I am using a gridview of photos. Long pressing a photo will start to count the number of selected photos. Coding as follows:
gd_view.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener()
{
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu)
{
// TODO Auto-generated method stub
return false;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
// TODO Auto-generated method stub
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
return true;
}
@Override
public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked)
{
int selectCount = gd_view.getCheckedItemCount();
switch (selectCount)
{
case 1:
mode.setSubtitle("1 item selected");
break;
default:
mode.setSubtitle("" + selectCount + " items selected");
break;
}
}
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu)
{
mode.setTitle("Select Items");
mode.setSubtitle("1 item selected");
return true;
}
});
Instead of showing contextual action bar at the top, can I inflate a custom menu at any desired location, e.g. bottom of my app so as to select / dis-select items ? I would like to share the selected photos afterwards.
You can do that by using support Toolbar like this:
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
You can place this toolbar anywhere in your activity's XML file.
You need to set this toolbar as action bar in your activity like this:
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
}