The android_sdk from syatam

Summary

This is the Android SDK of adjust™. You can read more about adjust™ at [adjust.com].

If your app is an app which uses web views and you would like to use adjust tracking from Javascript code, please consult our Android web views SDK guide.

Example app
Basic integration
Additional features
Troubleshooting
License

Example app

There is an example app inside the [example directory][example]. You can open the Android project to see an example on how the adjust SDK can be integrated.

Basic integration

These are the minimal steps required to integrate the adjust SDK into your Android project. We are going to assume that you use Android Studio for your Android development and target an Android API level 9 (Gingerbread) or later.

If you're using the [Maven Repository][maven] you can start with this step.

Get the SDK

Download the latest version from our [releases page][releases]. Extract the archive in a folder of your choice.

Import the Adjust module

In the Android Studio menu select File → Import Module....

![][import_module]

In the Source directory field, locate the folder you extracted in step 1. Select and choose the folder ./android_sdk/Adjust/adjust. Make sure the module name :adjust appears before finishing.

![][select_module]

The adjust module should be imported into your Android Studio project afterwards.

![][imported_module]

Add the SDK to your project

Open the build.gradle file of your app and find the dependencies block. Add the following line:

compile project(":adjust")

![][gradle_adjust]

If you are using Maven, add this line instead:

compile 'com.adjust.sdk:adjust-android:4.10.0'

Add Google Play Services

Since the 1st of August of 2014, apps in the Google Play Store must use the [Google Advertising ID][google_ad_id] to uniquely identify devices. To allow the adjust SDK to use the Google Advertising ID, you must integrate the [Google Play Services][google_play_services]. If you haven't done this yet, follow these steps:

Open the build.gradle file of your app and find the dependencies block. Add the following line:
```
compile 'com.google.android.gms:play-services-analytics:9.2.1'
```
![][gradle_gps]
Skip this step if you are using version 7 or later of Google Play Services: In the Package Explorer open the AndroidManifest.xml of your Android project. Add the following meta-data tag inside the <application> element.
```
<meta-data android:name="com.google.android.gms.version"
           android:value="@integer/google_play_services_version" />
```
![][manifest_gps]

Add permissions

In the Package Explorer open the AndroidManifest.xml of your Android project. Add the uses-permission tag for INTERNET if it's not present already.

<uses-permission android:name="android.permission.INTERNET" />

If you are not targeting the Google Play Store, add both of these permissions instead:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

![][manifest_permissions]

Proguard settings

If you are using Proguard, add these lines to your Proguard file:

-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}
-keep class com.adjust.sdk.plugin.MacAddressUtil {
    java.lang.String getMacAddress(android.content.Context);
}
-keep class com.adjust.sdk.plugin.AndroidIdUtil {
    java.lang.String getAndroidId(android.content.Context);
}
-keep class com.google.android.gms.common.ConnectionResult {
    int SUCCESS;
}
-keep class com.google.android.gms.ads.identifier.AdvertisingIdClient {
    com.google.android.gms.ads.identifier.AdvertisingIdClient$Info getAdvertisingIdInfo(android.content.Context);
}
-keep class com.google.android.gms.ads.identifier.AdvertisingIdClient$Info {
    java.lang.String getId();
    boolean isLimitAdTrackingEnabled();
}

If you are not targeting the Google Play Store, you can remove the com.google.android.gms rules.

![][proguard]

Important: If you are using an -overloadaggressively flag in your Proguard file, then in order for the adjust SDK to work properly you should consider one of two possible scenarios:

Remove -overloadaggressively if it is not necessary
Add a -useuniqueclassmembernames flag to your Proguard file

Adjust broadcast receiver

If you are not using your own broadcast receiver to receive INSTALL_REFERRER intent, add the following receiver tag inside the application tag in your AndroidManifest.xml.

<receiver
    android:name="com.adjust.sdk.AdjustReferrerReceiver"
    android:exported="true" >
    <intent-filter>
        <action android:name="com.android.vending.INSTALL_REFERRER" />
    </intent-filter>
</receiver>

![][receiver]

We use this broadcast receiver to retrieve the install referrer, in order to improve conversion tracking.

If you are already using a different broadcast receiver for the INSTALL_REFERRER intent, follow [these instructions][referrer] to add the Adjust broadcast receiver.

Integrate the SDK into your app

To start with, we'll set up basic session tracking.

