Appium solves the problem of not being able to input Chinese characters
Appium version 1.3.3 and above.
Java:
Add two settings in capabilities:
capabilities.setCapability("unicodeKeyboard", "True");
capabilities.setCapability("resetKeyboard", "True");
python is similar :
desired_caps["unicodeKeyboard"] = "True"
desired_caps["resetKeyboard"] = "True"