ads in flet

[farhanMustapha]

Hi,
when I try to add AdMob ads to my app and then generate the APK, the app closes automatically when I run it on my phone.

[Laztef]

you need to integrate the app id admob in pyproject.toml file.

for Android

[tool.flet.android.meta_data]
"com.google.android.gms.ads.APPLICATION_ID" = "ca-app-pub-xxxxxxxxxxxxxxxx~yyyyyyyyyy"

for iOS

[tool.flet.ios.info]
GADApplicationIdentifier = "ca-app-pub-xxxxxxxxxxxxxxxx~yyyyyyyyyy"

[ndonkoHenri]

Video Tutorial: https://youtu.be/CgScZlh_xRs

[Laztef]

on flet 0.27.1 change anything?
I trying but the ad container is empty:
pyproject:
"""

[project]
name = "admob"
version = "0.1.0"
description = ""
readme = "README.md"
requires-python = ">=3.9"
authors = [
    { name = "Flet developer", email = "you@example.com" }
]
dependencies = [
  "flet==0.27.1",
  "flet-ads"
]

[tool.flet]
# org name in reverse domain name notation, e.g. "com.mycompany".
# Combined with project.name to build bundle ID for iOS and Android apps
org = "com.mycompany"


# project display name that is used as an app title on Android and iOS home screens,
# shown in window titles and about app dialogs on desktop.
product = "admob"

# company name to display in about app dialogs
company = "Flet"

# copyright text to display in about app dialogs
copyright = "Copyright (C) 2025 by Flet"

[tool.flet.app]
path = "src"

[tool.uv]
dev-dependencies = [
    "flet[all]==0.27.1",
]

[tool.poetry]
package-mode = false

[tool.poetry.group.dev.dependencies]
flet = {extras = ["all"], version = "0.27.1"}


[tool.flet.android.meta_data]
"com.google.android.gms.ads.APPLICATION_ID" = "ca-app-pub-3940256099942544~3347511713"  # Test ID

[tool.flet.ios.info]
GADApplicationIdentifier = "ca-app-pub-3940256099942544~3347511713"  # Test ID

"""
main.py:
"""

import flet as ft
import flet_ads as ads  # or "import flet_ads as ads" in Flet versions >= 0.26.0


def main(page: ft.Page):
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER

    id_interstitial = (
        "ca-app-pub-3940256099942544/1033173712"
        if page.platform == ft.PagePlatform.ANDROID
        else "ca-app-pub-3940256099942544/4411468910"  # iOS
    )

    id_banner = (
        "ca-app-pub-3940256099942544/6300978111"
        if page.platform == ft.PagePlatform.ANDROID
        else "ca-app-pub-3940256099942544/2934735716"  # iOS
    )  

    def handle_interstitial_close(e):
        """Called when the user closes the InterstitialAd by clicking on the "close" button at the top right.
        It removes this already used/opened InterstitialAd, and replaces it with a brand new one.
        """
        nonlocal iad
        page.overlay.remove(e.control)
        page.overlay.append(iad := get_new_interstitial_ad())
        page.update()

    def get_new_interstitial_ad():
        """Returns a new Interstitial Ad."""
        return ads.InterstitialAd(
            unit_id=id_interstitial,
            on_load=lambda e: print("InterstitialAd loaded"),
            on_error=lambda e: print("InterstitialAd error", e.data),
            on_open=lambda e: print("InterstitialAd opened"),
            on_close=handle_interstitial_close,
            on_impression=lambda e: print("InterstitialAd impression"),
            on_click=lambda e: print("InterstitialAd clicked"),
        )

    def display_new_banner_ad():
        """Displays a new Banner Ad on the Page."""
        try:
            page.add(
                ft.Container(
                    content=ads.BannerAd(
                        unit_id=id_banner,
                        on_click=lambda e: print("BannerAd clicked"),
                        on_load=lambda e: print("BannerAd loaded"),
                        on_error=lambda e: print("BannerAd error", e.data),
                        on_open=lambda e: print("BannerAd opened"),
                        on_close=lambda e: print("BannerAd closed"),
                        on_impression=lambda e: print("BannerAd impression"),
                        on_will_dismiss=lambda e: print("BannerAd will dismiss"),
                    ),
                    width=320,
                    height=50,
                    bgcolor=ft.colors.TRANSPARENT,
                ),
                ft.Text("Added")
        )
        except Exception as e:
            page.add(            
                ft.Text(f"{e}")
        )
            
        page.update()

    page.overlay.append(iad := get_new_interstitial_ad())
    page.appbar = ft.AppBar(
        adaptive=True,
        title=ft.Text("Mobile Ads Playground"),
        bgcolor=ft.colors.LIGHT_BLUE_300,
    )
    page.add(
        ft.OutlinedButton("Show InterstitialAd", on_click=lambda e: iad.show()),
        ft.OutlinedButton("Show BannerAd", on_click=lambda e: display_new_banner_ad()),
    )


ft.app(main)

