Develop Reference

Android Activity: ClassNotFoundException

my android app was running fine until I added some classes and edited the manifest file.
Now, when I try to run or debug the app on my android emulator with android 2.2, the app crashes and I get a ClassNotFoundException as follows:
D/AndroidRuntime( 275): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
D/AndroidRuntime( 275): CheckJNI is ON
D/AndroidRuntime( 275): --- registering native functions ---
I/ActivityManager( 59): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=de.bastian.gpstracker/.MainActivity }
I/ActivityManager( 59): Start proc de.bastian.gpstracker for activity de.bastian.gpstracker/.MainActivity: pid=281 uid=10036 gids={}
D/AndroidRuntime( 275): Shutting down VM
D/jdwp ( 275): adbd disconnected
D/AndroidRuntime( 281): Shutting down VM
W/dalvikvm( 281): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
E/AndroidRuntime( 281): FATAL EXCEPTION: main
E/AndroidRuntime( 281): java.lang.RuntimeException: Unable to instantiate application de.bastian.gpstracker: java.lang.ClassNotFoundException: de.bastian.gpstracker in loader dalvik.system.PathClassLoader[/data/app/de.bastian.gpstracker-1.apk]
E/AndroidRuntime( 281): at android.app.ActivityThread$PackageInfo.makeApplication(ActivityThread.java:649)
E/AndroidRuntime( 281): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4232)
E/AndroidRuntime( 281): at android.app.ActivityThread.access$3000(ActivityThread.java:125)
E/AndroidRuntime( 281): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2071)
E/AndroidRuntime( 281): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 281): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 281): at android.app.ActivityThread.main(ActivityThread.java:4627)
E/AndroidRuntime( 281): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 281): at java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime( 281): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
E/AndroidRuntime( 281): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
E/AndroidRuntime( 281): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 281): Caused by: java.lang.ClassNotFoundException: de.bastian.gpstracker in loader dalvik.system.PathClassLoader[/data/app/de.bastian.gpstracker-1.apk]
E/AndroidRuntime( 281): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
E/AndroidRuntime( 281): at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
E/AndroidRuntime( 281): at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
E/AndroidRuntime( 281): at android.app.Instrumentation.newApplication(Instrumentation.java:942)
E/AndroidRuntime( 281): at android.app.ActivityThread$PackageInfo.makeApplication(ActivityThread.java:644)
E/AndroidRuntime( 281): ... 11 more
W/ActivityManager( 59): Force finishing activity de.bastian.gpstracker/.MainActivity
D/dalvikvm( 149): GC_FOR_MALLOC freed 4092 objects / 248904 bytes in 134ms
W/ActivityManager( 59): Activity pause timeout for HistoryRecord{43fa91d0 de.bastian.gpstracker/.MainActivity}
I/ActivityManager( 59): Displayed activity com.android.launcher/com.android.launcher2.Launcher: 12561 ms (total 12561 ms)
W/ActivityManager( 59): Activity destroy timeout for HistoryRecord{43fa91d0 de.bastian.gpstracker/.MainActivity}
D/KeyguardViewMediator( 59): pokeWakelock(5000)
D/KeyguardViewMediator( 59): pokeWakelock(5000)
I/ARMAssembler( 59): generated scanline__00000177:03515104_00001001_00000000 [ 91 ipp] (114 ins) at [0x325a10:0x325bd8] in 590637 ns
I/ARMAssembler( 59): generated scanline__00000077:03515104_00000000_00000000 [ 33 ipp] (47 ins) at [0x3261f0:0x3262ac] in 261841 ns
W/WindowManager( 59): No window to dispatch pointer action 1
I/Process ( 281): Sending signal. PID: 281 SIG: 9
I/ActivityManager( 59): Process de.bastian.gpstracker (pid 281) has died.
I guess it's something wrong with my project configuration. Here is my manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="de.bastian.gpstracker"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="10" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme"
android:name="de.bastian.gpstracker" >
<activity
android:name="de.bastian.gpstracker.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
To be honest, I do not remember the last changes I made to this file, but, to me, everything seems to be fine here.
While searching for a sultion, I also came along the link Android Activity ClassNotFoundException - tried everything, which describes the same problem, but has a solution no applicable to my case as I am only working with a single project.
In the error log above, I noticed that the file name of the apk created ends on a '-1'. Maybe that's an error, maybe that's simply how eclipse/adt handles things. Also, I noticed that, when I try to run/debug the project, multiple class files with names MainActivity.class, MainActivity$1.class, MainActivity$2.class are created, although I only have a single MainActivity.java file (and no MainActivity$2.file or anything like that).
It would be great if someone had an idea of what's going wrong here.

You are setting the application node to reference a nonexistent class
de.bastian.gpstracker
Refers to the package name, no class whatsoever. Since gpstracker is the last thing in that string, the class loader assumes that gpstracker is a class, tries to load it and fails.
So write the name of the Application class (which extends Application).
Eg
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme"
android:name="de.bastian.gpstracker.MyApplicationClass" >
If you don't have a class that extends Application, then take out the android:name attribute for this node so it looks just like:
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >

Change your application tag in manifest to this:
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="de.bastian.gpstracker.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Remove the name attribute from the application tag.
It, misleadingly, does not have anything to do with the name of your app and is actually the name of an extra class to load before loading your application. That's why you are getting the ClassNotFoundException. Remove it and it should work:

LibGDX on Netbeans and Android

I am trying to run my application that uses LibGDX on Andriod using the NetBeans IDE.
However the game crashes for some reason, I just got the "This application have stopped to work" message when I try to run the application. Everything works great on PC, so apparently I have missed something in the andriod set up. Setting up an andriod project on NetBeans is not an documented area and things seem to be different on Eclipse.
If someone have manged to run LibGDX on andriod by setting up the project in Netbeans, please share the steps you did.
Some code, I doubt that would help through:
public class Game extends AndroidApplication {
public void onCreate (android.os.Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initialize((ApplicationListener) new game.GameSystem(new Size2i(100, 100)), false);
}
}
The debug output I get is the following:
D/dalvikvm( 478): Trying to load lib /data/data/com.RPGGame/lib/libgdx.so 0x40515708
D/dalvikvm( 478): Added shared lib /data/data/com.RPGGame/lib/libgdx.so 0x40515708
D/dalvikvm( 478): No JNI_OnLoad found in /data/data/com.RPGGame/lib/libgdx.so 0x40515708, skipping init
D/AndroidRuntime( 478): Shutting down VM
W/dalvikvm( 478): threadid=1: thread exiting with uncaught exception (group=0x40015560)
E/AndroidRuntime( 478): FATAL EXCEPTION: main
E/AndroidRuntime( 478): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.RPGGame/com.RPGGame.MainActivity}: java.lang.ClassCastException: game.GameSystem
E/AndroidRuntime( 478): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
E/AndroidRuntime( 478): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
E/AndroidRuntime( 478): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
E/AndroidRuntime( 478): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
E/AndroidRuntime( 478): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 478): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 478): at android.app.ActivityThread.main(ActivityThread.java:3683)
E/AndroidRuntime( 478): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 478): at java.lang.reflect.Method.invoke(Method.java:507)
E/AndroidRuntime( 478): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
E/AndroidRuntime( 478): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
E/AndroidRuntime( 478): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 478): Caused by: java.lang.ClassCastException: game.GameSystem
E/AndroidRuntime( 478): at com.RPGGame.MainActivity.onCreate(MainActivity.java:11)
E/AndroidRuntime( 478): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
E/AndroidRuntime( 478): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
E/AndroidRuntime( 478): ... 11 more
W/ActivityManager( 104): Force finishing activity com.RPGGame/.MainActivity
W/ActivityManager( 104): Activity pause timeout for HistoryRecord{40512238 com.RPGGame/.MainActivity}
D/dalvikvm( 408): GC_EXPLICIT freed 8K, 54% free 2537K/5511K, external 1625K/2137K, paused 102ms
W/ActivityManager( 104): Activity destroy timeout for HistoryRecord{40512238 com.RPGGame/.MainActivity}
D/dalvikvm( 420): GC_EXPLICIT freed 324K, 55% free 2532K/5511K, external 1625K/2137K, paused 183ms
D/dalvikvm( 322): GC_EXPLICIT freed 9K, 55% free 2589K/5703K, external 1625K/2137K, paused 72ms
So basically I cannot cast game.GameSystem to ApplicationListener. Even if GameSystem implements ApplicationListener.
GameSystem works as intended on PC, all I did for the Andriod project was to put that code in the main file.

Okay, I solved it now, turned out I used the wrong version of game.GameSystem.

ListView not getting displayed?

I have a activity which uses a listview element as follows
public class List1 extends Activity
{
Context context=this;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.listview);
try{
//DB
final SQLiteDatabase db;
db = openOrCreateDatabase(
"Secret.db"
, SQLiteDatabase.CREATE_IF_NECESSARY
, null
);
db.setVersion(1);
db.setLocale(Locale.getDefault());
db.setLockingEnabled(true);
Cursor cur = db.query("tbl_user",null,null,null,null,null,null);
//DB Over
ListView listView = (ListView) findViewById(R.id.mylist);
listView.setTextFilterEnabled(true);
final String[] values = new String[50];
int i=0;
while(cur.moveToNext())
{
values[i]=Integer.toString(cur.getInt(0))+":"+cur.getString(1)+":"+cur.getString(2);
i++;
}
cur.close();
ArrayAdapter<String> adapter = new ArrayAdapter<String>(context,R.layout.list_item,values);
listView.setAdapter(adapter);
listView.setVisibility(0);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position,long id)
//public void onItemClick(ListView<?> listview, View view, int position,long id)
{
try
{
Intent i=new Intent(List1.this,Form1.class);
i.putExtra("uid","85");
startActivity(i);
finish();
}
catch(Exception e)
{
String insert2="insert into login values("+"\""+e.toString()+"\""+");";
db.execSQL(insert2);
}
}
});
db.close();
//required
}
catch(Exception e)
{
Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();}
}
}
This is my listview.xml file
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ListView
android:id="#+id/mylist"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
</ListView>
</RelativeLayout>
This is my list_item.xml file which has the required textview
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/tv1"
android:padding="10dp"
android:background="#drawable/textview1"
style="#style/textview_text"
android:textSize="16dp">
</TextView>
But the ListView is not working. I mean after coming to this activity the app is showing error showing "APP_NAME is stopped unexpectedly". The same code works for one or two times and then shows the above error continuously after that. May I kno why is it happening?
EDIT
This is logcat file
W/dalvikvm( 2694): threadid=3: thread exiting with uncaught exception (group=0x4
001b188)
E/AndroidRuntime( 2694): Uncaught handler: thread main exiting due to uncaught e
xception
E/AndroidRuntime( 2694): java.lang.NullPointerException
E/AndroidRuntime( 2694): at android.widget.ArrayAdapter.createViewFromRes
ource(ArrayAdapter.java:355)
E/AndroidRuntime( 2694): at android.widget.ArrayAdapter.getView(ArrayAdap
ter.java:323)
E/AndroidRuntime( 2694): at android.widget.AbsListView.obtainView(AbsList
View.java:1274)
E/AndroidRuntime( 2694): at android.widget.ListView.makeAndAddView(ListVi
ew.java:1668)
E/AndroidRuntime( 2694): at android.widget.ListView.fillDown(ListView.jav
a:637)
E/AndroidRuntime( 2694): at android.widget.ListView.fillFromTop(ListView.
java:694)
E/AndroidRuntime( 2694): at android.widget.ListView.layoutChildren(ListVi
ew.java:1521)
E/AndroidRuntime( 2694): at android.widget.AbsListView.onLayout(AbsListVi
ew.java:1113)
E/AndroidRuntime( 2694): at android.view.View.layout(View.java:6830)
E/AndroidRuntime( 2694): at android.widget.RelativeLayout.onLayout(Relati
veLayout.java:900)
E/AndroidRuntime( 2694): at android.view.View.layout(View.java:6830)
E/AndroidRuntime( 2694): at android.widget.FrameLayout.onLayout(FrameLayo
ut.java:333)
E/AndroidRuntime( 2694): at android.view.View.layout(View.java:6830)
E/AndroidRuntime( 2694): at android.widget.LinearLayout.setChildFrame(Lin
earLayout.java:1119)
E/AndroidRuntime( 2694): at android.widget.LinearLayout.layoutVertical(Li
nearLayout.java:998)
E/AndroidRuntime( 2694): at android.widget.LinearLayout.onLayout(LinearLa
yout.java:918)
E/AndroidRuntime( 2694): at android.view.View.layout(View.java:6830)
E/AndroidRuntime( 2694): at android.widget.FrameLayout.onLayout(FrameLayo
ut.java:333)
E/AndroidRuntime( 2694): at android.view.View.layout(View.java:6830)
E/AndroidRuntime( 2694): at android.view.ViewRoot.performTraversals(ViewR
oot.java:996)
E/AndroidRuntime( 2694): at android.view.ViewRoot.handleMessage(ViewRoot.
