在Android中，如果已经在设备中安装了Facebook，为什么Facebook注册不起作用? [英] In Android, why is Facebook signup not working if Facebook installed in the device already?

问题描述

我尝试在我的应用程序中使用Facebook，这在未安装Facebook应用程序的设备上正常运行.但是在设备上已经安装了Facebook的情况下，这无法进行会话.

I have tried to use Facebook in my application, this works fine on device that doesn't have Facebook app installed. But this fails to give the session while there is Facebook already installed on the device.

public void facebookSignIn(CallbackContext callContext){
    try {
        isFacebookLogin = true;
        getActivity().runOnUiThread(new Runnable() {
            public void run() {
                mConnectionProgressDialog.show();               }
        });
        this.callbackContext = callContext;
        Session.openActiveSession(this, true, new Session.StatusCallback() {
            // callback when session changes state
            @Override
            public void call(Session session, SessionState state, Exception exception) {
                Log.d("facebook","session open");
                if (session.isOpened()) {
                    // make request to the /me API
                    Request.newMeRequest(session, new Request.GraphUserCallback() {
                        // callback after Graph API response with user object
                        @Override
                        public void onCompleted(GraphUser user, Response response) {
                            if (user != null) {
                                String userID = user.getId();
                                callbackContext.success(userID);
                                Toast.makeText(MDLIVEMain.this, user.getName() + " is connected.", Toast.LENGTH_LONG).show();
                            } else {
                                // TODO: handle exception
                                callbackContext.error(MDLiveLocalizationSystem.localizedStringForKey("nat_authen_failure"));
                            }
                            getActivity().runOnUiThread(new Runnable() {
                                public void run() {
                                    mConnectionProgressDialog.dismiss();
                                }
                            });
                        }

                    }).executeAsync();
                }
            }
        });
    }catch (Exception e){
        e.printStackTrace();
        callbackContext.error(MDLiveLocalizationSystem.localizedStringForKey("nat_authen_failure"));
        GATrackingExceptions.trackExceptions(e.getLocalizedMessage(), MDLIVEMain.this);
        getActivity().runOnUiThread(new Runnable() {
            public void run() {
                mConnectionProgressDialog.dismiss();
            }
        });
    }
}

这是onactivityResult代码

Here is onactivityResult code

  @Override
protected void onActivityResult(int requestCode, int responseCode, Intent intent) {
    try {
        CordovaPlugin callback = this.activityResultCallbacks;
        if (callback != null) {
            callback.onActivityResult(requestCode, responseCode, intent);
        }
        Log.d("isFacebookLogin",isFacebookLogin+"");
        if(isFacebookLogin){
            try {
                isFacebookLogin = false;
                Session.getActiveSession().onActivityResult(this, requestCode, responseCode, intent);
            }catch (Exception e){
                e.printStackTrace();
            }
        }else {
            if (requestCode == REQUEST_CODE_RESOLVE_ERR && responseCode == RESULT_OK) {
                mConnectionResult = null;
                mPlusClient.connect();
            }

            getActivity().runOnUiThread(new Runnable() {
                public void run() {
                    mConnectionProgressDialog.dismiss();
                }
            });

            if (requestCode == PASSCODE_RESULT_PAGE) {
                if (responseCode == RESULT_OK) {
                    activityVisible = true;
                    this.callbackContext.success(intent.getExtras().getString("passcode_pin"));
                } else {
                    this.callbackContext.success(intent.getExtras().getString("passcode_pin"));
                    isFromPasscodePage = true;
                }
            }
        }
    }catch (Exception e){
        e.printStackTrace();
    }
}

推荐答案

在这里，我已经针对这种类型的(针对fb的哈希)问题回答了:

I have answered for this type of (Hash for fb) issue here :

Facebook登录和贴墙"仅适用于第一次

注意:Fb给出了无效哈希的问题bcz，因为您必须生成一个有效哈希.

Note: Fb gives issues bcz of not valid Hash, for that you have to generate a valid hash.

这篇关于在Android中，如果已经在设备中安装了Facebook，为什么Facebook注册不起作用?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！