Basic setup

We recommend using a global android [Application][android_application] class to initialize the SDK. If you don't have one in your app already, follow these steps:

Create a class that extends Application. ![][application_class]
Open the AndroidManifest.xml file of your app and locate the <application> element.
Add the attribute android:name and set it to the name of your new application class pefixed by a dot.

In our example app we use an Application class named GlobalApplication, so the manifest file is configured as:
```
 <application
   android:name=".GlobalApplication"
   ... >
     ...
</application>
```
![][manifest_application]
In your Application class find or create the onCreate method and add the following code to initialize the adjust SDK:
```
import com.adjust.sdk.Adjust;
import com.adjust.sdk.AdjustConfig;

public class GlobalApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();

        String appToken = "{YourAppToken}";
        String environment = AdjustConfig.ENVIRONMENT_SANDBOX;
        AdjustConfig config = new AdjustConfig(this, appToken, environment);
        Adjust.onCreate(config);
    }
}
```
![][application_config]

Replace {YourAppToken} with your app token. You can find this in your [dashboard].

Depending on whether you build your app for testing or for production, you must set environment with one of these values:
```
String environment = AdjustConfig.ENVIRONMENT_SANDBOX;
String environment = AdjustConfig.ENVIRONMENT_PRODUCTION;
```
Important: This value should be set to AdjustConfig.ENVIRONMENT_SANDBOX if and only if you or someone else is testing your app. Make sure to set the environment to AdjustConfig.ENVIRONMENT_PRODUCTION just before you publish the app. Set it back to AdjustConfig.ENVIRONMENT_SANDBOX when you start developing and testing it again.

We use this environment to distinguish between real traffic and test traffic from test devices. It is very important that you keep this value meaningful at all times! This is especially important if you are tracking revenue.

Session tracking

Note: This step is really important and please make sure that you implement it properly in your app. By implementing it, you will enable proper session tracking by the adjust SDK in your app.

API level 14 and higher

Add a private class that implements the ActivityLifecycleCallbacks interface. If you don't have access to this interface, your app is targeting an Android API level inferior to 14. You will have to update manually each Activity by following these instructions. If you had Adjust.onResume and Adjust.onPause calls on each Activity of your app before, you should remove them.

![][activity_lifecycle_class]
Edit the onActivityResumed(Activity activity) method and add a call to Adjust.onResume(). Edit the onActivityPaused(Activity activity) method and add a call to Adjust.onPause().

![][activity_lifecycle_methods]

Add on the onCreate() method where the adjust SDK is configured and add call registerActivityLifecycleCallbacks with an instance of the created ActivityLifecycleCallbacks class.

import com.adjust.sdk.Adjust;
import com.adjust.sdk.AdjustConfig;

public class GlobalApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();

        String appToken = "{YourAppToken}";
        String environment = AdjustConfig.ENVIRONMENT_SANDBOX;
        AdjustConfig config = new AdjustConfig(this, appToken, environment);
        Adjust.onCreate(config);

        registerActivityLifecycleCallbacks(new AdjustLifecycleCallbacks());

        //...
    }

     private static final class AdjustLifecycleCallbacks implements ActivityLifecycleCallbacks {
         @Override
         public void onActivityResumed(Activity activity) {
             Adjust.onResume();
         }

         @Override
         public void onActivityPaused(Activity activity) {
             Adjust.onPause();
         }

         //...
     }
  }

![][activity_lifecycle_register]

API level 9 until 13

If your app minSdkVersion in gradle is between 9 and 13, consider updating it to at least 14 to simplify the integration process in the long term. Consult the official Android [dashboard][android-dashboard] to know the latest market share of the major versions.

To provide proper session tracking it is required to call certain adjust SDK methods every time any Activity resumes or pauses. Otherwise the SDK might miss a session start or session end. In order to do so you should follow these steps for each Activity of your app:

Open the source file of your Activity.
Add the import statement at the top of the file.
In your Activity's onResume method call Adjust.onResume. Create the method if needed.
In your Activity's onPause method call Adjust.onPause. Create the method if needed.

After these steps your activity should look like this:

import com.adjust.sdk.Adjust;
// ...
public class YourActivity extends Activity {
    protected void onResume() {
        super.onResume();
        Adjust.onResume();
    }
    protected void onPause() {
        super.onPause();
        Adjust.onPause();
    }
    // ...
}

![][activity]

Repeat these steps for every Activity of your app. Don't forget these steps when you create new Activities in the future. Depending on your coding style you might want to implement this in a common superclass of all your Activities.

