ActionBar

DISPLAY_HOME_AS_UP

int DISPLAY_HOME_AS_UP

Display the 'home' element such that it appears as an 'up' affordance. e.g. show an arrow to the left indicating the action that will be taken. Set this flag if selecting the 'home' button in the action bar to return up by a single level in your UI rather than back to the top level or front page.

Setting this option will implicitly enable interaction with the home/up button. See setHomeButtonEnabled(boolean).

Constant Value: 4 (0x00000004)

DISPLAY_SHOW_CUSTOM

int DISPLAY_SHOW_CUSTOM

Show the custom view if one has been set.

Constant Value: 16 (0x00000010)

DISPLAY_SHOW_HOME

int DISPLAY_SHOW_HOME

Show 'home' elements in this action bar, leaving more space for other navigation elements. This includes logo and icon.

Constant Value: 2 (0x00000002)

DISPLAY_SHOW_TITLE

int DISPLAY_SHOW_TITLE

Show the activity title and subtitle, if present.

Constant Value: 8 (0x00000008)

DISPLAY_USE_LOGO

int DISPLAY_USE_LOGO

Use logo instead of icon if available. This flag will cause appropriate navigation modes to use a wider logo in place of the standard icon.

Constant Value: 1 (0x00000001)

NAVIGATION_MODE_LIST

int NAVIGATION_MODE_LIST

This constant was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

List navigation mode. Instead of static title text this mode presents a list menu for navigation within the activity. e.g. this might be presented to the user as a dropdown list.

Constant Value: 1 (0x00000001)

NAVIGATION_MODE_STANDARD

int NAVIGATION_MODE_STANDARD

This constant was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Standard navigation mode. Consists of either a logo or icon and title text with an optional subtitle. Clicking any of these elements will dispatch onOptionsItemSelected to the host Activity with a MenuItem with item ID android.R.id.home.

Constant Value: 0 (0x00000000)

NAVIGATION_MODE_TABS

int NAVIGATION_MODE_TABS

This constant was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Tab navigation mode. Instead of static title text this mode presents a series of tabs for navigation within the activity.

Constant Value: 2 (0x00000002)

ActionBar

ActionBar ()

addOnMenuVisibilityListener

void addOnMenuVisibilityListener (ActionBar.OnMenuVisibilityListener listener)

Add a listener that will respond to menu visibility change events.

addTab

void addTab (ActionBar.Tab tab, 
                int position)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Add a tab for use in tabbed navigation mode. The tab will be inserted at position. If this is the first tab to be added it will become the selected tab.

addTab

void addTab (ActionBar.Tab tab)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Add a tab for use in tabbed navigation mode. The tab will be added at the end of the list. If this is the first tab to be added it will become the selected tab.

addTab

void addTab (ActionBar.Tab tab, 
                int position, 
                boolean setSelected)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Add a tab for use in tabbed navigation mode. The tab will be insterted at position.

addTab

void addTab (ActionBar.Tab tab, 
                boolean setSelected)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Add a tab for use in tabbed navigation mode. The tab will be added at the end of the list.

getCustomView

View getCustomView ()

getDisplayOptions

int getDisplayOptions ()

getElevation

float getElevation ()

Get the Z-axis elevation of the action bar in pixels.

The action bar's elevation is the distance it is placed from its parent surface. Higher values are closer to the user.

getHeight

int getHeight ()

Retrieve the current height of the ActionBar.

getHideOffset

int getHideOffset ()

Return the current vertical offset of the action bar.

The action bar's current hide offset is the distance that the action bar is currently scrolled offscreen in pixels. The valid range is 0 (fully visible) to the action bar's current measured height (fully invisible).

getNavigationItemCount

int getNavigationItemCount ()

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Get the number of navigation items present in the current navigation mode.

getNavigationMode

int getNavigationMode ()

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Returns the current navigation mode. The result will be one of:

• NAVIGATION_MODE_STANDARD
• NAVIGATION_MODE_LIST
• NAVIGATION_MODE_TABS

getSelectedNavigationIndex

int getSelectedNavigationIndex ()

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Get the position of the selected navigation item in list or tabbed navigation modes.

getSelectedTab

ActionBar.Tab getSelectedTab ()

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Returns the currently selected tab if in tabbed navigation mode and there is at least one tab present.

getSubtitle

CharSequence getSubtitle ()

Returns the current ActionBar subtitle in standard mode. Returns null if getNavigationMode() would not return NAVIGATION_MODE_STANDARD.

getTabAt

ActionBar.Tab getTabAt (int index)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Returns the tab at the specified index.

getTabCount

int getTabCount ()

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Returns the number of tabs currently registered with the action bar.

getThemedContext

Context getThemedContext ()

Returns a Context with an appropriate theme for creating views that will appear in the action bar. If you are inflating or instantiating custom views that will appear in an action bar, you should use the Context returned by this method. (This includes adapters used for list navigation mode.) This will ensure that views contrast properly against the action bar.

getTitle

CharSequence getTitle ()

Returns the current ActionBar title in standard mode. Returns null if getNavigationMode() would not return NAVIGATION_MODE_STANDARD.

hide

void hide ()

Hide the ActionBar if it is currently showing. If the window hosting the ActionBar does not have the feature FEATURE_ACTION_BAR_OVERLAY it will resize application content to fit the new space available.

Instead of calling this function directly, you can also cause an ActionBar using the overlay feature to hide through View.SYSTEM_UI_FLAG_FULLSCREEN. Hiding the ActionBar through this system UI flag allows you to more seamlessly hide it in conjunction with other screen decorations.

isHideOnContentScrollEnabled

boolean isHideOnContentScrollEnabled ()

Return whether the action bar is configured to scroll out of sight along with a nested scrolling child.

isShowing

boolean isShowing ()

newTab

ActionBar.Tab newTab ()

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Create and return a new ActionBar.Tab. This tab will not be included in the action bar until it is added.

Very often tabs will be used to switch between Fragment objects. Here is a typical implementation of such tabs:

import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.widget.Toast;

/**
 * This demonstrates the use of action bar tabs and how they interact
 * with other action bar features.
 */
public class FragmentTabs extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        final ActionBar bar = getActionBar();
        bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
        bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);

        bar.addTab(bar.newTab()
                .setText("Simple")
                .setTabListener(new TabListener<FragmentStack.CountingFragment>(
                        this, "simple", FragmentStack.CountingFragment.class)));
        bar.addTab(bar.newTab()
                .setText("Contacts")
                .setTabListener(new TabListener<LoaderCursor.CursorLoaderListFragment>(
                        this, "contacts", LoaderCursor.CursorLoaderListFragment.class)));
        bar.addTab(bar.newTab()
                .setText("Apps")
                .setTabListener(new TabListener<LoaderCustom.AppListFragment>(
                        this, "apps", LoaderCustom.AppListFragment.class)));
        bar.addTab(bar.newTab()
                .setText("Throttle")
                .setTabListener(new TabListener<LoaderThrottle.ThrottledLoaderListFragment>(
                        this, "throttle", LoaderThrottle.ThrottledLoaderListFragment.class)));

        if (savedInstanceState != null) {
            bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0));
        }
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt("tab", getActionBar().getSelectedNavigationIndex());
    }

    public static class TabListener<T extends Fragment> implements ActionBar.TabListener {
        private final Activity mActivity;
        private final String mTag;
        private final Class<T> mClass;
        private final Bundle mArgs;
        private Fragment mFragment;

        public TabListener(Activity activity, String tag, Class<T> clz) {
            this(activity, tag, clz, null);
        }

        public TabListener(Activity activity, String tag, Class<T> clz, Bundle args) {
            mActivity = activity;
            mTag = tag;
            mClass = clz;
            mArgs = args;

            // Check to see if we already have a fragment for this tab, probably
            // from a previously saved state.  If so, deactivate it, because our
            // initial state is that a tab isn't shown.
            mFragment = mActivity.getFragmentManager().findFragmentByTag(mTag);
            if (mFragment != null && !mFragment.isDetached()) {
                FragmentTransaction ft = mActivity.getFragmentManager().beginTransaction();
                ft.detach(mFragment);
                ft.commit();
            }
        }

        public void onTabSelected(Tab tab, FragmentTransaction ft) {
            if (mFragment == null) {
                mFragment = Fragment.instantiate(mActivity, mClass.getName(), mArgs);
                ft.add(android.R.id.content, mFragment, mTag);
            } else {
                ft.attach(mFragment);
            }
        }

        public void onTabUnselected(Tab tab, FragmentTransaction ft) {
            if (mFragment != null) {
                ft.detach(mFragment);
            }
        }

        public void onTabReselected(Tab tab, FragmentTransaction ft) {
            Toast.makeText(mActivity, "Reselected!", Toast.LENGTH_SHORT).show();
        }
    }
}

removeAllTabs

void removeAllTabs ()

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Remove all tabs from the action bar and deselect the current tab.

removeOnMenuVisibilityListener

void removeOnMenuVisibilityListener (ActionBar.OnMenuVisibilityListener listener)

Remove a menu visibility listener. This listener will no longer receive menu visibility change events.

removeTab

void removeTab (ActionBar.Tab tab)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Remove a tab from the action bar. If the removed tab was selected it will be deselected and another tab will be selected if present.

removeTabAt

void removeTabAt (int position)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Remove a tab from the action bar. If the removed tab was selected it will be deselected and another tab will be selected if present.

selectTab

void selectTab (ActionBar.Tab tab)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Select the specified tab. If it is not a child of this action bar it will be added.

Note: If you want to select by index, use setSelectedNavigationItem(int).

setBackgroundDrawable

void setBackgroundDrawable (Drawable d)

Set the ActionBar's background. This will be used for the primary action bar.

setCustomView

void setCustomView (View view, 
                ActionBar.LayoutParams layoutParams)

Set the action bar into custom navigation mode, supplying a view for custom navigation.

Custom navigation views appear between the application icon and any action buttons and may use any space available there. Common use cases for custom navigation views might include an auto-suggesting address bar for a browser or other navigation mechanisms that do not translate well to provided navigation modes.

The display option DISPLAY_SHOW_CUSTOM must be set for the custom view to be displayed.

setCustomView

void setCustomView (View view)

Set the action bar into custom navigation mode, supplying a view for custom navigation. Custom navigation views appear between the application icon and any action buttons and may use any space available there. Common use cases for custom navigation views might include an auto-suggesting address bar for a browser or other navigation mechanisms that do not translate well to provided navigation modes.

setCustomView

void setCustomView (int resId)

Set the action bar into custom navigation mode, supplying a view for custom navigation.

Custom navigation views appear between the application icon and any action buttons and may use any space available there. Common use cases for custom navigation views might include an auto-suggesting address bar for a browser or other navigation mechanisms that do not translate well to provided navigation modes.

The display option DISPLAY_SHOW_CUSTOM must be set for the custom view to be displayed.

setDisplayHomeAsUpEnabled

void setDisplayHomeAsUpEnabled (boolean showHomeAsUp)

Set whether home should be displayed as an "up" affordance. Set this to true if selecting "home" returns up by a single level in your UI rather than back to the top level or front page.

To set several display options at once, see the setDisplayOptions methods.

setDisplayOptions

void setDisplayOptions (int options, 
                int mask)

Set selected display options. Only the options specified by mask will be changed. To change all display option bits at once, see setDisplayOptions(int).

