要加载在一个网页视图保存的HTML？ [英] From where to load a saved HTML in a WebView?

问题描述

我想，我的的WebView 加载我操纵的HTML将被保存在/klw.html。后来我与 mWebView.loadUrl加载（文件：///android_asset/klw.html）;
但是，当我尝试在模拟器中它说：网页不可用。哪里是我的错吗？我必须从另一个目录加载它？

下面是我的code：

 公共类Stundenplan延伸活动{    字符串URL =htt​​p://info.tam.ch/display/timetable_external.php?school=klw&sem=54&class=26&week=16;
    文档文件;    公共无效的主要（字符串参数... args）{
        尝试{
            文件= Jsoup.connect（URL）获得（）;
        }
        赶上（IOException异常五）{
            e.printStackTrace（）;
        }
        元素头= document.head（）;
        head.append（＆LT;链接相对= \\样式\\的href = \\klw.css \\＆gt;中）;
        串的html = document.html（）;        字符串charset = Jsoup.connect（URL）.response（）字符集（）。
        // ...
        尝试{
            作家作家=新的PrintWriter（/ klw.html，字符集）;
            writer.write（HTML）;
            writer.close（）;
        }
        赶上（IOException异常五）{
            e.printStackTrace（）;
        }
    }    @覆盖
    公共无效的onCreate（捆绑savedInstanceState）{
        主要（）;
        的WebView mWebView;
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.main）;
        mWebView =（的WebView）findViewById（R.id.webView）;
        mWebView.setWebViewClient（新WebViewClient（））;
        mWebView.getSettings（）setDomStorageEnabled（真）。
        。mWebView.getSettings（）setSupportZoom（真）;
        mWebView.loadUrl（文件：///android_asset/klw.html）;
    }
}
 

解决方案

你有没有＆LT;使用许可权的android：NAME =android.permission.WRITE_EXTERNAL_STORAG​​E/＆GT; ，以确保该文件正在写的？

你有＆LT;使用许可权的android：NAME =android.permission.INTERNET对＆GT; 来确保该URI检索未检索为NULL然后保存为一个空白HTML？

I want that my WebView load my manipulated HTML which will be saved in /klw.html. Afterwards I load it with mWebView.loadUrl("file:///android_asset/klw.html"); But when I try it in the emulator it says: "Webpage not available". Where is my fault? Do I have to load it from another directory?

Here is my code:

public class Stundenplan extends Activity {

    String url = "http://info.tam.ch/display/timetable_external.php?school=klw&sem=54&class=26&week=16";
    Document document;

    public void main(String... args){
        try {
            document = Jsoup.connect(url).get();
        }
        catch (IOException e) {
            e.printStackTrace();
        }
        Element head = document.head();
        head.append("<link rel=\"stylesheet\" href=\"klw.css\">");
        String html = document.html();

        String charset = Jsoup.connect(url).response().charset();
        // ...
        try {
            Writer writer = new PrintWriter("/klw.html", charset);
            writer.write(html);
            writer.close();
        }
        catch (IOException e) {
            e.printStackTrace();
        } 
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        main();
        WebView mWebView;
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mWebView = (WebView) findViewById(R.id.webView);
        mWebView.setWebViewClient(new WebViewClient());
        mWebView.getSettings().setDomStorageEnabled(true);
        mWebView.getSettings().setSupportZoom(true);
        mWebView.loadUrl("file:///android_asset/klw.html");
    }
}

解决方案

do you have the <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> to make sure the file is being written?

do you have the <uses-permission android:name="android.permission.INTERNET"> to make sure that the URI being retrieved is not being retrieved as NULL then saving as a blank html?

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