{"id":6176,"date":"2023-10-07T17:25:35","date_gmt":"2023-10-07T09:25:35","guid":{"rendered":"https:\/\/www.yimenyun.cn\/emen\/?p=6176"},"modified":"2023-10-07T17:25:35","modified_gmt":"2023-10-07T09:25:35","slug":"android-%e4%b8%8eh5%e4%ba%a4%e4%ba%92%e6%80%8e%e4%b9%88%e5%ae%9e%e7%8e%b0%e7%9a%84%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/www.yimenyun.cn\/emen\/6176\/","title":{"rendered":"android \u4e0eh5\u4ea4\u4e92\u600e\u4e48\u5b9e\u73b0\u7684\uff1f"},"content":{"rendered":"<p>\u5728\u79fb\u52a8\u5e94\u7528\u5f00\u53d1\u4e2d\uff0cAndroid\u4e0eH5\u4ea4\u4e92\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6280\u672f\u624b\u6bb5\uff0c\u5b83\u80fd\u591f\u8ba9\u5e94\u7528\u7a0b\u5e8f\u548c\u7f51\u9875\u4e4b\u95f4\u5b9e\u73b0\u6570\u636e\u548c\u529f\u80fd\u7684\u5171\u4eab\uff0c\u589e\u5f3a\u4e86\u5e94\u7528\u7a0b\u5e8f\u7684\u4ea4\u4e92\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002\u672c\u6587\u5c06\u4ecb\u7ecdAndroid\u4e0eH5\u4ea4\u4e92\u7684\u539f\u7406\u548c\u8be6\u7ec6\u5b9e\u73b0\u65b9\u6cd5\u3002<\/p>\n<p>\u4e00\u3001\u539f\u7406<\/p>\n<p>Android\u4e0eH5\u4ea4\u4e92\u7684\u539f\u7406\u662f\u901a\u8fc7WebView\u7ec4\u4ef6\u5b9e\u73b0\u7684\u3002WebView\u662fAndroid\u63d0\u4f9b\u7684\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u53ef\u4ee5\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5d4c\u5165\u7f51\u9875\uff0c\u4f7f\u5f97\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u7f51\u9875\u4e2d\u7684JavaScript\u4ee3\u7801\uff0c\u540c\u65f6\u4e5f\u53ef\u4ee5\u8ba9\u7f51\u9875\u8c03\u7528\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684Java\u4ee3\u7801\u3002\u8fd9\u79cd\u4ea4\u4e92\u65b9\u5f0f\u53ef\u4ee5\u8ba9\u5e94\u7528\u7a0b\u5e8f\u548c\u7f51\u9875\u4e4b\u95f4\u5b9e\u73b0\u6570\u636e\u548c\u529f\u80fd\u7684\u5171\u4eab\uff0c\u4ece\u800c\u589e\u5f3a\u7528\u6237\u7684\u4f53\u9a8c\u3002<\/p>\n<p>\u4e8c\u3001\u5b9e\u73b0\u65b9\u6cd5<\/p>\n<p>1. Android\u8c03\u7528H5<\/p>\n<p>Android\u8c03\u7528H5\u7684\u65b9\u5f0f\u6709\u4e24\u79cd\uff1a\u901a\u8fc7WebView\u7684loadUrl()\u65b9\u6cd5\u548cevaluateJavascript()\u65b9\u6cd5\u3002<\/p>\n<p>\uff081\uff09loadUrl()\u65b9\u6cd5<\/p>\n<p>loadUrl()\u65b9\u6cd5\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u7f51\u9875\u4e2d\u7684JavaScript\u4ee3\u7801\uff0c\u5b9e\u73b0\u6570\u636e\u548c\u529f\u80fd\u7684\u4f20\u9012\u3002\u6bd4\u5982\uff0cAndroid\u7a0b\u5e8f\u4e2d\u9700\u8981\u5c06\u6570\u636e\u4f20\u9012\u7ed9H5\u9875\u9762\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>&#8220;`<\/p>\n<p>webView.loadUrl(&#8220;javascript:showData(&#8216;Hello World!&#8217;)&#8221;);<\/p>\n<p>&#8220;`<\/p>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cshowData()\u662fH5\u9875\u9762\u4e2d\u7684\u4e00\u4e2aJavaScript\u51fd\u6570\uff0c\u5b83\u7684\u53c2\u6570\u662fAndroid\u7a0b\u5e8f\u4f20\u9012\u8fc7\u6765\u7684\u6570\u636e\u3002<\/p>\n<p>\uff082\uff09evaluateJavascript()\u65b9\u6cd5<\/p>\n<p>evaluateJavascript()\u65b9\u6cd5\u53ef\u4ee5\u5728Android\u7a0b\u5e8f\u4e2d\u6267\u884cH5\u9875\u9762\u4e2d\u7684JavaScript\u4ee3\u7801\uff0c\u5e76\u83b7\u53d6\u6267\u884c\u7ed3\u679c\u3002\u6bd4\u5982\uff0cAndroid\u7a0b\u5e8f\u9700\u8981\u83b7\u53d6H5\u9875\u9762\u4e2d\u7684\u67d0\u4e2a\u5143\u7d20\u7684\u503c\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>&#8220;`<\/p>\n<p>webView.evaluateJavascript(&#8220;document.getElementById(&#8216;elementId&#8217;).value&#8221;, new