\u7f51\u7ad9\u505aapp<\/a> })<\/p>\n .setNegativeButton(“\u53d6\u6d88”, null)<\/p>\n
.create();<\/p>\n
dialog.show();<\/p>\n
return true;<\/p>\n
}<\/p>\n
return false;<\/p>\n
}<\/p>\n
});<\/p>\n
“`<\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u4e2d\u7684onLongClick()\u65b9\u6cd5\u4f1a\u5728\u7528\u6237\u957f\u6309WebView\u4e2d\u7684\u5185\u5bb9\u65f6\u88ab\u89e6\u53d1\uff0c\u663e\u793a\u4e00\u4e2a\u5bf9\u8bdd\u6846\uff0c\u5176\u4e2d\u5217\u51fa\u4e86\u4e00\u4e9b\u5e38\u7528\u64cd\u4f5c\uff0c\u5982\u201c\u590d\u5236\u94fe\u63a5\u201d\u3002<\/p>\n
\u7b2c\u4e94\u6b65\uff1a\u5904\u7406\u7f51\u7ad9\u4e2d\u7684\u56fe\u7247\u7b49\u8d44\u6e90<\/p>\n
\u6709\u4e9b\u7f51\u7ad9\u4e2d\u53ef\u80fd\u4f1a\u5305\u542b\u4e00\u4e9b\u56fe\u7247\u3001\u89c6\u9891\u7b49\u8d44\u6e90\uff0c\u800cWebView\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5e76\u4e0d\u4f1a\u81ea\u52a8\u4e0b\u8f7d\u8fd9\u4e9b\u8d44\u6e90\uff0c\u9700\u8981\u6211\u4eec\u81ea\u5df1\u6765\u5904\u7406\u3002<\/p>\n
\u53ef\u4ee5\u4f7f\u7528WebViewClient\u4e2d\u7684onPageFinished()\u65b9\u6cd5\u6765\u83b7\u53d6\u7f51\u9875\u4e2d\u7684\u6240\u6709\u8d44\u6e90\uff0c\u5e76\u5c06\u5176\u4e0b\u8f7d\u5230\u672c\u5730\u5b58\u50a8\u4e2d\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
“`java<\/p>\n
webView.setWebViewClient(new WebViewClient() {<\/p>\n
@Override<\/p>\n
public void onPageFinished(WebView view, String url) {<\/p>\n
super.onPageFinished(view, url);<\/p>\n
new DownloadTask().execute(url); <\/p>\n
}<\/p>\n
});<\/p>\n
class DownloadTask extends AsyncTask {<\/p>\n
@Override<\/p>\n
protected Void doInBackground(String… urls) {<\/p>\n
try {<\/p>\n
String url = urls[0];<\/p>\n
Document doc = Jsoup.connect(url).get();<\/p>\n
Elements elements = doc.getElementsByTag(“img”);<\/p>\n
for (Element element : elements) {<\/p>\n
String imgUrl = element.absUrl(“src”);<\/p>\n
if (!imgUrl.startsWith(“http”)) {<\/p>\n
continue;<\/p>\n
}<\/p>\n
String fileName = Paths.get(imgUrl).getFileName().toString();<\/p>\n
File file = new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES), fileName);<\/p>\n
URLConnection conn = new URL(imgUrl).openConnection();<\/p>\n
InputStream in = conn.getInputStream();<\/p>\n
OutputStream out = new FileOutputStream(file);<\/p>\n
byte[] buffer = new byte[4096];<\/p>\n
int len;<\/p>\n
while ((len = in.read(buffer)) > 0) {<\/p>\n
out.write(buffer, 0, len);<\/p>\n
}<\/p>\n
out.close();<\/p>\n
in.close();<\/p>\n
}<\/p>\n
} catch (IOException e) {<\/p>\n
e.printStackTrace();<\/p>\n
}<\/p>\n
return null;<\/p>\n
}<\/p>\n
}<\/p>\n
“`<\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u4e2d\u4f7f\u7528\u4e86Jsoup\u5e93\u6765\u89e3\u6790\u7f51\u9875\u5185\u5bb9\uff0c\u83b7\u53d6\u5176\u4e2d\u7684\u6240\u6709
\u5143\u7d20\uff0c\u5e76\u4e0b\u8f7d\u5176\u4e2d\u7684\u56fe\u7247\u5230\u672c\u5730\u5b58\u50a8\u4e2d\u3002<\/p>\n
\u6700\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4e3aAPP\u6dfb\u52a0\u4e00\u4e9b\u5176\u4ed6\u7684\u529f\u80fd\uff0c\u5982\u5206\u4eab\u3001\u6536\u85cf\u3001\u8bbe\u7f6e\u7b49\u7b49\uff0c\u6765\u589e\u5f3aAPP\u7684\u53ef\u7528\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff0c\u5c06\u4e00\u4e2a\u7f51\u7ad9\u505a\u6210APP\u53ef\u4ee5\u901a\u8fc7WebView\u6765\u5b9e\u73b0\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u7cfb\u5217\u7684\u7f16\u7a0b\u64cd\u4f5c\uff0c\u5b9e\u73b0\u7f51\u7ad9\u5185\u5bb9\u7684\u52a0\u8f7d\u3001\u94fe\u63a5\u7684\u62e6\u622a\u3001\u4e0a\u4e0b\u6587\u83dc\u5355\u7684\u6dfb\u52a0\u3001\u8d44\u6e90\u7684\u4e0b\u8f7d\u7b49\u529f\u80fd\uff0c\u4ece\u800c\u8ba9\u7528\u6237\u53ef\u4ee5\u65b9\u4fbf\u5730\u5728APP\u4e2d\u6d4f\u89c8\u76ee\u6807\u7f51\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5c06\u4e00\u4e2a\u7f51\u7ad9\u505a\u6210APP\u53ef\u80fd\u6709\u591a\u79cd\u5b9e\u73b0\u65b9\u5f0f\uff0c\u4f46\u6700\u5e38\u89c1\u7684\u662f\u901a\u8fc7WebView\u5c06\u7f51\u7ad9\u5d4c\u5165APP\u4e2d\u3002WebView\u662fAndroid\u5f00\u53d1\u4e2d\u5e38\u7528\u7684\u63a7\u4ef6\uff0c\u53ef\u4ee5\u5728APP\u4e2d\u663e\u793a\u7f51\u9875\u5185\u5bb9\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684\u64cd\u4f5c\u63a5\u53e3\uff0c\u5982\u63a7<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[29150,20350,194,414,170],"topic":[],"class_list":["post-35516","post","type-post","status-publish","format-standard","hentry","category-kaifaapp","tag-htmlapp","tag-app","tag-194","tag-414","tag-170"],"_links":{"self":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/35516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/comments?post=35516"}],"version-history":[{"count":1,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/35516\/revisions"}],"predecessor-version":[{"id":35563,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/35516\/revisions\/35563"}],"wp:attachment":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/media?parent=35516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/categories?post=35516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/tags?post=35516"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/topic?post=35516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}