What is a cheek press event? 啥是“脸颊触碰”事件？

• In the Android docs for a PopupWindow, the method setIgnoreCheekPress() is mentioned. It says that this method “Sets the flag on popup to ignore cheek press event; by default this flag is set to false which means the pop wont ignore cheek press dispatch events.”
• Quite simply, what is a cheek press dispatch event?

Answer:
- It’s the event dispatched when your cheek presses against the phone.
- Events have a size, the size is compared against a threshold to determine if it’s a “cheek”, e.g., if the size is bigger than some “it’s a finger” threshold. This allows phones to not react when someone has the phone up to their face and their cheek is pressing on the screen.
- Clarification from comment. The phone does not know you’ve specifically pressed with your cheek. It assumes you’re not rubbing up on it with other large (compared to a finger) body parts. Ew.

• 其实就是用面积比较大的皮肤触碰事件，常见于打电话脸贴着手机或者自拍鼻孔内部构造。