Android中使用Kotlin实现Google、FaceBook、Twitter登录的封装

最近由于项目做国际化,所以需要接入Google、FaceBook、Twitter等各种第三方登录的Api,于是查找官网资料,申请各种key和密钥,最后成功完成了这三个第三方登录Api的功能,但是由于很多地方需要调用,前期做得很粗糙,发现调用很麻烦,于是做了一次封装,总结一下,关于资料的申请这里就不说了,本博客采用的是Kotlin代码,不熟悉Kotlin的同学可以学习一下,直接上封装的代码:

一、接入Google、Facebook、Twitter之前需要安装Google服务,所以首先需要判断用户是否安装Google服务插件,这里说特别说明一下,一定要安装官网的正版Google服务插件,要不然会出现各种问题,这里就不展开了.检测用户是否安装Google服务的方法如下:

/**

* 检查用户是否安装Google Play 服务

*/

open fun onCheckGooglePlayService(activity:Activity,code:Int){

// 验证是否已在此设备上安装并启用Google Play服务,以及此设备上安装的旧版本是否为此客户端所需的版本

GoogleApiAvailability.getInstance().makeGooglePlayServicesAvailable(activity)

/**

* 通过isUserResolvableError来确定是否可以通过用户操作解决错误

*/

if (GoogleApiAvailability.getInstance().isUserResolvableError(code)) {

    GoogleApiAvailability.getInstance().getErrorDialog(activity, code, 200).show()

}

}

fun checkGooglePlayServiceExist(activity: Activity): Int {

    return GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(activity)

}

二.Google登录工具类的封装:

/**

* @author: njb

* @date: 2021/5/8 14:37

* @desc: Google登录工具类

*/

open class GoogleLoginUtils(private val activity: Activity, var listener: GoogleSignListener) {

    var requestCode = 10

    private var mGoogleSignInClient: GoogleSignInClient? = null

    private var googleSignListener: GoogleSignListener? = null

    init {

        //初始化谷歌登录服务

        val gso = GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)

                .requestEmail()

                .build()

        mGoogleSignInClient = GoogleSignIn.getClient(activity, gso)

    }

    /**

    * 登录

    */

    open fun signIn() {

        val signInIntent: Intent = mGoogleSignInClient!!.signInIntent

        activity.startActivityForResult(signInIntent, requestCode)

    }

    /**

    * 退出登录

    */

    open fun signOut() {

    }

    fun handleSignInResult(completedTask: Task) {

        try {

            val account: GoogleSignInAccount? = completedTask.getResult(ApiException::class.java)

            val status: Task = completedTask

            if (status.isSuccessful) {

                if (account != null) {

                    //ToastUtils.showShort(activity.getString(R.string.login_success))

                    googleSignListener?.googleLoginSuccess(account)

                    LogUtils.d("account" + account?.account)

                } else {

                    googleSignListener?.googleLoginFail(activity.getString(R.string.login_failed))

                }

            }

        } catch (e: ApiException) {

            LogUtils.d("signInResult:failed code=" + e.statusCode)

        }

    }

    open fun setGoogleSignListener(googleSignListener: GoogleSignListener?) {

        this.googleSignListener = googleSignListener

    }

    interface GoogleSignListener {

        fun googleLoginSuccess(account: GoogleSignInAccount)

        fun googleLoginFail(message: String?)

        fun googleLogoutSuccess()

        fun googleLogoutFail()

    }

    /**

    * 检查 Google Play 服务

    */

    open fun onCheckGooglePlayServices(activity: Activity, code: Int) {

        // 验证是否已在此设备上安装并启用Google Play服务,以及此设备上安装的旧版本是否为此客户端所需的版本

        GoogleApiAvailability.getInstance().makeGooglePlayServicesAvailable(activity)

        /**

        * 通过isUserResolvableError来确定是否可以通过用户操作解决错误

        */

        if (GoogleApiAvailability.getInstance().isUserResolvableError(code)) {

            GoogleApiAvailability.getInstance().getErrorDialog(activity, code, 200).show()

        }

    }

    fun checkGooglePlayServiceExist(activity: Activity): Int {

        return GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(activity)

    }

}

三、FaceBook登录工具类的封装:

/**

*@author: njb

*@date:  2021/5/8 14:26

*@desc:  FaceBook登录工具类

*/

open class FacebookLoginUtils(private val activity: Activity) {

    private var loginManager: LoginManager? = null

    private val permissions: List

    private var callbackManager: CallbackManager? = null

    private var requestSuccessCode = 2896

    private var requestCancelCode = 2897

    private var requestFailedCode = 2898

    private var mFaceBookLoginListener: FaceBookLoginListener? = null

    var infoBean: FaceLoginInfoBean? = null

    init {

        //初始化facebook登录服务

        callbackManager = CallbackManager.Factory.create()

        getLoginManager().registerCallback(callbackManager, object : FacebookCallback {

            override fun onSuccess(result: LoginResult?) {

                activity.setResult(requestSuccessCode)

                getLoginInfo(result?.accessToken)

