The following is the first few sections of a chapter from The Busy Coder's Guide to Android Development, plus headings for the remaining major sections, to give you an idea about the content of the chapter.
ViewPager is a fairly slick way to present a digital book. You can have
individual portions of the book be accessed by horizontal swiping, with the prose within a
portion accessed by scrolling vertically. While not offering “page-at-a-time”
models used by some book reader software, it is much simpler to set up.
So, that’s the approach we will use with EmPubLite. Which means, among other
things, that we need to add a
ViewPager to the app.
This is a continuation of the work we did in the previous tutorial.
Right now, the
main layout used by
EmPubLiteActivity just has a
TextView. We need
to change that to have our
ViewPager is not available for drag-and-drop through the IDE
graphical layout editors, even IDE users are going to have to dive into the layout XML this time.
res/layout/main.xml and switch to the Text sub-tab to see the raw XML.
Replace its contents with:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <io.karim.MaterialTabs android:id="@+id/tabs" android:layout_width="match_parent" android:layout_height="48dp" app:mtIndicatorColor="@color/colorAccent" app:mtSameWeightTabs="true"/> <android.support.v4.view.ViewPager android:id="@+id/pager" android:layout_width="match_parent" android:layout_height="match_parent"> </android.support.v4.view.ViewPager> </LinearLayout>
This adds our
ViewPager, underneath a
MaterialTabs, inside a
MaterialTabs is an implementation of tabs for a
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