Android custom keyboard Keyboardview key text color hollow Blur

is the custom keyboard in development experiencing text hollow?? Such as:

Workaround:

1. Set key text in the XML of key without Keylabel, and use Keyicon, that is, use the picture instead of the text, but this method is more stupid

2. The simplest thing to do is to set two properties in a Keyboardview:

Android:shadowcolor= "@color/c_white"
android:shadowradius= "0.0"

Shadowcolor setting is the same as the background color of your keys!!!

So the text of the key will be displayed very clear Ah!!

Android custom keyboard Keyboardview key text color hollow Blur