            }

            override fun onCancel() {

                activity.setResult(requestCancelCode)

                mFaceBookLoginListener?.onLoginCancel(activity.getString(R.string.login_cancel))

            }

            override fun onError(error: FacebookException?) {

                activity.setResult(requestFailedCode)

                mFaceBookLoginListener?.onLoginFail(error?.message)

                LogUtils.d(error?.message)

            }

        })

        permissions = listOf("email", "user_likes", "user_status", "user_photos", "user_birthday", "public_profile", "user_friends");

    }

    /**

    * 登陆

    */

    fun login() {

        getLoginManager().logIn(activity, permissions)

    }

    /**

    * 退出登陆

    */

    fun loginOut() {

        var logout = activity.resources.getString(R.string.com_facebook_loginview_log_out_action)

        var cancel = activity.resources.getString(R.string.com_facebook_loginview_cancel_action)

        val message: String

        val profile: Profile = Profile.getCurrentProfile()

        message = if (profile?.name != null) {

            java.lang.String.format(

                    activity.resources.getString(

                            R.string.com_facebook_loginview_logged_in_as),

                    profile.name)

        } else {

            activity.resources.getString(

                    R.string.com_facebook_loginview_logged_in_using_facebook)

        }

        val builder: AlertDialog.Builder = AlertDialog.Builder(activity)

        builder.setMessage(message)

                .setCancelable(true)

                .setPositiveButton(logout) { _, _ ->

                    getLoginManager().logOut()

                }

                .setNegativeButton(cancel, null)

        builder.create().show()

    }

    /**

    * 获取登录信息

    * @param accessToken

    */

    private fun getLoginInfo(accessToken: AccessToken?) {

        var request = GraphRequest.newMeRequest(accessToken, object : GraphRequest.GraphJSONObjectCallback {

            override fun onCompleted(`object`: JSONObject?, response: GraphResponse?) {

                `object`?.run {

                    val id = optString("id") //比如:13813813888

                    val name = optString("name") //比如:Zhang San

                    val gender = optString("gender") //性别:比如 male (男)  female (女)

                    val email = optString("email") //邮箱:比如:[email protected]

                    //获取用户头像

                    val object_pic = optJSONObject("picture")

                    val object_data = object_pic.optJSONObject("data")

                    val photo = object_data.optString("url")

                    //获取地域信息

                    val locale = optString("locale") //zh_CN 代表中文简体

                    infoBean = FaceLoginInfoBean()

                    infoBean?.id = id

                    infoBean?.name = name

                    infoBean?.email = email

                    infoBean?.gender = gender

                    infoBean?.picture = object_pic.toString()

                    infoBean?.data = object_data.toString()

                    infoBean?.photo = photo

                    infoBean?.locale = locale

                    infoBean?.let { mFaceBookLoginListener?.onLoginSuccess(it) }

                }

            }

        })

        val parameters = Bundle()

        parameters.putString("fields", "id,name,link,gender,birthday,email,picture,locale,updated_time,timezone,age_range,first_name,last_name")

        request.parameters = parameters

        request.executeAsync()

    }

    fun getCallbackManager(): CallbackManager? {

        return callbackManager

    }

    /**

    * 获取loginMananger

    * @return

    */

    private fun getLoginManager(): LoginManager {

        if (loginManager == null) {

            loginManager = LoginManager.getInstance();

        }

        return loginManager!!

    }

    companion object {

        /**

        * 是否处在登陆状态

        */

        fun isLogin(): Boolean {

            val accessToken = AccessToken.getCurrentAccessToken()

            val isLoggedIn = accessToken != null && !accessToken.isExpired

            return isLogin()

        }

    }

    open fun setFaceBookLoginListener(faceBookLoginListener: FaceBookLoginListener?) {

        this.mFaceBookLoginListener = faceBookLoginListener

    }

    interface FaceBookLoginListener {

        fun onLoginSuccess(infoBean: FaceLoginInfoBean)

        fun onLoginCancel(message: String?)

        fun onLoginFail(message: String?)

        fun onLogoutSuccess()

        fun onLogoutFail()

    }

}

四、Twitter登录工具类的封装:

**

* @author: njb

* @date: 2021/5/14 10:08

* @desc: Twitter登录工具类

*/

class TwitterLoginUtils(activity: Activity) {

        private var activityRef: WeakReference? = null

        var callback: Callback? = null

    @Volatile

    var authClient: TwitterAuthClient? = null

    companion object {

        const val ERROR_MSG_NO_ACTIVITY = ("TwitterLoginButton requires an activity."

