efunbox-xyyf-mobile-android/app/src/main/java/com/edufound/mobile/wxapi/WXEntryActivity.java

package com.edufound.mobile.wxapi;

import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.RequiresApi;
import android.view.WindowManager;

import com.edufound.mobile.base.BaseActivity;
import com.edufound.mobile.main.MainPersenter;
import com.edufound.mobile.pay.PayInit;
import com.edufound.mobile.util.Logger;
import com.edufound.mobile.util.OKHttpUtil;
import com.tencent.mm.opensdk.constants.ConstantsAPI;
import com.tencent.mm.opensdk.modelbase.BaseReq;
import com.tencent.mm.opensdk.modelbase.BaseResp;
import com.tencent.mm.opensdk.modelbiz.WXLaunchMiniProgram;
import com.tencent.mm.opensdk.modelmsg.SendAuth;
import com.tencent.mm.opensdk.openapi.IWXAPIEventHandler;
import com.tencent.mm.opensdk.openapi.WXAPIFactory;

import org.json.JSONException;

import java.io.IOException;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;


public class WXEntryActivity extends BaseActivity implements IWXAPIEventHandler {


    @RequiresApi(api = Build.VERSION_CODES.P)
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        PayInit.getInstance().WX_API = WXAPIFactory.createWXAPI(this, PayInit.getInstance().WX_APPID);
        PayInit.getInstance().WX_API.handleIntent(getIntent(), this);


    }

    @Override
    public void onReq(BaseReq baseReq) {
    }

    //请求回调结果处理
    @Override
    public void onResp(BaseResp baseResp) {
        if (baseResp.getType() == ConstantsAPI.COMMAND_LAUNCH_WX_MINIPROGRAM) {
//            WXLaunchMiniProgram.Resp launchMiniProResp = (WXLaunchMiniProgram.Resp) baseResp;
//            String extraData = launchMiniProResp.extMsg; //对应小程序组件 <button open-type="launchApp"> 中的 app-parameter 属性
//            MainActivity.mIntences.mWebView.loadUrl("javascript:appDispatch('" + extraData + "')");
//            Intent intent = new Intent(mActivity, MainActivity.class);
//            startActivity(intent);
//            finish();
        } else {
            switch (baseResp.errCode) {
                case BaseResp.ErrCode.ERR_OK:
                    String code = ((SendAuth.Resp) baseResp).code;
                    //获取用户信息
                    getAccessToken(code);
                    break;
                case BaseResp.ErrCode.ERR_AUTH_DENIED://用户拒绝授权
                    finish();
                    break;
                case BaseResp.ErrCode.ERR_USER_CANCEL://用户取消
                    finish();
                    break;
                default:
                    Logger.e("baseResp.errCode：" + baseResp.errCode);
                    finish();
                    break;
            }
        }

    }

    void getAccessToken(String code) {
        StringBuffer loginUrl = new StringBuffer();
        loginUrl.append("https://api.weixin.qq.com/sns/oauth2/access_token")
                .append("?appid=")
                .append(PayInit.getInstance().WX_APPID)
                .append("&secret=")
                .append(PayInit.getInstance().WX_SECRET)
                .append("&code=")
                .append(code)
                .append("&grant_type=authorization_code");
        try {
            OKHttpUtil.getInstance().getContentLength(loginUrl.toString(), new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {

                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    String access = null;
                    String openId = null;
                    try {
                        String json = response.body().string();
                        org.json.JSONObject jsonObj = new org.json.JSONObject(json);
                        access = jsonObj.getString("access_token");
                        openId = jsonObj.getString("openid");
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    String getUserInfo = "https://api.weixin.qq.com/sns/userinfo?access_token=" + access + "&openid=" + openId;
                    OKHttpUtil.getInstance().getContentLength(getUserInfo, new Callback() {
                        @Override
                        public void onFailure(Call call, IOException e) {

                        }

                        @Override
                        public void onResponse(Call call, Response response) throws IOException {
                            try {
                                String json = response.body().string();
                                Message msg = new Message();
                                msg.what = MainPersenter.WECHAT_LOGIN;
                                msg.obj = json;
                                MainPersenter.mPersenterHandler.sendMessage(msg);
                                finish();
                            } catch (Exception e) {
                                e.printStackTrace();
                            }
                        }
                    });
                }
            });
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    protected void onPause() {
        overridePendingTransition(0, 0);
        super.onPause();
    }


}