diff --git a/examples/layer.html b/examples/layer.html
index ab878860..20a3e144 100644
--- a/examples/layer.html
+++ b/examples/layer.html
@@ -24,6 +24,7 @@
   <button class="layui-btn" lay-on="test7">Prompt</button>
   <button class="layui-btn" lay-on="test8">Tab</button>
   <button class="layui-btn" lay-on="test9">Photo</button>
+  <button class="layui-btn" lay-on="test10">Drawer</button>
   <button class="layui-btn" lay-on="testTime">自动关闭</button>
   <a href="https://layui.dev/docs/2.8/layer/" target="_blank" class="layui-btn">更多例子</a>
 </div>
@@ -215,6 +216,19 @@ layui.use(['layer', 'util'], function(layer, util){
         }
       });
     }
+    ,test10: function(){
+      layer.open({
+        title:'drawer',
+        type: 1,
+        offset: 'b',
+        anim: 'slideUp', // 从下往上
+        area: ['100%', '160px'],
+        shade: 0.1,
+        shadeClose: true,
+        content: $('#test11111'),
+        maxmin: true,
+      });
+    }
   });
   
   // 相册层
diff --git a/src/modules/carousel.js b/src/modules/carousel.js
index e58637f7..4bfbf840 100644
--- a/src/modules/carousel.js
+++ b/src/modules/carousel.js
@@ -299,12 +299,12 @@ layui.define(['jquery', 'lay'], function(exports){
       }, 50);  
     }
     
-    // 移除过度类
+    // 移除过渡类
     setTimeout(function(){
       elemItem.removeClass(THIS + ' ' + ELEM_PREV + ' ' + ELEM_NEXT + ' ' + ELEM_LEFT + ' ' + ELEM_RIGHT);
       elemItem.eq(options.index).addClass(THIS);
       that.haveSlide = false; // 解锁
-    }, 300);
+    }, 350);
     
     // 指示器焦点
     that.elemInd.find('li').eq(options.index).addClass(THIS)
diff --git a/src/modules/form.js b/src/modules/form.js
index dfb10324..d7705c2f 100644
--- a/src/modules/form.js
+++ b/src/modules/form.js
@@ -174,6 +174,48 @@ layui.define(['lay', 'layer', 'util'], function(exports){
         // 初始化全局的 autocomplete
         options.autocomplete && inputs.attr('autocomplete', options.autocomplete);
 
+        var handleInputNumberEvents = function(elem, eventType){
+          var that = this;
+          var rawValue = elem.val();
+          var value = Number(rawValue);
+          var step = Number(elem.attr('step')) || 1; // 加减的数字间隔
+          var min = Number(elem.attr('min'));
+          var max = Number(elem.attr('max'));
+          var precision = Number(elem.attr('lay-precision'));
+          var noAction = eventType === 'blur' && rawValue === '' // 失焦时空值不作处理
+
+          if(isNaN(value)) return; // 若非数字，则不作处理
+
+          if(eventType === 'click'){
+            var isDecrement = !!$(that).index() // 0: icon-up, 1: icon-down
+            value = isDecrement ? value - step : value + step;
+          }
+
+          // 获取小数点后位数
+          var decimals = function(step){
+            var decimals = (step.toString().match(/\.(\d+$)/) || [])[1] || '';
+            return decimals.length;
+          };
+
+          precision = precision >= 0 ? precision : Math.max(decimals(step), decimals(rawValue));
+
+          if(!noAction){
+            if(value <= min) value = min;
+            if(value >= max) value = max;
+            if(precision) value = value.toFixed(precision);
+  
+            elem.val(value) 
+          }
+
+          // 更新按钮状态
+          var controlBtn = {
+            increment: elem.next().find('.layui-icon-up'),
+            decrement: elem.next().find('.layui-icon-down')
+          }
+          controlBtn.increment[(value >= max && !noAction) ? 'addClass' : 'removeClass'](DISABLED)
+          controlBtn.decrement[(value <= min && !noAction) ? 'addClass' : 'removeClass'](DISABLED)
+        }
+
         // 初始化输入框动态点缀
         elemForm.find('input[lay-affix],textarea[lay-affix]').each(function(){
           var othis = $(this);
@@ -248,6 +290,11 @@ layui.define(['lay', 'layer', 'util'], function(exports){
               var value = this.value;
               opts.show === 'auto' && showAffix(elemAffix, value);
             });
+
+            // 失去焦点事件
+            othis.on('blur', function(){
+              typeof opts.blur === 'function' && opts.blur.call(this, othis, opts);
+            });
             
             // 点击动态后缀事件
             elemIcon.on('click', function(){
@@ -295,35 +342,11 @@ layui.define(['lay', 'layer', 'util'], function(exports){
               className: 'layui-input-number',
               disabled: othis.is('[disabled]'), // 跟随输入框禁用状态
               click: function(elem){
-                var index = $(this).index();
-                var value = elem.val();
-                var rawValue = value;
-                var step = Number(elem.attr('step')) || 1; // 加减的数字间隔
-                var min = Number(elem.attr('min'));
-                var max = Number(elem.attr('max'));
-
-                if(isNaN(value)) return; // 若非数字，则不作处理
-
-                value = Number(value);
-                value = index ? value - step : value + step;
-
-                // min max
-                if(value < min) value = min;
-                if(value > max) value = max;
-
-                // 获取小数点后位数
-                var decimals = function(step){
-                  var decimals = (step.toString().match(/\.(\d+$)/) || [])[1] || '';
-                  return decimals.length;
-                };
-
-                // 位数比较
-                var fixed = Math.max(decimals(step), decimals(rawValue));
-
-                if(fixed) value = value.toFixed(fixed);
-
-                elem.val(value);
-              }
+                handleInputNumberEvents.call(this, elem, 'click')
+              },
+              blur: function(elem){
+                handleInputNumberEvents.call(this, elem, 'blur')
+              },
             }
           };
           
diff --git a/src/modules/layer.js b/src/modules/layer.js
index fe2aab1f..322192b1 100644
--- a/src/modules/layer.js
+++ b/src/modules/layer.js
@@ -1719,6 +1719,23 @@ layer.photos = function(options, loop, key){
 ready.run = function(_$){
   $ = _$;
   win = $(window);
+  
+  // 移动端兼容性处理
+  // https://gitee.com/layui/layui/issues/I81WGC
+  // https://github.com/jquery/jquery/issues/1729
+  var agent = navigator.userAgent.toLowerCase();
+  var isMobile = /android|iphone|ipod|ipad|ios/.test(agent)
+  var _win = $(window);
+  if(isMobile){
+    $.each({Height: "height", Width: "width"}, function(propSuffix, funcName){
+      var propName = 'inner' + propSuffix;
+      win[funcName] = function(){
+        return propName in window 
+          ? window[propName]
+          : _win[funcName]()
+      }
+    })
+  }
   doms.html = $('html');
   layer.open = function(deliver){
     var o = new Class(deliver);