customize soft keyboard key preview

问题:

I am working on soft keyboard. I had done with all of my functionality.

But now i just need to change view of key preview when key is pressed. Currently my key preview is shown(default sample keyboard key preview) like shown in below image,

As we can see character 'd' is popped up when key is pressed.

But now i need customize it. As currently key preview background is white, i need it to set green color just like shown below,

I have the sample keyboard code, but couldn't find the place where it show a popout letter. So i can easily edit it customize it my own way.

I googled for help nothing found any help any. Any help is appreciated.

回答1:

Use something like this in your keys XML layout:

<Key android:codes="97" android:keyIcon="@drawable/key_icon" android:iconPreview="@drawable/key_preview_icon" /> 

It worked for me. I hope this helps you :)

回答2:

You may have created a android.inputmethodservice.KeyboardView.xml layout resource file

Use android:keyBackground="#FF419F3C"

<?xml version="1.0" encoding="utf-8"?>
<android.inputmethodservice.KeyboardView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="wrap_content"
    android:id="@+id/keyboard"
    android:labelTextSize="20dp"
    android:background="@color/colorTrybg"        
    android:keyTextColor="@color/colorTrykey"
              <!-- This one -->
    android:keyBackground="#FFFFFF"
    android:layout_alignParentBottom="true"
    android:keyPreviewLayout="@layout/preview">
</android.inputmethodservice.KeyboardView>