将javascript注入Android webview而不显示
将javascript注入Android webview而不显示
提问于 2017-08-23 21:32:55
我有一个网址，我是从第三方得到的。我需要加载这个url，在用户输入密码后，它应该向android客户端发送一个令牌。url如下所示：
https://api.sandbox.veritrans.co.id/v2/token/redirect/521111-1117-bad66da4-cc24-4c59-9ef6-05641fc82c60我要在webview中打开url。我的webview fragment看起来像这样：
public class WebView3DSFragment extends Fragment {
@BindView(R.id.webview_3ds)
WebView webView;
public static WebView3DSFragment newInstance(Bundle b) {
WebView3DSFragment fragment = new WebView3DSFragment();
fragment.setArguments(b);
return fragment;
}
@SuppressLint("SetJavaScriptEnabled")
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_3ds_webview, container, false);
ButterKnife.bind(this, rootView);
String url = getArguments().getString("url", "");
if (url != null) {
webView.getSettings().setJavaScriptEnabled(true);
injectJavaScript();
webView.loadUrl(url);
}
return rootView;
}
public void injectJavaScript(){
webView.addJavascriptInterface(new JS3DSInterface(), "Android");
webView.setWebViewClient(new WebViewClient(){
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
webView.loadUrl(
"javascript:(function callback(response) {\n" +
" if (response.redirect_url) {\n" +
" // If 3Dsecure transaction. Open 3Dsecure dialog\n" +
" console.log('Open Dialog 3Dsecure');\n" +
" openDialog(response.redirect_url);\n" +
"\n" +
" } else if (response.status_code == '200') {\n" +
" // success 3d secure or success normal\n" +
" //close 3d secure dialog if any\n" +
" closeDialog();\n" +
"\n" +
" // store token data in input #token_id\n" +
" $(\"#token-id\").val(response.token_id);\n" +
" " +"Android.set3DSToken(response.status_message)"+
"\n" +
" } else {\n" +
" // failed request token\n" +
" //close 3d secure dialog if any\n" +
" closeDialog();\n" +
" $('#submit-button').removeAttr('disabled');\n" +
" // Show status message.\n" +
" $('#message').text(response.status_message);\n" +
"console.log(JSON.stringify(response));\n" +
" }\n" +
" }\n" +
"\n" +
" // Open 3DSecure dialog box\n" +
" function openDialog(url) {\n" +
" // make sure to load fancybox in a script tag\n" +
" $.fancybox.open({\n" +
" href: url,\n" +
" type: 'iframe',\n" +
" autoSize: false,\n" +
" width: 400,\n" +
" height: 420,\n" +
" closeBtn: false,\n" +
" modal: true\n" +
" });\n" +
" }\n" +
"\n" +
" // Close 3DSecure dialog box\n" +
" function closeDialog() {\n" +
" $.fancybox.close();\n" +
" }\n" +
"});");
}
});
}
class JS3DSInterface {
@JavascriptInterface
public String set3DSToken(String s) {
return "Java method called!!"+s;
}
}
}我在代码中拥有的javascript实际上可以在下面找到：
http://api-docs.midtrans.com/#get-token
我觉得如果我能够将这个javascript注入到webview中，那么当用户输入那里的信息时，我就可以得到回调。但是当我运行webview时，url会加载，但是当我在chrome:// check中检查stetho时，webview不包含我放入的javascript。如何注入javascript
更新:即使是以下内容也无法注入：
webView.setWebViewClient(new WebViewClient(){
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
view.loadUrl("javascript:alert('called by Android')");
}
} 因为我从来没有看到过显示的警告。
回答 1
Stack Overflow用户
回答已采纳
发布于 2019-02-26 14:52:07
在WebView中加载javascript
webView.getSettings().setDomStorageEnabled(true)；
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原文链接：
https://stackoverflow.com/questions/45841240
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