Adjust Logging

You can increase or decrease the amount of logs that you see during testing by calling setLogLevel on your AdjustConfig instance with one of the following parameters:

config.setLogLevel(LogLevel.VERBOSE);   // enable all logging
config.setLogLevel(LogLevel.DEBUG);     // enable more logging
config.setLogLevel(LogLevel.INFO);      // the default
config.setLogLevel(LogLevel.WARN);      // disable info logging
config.setLogLevel(LogLevel.ERROR);     // disable warnings as well
config.setLogLevel(LogLevel.ASSERT);    // disable errors as well

Build your app

Build and run your Android app. In your LogCat viewer you can set the filter tag:Adjust to hide all other logs. After your app has launched you should see the following Adjust log: Install tracked

![][log_message]

Additional Features

Once you have integrated the adjust SDK into your project, you can take advantage of the following features.

Event tracking

You can use adjust to track any event in your app. Suppose you want to track every tap on a button. You would have to create a new event token in your [dashboard]. Let's say that event token is abc123. In your button's onClick method you could then add the following lines to track the click:

AdjustEvent event = new AdjustEvent("abc123");
Adjust.trackEvent(event);

Revenue tracking

If your users can generate revenue by tapping on advertisements or making In-App Purchases you can track those revenues with events. Lets say a tap is worth one Euro cent. You could then track the revenue event like this:

AdjustEvent event = new AdjustEvent("abc123");
event.setRevenue(0.01, "EUR");
Adjust.trackEvent(event);

This can be combined with callback parameters of course.

When you set a currency token, adjust will automatically convert the incoming revenues into a reporting revenue of your choice. Read more about [currency conversion here.][currency-conversion]

You can read more about revenue and event tracking in the [event tracking guide.][event-tracking]

The event instance can be used to configure the event further before tracking it:

In-App Purchase verification

If you want to check the validity of In-App Purchases made in your app using Purchase Verification, adjust's server side receipt verification tool, then check out our Android purchase SDK to read more about it [here][android-purchase-verification].

Callback parameters

You can register a callback URL for your events in your [dashboard]. We will send a GET request to that URL whenever the event is tracked. You can add callback parameters to that event by calling addCallbackParameter to the event instance before tracking it. We will then append these parameters to your callback URL.

For example, suppose you have registered the URL http://www.adjust.com/callback then track an event like this:

AdjustEvent event = new AdjustEvent("abc123");

event.addCallbackParameter("key", "value");
event.addCallbackParameter("foo", "bar");

Adjust.trackEvent(event);

In that case we would track the event and send a request to:

http://www.adjust.com/callback?key=value&foo=bar

It should be mentioned that we support a variety of placeholders like {gps_adid} that can be used as parameter values. In the resulting callback this placeholder would be replaced with the Google Play Services ID of the current device. Also note that we don't store any of your custom parameters, but only append them to your callbacks. If you haven't registered a callback for an event, these parameters won't even be read.

You can read more about using URL callbacks, including a full list of available values, in our [callbacks guide][callbacks-guide].

Partner parameters

You can also add parameters to be transmitted to network partners, which have been activated in your adjust dashboard.

This works similarly to the callback parameters mentioned above, but can be added by calling the addPartnerParameter method on your AdjustEvent instance.

AdjustEvent event = new AdjustEvent("abc123");

event.addPartnerParameter("key", "value");
event.addPartnerParameter("foo", "bar");

Adjust.trackEvent(event);

You can read more about special partners and these integrations in our [guide to special partners.][special-partners]

Set up session parameters

Some parameters are saved to be sent in every event and session of the adjust SDK. Once you have added any of these parameters, you don't need to add them every time, since they will be saved locally. If you add the same parameter twice, there will be no effect.

These session parameters can be called before the adjust SDK is launched to make sure they are sent even on install. If you need to send them with an install, but can only obtain the needed values after launch, it's possible to delay the first launch of the adjust SDK to allow this behaviour.

Session callback parameters

The same callback parameters that are registered for events can be also saved to be sent in every event or session of the adjust SDK.

