【报Bug】plus 5+ keyboardchange 在 android 下不起作用

示例代码：

        doc.addEventListener('keyboardchange', function(e) {  
            var height = e.height; // 键盘高度  
                JX.log('keyboardchange', 'ios 键盘显示 高度：' + height)  
            if (height > 0) {  
                keyboardIsOpen = true;  
                keyboardHeight = height;  
                settings.keyboardHeight = keyboardHeight;  
                app.setSettings(settings); //更新一下键盘高度  
            } else {  
                JX.log('keyboardchange', 'ios 键盘隐藏')  
                keyboardIsOpen = false  
            }  
        }, false);

操作步骤：

        doc.addEventListener('keyboardchange', function(e) {  
            var height = e.height; // 键盘高度  
                JX.log('keyboardchange', 'ios 键盘显示 高度：' + height)  
            if (height > 0) {  
                keyboardIsOpen = true;  
                keyboardHeight = height;  
                settings.keyboardHeight = keyboardHeight;  
                app.setSettings(settings); //更新一下键盘高度  
            } else {  
                JX.log('keyboardchange', 'ios 键盘隐藏')  
                keyboardIsOpen = false  
            }  
        }, false);

预期结果：

监听软键盘的显示与隐藏

实际结果：

android 不起作用