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    <p>This Code is Working</p> <pre><code>import android.app.Activity; import android.os.Bundle; import android.view.Gravity; import android.view.Menu; import android.view.MenuItem; import android.view.SubMenu; import android.widget.Toast; /** * Class which shows how to work with Submenus * * @author FaYna Soft Labs */ public class Main extends Activity { private static final int FILE = 0; private static final int EDIT = 1; private static final int NEW_MENU_ITEM = Menu.FIRST; private static final int SAVE_MENU_ITEM = NEW_MENU_ITEM + 1; private static final int UNDO_MENU_ITEM = SAVE_MENU_ITEM + 1; private static final int REDO_MENU_ITEM = UNDO_MENU_ITEM + 1; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } @Override public boolean onCreateOptionsMenu(Menu menu) { SubMenu fileMenu = menu.addSubMenu("File"); SubMenu editMenu = menu.addSubMenu("Edit"); fileMenu.add(FILE, NEW_MENU_ITEM, 0, "new"); fileMenu.add(FILE, SAVE_MENU_ITEM, 1, "save"); editMenu.add(EDIT, UNDO_MENU_ITEM, 0, "undo"); editMenu.add(EDIT, REDO_MENU_ITEM, 1, "redo"); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case NEW_MENU_ITEM: showMsg("New"); break; case SAVE_MENU_ITEM: showMsg("Save"); break; case UNDO_MENU_ITEM: showMsg("Undo"); break; case REDO_MENU_ITEM: showMsg("Redo"); break; } return super.onOptionsItemSelected(item); } private void showMsg(String message) { Toast msg = Toast.makeText(Main.this, message, Toast.LENGTH_LONG); msg.setGravity(Gravity.CENTER, msg.getXOffset() / 2, msg.getYOffset() / 2); msg.show(); } } </code></pre>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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