"""
On this case i use a "ft.Text" with the testing intention.
Edit 25/2 17:00:
Use flet 0.27.0,
in pyproject declare:

dependencies = [
  "flet==0.27.0",
  "flet-ads"
]

and

[tool.flet.flutter]
dependencies = [  
  "flet_ads"
  ]

[ndonkoHenri]

Just from giving the latest Flet version a try and it works normally. Perhaps the ads on_error gets triggered on your end? Try replacing your error listeners with: on_error=lambda e: page.add(ft.Text("Error", e.data))

My apk file here. (link expires in 6 days)

main.py

import flet as ft
import flet_ads as ads


def main(page: ft.Page):
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER

    id_interstitial = (
        "ca-app-pub-3940256099942544/1033173712"
        if page.platform == ft.PagePlatform.ANDROID
        else "ca-app-pub-3940256099942544/4411468910"  # iOS
    )

    id_banner = (
        "ca-app-pub-3940256099942544/6300978111"
        if page.platform == ft.PagePlatform.ANDROID
        else "ca-app-pub-3940256099942544/2934735716"  # iOS
    )

    def handle_interstitial_close(e):
        """Called when the user closes the InterstitialAd by clicking on the "close" button at the top right.
        It removes this already used/opened InterstitialAd, and replaces it with a brand new one.
        """
        nonlocal iad
        page.overlay.remove(e.control)
        page.overlay.append(iad := get_new_interstitial_ad())
        page.update()

    def get_new_interstitial_ad():
        """Returns a new Interstitial Ad."""
        return ads.InterstitialAd(
            unit_id=id_interstitial,
            on_load=lambda e: print("InterstitialAd loaded"),
            on_error=lambda e: print("InterstitialAd error", e.data),
            on_open=lambda e: print("InterstitialAd opened"),
            on_close=handle_interstitial_close,
            on_impression=lambda e: print("InterstitialAd impression"),
            on_click=lambda e: print("InterstitialAd clicked"),
        )

    def display_new_banner_ad():
        """Displays a new Banner Ad on the Page."""
        page.add(
            ft.Container(
                content=ads.BannerAd(
                    unit_id=id_banner,
                    on_click=lambda e: print("BannerAd clicked"),
                    on_load=lambda e: print("BannerAd loaded"),
                    on_error=lambda e: print("BannerAd error", e.data),
                    on_open=lambda e: print("BannerAd opened"),
                    on_close=lambda e: print("BannerAd closed"),
                    on_impression=lambda e: print("BannerAd impression"),
                    on_will_dismiss=lambda e: print("BannerAd will dismiss"),
                ),
                width=320,
                height=50,
                bgcolor=ft.colors.TRANSPARENT,
            )
        )

    page.overlay.append(iad := get_new_interstitial_ad())
    page.appbar = ft.AppBar(
        adaptive=True,
        title=ft.Text("Mobile Ads Playground"),
        bgcolor=ft.colors.LIGHT_BLUE_300,
    )
    page.add(
        ft.OutlinedButton("Show InterstitialAd", on_click=lambda e: iad.show()),
        ft.OutlinedButton("Show BannerAd", on_click=lambda e: display_new_banner_ad()),
    )


ft.app(main)

pyproject.toml

[project]
name = "example-app"
version = "0.1.0"
description = "A Flet example application."
requires-python = ">=3.9"
authors = [
    { name = "TheEthicalBoy", email = "me@example.com" }
]

dependencies = [
  "flet",
  "flet-ads"
]

[tool.flet]
company = "Flet"
bundle_id = "com.flet.example-app"
ios_provisioning_profile = "Henri Ndonko Development com.flet.example-app"
ios_export_options = { "teamID" = "GXXRQJK434"}

[tool.poetry]
package-mode = false

[tool.flet.app]
path = "."

[tool.flet.android.meta_data]
"com.google.android.gms.ads.APPLICATION_ID" = "ca-app-pub-3940256099942544~3347511713"  # Test ID

[tool.flet.ios.info]
GADApplicationIdentifier = "ca-app-pub-3940256099942544~3347511713"  # Test ID