Android WebView 中的程序化点击 [英] programmatic click in Android WebView

问题描述

我有一个带有 href 的网站，它将我重定向到 https

I have a website with href in it which redirected me to https

<a id="mA" href="javascript:pLogin(2)" class="login-link__link private-cab-link"><i class="icon-user"></i>Авторизация</a>

所以，我可以通过 JavaScript 点击它.它适用于 chrome 控制台

So, I can click on it by JavaScript. It works in chrome console

javascript:(function(){document.getElementById('mA').click();})()

现在我正在尝试通过单击我的应用程序按钮在 WebView 中执行相同的操作.

Now I'm trying to do the same in WebView by clicking my app's button.

public class RostelecomLoginActivity extends Activity {

    WebView webView;
    String url;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
        setContentView(R.layout.activity_rostelecom_login);
        Intent webIntent = getIntent();
        String url = webIntent.getStringExtra("url");

        webView = (WebView) findViewById(R.id.webView1);
        webView.setWebViewClient(new MeWebViewClient());
        webView.getSettings().setJavaScriptEnabled(true);
        webView.getSettings().setSaveFormData(true);
        webView.getSettings().setSavePassword(true);
        webView.loadUrl(url);

        Button buttoner = (Button) findViewById(R.id.button1);
        buttoner.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                webView.loadUrl("javascript:(function(){document.getElementById('mA').click();})()");
            }
        });

    }

}

我正在使用 MyWebViewClient 来允许所有证书

I'm using MyWebViewClient to allow all certificates

public class MeWebViewClient extends WebViewClient {

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        view.loadUrl(url);
        return true;
    }

    @Override
    public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
        handler.proceed();
    }
}

js 注入不起作用.如果我在 WebView 中点击 href 就可以了.有什么问题?

The js injection doesn't work. If I click on href in WebView it works. What can be wrong?

推荐答案

click() 没有在 android js 接口中实现，你必须使用 HTML DOM 事件对象，像这样:

click() isn't implemented in android js interface, you have to use HTML DOM Event Object, like this:

webView.loadUrl("javascript:(function(){"+
    "l=document.getElementById('mA');"+
    "e=document.createEvent('HTMLEvents');"+
    "e.initEvent('click',true,true);"+
    "l.dispatchEvent(e);"+
    "})()");

这篇关于Android WebView 中的程序化点击的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！