Mediation networks may provide APIs in their own Android and iOS SDKs that allow for further ads customization. You can call these APIs from dart code by using a platform channel .
The following sample shows you how to call privacy APIs in AppLovin's Android and iOS SDKs from Dart.
Create a method channel in dart
In your dart code, create a method channel:
/// Wraps a method channel that makes calls to AppLovin privacy APIs.
class
MyMethodChannel
{
final
MethodChannel
_methodChannel
=
MethodChannel
(
'com.example.mediationexample/mediation-channel'
);
/// Sets whether the user is age restricted in AppLovin.
Future<void>
setAppLovinIsAgeRestrictedUser
(
bool
isAgeRestricted
)
async
{
return
_methodChannel
.
invokeMethod
(
'setIsAgeRestrictedUser'
,
{
'isAgeRestricted'
:
isAgeRestricted
,
},
);
}
/// Sets whether we have user consent for the user in AppLovin.
Future<void>
setHasUserConsent
(
bool
hasUserConsent
)
async
{
return
_methodChannel
.
invokeMethod
(
'setHasUserConsent'
,
{
'hasUserConsent'
:
hasUserConsent
,
},
);
}
}
Modify your Android code
Set up a method channel to make API calls to the AppLovin SDK in Android:
public
class
MainActivity
extends
FlutterActivity
{
private
static
final
String
CHANNEL_NAME
=
"com.example.mediationexample/mediation-channel"
;
@Override
public
void
configureFlutterEngine
(
@NonNull
FlutterEngine
flutterEngine
)
{
super
.
configureFlutterEngine
(
flutterEngine
);
// Set up a method channel for calling APIs in the AppLovin SDK.
new
MethodChannel
(
flutterEngine
.
getDartExecutor
().
getBinaryMessenger
(),
CHANNEL
)
.
setMethodCallHandler
(
(
call
,
result
)
-
>
{
switch
(
call
.
method
)
{
case
"setIsAgeRestrictedUser"
:
AppLovinPrivacySettings
.
setIsAgeRestrictedUser
(
call
.
argument
(
"isAgeRestricted"
),
context
);
result
.
success
(
null
);
break
;
case
"setHasUserConsent"
:
AppLovinPrivacySettings
.
setHasUserConsent
(
call
.
argument
(
"hasUserConsent"
),
context
);
result
.
success
(
null
);
break
;
default
:
result
.
notImplemented
();
break
;
}
}
);
}
}
Modify your iOS code
Set up a method channel to make API calls to the AppLovin SDK in iOS:
@implementation
AppDelegate
-
(
BOOL
)
application:
(
UIApplication
*
)
application
didFinishLaunchingWithOptions
:(
NSDictionary
*
)
launchOptions
{
[
GeneratedPluginRegistrant
registerWithRegistry
:
self
];
// Set up a method channel for calling methods in 3P SDKs.
FlutterViewController
*
controller
=
(
FlutterViewController
*
)
self
.
window
.
rootViewController
;
FlutterMethodChannel
*
methodChannel
=
[
FlutterMethodChannel
methodChannelWithName
:
@"com.example.mediationexample/mediation-channel"
binaryMessenger
:
controller
.
binaryMessenger
];
[
methodChannel
setMethodCallHandler
:^
(
FlutterMethodCall
*
call
,
FlutterResult
result
)
{
if
([
call
.
method
isEqualToString
:
@"setIsAgeRestrictedUser"
])
{
[
ALPrivacySettings
setIsAgeRestrictedUser
:
call
.
arguments
[
@"isAgeRestricted"
]];
result
(
nil
);
}
else
if
([
call
.
method
isEqualToString
:
@"setHasUserConsent"
])
{
[
ALPrivacySettings
setHasUserConsent
:
call
.
arguments
[
@"hasUserConsent"
]];
result
(
nil
);
}
else
{
result
(
FlutterMethodNotImplemented
);
}
}];
}
@end
Use your MethodChannel in Dart
Now you can use your MyMethodChannel
to call AppLovin privacy APIs from Dart:
/// An example widget for the home page of your app.
class
HomePage
extends
StatefulWidget
{
@override
_HomePageState
createState
()
=
>
_HomePageState
();
}
class
_HomePageState
extends
State<HomePage>
{
// Keep a reference to your MyMethodChannel.
static
MyMethodChannel
platform
=
MyMethodChannel
();
@override
void
initState
()
{
super
.
initState
();
_updateAppLovinSettingsAndLoadAd
();
}
Future<void>
_updateAppLovinSettingsAndLoadAd
()
async
{
// Update the AppLovin settings before loading an ad.
await
platform
.
setAppLovinIsAgeRestrictedUser
(
true
);
await
platform
.
setHasUserConsent
(
false
);
_loadAd
();
}
void
_loadAd
()
{
// TODO: Load an ad.
};
@override
Widget
build
(
BuildContext
context
)
{
// TODO: Build your widget.
}
}
More details on the APIs supported by other networks can be found in the Android and iOS documentation.
