Branch Analytics and Referral Tracking for Custom APK files

HomeActivity.java

    @Override
    public void onStart() {
        super.onStart();
        Branch branch = Branch.getInstance();

        branch.initSession(new Branch.BranchReferralInitListener() {
            @Override
            public void onInitFinished(JSONObject referringParams, BranchError error) {
                if (error == null) {
                    // params are the deep linked params associated with the link that the user clicked -> was re-directed to this app
                    // params will be empty if no data found
                    // ... insert custom logic here ...
//                    Log.i("com.duggout", "Branch Params: " + referringParams.toString());
                    try {
                        if (referringParams.has("+clicked_branch_link") &&
                                referringParams.getBoolean("+clicked_branch_link") &&
                                referringParams.has("u")) {
                            SharedPreferences getPrefs = PreferenceManager
                                    .getDefaultSharedPreferences(HomeActivity.this);

                            SharedPreferences.Editor e = getPrefs.edit();
                            e.putInt(LoginUseCase.REFERRED_BY, referringParams.getInt("u"));
                            e.apply();

                            mTracker.setReferrer(String.valueOf(referringParams.getInt("u")));
                            mTracker.send(new HitBuilders.EventBuilder("Referral", "Started").build());
                            if (referringParams.has("~referring_link") && !referringParams.getString("~referring_link").isEmpty()) {
                                mTracker.send(new HitBuilders.ScreenViewBuilder().setCampaignParamsFromUrl(referringParams.getString("~referring_link")).build());
                            }
                        }
                    } catch (JSONException e) {

                    }
                } else {
                    Log.i("com.duggout", error.getMessage());
                }
            }
        }, this.getIntent().getData(), this);
    }