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POButton states with Background as AnimationDrawable in Android
primarykey
Id
5299219
data
AcceptedAnswerId
5300955
AnswerCount
2
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2011-03-14T13:30:23.227
FavoriteCount
7
LastActivityDate
2013-09-28T01:04:24.093
LastEditDate
LastEditorUserId
0
OwnerUserId
379865
ParentId
0
PostTypeId
1
Score
7
ViewCount
13764
LastEditorDisplayName
text
Body
I have made custom buttons in Android for a while. Things were simple, just made image resources for button states and made a selector for it. Everything went smooth and nice. Now I encountered a new situation. I have made a animation drawable and set it as a background for my button. <pre><code><animation-list xmlns:android="http://schemas.android.com/apk/res/android" android:oneshot="false"> <item android:drawable="@drawable/frame1" android:duration="600" /> <item android:drawable="@drawable/frame2" android:duration="300" /> <item android:drawable="@drawable/frame3" android:duration="500" /> </animation-list> </code></pre> If I set the animation as button's Background it works fine. If I try to make a simple selector <pre><code><?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_pressed="false" android:drawable="@drawable/animation" /> <item android:state_pressed="true" android:drawable="@drawable/pressed" /> </selector> </code></pre> where normal state of the button would have animation as background and the pressed state a static image, things don't work right. On my main activity, on onWindowFocus I get the button background and start the animation <pre><code> @Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus); btn = (Button)findViewById(R.id.btnAnim); btnAnimation = (AnimationDrawable) btnAnim.getBackground(); btnAnimation.start(); } </code></pre> Here appears to be the problem, because my animation won't be taken correctly from the selector and I get the following error: <pre><code>03-14 15:21:16.146: ERROR/AndroidRuntime(440): FATAL EXCEPTION: main 03-14 15:21:16.146: ERROR/AndroidRuntime(440): java.lang.ClassCastException: android.graphics.drawable.StateListDrawable 03-14 15:21:16.146: ERROR/AndroidRuntime(440): at com.bebenjoy.MainActivity.onWindowFocusChanged(MainActivity.java:53) 03-14 15:21:16.146: ERROR/AndroidRuntime(440): at ... </code></pre> Any idea on how to fix this ? Thanks.
Tags
<android><animation><button>
Title
Button states with Background as AnimationDrawable in Android
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PostAcceptedAnswerId
1. PO
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 PostTypePostTypeId
 PTAnswer
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1. PTQuestion
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1. USAlin
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1. PL
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2. PL
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 LTLinked
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PostsParentIdCreationDate
1. PO
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 PTAnswer
2. PO
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1. VO
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 POButton states with Background as AnimationDrawable in Android
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2. VO
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 POButton states with Background as AnimationDrawable in Android
 UserUserId
 USFaisal Abid
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 POButton states with Background as AnimationDrawable in Android
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 This table or related slice is empty.
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 VTUpMod
CommentsPostId
1. COcan u plz provide complete code for main activity
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 POButton states with Background as AnimationDrawable in Android
 UserUserId
 USSunil Pandey

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