一、前导
上一篇讲的不是很好,这里再重新讲一下。
Paypal手机支付有2种形式:
1.Mobile Express Checkout,MEC,快捷支付
2.MPL
如果采用MEC支付方式,这种方式点击Checkout按钮之后的页面一直到付款结束都是url的形式,必须先有Web站点的支付,所以只能通过WebView的形式进行记载,使用起来和Web站点效果一样,如果加载的页面中有些内容不想显示,可以隐藏。
二、MEC支付案例
package com.sound.chinabuye.activity;
import http.HttpUrls;
import java.util.List;
import org.apache.http.cookie.Cookie;
import tool.NewTokenCallBack;
import tool.TokenTools;
import tool.UserInfo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.webkit.CookieManager;
import android.webkit.CookieSyncManager;
import android.webkit.JsResult;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
import com.sound.chinabuye.R;
import com.sound.chinabuye.bean.BroadAction;
public class CheckoutActivity2 extends Activity {
public static final String TAG = "CheckoutActivity2";
private WebView webView;
private List<Cookie> cookies;
private ProgressDialog dialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
manageActivity();
webView = new WebView(this);
webView.setWebViewClient(new MyWebViewClient());
webView.setWebChromeClient(new MyChromeClient());
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setUseWideViewPort(false);
webSettings.setSupportZoom(false);
setContentView(webView);
dialog = new ProgressDialog(this);
dialog.setMessage(getString(R.string.loading));
dialog.setCancelable(false);
// 请求获得cookies
requestData();
}
private void requestData() {
TokenTools.requestNewToken(CheckoutActivity2.this, new NewTokenCallBack() {
@Override
public void getNewTokenSuccess(String newAccessToken) {
if (newAccessToken != null) {
String customerid = UserInfo.getUserInfoInstance().getUserid();
String url = "http://www.chinabuye.com/service/product/listcartweb" + "?productid=64396&qty=1&customerid=" + customerid + "&ACCESSTOKEN=" + newAccessToken;
webView.loadUrl(url);
}
}
});
}
@Override
protected void onDestroy() {
super.onDestroy();
CookieSyncManager.createInstance(CheckoutActivity2.this);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.removeAllCookie();
CookieSyncManager.getInstance().sync();
}
private void setCookiesVia2Url(String fromUrl, String toUrl) {
CookieSyncManager.createInstance(CheckoutActivity2.this);
CookieManager cookieManager = CookieManager.getInstance();
String value = cookieManager.getCookie(fromUrl);
cookieManager.setCookie(toUrl, value);
CookieSyncManager.getInstance().sync();
}
private void manageActivity() {
ActivityInstanceManager.getActivityInstanceManager().addActivity(this);
}
private class MyWebViewClient extends WebViewClient {
private String currentUrl;
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
Log.e(TAG, "start:" + url);
currentUrl = url;
// 开始跳转Paypal登录界面
if (url.contains("http://www.chinabuye.com/service/product/listcartweb")) {
dialog.show();
}
// 开始加载Place Order,包含从其他页面返回的情况和开始提交订单的情况
if (url.contains("http://www.chinabuye.com/m/paypal/express/saveOrder") || url.contains("PayerID") || url.contains("http://www.chinabuye.com/m/paypal/express/review")) {
if (dialog.isShowing()) {
dialog.dismiss();
}
dialog.show();
}
// 开始加载 下单成功的界面
if (url.contains("http://www.chinabuye.com/m/checkout/onepage/success")) {
dialog.show();
}
super.onPageStarted(view, url, favicon);
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.e(TAG, "load:" + url);
/** 这里不做任何拦截操作 ***/
// view.loadUrl(url);
// return true;
return super.shouldOverrideUrlLoading(view, url);
}
@Override
public void onPageFinished(WebView view, String url) {
Log.e(TAG, "finish:" + url);
if (url.contains("customerid")) {
String url2 = "http://www.chinabuye.com/m/checkout/cart";// 这个直接使用Web购物车,测试没问题
String url3 = "http://www.chinabuye.com/paypal/express/shortcut";// 这个直接拦截到登录界面,暂时没发现问题
setCookiesVia2Url(url, url3);
view.loadUrl(url3);
}
// paypal登录界面加载完毕
if (url.contains("https://www.paypal.com/au/cgi-bin/webscr") && url.contains("#m")) {
dialog.dismiss();
}
// Place Order界面加载完毕
if (url.contains("http://www.chinabuye.com/m/paypal/express/review")) {
// 尽管在这之前已经进行了隐藏操作,但是偶尔还是会出现没有隐藏的情况,这里重新加载一次
hidePlaceOrderJS(view);
dialog.dismiss();
}
// 下单成功的界面加载完毕
if (url.contains("http://www.chinabuye.com/m/checkout/onepage/success")) {
// 尽管在这之前已经进行了隐藏操作,但是偶尔还是会出现没有隐藏的情况,这里重新加载一次
hideSaveOrderJS(view);
dialog.dismiss();
// 发送广播,清空购物车
Intent intent = new Intent();
intent.setAction(BroadAction.EMPTY);
CheckoutActivity2.this.sendBroadcast(intent);
Log.e("sendbroad", "buy.success");
}
// 用户邮箱信息为空