                + " Override getActivity to provide the activity for this button.")

    }

    init {

        activityRef = WeakReference(activity)

        TwitterCore.getInstance()

    }

    fun setOnLoginByTwitterClick(callback: Callback?) {

        this.callback = callback

        checkCallback(callback)

        checkActivity(activityRef?.get())

        twitterAuthClient!!.authorize(activityRef?.get(), callback)

    }

    private val twitterAuthClient: TwitterAuthClient?

        get() {

            if (authClient == null) {

                synchronized(TwitterLoginButton::class.java) {

                    if (authClient == null) {

                        authClient = TwitterAuthClient()

                    }

                }

            }

            return authClient

        }

    private fun checkCallback(callback: Callback<*>?) {

        if (callback == null) {

            CommonUtils.logOrThrowIllegalStateException(TwitterCore.TAG,

                    "Callback must not be null, did you call setCallback?")

        }

    }

    private fun checkActivity(activity: Activity?) {

        if (activity == null || activity.isFinishing) {

            CommonUtils.logOrThrowIllegalStateException(TwitterCore.TAG, ERROR_MSG_NO_ACTIVITY)

        }

    }

    /**

    * Call this method when [Activity]

    * is called to complete the authorization flow.

    *

    * @param requestCode the request code used for SSO

    * @param resultCode  the result code returned by the SSO activity

    * @param data        the result data returned by the SSO activity

    */

    fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {

        if (requestCode == twitterAuthClient!!.requestCode) {

            twitterAuthClient!!.onActivityResult(requestCode, resultCode, data)

        }

    }

}

 五、具体使用代码如下:

5.1------使用Google登录时需要先判断用户是否安装Google服务,

 5.2------使用具体步骤如下:

 a. 先声明工具类

private var mGoogleLogin: GoogleLoginUtils? = null

private var mFacebookLoginUtils: FacebookLoginUtils? = null

 b.Google和FaceBook工具类的初始化

private fun initGoogle() {

    mGoogleLogin = GoogleLoginUtils(this, this)

    mGoogleLogin?.setGoogleSignListener(this)

}

private fun initFaceBook() {

    mFacebookLoginUtils = FacebookLoginUtils(this)

    mFacebookLoginUtils?.setFaceBookLoginListener(this)

}

c.点击Google和FaceBook两个按钮分别调用不同的方法

R.id.iv_google -> {//先检查是否安装Google服务

    checkGoogleService()

}

R.id.iv_face_book -> {//检查是否安装FaceBook客户端

    if (!CheckApkExist.checkFacebookExist(this)) {

        ToastUtils.showShort(getString(com.jiaoday.base.R.string.please_install_face_book_first))

    } else {

        mFacebookLoginUtils?.login()

    }

}

private fun checkGoogleService() {

    val code = mGoogleLogin?.checkGooglePlayServiceExist(this)

    if (code == ConnectionResult.SUCCESS) {

        mGoogleLogin?.signIn()

    } else {

        code?.let { mGoogleLogin?.onCheckGooglePlayServices(this, it) }

    }

}

d.Google和FaceBook登录回调,在最开始继承一下登录回调监听方法:

 GoogleLoginUtils.GoogleSignListener, FacebookLoginUtils.FaceBookLoginListener

e.登录成功、失败、取消登录后的回调

override fun googleLoginSuccess(account: GoogleSignInAccount) {

    //google登录成功后返回的信息

    if (account.email != null) {

        thirdAccountLogin(account.email.toString(), account.email.toString(), "4")

    }

}

override fun googleLoginFail(message: String?) {

    ToastUtils.showShort(message)

}

override fun googleLogoutSuccess() {

}

override fun googleLogoutFail() {

}

 f.onActivityResult回调结果:

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {

    super.onActivityResult(requestCode, resultCode, data)

    if (requestCode == mGoogleLogin?.requestCode) {

        val task: Task = GoogleSignIn.getSignedInAccountFromIntent(data)

        mGoogleLogin?.handleSignInResult(task)

    }

    mFacebookLoginUtils?.getCallbackManager()?.onActivityResult(requestCode, resultCode, data)

}

 六、登录成功后处理自己的登录逻辑,调用第三方登录接口,这里Google登录使用的是最新的api,如果找不到导包大家可以修改版本,后面会给出源码地址,这里只是简单说出使用步骤,这里基本上三种登录都已经在项目中成功使用,大家可以尝试一下,如有问题,及时提出,我会修改.

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