showModalBottomSheet高度自适应_IOS

showModalBottomSheet高度自适应

关于showModalBottomSheet高度自适应

需求：
1.showModalBottomSheet根据内容大小高度自适应

2.超出最大高度（例如屏幕的三分之二）可以滑动

3.键盘弹出时自适应

  static showBottomPop(BuildContext context) {
    return showModalBottomSheet(
        context: context,
        isScrollControlled: true, //可滚动 解除showModalBottomSheet最大显示屏幕一半的限制
        shape: RoundedRectangleBorder(
          //圆角
          borderRadius: BorderRadius.vertical(top: Radius.circular(30.w)),
        ),
        builder: (BuildContext context) {
          return AnimatedPadding(
            //showModalBottomSheet 键盘弹出时自适应
            padding: MediaQuery.of(context).viewInsets, //边距（必要）
            duration: const Duration(milliseconds: 100), //时常 （必要）
            child: Container(
              // height: 180,
              constraints: BoxConstraints(
                minHeight: 90.w, //设置最小高度（必要）
                maxHeight: MediaQuery.of(context).size.height / 1.5, //设置最大高度（必要）
              ),
              padding: EdgeInsets.only(top: 34.w, bottom: 48.w),
              decoration: BoxDecoration(borderRadius: BorderRadius.vertical(top: Radius.circular(30.w)), color: Colors.white), //圆角
              child: ListView(
                shrinkWrap: true, //防止状态溢出 自适应大小
                children: <Widget>[
                  Column(
                    mainAxisSize: MainAxisSize.min,
                    mainAxisAlignment: MainAxisAlignment.start,
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: <Widget>[
                      //widget组件
                    ],
                  )
                ],
              ),
            ),
          );
        });
  }