Admob Extension for Defold

The Admob extension lets you display banner, interstitial and rewarded ads.

API Overview

Functions

• admob.enable_debug()
• admob.init()
• admob.load()
• admob.is_loaded()
• admob.hide_banner()

Events

• admob

Project Settings

Open game.project and a new entry to the dependencies property:

• https://github.com/Lerg/extension-admob/archive/master.zip

Then select Project -> Fetch Libraries to download the extension in your project.

You need to set the AdMob App Id for your iOS and/or Android app in game.project. To do so open your game.project and add these lines:

[admob]
ios_app_id = ca-app-pub-***~***
android_app_id = ca-app-pub-***~***

Replace ca-app-pub-***~*** with your app ids. It can now be viewed or changed in the normal view of the game.project file.

You need Defold version 1.2.165+

Functions

admob.enable_debug()

Enables additional output for debugging purposes.

---

admob.init(params)

Initializes the extension. This function has to be called first, before using any other methods of the extension.

params _required

Table. Contains parameters for the call — see the next section for details.

Parameter Reference

The params table includes parameters for the call.

test _optional

Boolean. If true, the test ads will be served. ALWAYS use test ads during the development.

listener _optional

Function. The callback function which receives all admob events.

Example

-- Banner id for iOS and Android.
local banner_id = {
	['iPhone OS'] = 'ca-app-pub-3940256099942544/2934735716',
	Android = 'ca-app-pub-3940256099942544/6300978111'
}
local sysinfo = sys.get_sys_info()

local function listener(event)
	print('admob event type', event.type)
	print('admob event phase', event.phase)
	if event.phase == 'init' then -- Admob has been initialized, now it's safe to load a banner.
		admob.load{
			type = 'banner',
			id = banner_id[sysinfo.system_name],
			size = 'smart',
			position = 'bottom',
			keywords = {'puzzle', 'game'}
		}
	end
end

-- Init Admob.
admob.init{
	test = true, -- ALWAYS use test ads, only disable when submitting to the stores.
	listener = listener
}

---

admob.load(params)

Loads a specified ad unit. It also allows you to specify additional targeting parameters. To understand all of them please read targeting guides for iOS and Android.

params _required

Table. Contains parameters for the call — see the next section for details.

Parameter Reference

The params table includes parameters for the call.

type _optional

String. Type of the ad unit: 'banner', 'interstitial' (default) or 'rewarded'.

id _required

String. Ad unit id, e.g. 'ca-app-pub-3940256099942544/1033173712'.

immersive _optional

Boolean. If true, the video ad will hide onscreen navigation bar on Android.

user_id _optional

String. Sets the user ID to be used in server-to-server reward callbacks.

keywords _optional

Array. A set of string keywords to be used when an ad is being chosed. E.g. {'action', 'game'}. It may increase your revenue by displaying relevant ads.

gender _optional

String. User gender: 'male' or 'female'.

is_designed_for_families _optional

Boolean. Set it to true if your app is accepted as "Designed For Families". Android only.

tag_for_child_directed_treatment _optional

Boolean. For purposes of the Children's Online Privacy Protection Act (COPPA), there is a setting called "tag for child-directed treatment". By setting this to true, you certify that this notification is accurate and you are authorized to act on behalf of the owner of the app. You understand that abuse of this setting may result in termination of your Google account.

tag_for_under_age_of_consent _optional

Boolean. See Users under the age of consent, default is false. iOS only for now.

non_personalized _optional

Boolean. Set it to true if you would like to request non-personalized ads. Under the Google EU User Consent Policy, you must make certain disclosures to your users in the European Economic Area (EEA) and obtain their consent to show personalized ads. This policy reflects the requirements of the EU ePrivacy Directive and the General Data Protection Regulation (GDPR).

restricted_data_processing _optional

Boolean. Set it to true if you would like to restrict data processing for compliance with the California Consumer Privacy Act (CCPA).

max_ad_content_rating _optional

String. AdMob returns ads with a content rating at or below the specified level. Possible values are: 'G', 'PG', 'T', 'MA'.

birthday _optional

Table. A table with three numeric components of a date: year, month and day. All fields are required. E.g. {year = 1970, month = 1, day = 1}.

location _optional

Table. A table with three numeric components of a location: latitude, longitude and accuracy. All fields are required. E.g. {latitude = 59.3385206, longitude = 18.0303522, accuracy = 20}.

content_url _optional

String. When requesting an ad, apps may pass the URL of the content they are serving. E.g. a blog post URL or a news URL that is being shown in your app.

size _optional

String. Banner size to load: 'banner' (default), 'large', 'medium', 'full', 'leaderboard', 'smart', 'smart_portrait' (iOS only), 'smart_landscape' (iOS only).