The session callback parameters have a similar interface to the event callback parameters. Instead of adding the key and it's value to an event, it's added through a call to Adjust.addSessionCallbackParameter(String key, String value):

Adjust.addSessionCallbackParameter("foo", "bar");

The session callback parameters will be merged with the callback parameters added to an event. The callback parameters added to an event have precedence over the session callback parameters. Meaning that, when adding a callback parameter to an event with the same key to one added from the session, the value that prevails is the callback parameter added to the event.

It's possible to remove a specific session callback parameter by passing the desiring key to the method Adjust.removeSessionCallbackParameter(String key).

Adjust.removeSessionCallbackParameter("foo");

If you wish to remove all keys and their corresponding values from the session callback parameters, you can reset it with the method Adjust.resetSessionCallbackParameters().

Adjust.resetSessionCallbackParameters();

Session partner parameters

In the same way that there are session callback parameters sent in every event or session of the adjust SDK, there is also session partner parameters.

These will be transmitted to network partners, for the integrations that have been activated in your adjust [dashboard].

The session partner parameters have a similar interface to the event partner parameters. Instead of adding the key and it's value to an event, it's added through a call to Adjust.addSessionPartnerParameter(String key, String value):

Adjust.addSessionPartnerParameter("foo", "bar");

The session partner parameters will be merged with the partner parameters added to an event. The partner parameters added to an event have precedence over the session partner parameters. Meaning that, when adding a partner parameter to an event with the same key to one added from the session, the value that prevails is the partner parameter added to the event.

It's possible to remove a specific session partner parameter by passing the desiring key to the method Adjust.removeSessionPartnerParameter(String key).

Adjust.removeSessionPartnerParameter("foo");

If you wish to remove all keys and their corresponding values from the session partner parameters, you can reset it with the method Adjust.resetSessionPartnerParameters().

Adjust.resetSessionPartnerParameters();

External device id

The adjust SDK uses device ids that are available from iOS, but your app might have other sources of identifiers that can help features like ad conversion.

To save your unique identifier in the session parameters that are send in every request and session, call the Adjust.addExternalDeviceId(String externalDeviceId) method:

Adjust.addExternalDeviceId("customDeviceId");

It's also possible to remove the saved unique identifier by calling the method Adjust.resetExternalDeviceId():

Adjust.resetExternalDeviceId();

Delay start

Delaying the start of the adjust SDK allows your app some time to obtain session parameters, such as unique identifiers, to be sent on install.

Set the initial delay time in seconds with the method setDelayStart in the AdjustConfig instance:

adjustConfig.setDelayStart(5.5);

In this case, this will make the adjust SDK not send the initial install session and any event created for 5.5 seconds. After this time is expired or if you call Adjust.sendFirstPackages() in the meanwhile, every session parameter will be added to the delayed install session and events and the adjust SDK will resume as usual.

The maximum delay start time of the adjust SDK is 10 seconds.

Attribution callback

You can register a listener to be notified of tracker attribution changes. Due to the different sources considered for attribution, this information can not be provided synchronously. The simplest way is to create a single anonymous listener:

Please make sure to consider our [applicable attribution data policies][attribution-data].

With the AdjustConfig instance, before starting the SDK, add the anonymous listener:

AdjustConfig config = new AdjustConfig(this, appToken, environment);

config.setOnAttributionChangedListener(new OnAttributionChangedListener() {
    @Override
    public void onAttributionChanged(AdjustAttribution attribution) {
    }
});

Adjust.onCreate(config);

Alternatively, you could implement the OnAttributionChangedListener interface in your Application class and set it as listener:

AdjustConfig config = new AdjustConfig(this, appToken, environment);
config.setOnAttributionChangedListener(this);
Adjust.onCreate(config);

The listener function will be called after the SDK receives the final attribution data. Within the listener function you have access to the attribution parameter. Here is a quick summary of its properties:

String trackerToken the tracker token of the current install.
String trackerName the tracker name of the current install.
String network the network grouping level of the current install.
String campaign the campaign grouping level of the current install.
String adgroup the ad group grouping level of the current install.
String creative the creative grouping level of the current install.
String clickLabel the click label of the current install.

