PendingDynamicLinkData为空

Question

我正在开发一个可以共享并获得奖励的应用程序，因此我使用了动态链接的概念，以便将邀请者的信息存储在该链接中，并在以后得到奖励。但PendingDynamicLinkData在引用后安装该应用程序时返回null。

MainActivity

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

    GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestEmail()
            .build();

    googleSignInClient = GoogleSignIn.getClient(this, gso);

    checkInvitations();
}

void checkInvitations() {

    FirebaseDynamicLinks.getInstance().getDynamicLink(getIntent())
            .addOnSuccessListener(this, new OnSuccessListener<PendingDynamicLinkData>() {
                @Override
                public void onSuccess(PendingDynamicLinkData data) {
                    if (data == null) {
                        Diagnostics.e(this, "No data").append(activity);
                        return;
                    }

                    // Get the deep link
                    Uri deepLink = data.getLink();

                    // Extract invite
                    FirebaseAppInvite invite = FirebaseAppInvite.getInvitation(data);
                    if (invite != null) {
                        String invitationId = invite.getInvitationId();
                        Diagnostics.i(this, "Send invitationId to server. InvitationId = " + invitationId).append(activity);
                    }

                    Diagnostics.i(this, "deepLink:" + deepLink).append(activity);

                    if (deepLink != null) {
                        Intent intent = new Intent(Intent.ACTION_VIEW);
                        intent.setPackage(getPackageName());
                        intent.setData(deepLink);

                        startActivity(intent);
                    }
                }
            })
            .addOnFailureListener(this, new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "getDynamicLink:onFailure", e);
                }
            });
}

MainActivity中“邀请”按钮上的onClick事件

void onInviteClicked() {

    JSONObject json = jsonObjectCreator.createJSONObjectForSendingUserId(getUserId());
    String jsonString = json.toString();

    getterReferenceId = new GetFromServer(this, GET_REFERENCE_URL, jsonString);
    getterReferenceId.execute();
}

GetFromServer类

static class GetFromServer extends AsyncTask<Void, Void, JSONObject> {

    private String mUrl;
    private String mSpotsReportJson;
    private WeakReference<MainActivity> activityReference;

    GetFromServer(MainActivity context, String url, String spotsReportJson) {
        activityReference = new WeakReference<>(context);
        mUrl = url;
        mSpotsReportJson = spotsReportJson;
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();

        MainActivity activity = activityReference.get();
        if (activity == null || activity.isFinishing()) return;
    }

    @Override
    protected JSONObject doInBackground(Void... voids) {

        StringBuilder data = new StringBuilder();
        HttpURLConnection httpURLConnection = null;
        MainActivity activity = activityReference.get();

        // get JSON
        try {
            httpURLConnection = (HttpURLConnection) new URL(mUrl).openConnection();
            httpURLConnection.setRequestMethod("POST");
            httpURLConnection.setRequestProperty("Content-Type", "application/json");
            httpURLConnection.setDoOutput(true);

            if (isCancelled()) return null;

            DataOutputStream wr = new DataOutputStream(httpURLConnection.getOutputStream());
            wr.writeBytes(mSpotsReportJson);
            wr.flush();
            wr.close();

            int response = httpURLConnection.getResponseCode();

            if (response == HttpURLConnection.HTTP_OK || response == HttpURLConnection.HTTP_CREATED) {
                // Success
                InputStream in = httpURLConnection.getInputStream();
                InputStreamReader inputStreamReader = new InputStreamReader(in);

                int inputStreamData = inputStreamReader.read();
                while (inputStreamData != -1) {
                    char current = (char) inputStreamData;
                    inputStreamData = inputStreamReader.read();
                    data.append(current);
                }
            }
        } catch (Exception e) {
            StringWriter sw = new StringWriter();
            e.printStackTrace(new PrintWriter(sw));
            String exceptionDetails = sw.toString();
            Diagnostics.e(this, "Exception caught: " + exceptionDetails).append(activity);
        } finally {
            if (httpURLConnection != null) {
                httpURLConnection.disconnect();
            }
        }

        try {
            JSONObject json = new JSONObject(data.toString());
            return json;
        } catch (JSONException e) {
            StringWriter sw = new StringWriter();
            e.printStackTrace(new PrintWriter(sw));
            String exceptionDetails = sw.toString();
            Diagnostics.e(this, "Exception caught: " + exceptionDetails).append(activity);
        }
        return null;
    }

    @Override
    protected void onPostExecute(JSONObject json) {
        super.onPostExecute(json);

                String referenceId = getReferenceIdFromJson(json);

                if (referenceId != null) {
                    // create dynamic link
                    String link = "https://www.hu.info/_invites/" + referenceId;
                    // create Firebase link
                        FirebaseDynamicLinks.getInstance().createDynamicLink()
                                .setLink(Uri.parse(link))
                                .setDomainUriPrefix("https://hu.page.link")
                                .setAndroidParameters(new DynamicLink.AndroidParameters.Builder().build())
                                .buildShortDynamicLink()
                                .addOnCompleteListener(activity, new OnCompleteListener<ShortDynamicLink>() {
                                    @Override
                                    public void onComplete(@NonNull Task<ShortDynamicLink> task) {
                                        if (task.isSuccessful()) {
                                            // Short link created
                                            ShortDynamicLink shortDynamicLink = task.getResult();
                                            if (shortDynamicLink != null) {
                                                Uri shortLink = shortDynamicLink.getShortLink();

                                                // send reference
                                                Intent intent = new AppInviteInvitation.IntentBuilder(activity.getString(R.string.invitation_title))
                                                        .setMessage(activity.getString(R.string.invitation_message))
                                                        .setDeepLink(shortLink)
                                                        .setCallToActionText(activity.getString(R.string.invitation_cta))
                                                        .build();                                                            activity.startActivityForResult(intent, RC_INVITE);
                                            } else
                                                Diagnostics.e(this, "ShortDynamicLink is null");
                                        } else
                                            Diagnostics.e(this, "link was not created");
                                    }
                                });
                }
                break;
    }
}

清单

<activity
    android:name=".MainActivity"
    android:screenOrientation="portrait" />

<activity android:name=".InfoActivity">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <action android:name="android.intent.action.MAIN" />

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

<activity android:name=".InvitationActivity">
    <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:host="hu.page.link" android:scheme="http"/>
        <data android:host="hu.page.link" android:scheme="https"/>
    </intent-filter>
</activity>

Answer 1

您可能要检查启动意图，目前看来您正在启动InfoActivity，而安装应用程序后的动态链接将进入InvitationActivity，但是您的链接检查代码位于MainActivity中。