一旦用户长按我的 ListActivity 中的一个条目,我就会尝试显示一个菜单,但我无法弄清楚。Unfourtenatly 列表一直是我难以破解的难题,我仍在学习。
包android.GUI;
public class Shifts extends ListActivity implements OnClickListener,
SimpleGestureListener {
private Typeface tf = Entry.tf, tf2 = Entry.tf2;
public static int count = 1;
int dbHourTime = 0;
private SimpleGestureFilter detector;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.shifts);
detector = new SimpleGestureFilter(this, this);
DBAdapter DB = new DBAdapter(this);
DB.open();
Cursor cursor = DB.getAllShifts();
startManagingCursor(cursor);
cursor.moveToLast();
count = cursor.getPosition();
int g = count;
cursor.moveToNext();
String[] columns = new String[] { DB.KEY_DATE, DB.KEY_HOURS,
DB.KEY_DAY, DB.KEY_ROWID, DB.KEY_START, DB.KEY_END };
int[] to = new int[] { R.id.dateDisp, R.id.shiftDisp, R.id.day,
R.id.rawId, R.id.start, R.id.finish };
ListView ls = getListView();
TextView SF = (TextView) findViewById(R.id.total);
SF.setTypeface(tf);
TextView sum = (TextView)findViewById(R.id.sum);
sum.setTypeface(tf);
SimpleCursorAdapter mAdapter = new SimpleCursorAdapter(this,
R.layout.list_entry, cursor, columns, to);
this.setListAdapter(mAdapter);
}
@Override
protected void onListItemClick(ListView ls, View v, int position, long id) {
// TODO Auto-generated method stub
super.onListItemClick(ls, v, position, id);
CharSequence text = "Clicked";
final int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(this, text, duration);
toast.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER, 0, 0);
toast.show();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.view_shifts_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.back:
finish();
return true;
case R.id.clear:
DBAdapter DB = new DBAdapter(this);
DB.open();
DB.deleteAll();
startActivity(getIntent());
finish();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
@Override
public void onSwipe(int direction) {
Intent intent = new Intent();
switch (direction) {
case SimpleGestureFilter.SWIPE_RIGHT:
intent.setClass(this, Main.class);
startActivity(intent);
break;
case SimpleGestureFilter.SWIPE_LEFT:
intent.setClass(this, Entry.class);
startActivity(intent);
break;
case SimpleGestureFilter.SWIPE_DOWN:
break;
case SimpleGestureFilter.SWIPE_UP:
break;
}
}
@Override
public boolean dispatchTouchEvent(MotionEvent me) {
this.detector.onTouchEvent(me);
return super.dispatchTouchEvent(me);
}
@Override
public void onDoubleTap() {
// TODO Auto-generated method stub
}
@Override
public void onListItemClick(ListActivity l, View v, int position, long id) {
// TODO Auto-generated method stub
}
}