ValueCallback() {<\/p>\n<p><p>    @Override<\/p>\n<p>    public void onReceiveValue(String value) {<\/p>\n<p>        \/\/value\u5373\u4e3a\u83b7\u53d6\u5230\u7684\u5143\u7d20\u503c<\/p>\n<p>    }<\/p>\n<p>});<\/p>\n<p>&#8220;`<\/p>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cdocument.getElementById(&#8216;elementId&#8217;).value\u662fH5\u9875\u9762\u4e2d\u83b7\u53d6\u5143\u7d20\u503c\u7684JavaScript\u4ee3\u7801\uff0c\u901a\u8fc7ValueCallback\u56de\u8c03\u65b9\u6cd5\u53ef<\/p>\n<p><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/i.yimenyun.net\/2023-03\/15\/14\/00916203335.jpg\" \/><\/figure>\n<\/p>\n<p>\u4ee5\u83b7\u53d6\u5230\u6267\u884c\u7ed3\u679c\u3002<\/p>\n<p>2. H5\u8c03\u7528Android<\/p>\n<p>H5\u8c03\u7528Android\u7684\u65b9\u5f0f\u6709\u4e24\u79cd\uff1a\u901a\u8fc7WebView\u7684addJavascriptInterface()\u65b9\u6cd5\u548cshouldOverrideUrlLoading()\u65b9\u6cd5\u3002<\/p>\n<p>\uff081\uff09addJavascriptInterface()\u65b9\u6cd5<\/p>\n<p>addJavascriptInterface()\u65b9\u6cd5\u53ef\u4ee5\u5728H5\u9875\u9762\u4e2d\u76f4\u63a5\u8c03\u7528Android\u7a0b\u5e8f\u4e2d\u7684Java\u4ee3\u7801\u3002\u6bd4\u5982\uff0cAndroid\u7a0b\u5e8f\u4e2d\u9700\u8981\u63d0\u4f9b\u4e00\u4e2aJava\u65b9\u6cd5\u7ed9H5\u9875\u9762\u8c03\u7528\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>&#8220;`<\/p>\n<p>webView.addJavascriptInterface(new Object() {<\/p>\n<p>    @JavascriptInterface<\/p>\n<p>    public void showToast(String message) {<\/p>\n<p>        Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show();<\/p>\n<p>    }<\/p>\n<p>}, &#8220;android&#8221;);<\/p>\n<p>&#8220;`<\/p>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cshowToast()\u662fAndroid\u7a0b\u5e8f\u4e2d\u7684\u4e00\u4e2aJava\u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u5f39\u51fa\u4e00\u4e2aToast\u63d0\u793a\uff0c@JavascriptInterface\u6ce8\u89e3\u8868\u793a\u8be5\u65b9\u6cd5\u53ef\u4ee5\u5728H5\u9875\u9762\u4e2d\u88ab\u8c03\u7528\uff0candro<a href=\"https:\/\/www.yimenapp.cn\/fengzhuang-3822.html\">app\u5f00\u53d1\u5e73\u53f0<\/a>id\u662fH5\u9875\u9762\u4e2d\u8c03\u7528Java\u65b9\u6cd5\u7684\u5bf9\u8c61\u540d\u3002<\/p>\n<p>\u5728H5\u9875\u9762\u4e2d\u8c03\u7528\u8be5Java\u65b9\u6cd5\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>&#8220;`<\/p>\n<p>android.showToast(&#8220;Hello World!&#8221;);<\/p>\n<p>&#8220;`<\/p>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0candroid\u662f\u5728addJavascriptInterface()\u65b9\u6cd5\u4e2d\u5b9a\u4e49\u7684\u5bf9\u8c61\u540d\uff0cshowToast()\u662f\u5728Android\u7a0b\u5e8f\u4e2d\u5b9a\u4e49\u7684Java\u65b9\u6cd5\u540d\uff0c&#8221;<a href=\"https:\/\/www.yimenapp.cn\/fengzhuang-130.html\">\u7f51\u7ad9\u8f6c\u6362\u6210app<\/a>Hello World!&#8221;\u662f\u4f20\u9012\u7ed9Java\u65b9\u6cd5\u7684\u53c2\u6570\u3002<\/p>\n<p>\uff082\uff09shouldOverrideUrlLoading()\u65b9\u6cd5<\/p>\n<p>shouldOverrideUrlLoading()\u65b9\u6cd5\u53ef\u4ee5\u5728H5\u9875\u9762\u4e2d\u901a\u8fc7URL\u65b9\u5f0f\u8c03\u7528Android\u7a0b\u5e8f\u4e2d\u7684Java\u4ee3\u7801\u3002\u6bd4\u5982\uff0cAndroid\u7a0b\u5e8f\u4e2d\u9700\u8981\u63d0\u4f9b\u4e00\u4e2aJava\u65b9\u6cd5\u7ed9H5\u9875\u9762\u8c03\u7528\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>&#8220;`<\/p>\n<p>webView.setWebViewClient(new WebViewClient() {<\/p>\n<p>    @Override<\/p>\n<p>    public boolean shouldOverrideUrlLoading(WebView