I frequently employ this strategy, as long as it's places I go to often. I have a gallery of pics in my phone labeled 'Shenzhen Taxi'. Occasionally I need to embellish with a street name then get the nod of acknowledgement from the driver. DiDi is useful also, but in SZ I can usually grab a taxi much quicker than calling up a DiDi car, which can take around 10 minutes. DiDi drivers will call my number about 50% of the time, I find the younger drivers can detect that I'm using the English version of DiDi and will send messages instead of calling.

In addition to having pics, I will frequently use Baidu map app if I know the location, but not necessarily the name of where I am going. I show the taxi driver where using the app. Sometimes they even take my phone and use the navigation. Google maps app just doesn't work in this case. Yes some of the street names and info is in Chinese, but drivers are used to Baidu maps look and feel. Google maps is foreign to them.