I had been developing Android applications, but I don't know much about 4+ versions of Android well. Therefore, please help me - I have made Android application with tabs for navigation:
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
But I also need to add dropdown menu to ActionBar for other goals. Can I do it? Please, if it's possible, give me an example. Thank you in advance.
You can use something called an android spinner. It looks like this:
You can customize it in many ways to suit your apps design too.
Here's a great tutorial by Google on how to use these:
http://developer.android.com/guide/topics/ui/controls/spinner.html
If you want to add this to an action bar, you can do it via a spinner adapter as detailed here: http://developer.android.com/guide/topics/ui/actionbar.html#Dropdown
If you want to add icons to do certain actions, then you can see this: http://developer.android.com/guide/topics/ui/actionbar.html#ActionItems
If you want to do certain actions in the bar itself (like search in the google search app) then see this: http://developer.android.com/guide/topics/ui/actionbar.html#ActionView
If you want to add navigation tabs, then see this: http://developer.android.com/guide/topics/ui/actionbar.html#Tabs
Absolutely the best and and the simplest answer I found so far is here.
Basically, no need for custom layout in this case. Just set the actonViewClass:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:yourapp="http://schemas.android.com/apk/res-auto" >
<item android:id="@+id/spinner"
yourapp:showAsAction="ifRoom"
yourapp:actionViewClass="android.widget.Spinner" />
</menu>
And then handle it in onCreateOptionsMenu, as usual:
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_layout, menu);
MenuItem item = menu.findItem(R.id.spinner);
Spinner spinner = (Spinner) MenuItemCompat.getActionView(item);
spinner.setAdapter(adapter); // set the adapter to provide layout of rows and content
s.setOnItemSelectedListener(onItemSelectedListener); // set the listener, to perform actions based on item selection
This is by far the simplest and cleanest solution. Credits to François POYER, the original author.
