使用 webview 显示来自 sdcard 的图像不起作用

发布于 2024-12-18 00:47:28 字数 1188 浏览 0 评论 0原文

我已经在 sdcard 根目录中下载了 map750.png 文件，但是当我尝试在带有一些文本的 Web 视图中显示它时，只显示文本。你能帮我找出代码中的错误吗？谢谢。

setContentView(R.layout.webview);
    mWebView = (WebView) findViewById(R.id.webview);
    mWebView.getSettings().setAllowFileAccess(true);
    mWebView.getSettings().setJavaScriptEnabled(true);
    mWebView.getSettings().setBuiltInZoomControls(true);
    String html = "<html><head></head><body><p>hello</p><img src=\"file://mnt/sdcard/map750.png\" alt=\"alternativo\" /></body></html>";
    mWebView.loadData(html, "text/html","utf-8");

我编辑帖子以添加 oneilse14 建议的解决方案，谢谢！

setContentView(R.layout.webview);
    mWebView = (WebView) findViewById(R.id.webview);
    mWebView.getSettings().setAllowFileAccess(true);
    mWebView.getSettings().setJavaScriptEnabled(true);
    mWebView.getSettings().setBuiltInZoomControls(true);
    String html = "<html><head></head><body><p>hello</p><img src=\"file://mnt/sdcard/map750.png\" alt=\"alternativo\" /></body></html>";
    mWebView.loadDataWithBaseURL("", html, "text/html", "utf-8", "");

原文

I have downloaded map750.png file in the root of sdcard, but when I try to show it within a webview with some text, only the text is shown. Could you help me to find what is wrong in the code? thanks.

setContentView(R.layout.webview);
    mWebView = (WebView) findViewById(R.id.webview);
    mWebView.getSettings().setAllowFileAccess(true);
    mWebView.getSettings().setJavaScriptEnabled(true);
    mWebView.getSettings().setBuiltInZoomControls(true);
    String html = "<html><head></head><body><p>hello</p><img src=\"file://mnt/sdcard/map750.png\" alt=\"alternativo\" /></body></html>";
    mWebView.loadData(html, "text/html","utf-8");

I edit the post to add the solution suggested by oneilse14, thanks!!

setContentView(R.layout.webview);
    mWebView = (WebView) findViewById(R.id.webview);
    mWebView.getSettings().setAllowFileAccess(true);
    mWebView.getSettings().setJavaScriptEnabled(true);
    mWebView.getSettings().setBuiltInZoomControls(true);
    String html = "<html><head></head><body><p>hello</p><img src=\"file://mnt/sdcard/map750.png\" alt=\"alternativo\" /></body></html>";
    mWebView.loadDataWithBaseURL("", html, "text/html", "utf-8", "");

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

不如归去 2024-12-25 00:47:28

试试这个，

        final String fileName = "file:///mnt/sdcard/1.jpg";
        final String mimeType = "text/html";
        final String encoding = "utf-8";
        final String html = "<img src=\""+fileName+"\">";
        webView.loadDataWithBaseURL("", html, mimeType, encoding, "");

Try this,

        final String fileName = "file:///mnt/sdcard/1.jpg";
        final String mimeType = "text/html";
        final String encoding = "utf-8";
        final String html = "<img src=\""+fileName+"\">";
        webView.loadDataWithBaseURL("", html, mimeType, encoding, "");

回复收藏 0 原文