Example: setDisplayOptions(0, DISPLAY_SHOW_HOME) will disable the DISPLAY_SHOW_HOME option. setDisplayOptions(DISPLAY_SHOW_HOME, DISPLAY_SHOW_HOME | DISPLAY_USE_LOGO) will enable DISPLAY_SHOW_HOME and disable DISPLAY_USE_LOGO.

setDisplayOptions

void setDisplayOptions (int options)

Set display options. This changes all display option bits at once. To change a limited subset of display options, see setDisplayOptions(int, int).

setDisplayShowCustomEnabled

void setDisplayShowCustomEnabled (boolean showCustom)

Set whether a custom view should be displayed, if set.

To set several display options at once, see the setDisplayOptions methods.

setDisplayShowHomeEnabled

void setDisplayShowHomeEnabled (boolean showHome)

Set whether to include the application home affordance in the action bar. Home is presented as either an activity icon or logo.

To set several display options at once, see the setDisplayOptions methods.

setDisplayShowTitleEnabled

void setDisplayShowTitleEnabled (boolean showTitle)

Set whether an activity title/subtitle should be displayed.

To set several display options at once, see the setDisplayOptions methods.

setDisplayUseLogoEnabled

void setDisplayUseLogoEnabled (boolean useLogo)

Set whether to display the activity logo rather than the activity icon. A logo is often a wider, more detailed image.

To set several display options at once, see the setDisplayOptions methods.

setElevation

void setElevation (float elevation)

Set the Z-axis elevation of the action bar in pixels.

The action bar's elevation is the distance it is placed from its parent surface. Higher values are closer to the user.

setHideOffset

void setHideOffset (int offset)

Set the current hide offset of the action bar.

The action bar's current hide offset is the distance that the action bar is currently scrolled offscreen in pixels. The valid range is 0 (fully visible) to the action bar's current measured height (fully invisible).

setHideOnContentScrollEnabled

void setHideOnContentScrollEnabled (boolean hideOnContentScroll)

Enable hiding the action bar on content scroll.

If enabled, the action bar will scroll out of sight along with a nested scrolling child view's content. The action bar must be in overlay mode to enable hiding on content scroll.

When partially scrolled off screen the action bar is considered hidden. A call to show will cause it to return to full view.

setHomeActionContentDescription

void setHomeActionContentDescription (CharSequence description)

Set an alternate description for the Home/Up action, when enabled.

This description is commonly used for accessibility/screen readers when the Home action is enabled. (See setDisplayHomeAsUpEnabled(boolean).) Examples of this are, "Navigate Home" or "Navigate Up" depending on the DISPLAY_HOME_AS_UP display option. If you have changed the home-as-up indicator using setHomeAsUpIndicator(int) to indicate more specific functionality such as a sliding drawer, you should also set this to accurately describe the action.

Setting this to null will use the system default description.

setHomeActionContentDescription

void setHomeActionContentDescription (int resId)

Set an alternate description for the Home/Up action, when enabled.

This description is commonly used for accessibility/screen readers when the Home action is enabled. (See setDisplayHomeAsUpEnabled(boolean).) Examples of this are, "Navigate Home" or "Navigate Up" depending on the DISPLAY_HOME_AS_UP display option. If you have changed the home-as-up indicator using setHomeAsUpIndicator(int) to indicate more specific functionality such as a sliding drawer, you should also set this to accurately describe the action.

Setting this to 0 will use the system default description.

setHomeAsUpIndicator

void setHomeAsUpIndicator (int resId)

Set an alternate drawable to display next to the icon/logo/title when DISPLAY_HOME_AS_UP is enabled. This can be useful if you are using this mode to display an alternate selection for up navigation, such as a sliding drawer.

If you pass 0 to this method, the default drawable from the theme will be used.