view, String url) {<\/p>\n<p>        if (url.startsWith(&#8220;android:\/\/showToast\/&#8221;)) {<\/p>\n<p>            String message = url.substring(&#8220;android:\/\/showToast\/&#8221;.length());<\/p>\n<p>            Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show();<\/p>\n<p>            return true;<\/p>\n<p>        }<\/p>\n<p>        return super.shouldOverrideUrlLoading(view, url);<\/p>\n<p>    }<\/p>\n<p>});<\/p>\n<p>&#8220;`<\/p>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cshouldOverrideUrlLoading()\u65b9\u6cd5\u4e2d\u901a\u8fc7\u5224\u65adURL\u7684\u524d\u7f00\u6765\u786e\u5b9a\u8c03\u7528\u7684Java\u65b9\u6cd5\uff0candroid:\/\/showToast\/\u662fURL\u7684\u524d\u7f00\uff0cshowToast()\u662fAndroid\u7a0b\u5e8f\u4e2d\u5b9a\u4e49\u7684Java\u65b9\u6cd5\u540d\uff0cmessage\u662fURL\u4e2d\u4f20\u9012\u7684\u53c2\u6570\u3002<\/p>\n<p>\u5728H5\u9875\u9762\u4e2d\u8c03\u7528\u8be5Java\u65b9\u6cd5\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0bURL\uff1a<\/p>\n<p>&#8220;`<\/p>\n<p>android:\/\/showToast\/Hello World!<\/p>\n<p>&#8220;`<\/p>\n<p>\u4e0a\u8ff0URL\u4e2d\uff0candroid:\/\/showToast\/\u662fURL\u7684\u524d\u7f00\uff0cshowToast()\u662fAndroid\u7a0b\u5e8f\u4e2d\u5b9a\u4e49\u7684Java\u65b9\u6cd5\u540d\uff0c&#8221;Hello World!&#8221;\u662f\u4f20\u9012\u7ed9Java\u65b9\u6cd5\u7684\u53c2\u6570\u3002<\/p>\n<p>\u4e09\u3001\u603b\u7ed3<\/p>\n<p>Android\u4e0eH5\u4ea4\u4e92\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6280\u672f\u624b\u6bb5\uff0c\u5b83\u901a\u8fc7WebView\u7ec4\u4ef6\u5b9e\u73b0\u6570\u636e\u548c\u529f\u80fd\u7684\u5171\u4eab\uff0c\u589e\u5f3a\u4e86\u5e94\u7528\u7a0b\u5e8f\u7684\u4ea4\u4e92\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002Android\u8c03\u7528H5\u548cH5\u8c03\u7528Android\u7684\u65b9\u5f0f\u5206\u522b\u6709\u4e24\u79cd\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u9002\u5408\u7684\u65b9\u5f0f\u5b9e\u73b0\u4ea4\u4e92\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u79fb\u52a8\u5e94\u7528\u5f00\u53d1\u4e2d\uff0cAndroid\u4e0eH5\u4ea4\u4e92\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6280\u672f\u624b\u6bb5\uff0c\u5b83\u80fd\u591f\u8ba9\u5e94\u7528\u7a0b\u5e8f\u548c\u7f51\u9875\u4e4b\u95f4\u5b9e\u73b0\u6570\u636e\u548c\u529f\u80fd\u7684\u5171\u4eab\uff0c\u589e\u5f3a\u4e86\u5e94\u7528\u7a0b\u5e8f\u7684\u4ea4\u4e92\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002\u672c\u6587\u5c06\u4ecb\u7ecdAndroid\u4e0eH5\u4ea4\u4e92\u7684\u539f\u7406\u548c\u8be6\u7ec6\u5b9e\u73b0\u65b9<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[11294,29,11293,2271,361],"topic":[],"class_list":["post-6176","post","type-post","status-publish","format-standard","hentry","category-appkf","tag-h5_to_app","tag-29","tag-app","tag-2271","tag-361"],"_links":{"self":[{"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/posts\/6176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/comments?post=6176"}],"version-history":[{"count":0,"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/posts\/6176\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/media?parent=6176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/categories?post=6176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/tags?post=6176"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.yimenyun.cn\/emen\/wp-json\/wp\/v2\/topic?post=6176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}