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POApp shutdown when testing on AVD
primarykey
Id
8011021
data
AcceptedAnswerId
0
AnswerCount
3
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2011-11-04T14:45:55.213
FavoriteCount
0
LastActivityDate
2011-11-05T11:32:42.240
LastEditDate
2011-11-04T19:11:11.757
LastEditorUserId
1025691
OwnerUserId
1025691
ParentId
0
PostTypeId
1
Score
0
ViewCount
125
LastEditorDisplayName
text
Body
i'm trying to learn Android and i'm doing a simple exercise involving two buttons and a textview. However when I try to run the app in the emaulator, the app is forced to shutdown. Below is the code: <pre><code>public class CambiarColorActivity extends Activity implements View.OnClickListener { Button btnRed; Button btnBlue; TextView text; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); TextView text = (TextView)findViewById(R.id.textView1); btnRed=(Button)findViewById(R.id.button1); btnBlue=(Button)findViewById(R.id.button2); btnRed.setOnClickListener(this); btnBlue.setOnClickListener(this); } public void onClick(View view) { changeColor(); } private void changeColor() { if(btnRed.isPressed()) { text.setBackgroundResource(Color.RED); } else { text.setBackgroundResource(Color.BLUE); } } } </code></pre> And these are the errors I found in the log in Eclipse: <pre><code>11-04 11:34:42.377: E/AndroidRuntime(376): Caused by: java.lang.NullPointerException 11-04 11:34:42.377: E/AndroidRuntime(376): at mi.entrenamiento.OrejanoX.CambiarColorActivity.onCreate(CambiarColorActivity.java:25) </code></pre> Here is my part of my main.xml <pre><code><LinearLayout android:id="@+id/linearLayout1" android:layout_width="match_parent" android:layout_height="wrap_content" > <Button android:id="@+id/button1" style="@style/red" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:drawableLeft="@drawable/red" android:text="@string/red" /> <Button android:id="@+id/button2" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:drawableLeft="@drawable/blue" android:text="@string/azul" /> </LinearLayout> </code></pre> Any help will be welcome. Thanks and Regards, Mauro.
Tags
<android><nullpointerexception><runtime-error>
Title
App shutdown when testing on AVD
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USOrejano
UserOwnerUserId
1. USOrejano
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
3. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

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