If you implement alternate or intermediate behavior around Up, you should also call setHomeActionContentDescription() to provide a correct description of the action for accessibility support.

setHomeAsUpIndicator

void setHomeAsUpIndicator (Drawable indicator)

Set an alternate drawable to display next to the icon/logo/title when DISPLAY_HOME_AS_UP is enabled. This can be useful if you are using this mode to display an alternate selection for up navigation, such as a sliding drawer.

If you pass null to this method, the default drawable from the theme will be used.

If you implement alternate or intermediate behavior around Up, you should also call setHomeActionContentDescription() to provide a correct description of the action for accessibility support.

setHomeButtonEnabled

void setHomeButtonEnabled (boolean enabled)

Enable or disable the "home" button in the corner of the action bar. (Note that this is the application home/up affordance on the action bar, not the systemwide home button.)

This defaults to true for packages targeting < API 14. For packages targeting API 14 or greater, the application should call this method to enable interaction with the home/up affordance.

Setting the DISPLAY_HOME_AS_UP display option will automatically enable the home button.

setIcon

void setIcon (Drawable icon)

Set the icon to display in the 'home' section of the action bar. The action bar will use an icon specified by its style or the activity icon by default. Whether the home section shows an icon or logo is controlled by the display option DISPLAY_USE_LOGO.

setIcon

void setIcon (int resId)

Set the icon to display in the 'home' section of the action bar. The action bar will use an icon specified by its style or the activity icon by default. Whether the home section shows an icon or logo is controlled by the display option DISPLAY_USE_LOGO.

setListNavigationCallbacks

void setListNavigationCallbacks (SpinnerAdapter adapter, 
                ActionBar.OnNavigationListener callback)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Set the adapter and navigation callback for list navigation mode. The supplied adapter will provide views for the expanded list as well as the currently selected item. (These may be displayed differently.) The supplied OnNavigationListener will alert the application when the user changes the current list selection.

setLogo

void setLogo (int resId)

Set the logo to display in the 'home' section of the action bar. The action bar will use a logo specified by its style or the activity logo by default. Whether the home section shows an icon or logo is controlled by the display option DISPLAY_USE_LOGO.

setLogo

void setLogo (Drawable logo)

Set the logo to display in the 'home' section of the action bar. The action bar will use a logo specified by its style or the activity logo by default. Whether the home section shows an icon or logo is controlled by the display option DISPLAY_USE_LOGO.

setNavigationMode

void setNavigationMode (int mode)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Set the current navigation mode.

setSelectedNavigationItem

void setSelectedNavigationItem (int position)

This method was deprecated in API level 21.
Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

Set the selected navigation item in list or tabbed navigation modes.

setSplitBackgroundDrawable

void setSplitBackgroundDrawable (Drawable d)

Set the ActionBar's split background. This will appear in the split action bar containing menu-provided action buttons on some devices and configurations.

You can enable split action bar with uiOptions

setStackedBackgroundDrawable

void setStackedBackgroundDrawable (Drawable d)

Set the ActionBar's stacked background. This will appear in the second row/stacked bar on some devices and configurations.

setSubtitle

void setSubtitle (CharSequence subtitle)

Set the action bar's subtitle. This will only be displayed if DISPLAY_SHOW_TITLE is set. Set to null to disable the subtitle entirely.

setSubtitle

void setSubtitle (int resId)

Set the action bar's subtitle. This will only be displayed if DISPLAY_SHOW_TITLE is set.

setTitle

void setTitle (CharSequence title)

Set the action bar's title. This will only be displayed if DISPLAY_SHOW_TITLE is set.

setTitle

void setTitle (int resId)

Set the action bar's title. This will only be displayed if DISPLAY_SHOW_TITLE is set.

show

void show ()

Show the ActionBar if it is not currently showing. If the window hosting the ActionBar does not have the feature FEATURE_ACTION_BAR_OVERLAY it will resize application content to fit the new space available.

If you are hiding the ActionBar through View.SYSTEM_UI_FLAG_FULLSCREEN, you should not call this function directly.