Session and event callbacks

You can register a listener to be notified when events or sessions are tracked. There are four listeners: one for tracking successful events, one for tracking failed events, one for tracking successful sessions and one for tracking failed sessions. You can add any number of listeners after creating the AdjustConfig object:

AdjustConfig config = new AdjustConfig(this, appToken, environment);

// Set event success tracking delegate.
config.setOnEventTrackingSucceededListener(new OnEventTrackingSucceededListener() {
    @Override
    public void onFinishedEventTrackingSucceeded(AdjustEventSuccess eventSuccessResponseData) {
        // ...
    }
});

// Set event failure tracking delegate.
config.setOnEventTrackingFailedListener(new OnEventTrackingFailedListener() {
    @Override
    public void onFinishedEventTrackingFailed(AdjustEventFailure eventFailureResponseData) {
        // ...
    }
});

// Set session success tracking delegate.
config.setOnSessionTrackingSucceededListener(new OnSessionTrackingSucceededListener() {
    @Override
    public void onFinishedSessionTrackingSucceeded(AdjustSessionSuccess sessionSuccessResponseData) {
        // ...
    }
});

// Set session failure tracking delegate.
config.setOnSessionTrackingFailedListener(new OnSessionTrackingFailedListener() {
    @Override
    public void onFinishedSessionTrackingFailed(AdjustSessionFailure sessionFailureResponseData) {
        // ...
    }
});

Adjust.onCreate(config);

The listener function will be called after the SDK tries to send a package to the server. Within the listener function you have access to a response data object specifically for the listener. Here is a quick summary of the success session response data object fields:

String message the message from the server or the error logged by the SDK.
String timestamp timestamp from the server.
String adid a unique device identifier provided by adjust.
JSONObject jsonResponse the JSON object with the reponse from the server.

Both event response data objects contain:

String eventToken the event token, if the package tracked was an event.

And both event and session failed objects also contain:

boolean willRetry indicates that will be an attempt to resend the package at a later time.

Disable tracking

You can disable the adjust SDK from tracking any activities of the current device by calling setEnabled with parameter false. This setting is remembered between sessions.

Adjust.setEnabled(false);

You can check if the adjust SDK is currently enabled by calling the function isEnabled. It is always possible to activatе the adjust SDK by invoking setEnabled with the enabled parameter as true.

Offline mode

You can put the adjust SDK in offline mode to suspend transmission to our servers, while retaining tracked data to be sent later. While in offline mode, all information is saved in a file, so be careful not to trigger too many events while in offline mode.

You can activate offline mode by calling setOfflineMode with the parameter true.

Adjust.setOfflineMode(true);

Conversely, you can deactivate offline mode by calling setOfflineMode with false. When the adjust SDK is put back in online mode, all saved information is sent to our servers with the correct time information.

Unlike disabling tracking, this setting is not remembered between sessions. This means that the SDK is in online mode whenever it is started, even if the app was terminated in offline mode.

Event buffering

If your app makes heavy use of event tracking, you might want to delay some HTTP requests in order to send them in one batch every minute. You can enable event buffering with your AdjustConfig instance:

AdjustConfig config = new AdjustConfig(this, appToken, environment);

config.setEventBufferingEnabled(true);

Adjust.onCreate(config);

Background tracking

The default behaviour of the adjust SDK is to pause sending HTTP requests while the app is in the background. You can change this in your AdjustConfig instance:

AdjustConfig config = new AdjustConfig(this, appToken, environment);

config.setSendInBackground(true);

Adjust.onCreate(config);

Device IDs

Certain services (such as Google Analytics) require you to coordinate Device and Client IDs in order to prevent duplicate reporting.

If you need to obtain the Google Advertising ID, there is a restriction that only allows it to be read in a background thread. If you call the function getGoogleAdId with the context and a OnDeviceIdsRead instance, it will work in any situation:

Adjust.getGoogleAdId(this, new OnDeviceIdsRead() {
    @Override
    public void onGoogleAdIdRead(String googleAdId) {
        // ...
    }
});

Inside the method onGoogleAdIdRead of the OnDeviceIdsRead instance, you will have access to Google Advertising ID as the variable googleAdId.

Push token

To send us the push notification token, add the following call to Adjust once you have obtained your token or when ever it's value is changed:

Adjust.setPushToken(pushNotificationsToken);

Pre-installed trackers

If you want to use the Adjust SDK to recognize users that found your app pre-installed on their device, follow these steps.

Create a new tracker in your [dashboard].
Open your app delegate and add set the default tracker of your AdjustConfig:

AdjustConfig config = new AdjustConfig(this, appToken, environment);
config.setDefaultTracker("{TrackerToken}");
Adjust.onCreate(config);

Replace {TrackerToken} with the tracker token you created in step 2. Please note that the dashboard displays a tracker URL (including http://app.adjust.com/). In your source code, you should specify only the six-character token and not the entire URL.

