使用片段实例，您可以在搜索框EditText中更改字体大小和所需的内容.这就是您需要做的

Using fragment instance you can change the font size and whatever you want with the Search box EditText.. this is how you need to do

// placeAutocompleteFragment - is my PlaceAutocompleteFragment instance
((EditText)placeAutocompleteFragment.getView().findViewById(R.id.place_autocomplete_search_input)).setTextSize(10.0f);

更新时间:20/05/26

看起来像最新的SDK视图ID更改为R.id.places_autocomplete_search_input

Looks like in latest SDK view id is changed to R.id.places_autocomplete_search_input