hideKeyboard static method
void
hideKeyboard()
隐藏软键盘，具体可看：TextInputChannel
Implementation
static void hideKeyboard() {
SystemChannels.textInput.invokeMethod('TextInput.hide');
}
hideKeyboard static method
隐藏软键盘，具体可看：TextInputChannel
static void hideKeyboard() {
SystemChannels.textInput.invokeMethod('TextInput.hide');
}