//1.create request for wechat pay
        WechatPayReq wechatPayReq = new WechatPayReq.Builder()
                .with(this) //activity instance
                .setAppId(appid) //wechat pay AppID
                .setPartnerId(partnerid)//wechat pay partner id
                .setPrepayId(prepayid)//pre pay id
//								.setPackageValue(wechatPayReq.get)//"Sign=WXPay"
                .setNonceStr(noncestr)
                .setTimeStamp(timestamp)//time stamp
                .setSign(sign)//sign
                .create();
        //2. send the request with wechat pay
        PayAPI.getInstance().sendPayRequest(wechatPayReq);


        //set the callback for wechat pay
        //wechatPayReq.setOnWechatPayListener(new OnWechatPayListener);

        //step 1 create config for ali pay
        AliPayAPI.Config config = new AliPayAPI.Config.Builder()
                .setRsaPrivate(rsa_private) // rsa private key from partner (pkcs8 format)
                .setRsaPublic(rsa_public)//ali rsa public key
                .setPartner(partner) //set partner
                .setSeller(seller) //set partner seller accout
                .create();

        //step 2 create reqeust for ali
        AliPayReq aliPayReq = new AliPayReq.Builder()
                .with(activity)//Activity instance
                .apply(config)// the above custome config
                .setOutTradeNo(outTradeNo)//set unique trade no
                .setPrice(price)//set price
                .setSubject(orderSubject)//set order subject
                .setBody(orderBody)//set order detail
                .setCallbackUrl(callbackUrl)//set callback for pay reqest
                .create()//
                .setOnAliPayListener(null);//

        //step 3 send the request for ali pay
        PayAPI.getInstance().sendPayRequest(aliPayReq);

        // set the ali pay callback
        //aliPayReq.setOnAliPayListener(new OnAliPayListener);

        //step 1 create raw ali pay order info
        String rawAliOrderInfo = new AliPayReq2.AliOrderInfo()
                .setPartner(partner) //set partner
                .setSeller(seller)  //set partner seller accout
                .setOutTradeNo(outTradeNo) //set unique trade no
                .setSubject(orderSubject) //set order subject
                .setBody(orderBody) //set order detail
                .setPrice(price) //set price
                .setCallbackUrl(callbackUrl) //set callback for pay reqest
                .createOrderInfo(); //create ali pay order info


        //step 2 get the signed ali pay order info
        String signAliOrderInfo = getSignAliOrderInfoFromServer(rawAliOrderInfo);

        //step 3 step 3 send the request for ali pay
        AliPayReq2 aliPayReq = new AliPayReq2.Builder()
                .with(activity)//Activity instance
                .setSignedAliPayOrderInfo(signAliOrderInfo)
                .setRawAliPayOrderInfo(rawAliOrderInfo)//set the ali pay order info
                .setSignedAliPayOrderInfo(signAliOrderInfo) //set the signed ali pay order info
                .create()//
                .setOnAliPayListener(null);//
        PayAPI.getInstance().sendPayRequest(aliPayReq);


        //set the ali pay callback
        //aliPayReq.setOnAliPayListener(new OnAliPayListener);

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import com.tencent.mm.sdk.constants.ConstantsAPI;
import com.tencent.mm.sdk.modelbase.BaseReq;
import com.tencent.mm.sdk.modelbase.BaseResp;
import com.tencent.mm.sdk.openapi.IWXAPI;
import com.tencent.mm.sdk.openapi.IWXAPIEventHandler;
import com.tencent.mm.sdk.openapi.WXAPIFactory;

public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler{

   private static final String TAG = "MicroMsg.SDKSample.WXPayEntryActivity";
   
   private IWXAPI api;
   
   //TODO　need to replace your APP_ID
   private String APP_ID = "wx0xxxxxxxxx"; //need to replace your APP_ID
   
   @Override
   public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
//        setContentView(R.layout.pay_result);
       
   	api = WXAPIFactory.createWXAPI(this, APP_ID);
       api.handleIntent(getIntent(), this);
   }

   @Override
   protected void onNewIntent(Intent intent) {
   	super.onNewIntent(intent);
   	setIntent(intent);
       api.handleIntent(intent, this);
   }

   @Override
   public void onReq(BaseReq req) {
   }

   @Override
   public void onResp(BaseResp resp) {
   	Log.d(TAG, "onPayFinish, errCode = " + resp.errCode);

   	if (resp.getType() == ConstantsAPI.COMMAND_PAY_BY_WX) {
//			AlertDialog.Builder builder = new AlertDialog.Builder(this);
//			builder.setTitle(R.string.app_tip);
//			builder.setMessage(getString(R.string.pay_result_callback_msg, String.valueOf(resp.errCode)));
//			builder.show();

           //send the wechat pay broadcast receiver，and you should the define wechat pay broadcast receive 

   		Intent intent = new Intent();
   		intent.setAction(WeChatPayReceiver.ACTION_PAY_RESULT);
   		intent.putExtra("result", resp.errCode);
   		sendBroadcast(intent);
   		
   		finish();
   	}
   }
}