *
* // Query for all people contacts using the {@link android.provider.Contacts.People} convenience class.
* // Put a managed wrapper around the retrieved cursor so we don't have to worry about
* // requerying or closing it as the activity changes state.
* mCursor = this.getContentResolver().query(People.CONTENT_URI, null, null, null, null);
* startManagingCursor(mCursor);
- *
- * // Now create a new list adapter bound to the cursor.
+ *
+ * // Now create a new list adapter bound to the cursor.
* // SimpleListAdapter is designed for binding to a Cursor.
* ListAdapter adapter = new SimpleCursorAdapter(
* this, // Context.
- * android.R.layout.two_line_list_item, // Specify the row template to use (here, two columns bound to the two retrieved cursor
+ * android.R.layout.two_line_list_item, // Specify the row template to use (here, two columns bound to the two retrieved cursor
* rows).
* mCursor, // Pass in the cursor to bind to.
* new String[] {People.NAME, People.COMPANY}, // Array of cursor columns to bind to.
* new int[] {android.R.id.text1, android.R.id.text2}); // Parallel array of which template objects to bind to those columns.
- *
+ *
* // Bind to our new adapter.
* setListAdapter(adapter);
* }
* }
*
- *
+ *
* @see #setListAdapter
* @see android.widget.ListView
*/
@@ -194,13 +194,13 @@ public class ListActivity extends Activity {
mList.focusableViewAvailable(mList);
}
};
-
+
/**
* This method will be called when an item in the list is selected.
* Subclasses should override. Subclasses can call
* getListView().getItemAtPosition(position) if they need to access the
* data associated with the selected item.
- *
+ *
* @param l The ListView where the click happened
* @param v The view that was clicked within the ListView
* @param position The position of the view in the list
@@ -208,11 +208,11 @@ public class ListActivity extends Activity {
*/
protected void onListItemClick(ListView l, View v, int position, long id) {
}
-
+
/**
* Ensures the list view has been created before Activity restores all
* of the view states.
- *
+ *
*@see Activity#onRestoreInstanceState(Bundle)
*/
@Override
@@ -221,10 +221,19 @@ public class ListActivity extends Activity {
super.onRestoreInstanceState(state);
}
+ /**
+ * @see Activity#onDestroy()
+ */
+ @Override
+ protected void onDestroy() {
+ mHandler.removeCallbacks(mRequestFocus);
+ super.onDestroy();
+ }
+
/**
* Updates the screen state (current list and other views) when the
* content changes.
- *
+ *
* @see Activity#onContentChanged()
*/
@Override
@@ -262,7 +271,7 @@ public class ListActivity extends Activity {
/**
* Set the currently selected list item to the specified
* position with the adapter's data
- *
+ *
* @param position
*/
public void setSelection(int position) {
@@ -290,7 +299,7 @@ public class ListActivity extends Activity {
ensureList();
return mList;
}
-
+
/**
* Get the ListAdapter associated with this activity's ListView.
*/
@@ -303,7 +312,7 @@ public class ListActivity extends Activity {
return;
}
setContentView(com.android.internal.R.layout.list_content);
-
+
}
private AdapterView.OnItemClickListener mOnClickListener = new AdapterView.OnItemClickListener() {
@@ -313,4 +322,3 @@ public class ListActivity extends Activity {
}
};
}
-