无法查询存储在Firebase动态/深层链接中的参数

我正在手动创建Firebase动态/深层链接,如下所示:

Uri BASE_URI = Uri.parse("http://example.com/");
String packageName = getBaseContext().getPackageName();
Uri APP_URI = BASE_URI.buildUpon().path(requestID.getText().toString().trim()+"%3DrequestID="+requestID.getText().toString().trim()+"%3Dextra1="+extra1.getText().toString().trim()+"%3Dextra2="+extra2.getText().toString().trim()).build();
String encodedUri = URLEncoder.encode(APP_URI.toString(), "UTF-8");
Uri deepLink = Uri.parse("https://appcode.app.goo.gl/?link="+encodedUri+"&apn="+packageName+"&amv="+16+"&ad="+0);

然后我与另一个用户分享它,他正在接收这个链接:http://example.com/-KcP1YHgGsg3tVYybX8b%253DrequestID%3D-KcP1YHgGsg3tVYybX8b%253Dextra1%3Dtext1%253Dextra2%3D3%253Dtext2.

然后使用以下代码我试图从这里获取查询参数(链接中的额外参数):

    boolean autoLaunchDeepLink = false;
            AppInvite.AppInviteApi.getInvitation(mGoogleApiClient, this, autoLaunchDeepLink)
                    .setResultCallback(
                            new ResultCallback() {
                                @Override
                                public void onResult(@NonNull AppInviteInvitationResult result) {
                                    if (result.getStatus().isSuccess()) {
                                        // Extract deep link from Intent
                                        Intent intent = result.getInvitationIntent();
                                        final String deepLink = AppInviteReferral.getDeepLink(intent);
                                        Log.d("deepLinkMainActivity", deepLink);

                                        Uri uri = Uri.parse(deepLink);
                                        String requestId = uri.getQueryParameter("requestID");
                                        Log.d("requestId123", requestId);
                                } else {
                                    Log.d("getInvitation", "getInvitation: no deep link found.");
                                }
                            }
                        });

但应用程序正在崩溃显示:java.lang.NullPointerException: println needs a message因为uri.getQueryParameter("requestID");正在返回null.

我做错了什么,如何从中获取查询参数deep-link？

请告诉我.

这是我的网址
Uri APP_URI = BASE_URI.buildUpon().path(requestID.getText().toString().trim()+"%3DrequestID="+requestID.getText().toString().trim()+"%3Dextra1="+extra1.getText().toString().trim()+"%3Dextra2="+extra2.getText().toString().trim()).build();

如果您解码此Url,您将收到类似的内容

http://www.airbanq.com?name=45=extra1=45=extra2=12=extra3=455

该值%3D等于a =.要在查询字符串中连接值,您需要使用此&,也许您可​​以尝试避免编码和解码,然后重试.我在另一个帖子中建议了这个选项,因为对于我来说,使用旧版本的FIrebase工作正常.

这是你的null错误背后的主要原因,基本上你试图从中获取一个查询字符串 http://www.airbanq.com?name=45=extra1=45=extra2=12=extra3=455

创建一个这样的链接 http://www.airbanq.com?name=45&extra1=45&extra2=12&extra3=455 ,让我知道.使用您的代码进行此更改后,这将正常工作.

更新1
我将与您分享一些代码,希望这可以解决您的问题.

此代码基于您现在拥有的内容
第一部分是创建URL并添加一些参数,如您所见

Uri BASE_URI = Uri.parse("http://example.com/");

Uri APP_URI = BASE_URI.buildUpon().appendQueryParameter("requestID", "200").
                    appendQueryParameter("extra1", "value").
                    appendQueryParameter("extra2", "value").build();


String encodedUri = null;
try {
   encodedUri = URLEncoder.encode(APP_URI.toString(), "UTF-8");
} catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
Uri deepLink = Uri.parse("https://app.app.goo.gl/?link="+encodedUri+"&apn=com.xx.xx.dev");

最后一部分只是为了接收深层链接并读取值

AppInvite.AppInviteApi.getInvitation(mGoogleApiClient, this, autoLaunchDeepLink)
                .setResultCallback(
                        new ResultCallback() {
                            @Override
                            public void onResult(AppInviteInvitationResult result) {
                                Log.d(TAG, "getInvitation:onResult:" + result.getStatus());
                                if (result.getStatus().isSuccess()) {
                                    // Extract information from the intent
                                    Intent intent = result.getInvitationIntent();
                                    String deepLink = AppInviteReferral.getDeepLink(intent);
                                    String invitatiOnId= AppInviteReferral.getInvitationId(intent);

                                    try {
                                        deepLink = URLDecoder.decode(deepLink, "UTF-8");
                                    } catch (UnsupportedEncodingException e) {
                                        e.printStackTrace();
                                    }
                                    Uri uri = Uri.parse(deepLink);
                                    String requestId = uri.getQueryParameter("requestID");
                                    String requestId2 = uri.getQueryParameter("extra2");

                                    // Because autoLaunchDeepLink = true we don't have to do anything
                                    // here, but we could set that to false and manually choose
                                    // an Activity to launch to handle the deep link here.
                                    // ...
                                }
                            }
                        });

最后这是明显的

希望这可以解决您的问题