Android分享-微信、Facebook、Google

前言：因为项目涉及到国际化，故而国内需要集成微信分享，国外需要集成Facebook、Google，这里大致记录下集成过程，希望做笔记的同时也能给同行踩踩坑。

分享集成官网：
1.微信：https://open.weixin.qq.com/cgi-bin/appdetail
2.Facebook：https://developers.facebook.com/docs/android/getting-started
3.Google：https://developers.google.com/+/mobile/android/share/

1.引入分享库：

    implementation 'com.tencent.mm.opensdk:wechat-sdk-android-without-mta:5.1.4'
    implementation 'com.facebook.android:facebook-share:[4,5)',{
        exclude group: 'com.google.zxing', module: 'core'
    }
    implementation 'com.google.android.gms:play-services-plus:15.0.1'

2.微信分享：

• 在项目包名下新建包，新建包名必须为：wxapi
• wxapi包名下新建类：WXEntryActivity
• 分享回调处理在WXEntryActivity中，具体内容如下：

/**
 * Created by Chao  2018/7/20 on 11:05
 * description 微信SDK回调路径
 */
class WXEntryActivity : AppCompatActivity(), IWXAPIEventHandler {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        WXAPIFactory.createWXAPI(this, App.APP_ID, false).handleIntent(intent, this);
    }

    /**
     *  微信发送请求到第三方应用时，会回调到该方法
     */
    override fun onReq(p0: BaseReq?) {
    }

    /**
     * 第三方应用发送到微信的请求处理后的响应结果，会回调到该方法
     * app发送消息给微信，处理返回消息的回调
     */
    override fun onResp(resp: BaseResp) {
        when (resp.errCode) {
            BaseResp.ErrCode.ERR_AUTH_DENIED, BaseResp.ErrCode.ERR_USER_CANCEL -> {
                showToast("分享取消")
                finish()
            }

            BaseResp.ErrCode.ERR_OK -> finish()
        }
    }
}

• 微信分享初始化：

/**
 * Created by Chao  2018/5/8 on 13:31
 * description
 */

class App : BaseApplication() {

    override fun init() {
        registerWeChat(this)
    }

    /**
     * 注册微信分享
     */
    private fun registerWeChat(context: Context) {
        api = WXAPIFactory.createWXAPI(context, APP_ID, true);
        api.registerApp(APP_ID);
    }

    companion object {
        lateinit var api: IWXAPI
        const val APP_ID = "wx88888888"
        fun getWXAPI(): IWXAPI {
            return api
        }
    }
}

• 微信分享调起：

/**
 * Created by Chao  2018/7/25 on 16:22
 * description
 */
object ShareUtil {


    fun share(activity: AppCompatActivity) {
        CommonShareDialog.show(activity, R.layout.common_dialog_share_chinese) {
            val webpage = WXWebpageObject()
            webpage.webpageUrl = "http://www.baidu.com"

            val msg = WXMediaMessage(webpage)
            msg.title = "标题"
            msg.description = "描述"
            //msg.thumbData = getWXThumb(bitmap).toByteArray()

            val req = SendMessageToWX.Req()
            //WXSceneTimeline朋友圈    WXSceneSession聊天界面
            req.scene = if (it == 0) SendMessageToWX.Req.WXSceneSession else SendMessageToWX.Req.WXSceneTimeline//0微信  1朋友圈
            req.message = msg
            req.transaction = System.currentTimeMillis().toString()
            App.getWXAPI().sendReq(req)
            if (it == 0) {//微信
                activity.showToast("微信")
            } else if (it == 1) {//朋友圈
                activity.showToast("朋友圈")
            }
        }
    }

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

2.facebook、google+分享：

/**
 * Created by Chao  2018/7/25 on 16:22
 * description
 */
object ShareUtil {
    private val GOOGLE_REQUEST_CODE: Int = 162
    private var callbackManager: CallbackManager? = null

    fun share(activity: AppCompatActivity) {
        FacebookSdk.setApplicationId("217521058906811")
        FacebookSdk.sdkInitialize(activity.applicationContext)
        CommonShareDialog.show(activity, R.layout.common_dialog_share_international) {
            if (it == 0) {//facebook
                val content = ShareLinkContent.Builder()
                        .setContentUrl(Uri.parse("https://developers.facebook.com"))
                        .build()
                callbackManager = CallbackManager.Factory.create()
                val shareDialog = ShareDialog(activity)
                shareDialog.registerCallback(callbackManager, object : FacebookCallback<Sharer.Result> {
                    override fun onCancel() {
                        activity.showToast("分享取消")
                    }

                    override fun onSuccess(result: Sharer.Result?) {
                        activity.showToast("分享成功")
                    }

                    override fun onError(error: FacebookException?) {
                        activity.showToast("分享失败")
                    }

                })
                shareDialog.show(content, ShareDialog.Mode.AUTOMATIC)
                //activity.showToast("facebook")
            } else if (it == 1) {//google
                val shareIntent = PlusShare.Builder(activity)
                        .setType("text/plain")      //  不变
                        .setText("Welcome to the Google+ platform.")   // 自定义内容
                        .setContentUrl(Uri.parse("https://developers.google.com/+/"))   // 自定义链接地址
                        .getIntent()
                try {
                    activity.startActivityForResult(shareIntent, GOOGLE_REQUEST_CODE)
                } catch (e: ActivityNotFoundException) {
                    activity.showToast("You haven't installed google+ on your device")
                }
                //activity.showToast("google+")
            }
        }
    }

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

            return
        }
        callbackManager?.onActivityResult(requestCode, resultCode, data)
    }
}

3.分享展示：