java:1633)
E/AndroidRuntime( 2694): at android.os.Handler.dispatchMessage(Handler.ja
va:99)
E/AndroidRuntime( 2694): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 2694): at android.app.ActivityThread.main(ActivityThrea
d.java:4363)
E/AndroidRuntime( 2694): at java.lang.reflect.Method.invokeNative(Native
Method)
E/AndroidRuntime( 2694): at java.lang.reflect.Method.invoke(Method.java:5
21)
E/AndroidRuntime( 2694): at com.android.internal.os.ZygoteInit$MethodAndA
rgsCaller.run(ZygoteInit.java:860)
E/AndroidRuntime( 2694): at com.android.internal.os.ZygoteInit.main(Zygot
eInit.java:618)
E/AndroidRuntime( 2694): at dalvik.system.NativeStart.main(Native Method)
D/dalvikvm( 2694): GC freed 6621 objects / 343272 bytes in 126ms
I/dalvikvm( 2694): Uncaught exception thrown by finalizer (will be discarded):
I/dalvikvm( 2694): Ljava/lang/IllegalStateException;: Finalizing cursor android.
database.sqlite.SQLiteCursor#44c60cd0 on login that has not been deactivated or
closed
I/dalvikvm( 2694): at android.database.sqlite.SQLiteCursor.finalize(SQLiteC
ursor.java:596)
I/dalvikvm( 2694): at dalvik.system.NativeStart.run(Native Method)
I/dalvikvm( 2694): Uncaught exception thrown by finalizer (will be discarded):
I/dalvikvm( 2694): Ljava/lang/IllegalStateException;: Finalizing cursor android.
database.sqlite.SQLiteCursor#44c58028 on login that has not been deactivated or
closed
I/dalvikvm( 2694): at android.database.sqlite.SQLiteCursor.finalize(SQLiteC
ursor.java:596)
I/dalvikvm( 2694): at dalvik.system.NativeStart.run(Native Method)
I/dalvikvm( 2694): Uncaught exception thrown by finalizer (will be discarded):
I/dalvikvm( 2694): Ljava/lang/IllegalStateException;: Finalizing cursor android.
database.sqlite.SQLiteCursor#44c37fa0 on login that has not been deactivated or
closed
I/dalvikvm( 2694): at android.database.sqlite.SQLiteCursor.finalize(SQLiteC
ursor.java:596)
I/dalvikvm( 2694): at dalvik.system.NativeStart.run(Native Method)
I/Process ( 52): Sending signal. PID: 2694 SIG: 3
I/dalvikvm( 2694): threadid=7: reacting to signal 3
I/dalvikvm( 2694): Wrote stack trace to '/data/anr/traces.txt'
I/Process ( 2694): Sending signal. PID: 2694 SIG: 9
I/ActivityManager( 52): Process com.notification (pid 2694) has died.
I/WindowManager( 52): WIN DEATH: Window{44d90538 com.notification/com.notifica
tion.List1 paused=false}
I/UsageStats( 52): Unexpected resume of com.android.launcher while already res
umed in com.notification
W/InputManagerService( 52): Window already focused, ignoring focus gain of: co
m.android.internal.view.IInputMethodClient$Stub$Proxy#44d933c8
I/ActivityManager( 52): Start proc com.notification for broadcast com.notifica
tion/.AlarmReceiver: pid=2706 uid=10034 gids={3003}
D/ddm-heap( 2706): Got feature list request
D/dalvikvm( 1152): GC freed 194 objects / 8728 bytes in 88ms
I/ActivityManager( 52): Starting activity: Intent { act=android.intent.action.
MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.notification/
.NotificationActivity }
I/ActivityManager( 52): Starting activity: Intent { cmp=com.notification/.Back
ground }
I/ActivityManager( 52): Displayed activity com.notification/.Background: 262 m
s (total 8081 ms)
D/dalvikvm( 234): GC freed 44 objects / 2064 bytes in 134ms
D/AndroidRuntime( 2718):
D/AndroidRuntime( 2718): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
D/AndroidRuntime( 2718): CheckJNI is ON
D/AndroidRuntime( 2718): --- registering native functions ---
D/ddm-heap( 2718): Got feature list request
D/PackageParser( 52): Scanning package: /data/app/vmdl67950.tmp
I/PackageManager( 52): Removing non-system package:com.notification
D/PackageManager( 52): Removing package com.notification
D/PackageManager( 52): Services: com.notification.BackService
D/PackageManager( 52): Receivers: com.notification.AlarmReceiver
D/PackageManager( 52): Activities: com.notification.NotificationActivity com
.notification.Form1 com.notification.Background com.notification.Bg com.notifica
tion.List1
W/InputManagerService( 52): Window already focused, ignoring focus gain of: co
m.android.internal.view.IInputMethodClient$Stub$Proxy#44eb1868
D/PackageManager( 52): Scanning package com.notification
I/PackageManager( 52): /data/app/vmdl67950.tmp changed; unpacking
D/installd( 32): DexInv: --- BEGIN '/data/app/vmdl67950.tmp' ---
D/dalvikvm( 2724): DexOpt: load 40ms, verify 159ms, opt 2ms
D/installd( 32): DexInv: --- END '/data/app/vmdl67950.tmp' (success) ---
D/PackageManager( 52): Services: com.notification.BackService
D/PackageManager( 52): Receivers: com.notification.AlarmReceiver
D/PackageManager( 52): Activities: com.notification.NotificationActivity com
.notification.Form1 com.notification.Background com.notification.Bg com.notifica
tion.List1
D/ActivityManager( 52): Uninstalling process com.notification
D/ActivityManager( 52): Force removing process ProcessRecord{44e9eb48 2706:com
.notification/10034} (com.notification/10034)
I/Process ( 52): Sending signal. PID: 2706 SIG: 9
D/ActivityManager( 52): Received spurious death notification for thread androi
d.os.BinderProxy#44eec8b8
I/installd( 32): move /data/dalvik-cache/data#app#vmdl67950.tmp#classes.dex ->
/data/dalvik-cache/data#app#com.notification.apk#classes.dex
D/PackageManager( 52): New package installed in /data/app/com.notification.apk
D/AndroidRuntime( 2718): Shutting down VM
D/dalvikvm( 2718): DestroyJavaVM waiting for non-daemon threads to exit
D/dalvikvm( 2718): DestroyJavaVM shutting VM down
D/dalvikvm( 2718): HeapWorker thread shutting down
D/dalvikvm( 2718): HeapWorker thread has shut down
D/jdwp ( 2718): JDWP shutting down net...
I/dalvikvm( 2718): Debugger has detached; object registry had 1 entries
D/dalvikvm( 2718): VM cleaning up
D/dalvikvm( 2718): LinearAlloc 0x0 used 623916 of 5242880 (11%)
D/ActivityManager( 52): Uninstalling process com.notification
I/dalvikvm( 2718): JNI: AttachCurrentThread (from ???.???)
E/AndroidRuntime( 2718): ERROR: thread attach failed
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
700e5
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
20031
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
20030
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
50000
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
60000
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
60001
D/dalvikvm( 1152): GC freed 139 objects / 5928 bytes in 230ms
D/dalvikvm( 52): GC freed 14606 objects / 863536 bytes in 259ms
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
700e5
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
20031
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
20030
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
50000
D/dalvikvm( 52): GC freed 425 objects / 17320 bytes in 275ms
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
60000
W/ResourceType( 52): Resources don't contain package for resource number 0x7f0
60001
D/AndroidRuntime( 2729):
D/AndroidRuntime( 2729): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
D/AndroidRuntime( 2729): CheckJNI is ON
D/AndroidRuntime( 2729): --- registering native functions ---
D/ddm-heap( 2729): Got feature list request
I/ActivityManager( 52): Starting activity: Intent { act=android.intent.action.
MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.notification/
.NotificationActivity }
I/ActivityManager( 52): Start proc com.notification for activity com.notificat
ion/.NotificationActivity: pid=2735 uid=10034 gids={3003}
D/AndroidRuntime( 2729): Shutting down VM
D/dalvikvm( 2729): DestroyJavaVM waiting for non-daemon threads to exit
D/dalvikvm( 2729): DestroyJavaVM shutting VM down
D/dalvikvm( 2729): HeapWorker thread shutting down
D/dalvikvm( 2729): HeapWorker thread has shut down
D/jdwp ( 2729): JDWP shutting down net...
I/dalvikvm( 2729): Debugger has detached; object registry had 1 entries
D/dalvikvm( 2729): VM cleaning up
E/AndroidRuntime( 2729): ERROR: thread attach failed
D/dalvikvm( 2729): LinearAlloc 0x0 used 639500 of 5242880 (12%)
D/dalvikvm( 30): GC freed 299 objects / 11576 bytes in 264ms
D/ddm-heap( 2735): Got feature list request
D/dalvikvm( 30): GC freed 57 objects / 2432 bytes in 160ms
D/dalvikvm( 30): GC freed 2 objects / 48 bytes in 360ms
I/ActivityManager( 52): Displayed activity com.notification/.NotificationActiv
ity: 1204 ms (total 1204 ms)
W/KeyCharacterMap( 2735): No keyboard for id 0
W/KeyCharacterMap( 2735): Using default keymap: /system/usr/keychars/qwerty.kcm.
bin
I/ActivityManager( 52): Starting activity: Intent { cmp=com.notification/.Bg (
has extras) }
I/ActivityManager( 52): Displayed activity com.notification/.Bg: 329 ms (total
329 ms)
D/dalvikvm( 1152): GC freed 2454 objects / 141000 bytes in 600ms
I/ActivityManager( 52): Starting activity: Intent { cmp=com.notification/.List
1 bnds=[0,152][480,248] }
W/ActivityManager( 52): startActivity called from non-Activity context; forcin
g Intent.FLAG_ACTIVITY_NEW_TASK for: Intent { cmp=com.notification/.List1 bnds=[
0,152][480,248] }
D/AndroidRuntime( 2735): Shutting down VM
W/dalvikvm( 2735): threadid=3: thread exiting with uncaught exception (group=0x4
001b188)
E/AndroidRuntime( 2735): Uncaught handler: thread main exiting due to uncaught e
xception
E/AndroidRuntime( 2735): java.lang.NullPointerException
E/AndroidRuntime( 2735): at android.widget.ArrayAdapter.createViewFromRes
ource(ArrayAdapter.java:355)
E/AndroidRuntime( 2735): at android.widget.ArrayAdapter.getView(ArrayAdap
ter.java:323)
E/AndroidRuntime( 2735): at android.widget.AbsListView.obtainView(AbsList
View.java:1256)
E/AndroidRuntime( 2735): at android.widget.ListView.measureHeightOfChildr
en(ListView.java:1147)
E/AndroidRuntime( 2735): at android.widget.ListView.onMeasure(ListView.ja
va:1060)
E/AndroidRuntime( 2735): at android.view.View.measure(View.java:7964)
E/AndroidRuntime( 2735): at android.widget.RelativeLayout.measureChild(Re
lativeLayout.java:554)
E/AndroidRuntime( 2735): at android.widget.RelativeLayout.onMeasure(Relat
iveLayout.java:377)
E/AndroidRuntime( 2735): at android.view.View.measure(View.java:7964)
E/AndroidRuntime( 2735): at android.view.ViewGroup.measureChildWithMargin
s(ViewGroup.java:3023)
E/AndroidRuntime( 2735): at android.widget.FrameLayout.onMeasure(FrameLay
out.java:245)
E/AndroidRuntime( 2735): at android.view.View.measure(View.java:7964)
E/AndroidRuntime( 2735): at android.widget.LinearLayout.measureVertical(L
inearLayout.java:464)
E/AndroidRuntime( 2735): at android.widget.LinearLayout.onMeasure(LinearL
ayout.java:278)
E/AndroidRuntime( 2735): at android.view.View.measure(View.java:7964)
E/AndroidRuntime( 2735): at android.view.ViewGroup.measureChildWithMargin
s(ViewGroup.java:3023)
E/AndroidRuntime( 2735): at android.widget.FrameLayout.onMeasure(FrameLay
out.java:245)
E/AndroidRuntime( 2735): at android.view.View.measure(View.java:7964)
E/AndroidRuntime( 2735): at android.view.ViewRoot.performTraversals(ViewR
oot.java:763)
E/AndroidRuntime( 2735): at android.view.ViewRoot.handleMessage(ViewRoot.
