HBuilder打包React單頁面,Android返回功能

 

 

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
    <title></title>
    <style>
        html,body {height:100%;}
        body {margin:0;}
        .wrapper {width:100%;height:100%;border:none;}
        button {position: fixed;right:10px;bottom:10px;}
    </style>
</head>
<body>    
    <iframe class="wrapper" src="http://3.m.weiyuekj.com/?source=webapp"></iframe>
    
    <script>
        document.addEventListener('plusready', function() {
            var webview = plus.webview.currentWebview();
            plus.key.addEventListener('backbutton', function() {
                webview.canBack(function(e) {
                    if(e.canBack) {
                      webview.back();
                    } else {
                        //webview.close(); //hide,quit
                        //plus.runtime.quit();
                        //首頁返回鍵處理
                        //處理邏輯:1秒內,連續兩次按返回鍵,則退出應用;
                        var first = null;
                        plus.key.addEventListener('backbutton', function() {
                            //首次按鍵,提示‘再按一次退出應用’
                            if (!first) {
                                first = new Date().getTime();
                                console.log('再按一次退出應用');
                                setTimeout(function() {
                                    first = null;
                                }, 1000);
                            } else {
                                if (new Date().getTime() - first < 1500) {
                                    plus.runtime.quit();
                                }
                            }
                        }, false);
                    }
                })
            });
        });
    </script>
</body>
</html>
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