Build and run your app. You should see a line like the following in LogCat:
```
Default tracker: 'abc123'
```

Deep linking

If you are using the adjust tracker URL with an option to deep link into your app from the URL, there is the possibility to get info about the deep link URL and its content. Hitting the URL can happen when the user has your app already installed (standard deep linking scenario) or if they don't have the app on their device (deferred deep linking scenario). In the standard deep linking scenario, Android platform natively offers the possibility for you to get the info about the deep link content. Deferred deep linking scenario is something which Android platform doesn't support out of box and for this case, the adjust SDK will offer you the mechanism to get the info about the deep link content.

Standard deep linking scenario

If a user has your app installed and you want it to launch after hitting an adjust tracker URL with the deep_link parameter in it, you need enable deep linking in your app. This is being done by choosing a desired unique scheme name and assigning it to the Activity which you want to launch once the app opens after the user clicked on the link. This is set in the AndroidManifest.xml. You need to add the intent-filter section to your desired Activity definition in the manifest file and assign android:scheme property value with the desired scheme name:

<activity
    android:name=".MainActivity"
    android:configChanges="orientation|keyboardHidden"
    android:label="@string/app_name"
    android:screenOrientation="portrait">

    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>

    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="adjustExample" />
    </intent-filter>
</activity>

With this being set, you need to use the assigned scheme name in the adjust tracker URL's deep_link parameter if you want your app to launch once the tracker URL is clicked. A tracker URL without any information added to the deep link can be built to look something like this:

https://app.adjust.com/abc123?deep_link=adjustExample%3A%2F%2F

Please, have in mind that the deep_link parameter value in the URL must be URL encoded.

After clicking this tracker URL, and with the app set as described above, your app will launch along with the MainActivity intent. Inside the MainActivity class, you will automatically be provided with the information about the deep_link parameter content. Once this content is delivered to you, it will not be encoded, although it was encoded in the URL.

Depending on the android:launchMode setting of your Activity in the AndroidManifest.xml file, information about the deep_link parameter content will be delivered to the appropriate place in the Activity file. For more information about the possible values of the android:launchMode property, check [the official Android documentation][android-launch-modes].

There are two possible places in which information about the deep link content will be delivered to your desired Activity via Intent object - either in the Activity's onCreate or onNewIntent method. After the app has launched and one of these methods is triggered, you will be able to get the actual deeplink passed in the deep_link parameter in the click URL. You can then use this information to do some additional logic in your app.

You can extract the deep link content from these two methods like this:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Intent intent = getIntent();
    Uri data = intent.getData();

    // data.toString() -> This is your deep_link parameter value.
}

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);

    Uri data = intent.getData();

    // data.toString() -> This is your deep_link parameter value.
}

Deferred deep linking scenario

Deferred deep linking scenario happens when a user clicks on the adjust tracker URL with the deep_link parameter in it, but does not have the app installed on the device at the moment of click. After that, the user will get redirected to the Play Store to download and install your app. After opening it for the first time, the content of the deep_link parameter will be delivered to the app.

In order to get info about the deep_link parameter content in a deferred deep linking scenario, you should set a listener method on the AdjustConfig object. This will get triggered once the adjust SDK gets the info about the deep link content from the backend.

AdjustConfig config = new AdjustConfig(this, appToken, environment);

// Evaluate the deeplink to be launched.
config.setOnDeeplinkResponseListener(new OnDeeplinkResponseListener() {
    @Override
    public boolean launchReceivedDeeplink(Uri deeplink) {
        // ...
        if (shouldAdjustSdkLaunchTheDeeplink(deeplink)) {
            return true;
        } else {
            return false;
        }
    }
});

Adjust.onCreate(config);

Once the adjust SDK receives the info about the deep link content from the backend, it will deliver you the info about its content in this listener and expect the boolean return value from you. This return value represents your decision on whether the adjust SDK should launch the Activity to which you have assigned the scheme name from the deep link (like in the standard deep linking scenario) or not.

If you return true, we will launch it and the exact same scenario which is described in the Standard deep linking scenario chapter will happen. If you do not want the SDK to launch the Activity, you can return false from this listener and based on the deep link content decide on your own what to do next in your app.

