Question

在我的项目中，我有一个文件：

"MyProject/assets/folder1/image1.jpg"
"MyProject/assets/folder1/index.html".

在webView中，我需要打开index.html（带图片）。

我尝试了这段代码：

String baseUrl = "file:///android_asset/folder1/";
webView.loadDataWithBaseURL(baseUrl, readFileAsString("index.html") , mimeType, "UTF-8", null);

但图片无法加载。

如果我将图片放入“资源”目录（MyProject/assets/）并正确加载baseUrl = "file:///android_asset"张图片;

如何从root资产目录加载图像，以及从assets/folder1加载图像？

Answer 1

试试这个

WebView webview = (WebView)this.findViewById(R.id.webview);


String html = "<html><head><title>TITLE!!!</title></head>";
html += "<body><h1>Image?</h1><img src=\"icon.png\" /></body></html>";


webview.loadDataWithBaseURL("file:///android_res/drawable/", html, "text/html", "UTF-8", null);

有关详细信息，请尝试此link

完美LoadDataWithBaseurl

Answer 2

我认为您必须将基础设置为资源并将子文件夹添加到图像src中，如下所示：

webView.loadDataWithBaseURL("file:///android_asset/", readAssetFileAsString("folder1/index.html"), "text/html", "UTF-8", null);

HTML： <img src="folder1/image1.jpg">

这适用于Android 5.1

private String readAssetFileAsString(String sourceHtmlLocation)
{
    InputStream is;
    try
    {
        is = getContext().getAssets().open(sourceHtmlLocation);
        int size = is.available();

        byte[] buffer = new byte[size];
        is.read(buffer);
        is.close();

        return new String(buffer, "UTF-8");
    }
    catch(IOException e)
    {
        e.printStackTrace();
    }

    return "";
}

Answer 3

尝试喜欢这个

try {
            String filePath = null;
            filePath = "Your File path";
            Bitmap bitmap = null;

            bitmap = BitmapFactory.decodeFile(filePath);
            Log.v("Image data-->", "" + bitmap);
            imageWidth = bitmap.getWidth();
            imageHeight = bitmap.getHeight();
            Log.e("Width", "" + imageWidth);
            filePath = "file://" + filePath;
            String html = "<html xmlns=\"http://www.w3.org/1999/xhtml\"><head><meta http-equiv=\"Content-Type\" content=\"text/html\";charset=utf-8\"/><title></title></head><body style=\"width:"
                    + imageWidth
                    + "px; height:"
                    + imageHeight
                    + "px; background:url("
                    + filePath
                    + ") no-repeat; position:relative;\">"
                    + getDivTag(mapList)
                    + "</body></html>";

            Log.v("MIS", "" + html);
            webview.getSettings().setSupportZoom(true);
            webview.loadDataWithBaseURL(null, html, "text/html", "utf-8", null);

            System.out.println(html);

        } catch (Exception e) {
            e.printStackTrace();
        }

Answer 4

您是否已获得互联网许可？

<uses-permission android:name="android.permission.INTERNET" />

Android webview loadDataWithBaseURL如何从资产加载图片？

4 个答案: