{"id":3726,"date":"2023-08-15T14:52:39","date_gmt":"2023-08-15T06:52:39","guid":{"rendered":"https:\/\/www.zhidianwl.net\/zhidianwl\/?p=3726"},"modified":"2023-08-15T14:52:39","modified_gmt":"2023-08-15T06:52:39","slug":"app%e5%bc%80%e5%8f%91webview-%e6%96%b9%e5%bc%8f%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/www.zhidianwl.net\/zhidianwl\/2023\/08\/15\/app%e5%bc%80%e5%8f%91webview-%e6%96%b9%e5%bc%8f%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86%e4%bb%8b%e7%bb%8d\/","title":{"rendered":"app\u5f00\u53d1webview \u65b9\u5f0f\u57fa\u672c\u539f\u7406\u4ecb\u7ecd"},"content":{"rendered":"

\u968f\u7740\u79fb\u52a8\u4e92\u8054\u7f51\u7684\u53d1\u5c55\uff0c\u8d8a\u6765\u8d8a\u591a\u7684\u5e94\u7528\u91c7\u7528\u4e86\u57fa\u4e8eWeb\u6280\u672f\u5f00\u53d1\u7684\u65b9\u5f0f\uff0c\u901a\u8fc7Web\u9875\u9762\u6765\u5448\u73b0\u5185\u5bb9\uff0c\u63d0\u4f9b\u670d\u52a1\u3002\u800c\u57fa\u4e8eWeb\u9875\u9762\u6765\u63d0\u4f9b\u670d\u52a1\u7684\u5e94\u7528\uff0c\u6700\u5e38\u89c1\u7684\u65b9\u5f0f\u5c31\u662f\u901a\u8fc7WebView\u7ec4\u4ef6\u6765\u5b9e\u73b0\u3002<\/p>\n

\u4ec0\u4e48\u662fWebView?<\/p>\n

WebView\u662fAndroid\u7cfb\u7edf\u4e2d\u7684\u4e00\u4e2a\u52a0\u8f7d\u548c\u663e\u793aWeb\u9875\u9762\u7684\u7ec4\u4ef6\uff0c\u5b83\u662f\u57fa\u4e8eWebKit\u5f15\u64ce\u5b9e\u73b0\u7684\u3002\u901a\u8fc7WebView\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5e94\u7528\u4e2d\u4f7f\u7528Web\u9875\u9762\u6765\u5448\u73b0\u6570\u636e\uff0c\u63d0\u4f9b\u670d\u52a1\uff0c\u589e\u5f3a\u5e94\u7528\u529f\u80fd\u3002<\/p>\n

WebView\u7684\u4f7f\u7528<\/p>\n

\u9996\u5148\uff0c\u8981\u4f7f\u7528WebView\uff0c\u6211\u4eec\u9700\u8981\u5728xml\u5e03\u5c40\u6587\u4ef6\u4e2d\u52a0\u5165WebView\u7ec4\u4ef6\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

“`<\/p>\n<\/p>\n

android:id=”@+id\/webview”<\/p>\n

android:layout_width=”match_parent”<\/p>\n

android:layout_height=”match_parent”\/><\/p>\n

“`<\/p>\n

\u7136\u540e\uff0c\u5728\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6765\u52a0\u8f7dWeb\u9875\u9762\uff1a<\/p>\n

“`java<\/p>\n

WebView webView = (WebView) findViewById(R.id.webview);<\/p>\n

webView.loadUrl(“http:\/\/www.example.com”);<\/p>\n

“`<\/p>\n

WebView\u7684\u57fa\u672c\u8bbe\u7f6e<\/p>\n

\u5728\u52a0\u8f7dWeb\u9875\u9762\u65f6\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u5bf9WebView\u8fdb\u884c\u4e00\u4e9b\u57fa\u672c\u7684\u8bbe\u7f6e\uff0c\u6765\u4fdd\u8bc1\u7528\u6237\u4f53\u9a8c\u3002\u8fd9\u4e9b\u8bbe\u7f6e\u5305\u62ec\uff1a<\/p>\n

\u542f\u7528JavaScript\uff1a\u901a\u8fc7\u8bbe\u7f6esetJavaScriptEnabled()\u65b9\u6cd5\u6765\u542f\u7528JavaScript\u3002<\/p>\n

“`java<\/p>\n

webView.getSettings().setJavaScriptEnabled(true);<\/p>\n

“`<\/p>\n

\u542f\u7528\u7f29\u653e\uff1a\u901a\u8fc7\u8bbe\u7f6esetSupportZoom()\u65b9\u6cd5\u6765\u542f\u7528\u7f29\u653e\u3002<\/p>\n

“`java<\/p>\n

webView.getSettings().setSupportZoom(true);<\/p>\n

“`<\/p>\n

\u8bbe\u7f6e\u7f13\u5b58\uff1a\u901a\u8fc7\u8bbe\u7f6esetCacheMode()\u65b9\u6cd5\u6765\u8bbe\u7f6e\u7f13\u5b58\u6a21\u5f0f\u3002<\/p>\n

“`java<\/p>\n

webView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);<\/p>\n

“`<\/p>\n

\u8bbe\u7f6eUser-Agent\uff1a\u901a\u8fc7\u8bbe\u7f6esetUserAgentString()\u65b9\u6cd5\u6765\u8bbe\u7f6eUser-Agent\u3002<\/p>\n

