安卓第三方登陸微信

時間 2019-11-11

原文原文鏈接

微信開放平臺https://open.weixin.qq.com/cgi-bin/index?t=home/index&lang=zh_CNandroid

微信審覈在1-3個工做日內完成json

集成步驟文檔寫的挺清楚，這裏只貼關鍵代碼api

調起微信認證頁面，在微信響應後獲取到code微信

public void reqPass() {
        final SendAuth.Req req = new SendAuth.Req();
        req.scope = "snsapi_userinfo";
        req.state = "bbbl_wx_login_test";
        if (api != null) {
            api.sendReq(req);
            Toast.makeText(getBaseContext(), "請求拉起微信認證頁面", LENGTH_SHORT).show();
        } else {
            Toast.makeText(getBaseContext(), "微信認證走丟了，跳轉至登錄界面，請嘗試再次登錄", Toast.LENGTH_LONG).show();
        }
    }

 @Override
    public void onResp(BaseResp baseResp) {
        switch (baseResp.errCode) {
            case BaseResp.ErrCode.ERR_OK://分享成功
                if (ConstantsAPI.COMMAND_SENDMESSAGE_TO_WX == baseResp.getType()) {
                    Toast.makeText(WXEntryActivity.this, "分享成功", Toast.LENGTH_LONG).show();
                    finish();
                    break;
                }
                String code = ((SendAuth.Resp) baseResp).code;
                reqes(code);
                break;
            case BaseResp.ErrCode.ERR_USER_CANCEL://分享取消
                Toast.makeText(WXEntryActivity.this, "您選擇了取消", Toast.LENGTH_LONG).show();
                finish();
                break;
            case BaseResp.ErrCode.ERR_AUTH_DENIED://分享拒絕
                Toast.makeText(WXEntryActivity.this, "您選擇了取消", Toast.LENGTH_LONG).show();
                finish();
                break;
        }
        finish();
    }

獲取到code後就能夠訪問接口得到access_token，繼而獲得用戶信息app

  public void reqes(String code) {
        RequestQueue mQueue = Volley.newRequestQueue(this);
        StringRequest stringRequest = new StringRequest(Constants.REQ_URL
                + "?appid=" + Constants.APP_ID_WX + "&secret=" + Constants.SECRET_WX
                + "&code=" + code + "&grant_type=authorization_code",
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        TokenInfo json = new Gson().fromJson(response,
                                TokenInfo.class);
                        wx_access_token = json.getAccess_token();
                        wx_openid = json.getOpenid();
                        getUserInfo(wx_access_token, wx_openid);

                    }
                }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
            }
        });
        mQueue.add(stringRequest);
        mQueue.start();
    }

    public void getUserInfo(String access_token, final String openid) {
        RequestQueue mQueue = Volley.newRequestQueue(this);
        StringRequest stringRequest = new StringRequest(Constants.USERINFO_URL
                + "?access_token=" + access_token + "&openid=" + openid,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        Log.i("WXUserInfo", response);
                        WXUserInfo info = new Gson().fromJson(response, WXUserInfo.class);
                        String nickname = info.getNickname();
                        String headimgurl = info.getHeadimgurl();
                        //判斷是否爲魅族手機，採用不一樣的編碼，以解決亂碼的問題
                        if ("Meizu".equals(android.os.Build.MANUFACTURER)) {
                            //魅族手機
                            try {
                                String en_nickname = URLEncoder.encode(nickname, "iso-8859-1");
                                String de_nickname = URLDecoder.decode(en_nickname, "utf-8");
                                bindCustomer(de_nickname, headimgurl, openid, "wx");
                            } catch (UnsupportedEncodingException e) {
                                e.printStackTrace();
                            }
                        } else {
                            try {
                                String en_nickname = URLEncoder.encode(nickname, "utf-8");
                                String de_nickname = URLDecoder.decode(en_nickname, "utf-8");
                                bindCustomer(de_nickname, headimgurl, openid, "wx");
                            } catch (UnsupportedEncodingException e) {
                                e.printStackTrace();
                            }
                        }

                    }
                }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
            }
        });
        mQueue.add(stringRequest);
        mQueue.start();
    }