firebase::admob::BannerView

#include <banner_view.h>

Loads and displays AdMob banner ads.

Summary

Each BannerView object corresponds to a single AdMob banner placement. There are methods to load an ad, move it, show it and hide it, and retrieve the bounds of the ad onscreen.

BannerView objects maintain a presentation state that indicates whether or not they're currently onscreen, as well as a set of bounds (stored in a BoundingBox struct), but otherwise provide information about their current state through Futures. Methods like Initialize, LoadAd, and Hide each have a corresponding Future from which the result of the last call can be determined. The two variants of MoveTo share a single result Future, since they're essentially the same action.

In addition, applications can create their own subclasses of BannerView::Listener, pass an instance to the SetListener method, and receive callbacks whenever the presentation state or bounding box of the ad changes.

For example, you could initialize, load, and show a banner view while checking the result of the previous action at each step as follows:

namespace admob = ::firebase::admob;
admob::BannerView* banner_view = new admob::BannerView();
banner_view->Initialize(ad_parent, "YOUR_AD_UNIT_ID", desired_ad_size)

Then, later:

if (banner_view->InitializeLastResult().status() ==
    ::firebase::kFutureStatusComplete &&
    banner_view->InitializeLastResult().error() ==
    firebase::admob::kAdMobErrorNone) {
  banner_view->LoadAd(your_ad_request);
}

Constructors and Destructors
BannerView() Creates an uninitialized BannerView object.
~BannerView()

Public types
Position{   kPositionTop = 0,   kPositionBottom,   kPositionTopLeft,   kPositionTopRight,   kPositionBottomLeft,   kPositionBottomRight }	enum The possible screen positions for a BannerView.
PresentationState{   kPresentationStateHidden = 0,   kPresentationStateVisibleWithoutAd,   kPresentationStateVisibleWithAd,   kPresentationStateOpenedPartialOverlay,   kPresentationStateCoveringUI }	enum The presentation state of a BannerView.

Public functions
Destroy()	Future< void > Cleans up and deallocates any resources used by the BannerView.
DestroyLastResult() const	Future< void > Returns a Future containing the status of the last call to Destroy.
Hide()	Future< void > Hides the BannerView.
HideLastResult() const	Future< void > Returns a Future containing the status of the last call to Hide.
Initialize(AdParent parent, const char *ad_unit_id, AdSize size)	Future< void > Initializes the BannerView object.
InitializeLastResult() const	Future< void > Returns a Future that has the status of the last call to Initialize.
LoadAd(const AdRequest & request)	Future< void > Begins an asynchronous request for an ad.
LoadAdLastResult() const	Future< void > Returns a Future containing the status of the last call to LoadAd.
MoveTo(int x, int y)	Future< void > Moves the BannerView so that its top-left corner is located at (x, y).
MoveTo(Position position)	Future< void > Moves the BannerView so that it's located at the given pre-defined position.
MoveToLastResult() const	Future< void > Returns a Future containing the status of the last call to either version of MoveTo.
Pause()	Future< void > Pauses the BannerView.
PauseLastResult() const	Future< void > Returns a Future containing the status of the last call to Pause.
Resume()	Future< void > Resumes the BannerView after pausing.
ResumeLastResult() const	Future< void > Returns a Future containing the status of the last call to Resume.
SetListener(Listener *listener)	void Sets the Listener for this object.
Show()	Future< void > Shows the BannerView.
ShowLastResult() const	Future< void > Returns a Future containing the status of the last call to Show.
bounding_box() const	BoundingBox Retrieves the BannerView's current onscreen size and location.
presentation_state() const	PresentationState Returns the current presentation state of the BannerView.

Classes
firebase::admob::BannerView::Listener	A listener class that developers can extend and pass to a BannerView object's SetListener method to be notified of changes to the presentation state and bounding box.

Public types

Position

 Position

The possible screen positions for a BannerView.