“`java<\/p>\n

webView.getSettings().setUserAgentString(“my-user-agent”);<\/p>\n

“`<\/p>\n

WebView\u4e0eJavaScript\u7684\u4ea4\u4e92<\/p>\n

\u5728WebView\u52a0\u8f7dWeb\u9875\u9762\u65f6\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u4e0e\u9875\u9762\u4e2d\u7684JavaScript\u8fdb\u884c\u4ea4\u4e92\uff0c\u901a\u8fc7JavaScript\u6765\u8c03\u7528Android\u4ee3\u7801\u6216\u8005\u5c06Android\u7684\u6570\u636e\u4f20\u9012\u7ed9JavaScript\u3002\u901a\u5e38\uff0c\u6211\u4eec\u6709\u4ee5\u4e0b2\u79cd\u65b9\u5f0f\u6765\u5b9e\u73b0WebView\u4e0eJavaScript\u7684\u4ea4\u4e92\uff1a<\/p>\n

1. WebView\u7684addJavascriptInterface()\u65b9\u6cd5\uff1a\u901a\u8fc7\u8be5\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06Java\u5bf9\u8c61\u66b4\u9732\u7ed9JavaScript\uff0c\u4ece\u800cJavaScript\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u8be5\u5bf9\u8c61\u7684\u65b9\u6cd5\u6216\u5c5e\u6027\uff0c\u5b9e\u73b0WebView\u4e0eJavaScript\u7684\u4ea4\u4e92\u3002<\/p>\n

“`java<\/p>\n

public class MyJavaScriptInterface {<\/p>\n

@JavascriptInterface<\/p>\n

public void showAPP<\/a>Toast(String message) {<\/p>\n

Toast.makeText(mContext, message, Toast.LENGTH_SHORT).show();<\/p>\n

}<\/p>\n

}<\/p>\n

webView.addJavascriptInterface(new MyJavaScriptInterface(), “AndroidNative”);<\/p>\n

“`<\/p>\n

\u5728Web\u9875\u9762\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6765\u8c03\u7528Android\u4ee3\u7801\uff1a<\/p>\n

“`javascript<\/p>\n

AndroidNative.showToast(“Hello World”);<\/p>\n

“`<\/p>\n

2. WebViewClient\u7684shouldOverrideUrlLoading()\u65b9\u6cd5\uff1a\u901a\u8fc7\u8be5\u65b9\u6cd5\uff0c\u5728\u9875\u9762\u52a0\u8f7d\u65f6\u62e6\u622aURL\u8bf7\u6c42\uff0c\u4ece\u800c\u5b9e\u73b0JavaScript\u4e0eAndroid\u4ee3\u7801\u7684\u4ea4\u4e92\u3002<\/p>\n

“`java<\/p>\n

webView.setWebViewClient(new WebViewClient() {<\/p>\n

@Override<\/p>\n

public boolean shouldOverrideUrlLoading(WebView view, String url) {<\/p>\n

if (url.startsWith(“myapp:”)) {<\/p>\n

\/\/ \u5904\u7406\u81ea\u5b9a\u4e49\u534f\u8bae<\/p>\n

return true;<\/p>\n

}<\/p>\n

return super.shouldOverrideUrlLoading(view, url);<\/p>\n

}<\/p>\n

});<\/p>\n

“`<\/p>\n

\u5728Web\u9875\u9762\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6765\u8c03\u7528Android\u4ee3\u7801\uff1a<\/p>\n

“`javascript<\/p>\n

window.APP\u5f00\u53d1<\/a>location.href = “myapp:showToast?message=Hello%20World”;<\/p>\n

“`<\/p>\n

\u603b\u7ed3<\/p>\n

\u901a\u8fc7\u4e0a\u8ff0\u4ecb\u7ecd\uff0c\u6211\u4eec\u53ef\u4ee5\u4e86\u89e3\u5230WebView\u7684\u57fa\u672c\u539f\u7406\u3001\u4f7f\u7528\u65b9\u6cd5\u3001\u57fa\u672c\u8bbe\u7f6e\u4ee5<\/p>\n

<\/figure>\n<\/p>\n

\u53ca\u5b83\u4e0eJavaScript\u7684\u4ea4\u4e92\u65b9\u5f0f\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u6765\u4f7f\u7528WebView\uff0c\u5b9e\u73b0\u5404\u79cd\u529f\u80fd\uff0c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u968f\u7740\u79fb\u52a8\u4e92\u8054\u7f51\u7684\u53d1\u5c55\uff0c\u8d8a\u6765\u8d8a\u591a\u7684\u5e94\u7528\u91c7\u7528\u4e86\u57fa\u4e8eWeb\u6280\u672f\u5f00\u53d1\u7684\u65b9\u5f0f\uff0c\u901a\u8fc7Web\u9875\u9762\u6765\u5448\u73b0\u5185\u5bb9\uff0c\u63d0\u4f9b\u670d\u52a1\u3002\u800c\u57fa\u4e8eWeb\u9875\u9762\u6765\u63d0\u4f9b\u670d\u52a1\u7684\u5e94\u7528\uff0c\u6700\u5e38\u89c1\u7684\u65b9\u5f0f\u5c31\u662f\u901a\u8fc7WebView\u7ec4\u4ef6\u6765\u5b9e\u73b0\u3002\u4ec0\u4e48\u662fWebV<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[5343,41,160,7378,182],"topic":[],"class_list":["post-3726","post","type-post","status-publish","format-standard","hentry","category-kaifaapp","tag-android-","tag-41","tag-160","tag-app","tag-182"],"_links":{"self":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/3726","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\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/comments?post=3726"}],"version-history":[{"count":0,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/3726\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/media?parent=3726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/categories?post=3726"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/tags?post=3726"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/topic?post=3726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}