点击事件-HBuilder

            //处理点击事件，需要打开原生浏览器
            mui('body').on('tap', 'a', function(e) {
                var href = this.getAttribute('href');
                if (href) {
                    if (window.plus) {
                        plus.runtime.openURL(href);
                    } else {
                        location.href = href;
                    }
                }
            });

            var qrcodeEl = document.getElementById("qrcode");
            qrcodeEl.addEventListener('longtap', function() {
                plus.nativeUI.actionSheet({
                    cancel: '取消',
                    buttons: [{
                        title: '保存到相册'
                    }]
                }, function(e) {
                    var index = e.index;
                    if (e.index === 1) {
                        plus.gallery.save(qrcodeEl.src, function() {
                            mui.toast('保存成功');
                        }, function() {
                            mui.toast('保存失败，请重试！');
                        });
                    }
                });
            });