Properties
kPositionBottom	Bottom of the screen, horizontally centered.
kPositionBottomLeft	Bottom-left corner of the screen.
kPositionBottomRight	Bottom-right corner of the screen.
kPositionTop	Top of the screen, horizontally centered.
kPositionTopLeft	Top-left corner of the screen.
kPositionTopRight	Top-right corner of the screen.

PresentationState

 PresentationState

The presentation state of a BannerView.

Properties
kPresentationStateCoveringUI	BannerView is completely covering the screen or has caused focus to leave the application (for example, when opening an external browser during a clickthrough).
kPresentationStateHidden	BannerView is currently hidden.
kPresentationStateOpenedPartialOverlay	BannerView is visible and has opened a partial overlay on the screen.
kPresentationStateVisibleWithAd	BannerView is visible and contains an ad.
kPresentationStateVisibleWithoutAd	BannerView is visible, but does not contain an ad.

Public functions

BannerView

 BannerView()

Creates an uninitialized BannerView object.

Initialize must be called before the object is used.

Destroy

Future< void > Destroy()

Cleans up and deallocates any resources used by the BannerView.

DestroyLastResult

Future< void > DestroyLastResult() const 

Returns a Future containing the status of the last call to Destroy.

Hide

Future< void > Hide()

Hides the BannerView.

HideLastResult

Future< void > HideLastResult() const 

Returns a Future containing the status of the last call to Hide.

Initialize

Future< void > Initialize(
  AdParent parent,
  const char *ad_unit_id,
  AdSize size
)

Initializes the BannerView object.

Details
Parameters	parent The platform-specific UI element that will host the ad. ad_unit_id The ad unit ID to use when requesting ads. size The desired ad size for the banner.

InitializeLastResult

Future< void > InitializeLastResult() const 

Returns a Future that has the status of the last call to Initialize.

LoadAd

Future< void > LoadAd(
  const AdRequest & request
)

Begins an asynchronous request for an ad.

If successful, the ad will automatically be displayed in the BannerView.

Details
Parameters	request An AdRequest struct with information about the request to be made (such as targeting info).

LoadAdLastResult

Future< void > LoadAdLastResult() const 

Returns a Future containing the status of the last call to LoadAd.

MoveTo

Future< void > MoveTo(
  int x,
  int y
)

Moves the BannerView so that its top-left corner is located at (x, y).

Coordinates are in pixels from the top-left corner of the screen.

When built for Android, the library will not display an ad on top of or beneath an Activity's status bar. If a call to MoveTo would result in an overlap, the BannerView is placed just below the status bar, so no overlap occurs.

Details
Parameters	x The desired horizontal coordinate. y The desired vertical coordinate.

MoveTo

Future< void > MoveTo(
  Position position
)

Moves the BannerView so that it's located at the given pre-defined position.

Details
Parameters	position The pre-defined position to which to move the BannerView.

MoveToLastResult

Future< void > MoveToLastResult() const 

Returns a Future containing the status of the last call to either version of MoveTo.

Pause

Future< void > Pause()

Pauses the BannerView.

Should be called whenever the C++ engine pauses or the application loses focus.

PauseLastResult

Future< void > PauseLastResult() const 

Returns a Future containing the status of the last call to Pause.

Resume

Future< void > Resume()

Resumes the BannerView after pausing.

ResumeLastResult

Future< void > ResumeLastResult() const 

Returns a Future containing the status of the last call to Resume.

SetListener

void SetListener(
  Listener *listener
)

Sets the Listener for this object.

Details
Parameters	listener A valid BannerView::Listener to receive callbacks.

Show

Future< void > Show()

Shows the BannerView.

ShowLastResult

Future< void > ShowLastResult() const 

Returns a Future containing the status of the last call to Show.

bounding_box

BoundingBox bounding_box() const 

Retrieves the BannerView's current onscreen size and location.

Details
Returns	The current size and location. Values are in pixels, and location coordinates originate from the top-left corner of the screen.

presentation_state

PresentationState presentation_state() const 

Returns the current presentation state of the BannerView.

Details
Returns	The current presentation state.

~BannerView

 ~BannerView()

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