集成微信支付

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蓝不蓝编程 2022-02-27 16:14:59 博主文章分类：安卓 ©著作权

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1.build.gradle文件中增加：

compile 'com.tencent.mm.opensdk:wechat-sdk-android-with-mta:+'

2. 代码目录下增加如下类(WXPayEntryActivity.java，注意要放在wxapi包下)：

package com.test.wxapi;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.widget.Toast;

import com.tencent.mm.opensdk.modelbase.BaseReq;
import com.tencent.mm.opensdk.modelbase.BaseResp;
import com.tencent.mm.opensdk.openapi.IWXAPI;
import com.tencent.mm.opensdk.openapi.IWXAPIEventHandler;
import com.tencent.mm.opensdk.openapi.WXAPIFactory;


/**
 * 微信支付回调类
 */
public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler {
    private IWXAPI api;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        api = WXAPIFactory.createWXAPI(this, WEIXIN_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 baseReq) {}

    @Override
    public void onResp(BaseResp baseResp) {
        Toast.makeText(this, "success", Toast.LENGTH_SHORT).show();
        this.finish();
    }

//    private boolean isSuccess(BaseResp baseResp) {
//        if (baseResp != null && baseResp.getType() == ConstantsAPI.COMMAND_PAY_BY_WX) {
//            if (baseResp.errCode == 0) {
//                return true;
//            }
//        }
//        return false;
//    }
}

3.在manifest文件中配置回调

<activity
            android:name=".wxapi.WXPayEntryActivity"
            android:exported="true"
            android:launchMode="singleTop"/>

4.调用函数

关键点：这个函数的入参map数据是来自服务器端和微信通信之后获取到的信息（微信支付不是单单客户端就可以完成的，需要服务器配合一起完成。）

public void gotoWeixinPay(Context context, Map<String, Object> map) {
        String weixinAppId = WEIXIN_APP_ID;
        final IWXAPI wxApi = WXAPIFactory.createWXAPI(context, weixinAppId);
        wxApi.registerApp(weixinAppId);
        final String appid = map.get("appid").toString();
        final String partnerId = map.get("parterid").toString();
        final String prepayId = map.get("prepayid").toString();
        final String packageValue = map.get("packageValue").toString();
        final String nonceStr = map.get("noncestr").toString();
        final String timeStamp = map.get("timestamp").toString();
        final String sign = map.get("sign").toString();

        Runnable runnable = new Runnable() {
            @Override
            public void run() {
                PayReq req = new PayReq();
                req.appId = appid;
                req.partnerId = partnerId;
                req.prepayId = prepayId;
                req.packageValue = packageValue;
                req.nonceStr = nonceStr;
                req.timeStamp = timeStamp;
                req.sign = sign;
                wxApi.sendReq(req);
            }
        };
        Thread payThread = new Thread(runnable);
        payThread.start();
    }