Java Reference
In-Depth Information
<item
android:drawable="@drawable/duke7"
an-
droid:duration="100" />
<item
android:drawable="@drawable/duke8"
an-
droid:duration="100" />
<item
android:drawable="@drawable/duke9"
an-
droid:duration="100" />
<item
android:drawable="@drawable/duke0"
an-
droid:duration="100" />
</animation-list>
Listing 12-6
presents the animation list of drawables that are connected to
dukeImage
via the
dukeImage.setBackgroundResource(R.drawable.duke_wave);
state-
ment.
Note
The
animation-list
element's
oneshot
attribute determines whether
theanimationwillcycleinaloop(whenthisattributeisassigned
"false"
)oroccur
only once (when it's assigned
"true"
). When
"true"
is assigned to
oneshot
,
youmustinvoke
AnimationDrawable()
's
stop()
methodbeforeits
start()
method to generate another oneshot animation sequence.
Nestedinsidethe
animation-list
elementisasequenceof
item
elements.Each
item
elementidentifiesonedrawableintheanimationsequenceviaits
drawable
at-
tribute.The
@drawable/duke
x
resourcereference(where
x
rangesfrom
0
through
9
)identifiesanimagefilewhosenamestartswith
duke
in
res
's
drawable
directory.
The
duration
attributeidentifiesthenumberofmillisecondsthatmustelapsebefore
the next
item
element's drawable is displayed.
Listing 12-7.
Describing the
Java7MeetAndroid
app
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/
res/android"
package="ca.tutortutor.j7ma"
android:versionCode="1"
android:versionName="1.0">
<application
android:label="@string/app_name"
an-