See "Banner sizes" section on Admob Android Banner and Admob iOS Banner pages for more details.

If a selected banner size can't fit on screen, it won't be displayed. A good option is to use the 'smart' banner size, in this case the actual size is adapted to the screen width.

position _optional

String. Banner position on screen: 'top' or 'bottom' (default).

Example

-- Load rewarded video ad.
admob.load{
	type = 'rewarded',
	id = 'ca-app-pub-3940256099942544/5224354917',
	immersive = true,
	keywords = {'action', 'game'}
}

-- Load banner ad.
admob.load{
	type = 'banner',
	id = 'ca-app-pub-3940256099942544/6300978111',
	size = 'smart_portrait',
	position = 'top'
}

---

admob.is_loaded(type)

Returns true if the specified ad type has been loaded.

type _required

String. Which adverstiment type to check: 'banner', 'interstitial' or 'rewarded'.

Example

print('Is an interstitial ad loaded? ' .. (admob.is_loaded('interstitial') and 'Yes' or 'No'))

---

admob.show(type)

Displays a loaded ads. Use admob.load() to load an ad before calling this method.

You can check if an ad has been loaded with admob.is_loaded() method or you can listen to the admob event with a loaded phase:

-- Inside admob listener.
if event.type == 'interstitial' and event.phase == 'loaded' then
	admob.show('interstitial')
end

Banners don't need this method because they are displayed automatically when loaded.

type _required

String. Which adverstiment type to display: 'interstitial' or 'rewarded'.

Example

admob.show('rewarded')

---

admob.hide_banner()

Removes a loaded banner from the screen.

---

Events

admob

Occurs when something has happened with ad units or when the extension has been initialized.

Properties Overview

event.name

event.is_error

event.error_code

event.error_message

event.phase

event.type

Properties

event.name

The string 'admob'.

---

event.is_error

Boolean. true in case of an error.

---

event.error_code

Number. Unique error code, present when event.is_error is true, nil otherwise.

---

event.error_message

String. Description of an error when event.is_error is true, nil otherwise.

---

event.phase

String. Phase of an ad unit lifetime.

Possible values depend on the ad type event.type.

banner

• 'closed' - banner ad is closed.
• 'failed_to_load' - banner ad request failed, is_error is true.
• 'left_application' - banner ad leaves the application (e.g., to go to the browser).
• 'loaded' - banner ad is loaded.
• 'opened' - banner ad is displayed.

interstitial

• 'closed' - interstitial ad is closed.
• 'failed_to_load' - interstitial ad request failed, is_error is true.
• 'left_application' - interstitial ad leaves the application (e.g., to go to the browser).
• 'loaded' - interstitial ad is loaded.
• 'opened' - interstitial ad is displayed.

rewarded

• 'closed' - video ad is closed.
• 'failed_to_load' - video ad request failed, is_error is true.
• 'left_application' - video ad leaves the application (e.g., to go to the browser).
• 'loaded' - video ad is loaded.
• 'opened' - video ad opens a overlay that covers the screen.
• 'rewarded' - video ad has triggered a reward.
• 'started' - video ad starts to play.

---

event.type

String. indicates the ad unit type: 'banner', 'interstitial' or 'rewarded'. Or extension initialization - 'init'.

---

Test Ads

ALWAYS use test ads during the development. Only switch to the real ads for submitting to the stores. To enable test ads use test = true option in the admob.init() call.

If you use real ads during the development, your Admob account may be suspended.

Demo

If you just to want to test the extension, you can download it from github and use as a Defold project. It will function as a demo. You don't need an Admob account for the demo.

Usage

Use admob.init() to initialize it when your app starts. A good place for that would be the init() function of some root game object. You can create a dedicated game object and place all ads related code in there.

Once the init process if finished (you can listen for the 'init' phase/type in the admob event or you can just wait), you can start loading ads. It's good to preload ads before you actually need to display it. Use admob.load() to load and admob.show() to show the ads.

When an ad has been closed (phase equals 'closed') you can preload next ad.

Banners are displayed automatically when loaded, no need to call admob.show() for them, however to remove a banner, you would need to use admob.hide_banner().

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Patreon

If you like this extension please consider supporting me on Patreon https://patreon.com/Lerg