iOS 3D Touch简介

关于3D Touch

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3D Touch是一种立体触控技术，屏幕课适应不同的感压力度触控，苹果公司并于2015年宣布了3D Touch功能。

3D Touch的使用是需要硬件与系统的配合，iPhone 6s及以上机型（iPhone XR不支持3D Touch）iOS 9及以上系统，所以在开发app的时候切记要对于设备与系统进行判断。

3D Touch用法

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Apple对3D Touch用法给了三种官方用法，分别是：

• Quicky Action:
  Quick Actions let users do the things they do most often, faster and in fewer steps. Many of these actions can even be done with a single press, right from the Home screen.
  简单说就是快速打开app相对应的页面
• Peek and Pop:
  Let your users preview all kinds of content and even act on it — without having to actually open it. Users can then press a little deeper to Pop into content in your app.
  简单说就是用于预览的（朋友圈图片和聊天记录都有用到）
• Pressure Sensitivity:
  Creative apps can take advantage of the pressure-sensing display of iPhone 6s and iPhone 6s Plus in many ways. For example, they can vary line thickness or give a brush a changing style.
  这个用得最多就是画画啦，大力点颜色会深一点，个人感觉就和数位板很像了

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之后会陆续更新3D Touch前两种用法在app中是如何创建使用的，敬请留意

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