Reattribution via deep links

Adjust enables you to run re-engagement campaigns with usage of deep links. For more information on how to do that, please check our [official docs][reattribution-with-deeplinks].

If you are using this feature, in order for your user to be properly reattributed, you need to make one additional call to the adjust SDK in your app.

Once you have received deep link content information in your app, add a call to Adjust.appWillOpenUrl method. By making this call, the adjust SDK will try to find if there is any new attribution info inside of the deep link and if any, it will be sent to the adjust backend. If your user should be reattributed due to a click on the adjust tracker URL with deep link content in it, you will see the attribution callback in your app being triggered with new attribution info for this user.

The call to Adjust.appWillOpenUrl should be done like this:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Intent intent = getIntent();
    Uri data = intent.getData();

    Adjust.appWillOpenUrl(data);
}

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);

    Uri data = intent.getData();

    Adjust.appWillOpenUrl(data);
}

Troubleshooting

I'm seeing the "Session failed (Ignoring too frequent session. ...)" error.

This error typically occurs when testing installs. Uninstalling and reinstalling the app is not enough to trigger a new install. The servers will determine that the SDK has lost its locally aggregated session data and ignore the erroneous message, given the information available on the servers about the device.

This behaviour can be cumbersome during tests, but is necessary in order to have the sandbox behaviour match production as much as possible.

You can reset the session data of the device in our servers. Check the error message in the logs:

Session failed (Ignoring too frequent session. Last session: YYYY-MM-DDTHH:mm:ss, this session: YYYY-MM-DDTHH:mm:ss, interval: XXs, min interval: 20m) (app_token: {yourAppToken}, adid: {adidValue})

With the {yourAppToken} and {adidValue}/{gps_adidValue}/{androidIDValue} values filled in below, open one of the following links:

http://app.adjust.com/forget_device?app_token={yourAppToken}&adid={adidValue}

http://app.adjust.com/forget_device?app_token={yourAppToken}&gps_adid={gps_adidValue}

http://app.adjust.com/forget_device?app_token={yourAppToken}&android_id={androidIDValue}

When the device is forgotten, the link just returns Forgot device. If the device was already forgotten or the values were incorrect, the link returns Device not found.

Is my broadcast receiver capturing the install referrer?

If you followed the instructions in the guide, the broadcast receiver should be configured to send the install referrer to our SDK and to our servers.

You can test this by triggering a test install referrer manually. Replace com.your.appid with your app ID and run the following command with the adb tool that comes with Android Studio:

adb shell am broadcast -a com.android.vending.INSTALL_REFERRER -n com.your.appid/com.adjust.sdk.AdjustReferrerReceiver --es "referrer" "adjust_reftag%3Dabc1234%26tracking_id%3D123456789%26utm_source%3Dnetwork%26utm_medium%3Dbanner%26utm_campaign%3Dcampaign"

If you are already using a different broadcast receiver for the INSTALL_REFERRER intent and followed this [guide][referrer], replace com.adjust.sdk.AdjustReferrerReceiver with your broadcast receiver.

You can also remove the -n com.your.appid/com.adjust.sdk.AdjustReferrerReceiver parameter so that all the apps in the device will receive the INSTALL_REFERRER intent.

If you set the log level to verbose, you should be able to see the log from reading the referrer:

V/Adjust: Reading query string (adjust_reftag=abc1234&tracking_id=123456789&utm_source=network&utm_medium=banner&utm_campaign=campaign) from reftag
```

And a click package added to the SDK's package handler:

