include view @BindView 无效

原因解析：

include 引入了一个布局
如果想拿到这个布局中的某个id对应的控件，应当这样拿

// 获取到这个布局
 View view = LayoutInflater.from(context).inflate(R.layout.view_custom_textview,this);
// 获取某个id对应的控件
View view = view.findviewbyid(R.id.custom_textview_image);

解决方案：(类似viewhold)

// 关键是 ButterKnife.bind(this,view);

public class KapCustomTextView extends FrameLayout {
    @BindView(R.id.custom_textview_image)
    ImageView imageView;
    @BindView(R.id.custom_textview_edittext)
    EditText editText;
    public KapCustomTextView(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        View view = LayoutInflater.from(context).inflate(R.layout.view_custom_textview,this);
        ButterKnife.bind(this,view);
    }

    public ImageView getImageView() {
        return imageView;
    }

    public EditText getEditText() {
        return editText;
    }
}