java:1633)
E/AndroidRuntime( 2735): at android.os.Handler.dispatchMessage(Handler.ja
va:99)
E/AndroidRuntime( 2735): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 2735): at android.app.ActivityThread.main(ActivityThrea
d.java:4363)
E/AndroidRuntime( 2735): at java.lang.reflect.Method.invokeNative(Native
Method)
E/AndroidRuntime( 2735): at java.lang.reflect.Method.invoke(Method.java:5
21)
E/AndroidRuntime( 2735): at com.android.internal.os.ZygoteInit$MethodAndA
rgsCaller.run(ZygoteInit.java:860)
E/AndroidRuntime( 2735): at com.android.internal.os.ZygoteInit.main(Zygot
eInit.java:618)
E/AndroidRuntime( 2735): at dalvik.system.NativeStart.main(Native Method)
I/Process ( 52): Sending signal. PID: 2735 SIG: 3
I/dalvikvm( 2735): threadid=7: reacting to signal 3
I/dalvikvm( 2735): Wrote stack trace to '/data/anr/traces.txt'
W/ActivityManager( 52): Launch timeout has expired, giving up wake lock!
W/ActivityManager( 52): Activity idle timeout for HistoryRecord{44dcace0 com.n
otification/.List1}
I/Process ( 2735): Sending signal. PID: 2735 SIG: 9
I/ActivityManager( 52): Process com.notification (pid 2735) has died.
I/WindowManager( 52): WIN DEATH: Window{44d8db78 com.notification/com.notifica
tion.List1 paused=false}
I/UsageStats( 52): Unexpected resume of com.android.launcher while already res
umed in com.notification
I/ActivityManager( 52): Start proc com.notification for broadcast com.notifica
tion/.AlarmReceiver: pid=2745 uid=10034 gids={3003}
W/InputManagerService( 52): Window already focused, ignoring focus gain of: co
m.android.internal.view.IInputMethodClient$Stub$Proxy#44f2e3d8
E/gralloc ( 52): [unregister] handle 0x423290 still locked (state=40000001)
D/ddm-heap( 2745): Got feature list request
D/dalvikvm( 1152): GC freed 212 objects / 9560 bytes in 82ms
I/ActivityManager( 52): Starting activity: Intent { act=android.intent.action.
MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.notification/
.NotificationActivity }
I/ActivityManager( 52): Starting activity: Intent { cmp=com.notification/.Back
ground }
I/ActivityManager( 52): Displayed activity com.notification/.Background: 240 m
s (total 16387 ms)
D/dalvikvm( 234): GC freed 43 objects / 2024 bytes in 152ms

i think your adapter should know which textViewResourceId it should use.
So try this out: ArrayAdapter<String> adapter = new ArrayAdapter<String>(context,R.layout.list_item, R.id.tv1,values);

Change this to
<ListView
android:id="#+id/mylist"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
this
<ListView
android:id="#+id/mylist"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
And why do you need listView.setVisibility(0)?

final String[] values = new String[50];
int i=0;
while(cur.moveToNext())
{
values[i]=Integer.toString(cur.getInt(0))+":"+cur.getString(1)+":"+cur.getString(2);
i++;
}
cur.close();
Starting from the this spinet of code.
When the db.query returns you should rewind the cursor before starting to use it in the while loop. What if the query returns more the 50 results? Your app will crash with ArrayOutBoundException

Android NDK hellojni example fails

I'm trying to run the example from NDK package on a AT91SAM9M10-EKES board running Android 2.1
The activity fails.
This is what I get in the logcat, Can someone please guide me with this ?