if (url.contains("http://www.chinabuye.com/m/customer/account/edit")) {
Toast.makeText(CheckoutActivity2.this, "Invalid email address NULL", 0).show();
}
super.onPageFinished(view, url);
}
// 处理在浏览器中的按键事件
@Override
public boolean shouldOverrideKeyEvent(WebView view, KeyEvent event) {
if (event.equals(KeyEvent.KEYCODE_BACK) && view.canGoBack()) {
view.goBack();
return true;
} else if (event.equals(KeyEvent.KEYCODE_BACK)) {
CheckoutActivity2.this.finish();
return true;
}
return super.shouldOverrideKeyEvent(view, event);
}
// 加载页面资源时会调用,比如加载图片时,每加载一张图片会调用一次
@Override
public void onLoadResource(WebView view, String url) {
// Log.e(TAG, "loadResource:" + url);
// Web购物车
if (currentUrl.contains("http://www.chinabuye.com/m/checkout/cart")) {
hideMCartJS(view);
}
// Place Order
if (currentUrl.contains("http://www.chinabuye.com/m/paypal/express/review")) {
hidePlaceOrderJS(view);
}
// 下单成功的页面
if (currentUrl.contains("http://www.chinabuye.com/m/checkout/onepage/success")) {
hideSaveOrderJS(view);
}
// 修改地址的时候,最先调用的是该方法,为了体验好,这里先显示对话框
if (url.contains("http://www.chinabuye.com/m/paypal/express/ajaxEditAddress")) {
dialog.show();
}
super.onLoadResource(view, url);
}
}
// 隐藏M Cart界面的头部和底部
private void hideMCartJS(WebView view) {
view.loadUrl("javascript:window.handler.show(document.getElementById('topheader').style.display='none');");
view.loadUrl("javascript:window.handler.show(document.getElementById('footer').style.display='none');");
}
// 隐藏Place Order界面
private void hidePlaceOrderJS(WebView view) {
// 隐藏用户和logo信息
view.loadUrl("javascript:window.handler.show(document.getElementById('topheader').style.display='none');");
// 隐藏placeorder之后
view.loadUrl("javascript:window.handler.show(document.getElementById('iph_menu').style.display='none');");
// 隐藏最底部联系我们等信息
view.loadUrl("javascript:window.handler.show(document.getElementById('footer').style.display='none');");
// 隐藏Review Review Order和Shipping Reminders信息
view.loadUrl("javascript:window.handler.show(document.getElementById('paypal_page_head').style.display='none');");
view.loadUrl("javascript:window.handler.show(document.getElementById('paypal_important').style.display='none');");
// 细节隐藏
// view.loadUrl("javascript:window.handler.show(document.getElementById('paypal_change_shipping_address').style.display='none');");
view.loadUrl("javascript:window.handler.show(document.getElementById('paypal_change_payment_method').style.display='none');");
view.loadUrl("javascript:window.handler.show(document.getElementById('paypal_edit_shopping_cart').style.display='none');");
}
// 隐藏Save Order界面
private void hideSaveOrderJS(WebView view) {
view.loadUrl("javascript:window.handler.show(document.getElementById('topheader').style.display='none');");
view.loadUrl("javascript:window.handler.show(document.getElementById('footer').style.display='none');");
view.loadUrl("javascript:window.handler.show(document.getElementById('iph_menu').style.display='none');");
view.loadUrl("javascript:window.handler.show(document.getElementsByClassName('button-set')[0].style.display='none');");
}
private class MyChromeClient extends WebChromeClient {
// 处理javascript中的confirm,确认
// 登录界面有该对话框
// 继续页面有该对话框
@Override
public boolean onJsConfirm(WebView view, String url, String message, final JsResult result) {
Builder builder = new Builder(CheckoutActivity2.this);
builder.setTitle("Confirm Dialog");
builder.setMessage("Cancle the purchase and return to the ShoppingCart");
Log.e(TAG, "Mesage:" + message);
Log.e(TAG, "JsResult:" + result.toString());
builder.setPositiveButton(R.string.ok, new AlertDialog.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// result.confirm();
// 拦截确定按钮
Intent intent = new Intent(CheckoutActivity2.this, CartActivity.class);
startActivity(intent);
finish();
}
});
builder.setNegativeButton(R.string.cancel, new AlertDialog.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// 拦截取消按钮
result.cancel();
}
});
builder.setCancelable(false);
builder.create();
builder.show();
return true;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode == KeyEvent.KEYCODE_BACK){
//这样会出现很多奇怪的问题,还是直接结束
// if(webView.canGoBack()){
// webView.goBack();
// }else{
// CheckoutActivity2.this.finish();
// }
CheckoutActivity2.this.finish();
return true;
}
return super.onKeyDown(keyCode, event);
}
}
上面这个案例是我在app中实际使用到的,没有发现有什么问题。做MEC支付,主要思想是过滤URL,进行对话框的显示和消失、页面隐藏操作等,中间涉及JS。