Android 微信支付

深藏阁楼爱情的钟 2024-02-27 05:47 5阅读 0赞

1、导入依赖

//微信支付
    //官方sdk下载文档：https://developers.weixin.qq.com/doc/oplatform/Downloads/Android_Resource.html
    //官方集成文档：https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=8_5
    implementation 'com.tencent.mm.opensdk:wechat-sdk-android:+'

2、初始化微信33

/**
     * 初始化微信
     */
    private void initWechat() {
        wxapi = WXAPIFactory.createWXAPI(getApplicationContext(), null);
        wxapi.registerApp(Config.WECHAT_AK);//Config.WECHAT_AK表示App Id
    }

3、微信支付

/**
     * 处理微信支付
     *
     * @param data
     */
    private void processWechat(WechatPay data) {
        //把服务端返回的参数
        //设置到对应的字段
        PayReq request = new PayReq();
    
        request.appId = data.getAppid();
        request.partnerId = data.getPartnerid();
        request.prepayId = data.getPrepayid();
        request.nonceStr = data.getNoncestr();
        request.timeStamp = data.getTimestamp();
        request.packageValue = data.getPackageValue();
        request.sign = data.getSign();
    
        AppContext.getInstance().getWxapi().sendReq(request);
    }

4、支付结果处理：包名下创建.wxapi.WXPayEntryActivity.java

/**
     * 微信支付回调界面
     */
    public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler {
        private static final String TAG = "WXPayEntryActivity";
    
        @Override
        protected void onCreate(@Nullable Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
    
            TextView textView = new TextView(this);
            setContentView(textView);
    
            processIntent(getIntent());
        }
    
        @Override
        protected void onNewIntent(Intent intent) {
            super.onNewIntent(intent);
            processIntent(intent);
        }
    
        /**
         * 处理微信回调结果
         *
         * @param intent
         */
        private void processIntent(Intent intent) {
            AppContext.getInstance().getWxapi().handleIntent(intent, this);
        }
    
        /**
         * 请求微信，会回调该方法
         *
         * @param baseReq
         */
        @Override
        public void onReq(BaseReq baseReq) {
        }
    
        /**
         * 微信回调
         *
         * @param baseResp
         */
        @Override
        public void onResp(BaseResp baseResp) {
            Timber.d("onResp %d %d %s", baseResp.getType(), baseResp.errCode, baseResp.errStr);
    
            if (baseResp.getType() == ConstantsAPI.COMMAND_PAY_BY_WX) {
                //支付回调
    
                //发送通知，支付界面处理
                EventBus.getDefault().post(new WechatPayStatusChangedEvent(baseResp));
                finish();
            }
        }
    }

微信支付状态改变

/**
         * 微信支付状态改变了
         *
         * @param event
         */
        @Subscribe(threadMode = ThreadMode.MAIN)
        public void onWechatPayStatusChanged(WechatPayStatusChangedEvent event) {
            if (BaseResp.ErrCode.ERR_OK == event.getData().errCode) {
                //本地支付成功
                showLoading(R.string.hint_pay_wait);
                binding.primary.postDelayed(() -> {
                    checkPayStatus();
                }, 3000);
            } else if (BaseResp.ErrCode.ERR_USER_CANCEL == event.getData().errCode) {
                //支付取消
            } else {
                //支付失败
            }
        }