一、集成步骤概括

商户通过直接与PayerMax服务端交互的方式进行下单请求，通过该服务，商户可在移动Web集成印度、印尼、菲律宾等国多种在线收款方式，如借记卡、信用卡、电子钱包等，轻松具备印度业务收款能力。

1.调用API请求下单,请求地址参见：联调环境地址

2.根据PayerMax返回的URL，打开H5收银台供用户支付

3.接收异步回调通知，根据支付结果处理订单

4.

        WebSettings webSettings = mWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);

        webSettings.setSupportMultipleWindows(true);
        webSettings.setJavaScriptCanOpenWindowsAutomatically(true);

        webSettings.setPluginState(WebSettings.PluginState.ON); //enable plugin. Ex: flash. deprecated on API 18
        //whether the zoom controls display on screen.
        webSettings.setBuiltInZoomControls(true);
        webSettings.setSupportZoom(true);
        webSettings.setDisplayZoomControls(false);

        //disable the webview font size changes according the phone font size.
        webSettings.setTextZoom(100);
        webSettings.setSaveFormData(true);
        webSettings.setUseWideViewPort(true);
        webSettings.setLoadWithOverviewMode(true);
        webSettings.setAllowFileAccess(true);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            webSettings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
            CookieManager.getInstance().setAcceptThirdPartyCookies(this, true);
        }
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            webSettings.setAllowUniversalAccessFromFileURLs(true);
        }

        webSettings.setAppCacheEnabled(true);
        String appCacheDir = getDir("cache", Context.MODE_PRIVATE).getPath();
        webSettings.setAppCachePath(appCacheDir);
        webSettings.setAppCacheMaxSize(1024*1024*20);
        webSettings.setDomStorageEnabled(true);
        webSettings.setDatabaseEnabled(true);
        webSettings.setCacheMode(WebSettings.LOAD_DEFAULT);

        try {
            mWebView.removeJavascriptInterface("searchBoxJavaBridge_");
            mWebView.removeJavascriptInterface("accessibility");
            mWebView.removeJavascriptInterface("accessibilityTraversal");
        } catch (Exception e) {}

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            mWebView.enableSlowWholeDocumentDraw();
        }

二、API下单接口参数说明

API