```
V/Adjust: Path:      /sdk_click
    ClientSdk: android4.6.0
    Parameters:
      app_token        abc123abc123
      click_time       yyyy-MM-dd'T'HH:mm:ss.SSS'Z'Z
      created_at       yyyy-MM-dd'T'HH:mm:ss.SSS'Z'Z
      environment      sandbox
      gps_adid         12345678-0abc-de12-3456-7890abcdef12
      needs_attribution_data 1
      referrer         adjust_reftag=abc1234&tracking_id=123456789&utm_source=network&utm_medium=banner&utm_campaign=campaign
      reftag           abc1234
      source           reftag
      tracking_enabled 1
```

If you perform this test before launching the app, you won't see the package being sent. The package will be sent once the
app is launched.

### <a id="ts-event-at-launch">Can I trigger an event at application launch?

Not how you might intuitively think. The `onCreate` method on the global `Application` class is called not only at
application launch, but also when a system or application event is captured by the app.

Our SDK is prepared for initialization at this time, but not actually started. This will only happen when an activity is
started, i.e., when a user actually launches the app.

That's why triggering an event at this time will not do what you would expect. Such calls will start the adjust SDK and
send the events, even when the app was not launched by the user - at a time that depends on external factors of the app.

Triggering events at application launch will thus result in inaccuracies in the number of installs and sessions tracked.

If you want to trigger an event after the install, use the [attribution changed listener](#attribution_changed_listener).

If you want to trigger an event when the app is launched, use the `onCreate` method of the Activity which is started.

[dashboard]:                      http://adjust.com
[adjust.com]:                     http://adjust.com

[maven]:                          http://maven.org
[example]:                        https://github.com/adjust/android_sdk/tree/master/Adjust/example
[releases]:                       https://github.com/adjust/adjust_android_sdk/releases
[referrer]:                       doc/english/referrer.md
[google_ad_id]:                   https://support.google.com/googleplay/android-developer/answer/6048248?hl=en
[event-tracking]:                 https://docs.adjust.com/en/event-tracking
[callbacks-guide]:                https://docs.adjust.com/en/callbacks
[application_name]:               http://developer.android.com/guide/topics/manifest/application-element.html#nm
[special-partners]:               https://docs.adjust.com/en/special-partners
[attribution-data]:               https://github.com/adjust/sdks/blob/master/doc/attribution-data.md
[android-dashboard]:              http://developer.android.com/about/dashboards/index.html
[currency-conversion]:            https://docs.adjust.com/en/event-tracking/#tracking-purchases-in-different-currencies
[android_application]:            http://developer.android.com/reference/android/app/Application.html
[android-launch-modes]:           https://developer.android.com/guide/topics/manifest/activity-element.html
[google_play_services]:           http://developer.android.com/google/play-services/setup.html
[activity_resume_pause]:          doc/activity_resume_pause.md
[reattribution-with-deeplinks]:   https://docs.adjust.com/en/deeplinking/#manually-appending-attribution-data-to-a-deep-link
[android-purchase-verification]:  https://github.com/adjust/android_purchase_sdk

[activity]:                     https://raw.github.com/adjust/sdks/master/Resources/android/v4/14_activity.png
[proguard]:                     https://raw.github.com/adjust/sdks/master/Resources/android/v4/08_proguard_new.png
[receiver]:                     https://raw.github.com/adjust/sdks/master/Resources/android/v4/09_receiver.png
[gradle_gps]:                   https://raw.github.com/adjust/sdks/master/Resources/android/v4/05_gradle_gps.png
[log_message]:                  https://raw.github.com/adjust/sdks/master/Resources/android/v4/15_log_message.png
[manifest_gps]:                 https://raw.github.com/adjust/sdks/master/Resources/android/v4/06_manifest_gps.png
[gradle_adjust]:                https://raw.github.com/adjust/sdks/master/Resources/android/v4/04_gradle_adjust.png
[import_module]:                https://raw.github.com/adjust/sdks/master/Resources/android/v4/01_import_module.png
[select_module]:                https://raw.github.com/adjust/sdks/master/Resources/android/v4/02_select_module.png
[imported_module]:              https://raw.github.com/adjust/sdks/master/Resources/android/v4/03_imported_module.png
[application_class]:            https://raw.github.com/adjust/sdks/master/Resources/android/v4/11_application_class.png
[application_config]:           https://raw.github.com/adjust/sdks/master/Resources/android/v4/13_application_config.png
[manifest_permissions]:         https://raw.github.com/adjust/sdks/master/Resources/android/v4/07_manifest_permissions.png
[manifest_application]:         https://raw.github.com/adjust/sdks/master/Resources/android/v4/12_manifest_application.png
[activity_lifecycle_class]:     https://raw.github.com/adjust/sdks/master/Resources/android/v4/16_activity_lifecycle_class.png
[activity_lifecycle_methods]:   https://raw.github.com/adjust/sdks/master/Resources/android/v4/17_activity_lifecycle_methods.png
[activity_lifecycle_register]:  https://raw.github.com/adjust/sdks/master/Resources/android/v4/18_activity_lifecycle_register.png

## <a id="license"></a>License

The adjust SDK is licensed under the MIT License.

Copyright (c) 2012-2016 adjust GmbH,
http://www.adjust.com

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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