微信小程序：AtModal中的AtInput在IOS机型下无法焦点，即无法唤起键盘输入

**问题描述**
微信小程序中，AtModal组件内的AtInput无法输入，即无法唤起键盘输入，点击无响应

**期望行为**
点击input弹出键盘

**报错信息**
仅苹果真机有这种情况，IDE和安卓手机均正常

**系统信息**
Taro CLI 1.3.25 environment info:
System:
OS: macOS 10.15.3
Shell: 5.7.1 - /bin/zsh
Binaries:
Node: 12.16.1 - ~/.nvm/versions/node/v12.16.1/bin/node
Yarn: 1.12.3 - /usr/local/bin/yarn
npm: 6.13.4 - ~/.nvm/versions/node/v12.16.1/bin/npm
npmPackages:
@tarojs/cli: 1.3.25 => 1.3.25
@tarojs/components: 1.3.25 => 1.3.25
@tarojs/plugin-babel: 1.3.25 => 1.3.25
@tarojs/plugin-csso: 1.3.25 => 1.3.25
@tarojs/plugin-less: 1.3.25 => 1.3.25
@tarojs/plugin-uglifyjs: 1.3.25 => 1.3.25
@tarojs/router: 1.3.25 => 1.3.25
@tarojs/taro: 1.3.25 => 1.3.25
@tarojs/taro-alipay: 1.3.25 => 1.3.25
@tarojs/taro-h5: 1.3.25 => 1.3.25
@tarojs/taro-qq: 1.3.25 => 1.3.25
@tarojs/taro-quickapp: 1.3.25 => 1.3.25
@tarojs/taro-swan: 1.3.25 => 1.3.25
@tarojs/taro-tt: 1.3.25 => 1.3.25
@tarojs/taro-weapp: 1.3.25 => 1.3.25
@tarojs/webpack-runner: 1.3.25 => 1.3.25
eslint-config-taro: 1.3.25 => 1.3.25
eslint-plugin-taro: 1.3.25 => 1.3.25
nerv-devtools: ^1.5.0 => 1.5.6
nervjs: ^1.5.0 => 1.5.6
stylelint-config-taro-rn: 1.3.25 => 1.3.25
stylelint-taro-rn: 1.3.25 => 1.3.25

**截图**