For anyone needs to change the options of the menu dynamically: private Menu menu; // … @Override public boolean onCreateOptionsMenu(Menu menu) { this.menu = menu; getMenuInflater().inflate(R.menu.options, menu); return true; } // … private void hideOption(int id) { MenuItem item = menu.findItem(id); item.setVisible(false); } private void showOption(int id) { MenuItem item = menu.findItem(id); item.setVisible(true); } private … Read more
Probably you are missing required namespace: <menu xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:[yourapp]=”http://schemas.android.com/apk/res-auto”> <item android:id=”@+id/menu_add_size” android:title=”@string/menu_add_item” android:orderInCategory=”10″ [yourapp]:showAsAction=”always” android:icon=”@android:drawable/ic_menu_add” /> </menu> Replace [yourapp] with your app name or any namespace your heart desires everywhere. Other things worth checking: See if your activity class extends ActionBarActivity Check if the issue persists. Android reference documentation: Adding Action Buttons. Here is the … Read more
Anyway, the documentation covers all the things. Changing menu items at runtime Once the activity is created, the onCreateOptionsMenu() method is called only once, as described above. The system keeps and re-uses the Menu you define in this method until your activity is destroyed. If you want to change the Options Menu any time after … Read more
Add Following Code @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.new_item: Intent i = new Intent(this,SecondActivity.class); this.startActivity(i); return true; default: return super.onOptionsItemSelected(item); } }
From http://pmob.co.uk/pob/centred-float.htm: The premise is simple and basically just involves a widthless float wrapper that is floated to the left and then shifted off screen to the left width position:relative; left:-50%. Next the nested inner element is reversed and a relative position of +50% is applied. This has the effect of placing the element dead … Read more
One simple line in your theme 🙂 <item name=”android:actionMenuTextColor”>@color/your_color</item>
I would suggest keeping a reference within the activity to the Menu object you receive in onCreateOptionsMenu and then using that to retrieve the MenuItem that requires the change as and when you need it. For example, you could do something along the lines of the following: public class YourActivity extends Activity { private Menu … Read more
Get a MenuItem pointing to such item, call setVisible on it to adjust its visibility and then call invalidateOptionsMenu() on your activity so the ActionBar menu is adjusted accordingly. Update: A MenuItem is not a regular view that’s part of your layout. Its something special, completely different. Your code returns null for item and that’s … Read more
From Save (Not Permitted) Dialog Box on MSDN : The Save (Not Permitted) dialog box warns you that saving changes is not permitted because the changes you have made require the listed tables to be dropped and re-created. The following actions might require a table to be re-created: Adding a new column to the middle … Read more