Android Action Bar Example Code - Android
How to handle action bar in android?
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Android action bar is a application which performs some actions and provide navigation which helps to an create elegant user interfaces. Steps to create action bar in android are:Remove default action bar in your file to add new action bar. Create activity_main_actions.xml file under res-->menu. Next,to make an interactions for the item. You need to open your main activity and then override onOptionsItemSelected() method. Selected action for item can be identified by using it’s id.
activity_main_actions.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- Search / will display always -->
<item android:id="@ id/action_search"
android:icon="@drawable/ic_action_search"
android:title="@string/action_search"
android:showAsAction="ifRoom"/>
<!-- Location Found -->
<item android:id="@ id/action_location_found"
android:icon="@drawable/ic_action_location_found"
android:title="@string/action_location_found"
android:showAsAction="ifRoom" />
<!-- Refresh -->
<item android:id="@ id/action_refresh"
android:icon="@drawable/ic_action_refresh"
android:title="@string/action_refresh"
android:showAsAction="ifRoom" />
<!-- Help -->
<item android:id="@ id/action_help"
android:icon="@drawable/ic_action_help"
android:title="@string/action_help"
android:showAsAction="never"/>
<!-- Check updates -->
<item android:id="@ id/action_check_updates"
android:icon="@drawable/ic_action_refresh"
android:title="@string/action_check_updates"
android:showAsAction="never" />
</menu>
override onOptionsItemSelected() method:
public class MainActivity extends Activity{
/**
* On selecting action bar icons
* */
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Take appropriate action for each action item click
switch (item.getItemId()) {
case R.id.action_search:
// search action
return true;
case R.id.action_location_found:
// location found
LocationFound();
return true;
case R.id.action_refresh:
// refresh
return true;
case R.id.action_help:
// help action
return true;
case R.id.action_check_updates:
// check for updates action
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/**
* Launching new activity
* */
private void LocationFound() {
Intent i = new Intent(MainActivity.this, LocationFound.class);
startActivity(i);
}
}
