Traditional Culture Encyclopedia - Photography and portraiture - Canon 700d touch screen has been set to autofocus. Why is the shutter button still not responding?

Canon 700d touch screen has been set to autofocus. Why is the shutter button still not responding?

If you use the display screen to view and compose a picture, you are shooting in real time. When shooting like this, you can't focus with a half shutter, but use the automatic exposure lock "*" above the handle and above the thumb to focus automatically. After focusing successfully, you can press the shutter to shoot.