如何从webView1中的链接加载webView2中的html文件

时间:2013-02-18 19:56:47

标签: android html5 webview

我使用webView1 +本地html文件,就像一个带有链接的自定义导航栏。

单击链接时,必须在webView2中加载要求的html文件。

这可能吗?

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setRequestedOrientation (ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); // Fixed Portrait orientation
    requestWindowFeature(Window.FEATURE_NO_TITLE); // No app title bar
    setContentView(R.layout.activity_main);

    myNavbarView = (WebView)findViewById(R.id.navbarView);
    myNavbarView.getSettings().setJavaScriptEnabled(true);
    myNavbarView.setVerticalScrollBarEnabled(false);
    myNavbarView.setHorizontalScrollBarEnabled(false);
    myNavbarView.setWebViewClient(new WebViewClient());
    myNavbarView.loadUrl("file:///android_asset/HTML/navbar.html");

    myWebView = (WebView)findViewById(R.id.webView);
    myWebView.getSettings().setJavaScriptEnabled(true);
    //hack to load twitter
    myWebView.getSettings().setUserAgentString("Mozilla/5.0 (Linux; U; Android 2.0; en-us; Droid Build/ESD20) AppleWebKit/530.17 (KHTML, like Gecko) Version/4.0 Mobile Safari/530.17");
    myWebView.setVerticalScrollBarEnabled(false);
    myWebView.loadUrl("file:///android_asset/HTML/index.html");

2 个答案:

答案 0 :(得分:1)

不确定为什么要使用这样的两个webView。

然而,一个解决方案是将 Javascript界面​​桥添加到 navWebView ,然后让将网址传回Java 然后Java可以通过 loadUrl 将其传递给第二个webView

JSInterface上的信息: http://developer.android.com/reference/android/webkit/WebView.html#addJavascriptInterface%28java.lang.Object,%20java.lang.String%29

答案 1 :(得分:-1)

通过此示例简化了工作: http://blog.objectgraph.com/index.php/2012/03/16/android-development-javascript-bridge-example-fully-explained/

JavaScriptHandler.java

public class JavaScriptHandler {
    MainActivity parentActivity;
    public JavaScriptHandler(MainActivity activity)  {
        parentActivity = activity;
    }
    public void setResultUrl(String url){
        this.parentActivity.javascriptCallUrl(url);
    }
}

MainActivity.java

// add line:
myNavbarView.addJavascriptInterface(new JavaScriptHandler(this), "MyHandler");

// Verwerk calls van navbar.html via JavaScriptHandler.java
public void javascriptCallUrl(final String url){
    Log.v(TAG, "MainActivity JSHandler used: " + url);
    // I need to run set operation of UI on the main thread.
    // therefore, the above parameter "url" must be final
    runOnUiThread(new Runnable() {
        public void run() {
           myWebView.loadUrl(url);
        }
    });
}

navbar.html

<a href="#" onclick="window.MyHandler.setResultUrl('file:///android_asset/HTML/index.html')">...</a>