D/AndroidRuntime( 1153): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
D/AndroidRuntime( 1153): CheckJNI is ON
D/AndroidRuntime( 1153): --- registering native functions ---
D/ddm-heap( 1153): Got feature list request
D/AndroidRuntime( 1153): Shutting down VM
D/dalvikvm( 1153): DestroyJavaVM waiting for non-daemon threads to exit
D/dalvikvm( 1153): DestroyJavaVM shutting VM down
D/dalvikvm( 1153): HeapWorker thread shutting down
D/dalvikvm( 1153): HeapWorker thread has shut down
D/jdwp ( 1153): JDWP shutting down net...
I/dalvikvm( 1153): Debugger has detached; object registry had 1 entries
D/dalvikvm( 1153): VM cleaning up
E/AndroidRuntime( 1153): ERROR: thread attach failed
D/dalvikvm( 1153): LinearAlloc 0x0 used 629532 of 5242880 (12%)
D/AndroidRuntime( 1161):
D/AndroidRuntime( 1161): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
D/AndroidRuntime( 1161): CheckJNI is ON
D/AndroidRuntime( 1161): --- registering native functions ---
D/ddm-heap( 1161): Got feature list request
I/ActivityManager( 767): Starting activity: Intent { act=android.intent.action.MAIN cat=android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.example.hellojni/.HelloJni }
D/AndroidRuntime( 1161): Shutting down VM
D/dalvikvm( 1161): DestroyJavaVM waiting for non-daemon threads to exit
D/dalvikvm( 1161): DestroyJavaVM shutting VM down
D/dalvikvm( 1161): HeapWorker thread shutting down
D/dalvikvm( 1161): HeapWorker thread has shut down
D/jdwp ( 1161): JDWP shutting down net...
I/dalvikvm( 1161): Debugger has detached; object registry had 1 entries
D/dalvikvm( 1161): VM cleaning up
E/AndroidRuntime( 1161): ERROR: thread attach failed
D/dalvikvm( 1161): LinearAlloc 0x0 used 639500 of 5242880 (12%)
I/ActivityManager( 767): Start proc com.example.hellojni for activity com.example.hellojni/.HelloJni: pid=1168 uid=10018 gids={1015}
D/ddm-heap( 1168): Got feature list request
W/dalvikvm( 1168): Exception Ljava/lang/UnsatisfiedLinkError; thrown during Lcom/example/hellojni/HelloJni;.<clinit>
W/dalvikvm( 1168): Class init failed in newInstance call (Lcom/example/hellojni/HelloJni;)
D/AndroidRuntime( 1168): Shutting down VM
W/dalvikvm( 1168): threadid=3: thread exiting with uncaught exception (group=0x4001b168)
E/AndroidRuntime( 1168): Uncaught handler: thread main exiting due to uncaught exception
E/AndroidRuntime( 1168): java.lang.ExceptionInInitializerError
E/AndroidRuntime( 1168): at java.lang.Class.newInstanceImpl(Native Method)
E/AndroidRuntime( 1168): at java.lang.Class.newInstance(Class.java:1479)
E/AndroidRuntime( 1168): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
E/AndroidRuntime( 1168): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2409)
E/AndroidRuntime( 1168): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
E/AndroidRuntime( 1168): at android.app.ActivityThread.access$2200(ActivityThread.java:119)
E/AndroidRuntime( 1168): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
E/AndroidRuntime( 1168): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 1168): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 1168): at android.app.ActivityThread.main(ActivityThread.java:4363)
E/AndroidRuntime( 1168): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 1168): at java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime( 1168): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
E/AndroidRuntime( 1168): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
E/AndroidRuntime( 1168): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 1168): Caused by: java.lang.UnsatisfiedLinkError: Library hello-jni not found
E/AndroidRuntime( 1168): at java.lang.Runtime.loadLibrary(Runtime.java:489)
E/AndroidRuntime( 1168): at java.lang.System.loadLibrary(System.java:557)
E/AndroidRuntime( 1168): at com.example.hellojni.HelloJni.<clinit>(HelloJni.java:64)
E/AndroidRuntime( 1168): ... 15 more
I/Process ( 767): Sending signal. PID: 1168 SIG: 3
I/dalvikvm( 1168): threadid=7: reacting to signal 3
E/dalvikvm( 1168): Unable to open stack trace file '/data/anr/traces.txt': Permission denied
W/ActivityManager( 767): Launch timeout has expired, giving up wake lock!
W/ActivityManager( 767): Activity idle timeout for HistoryRecord{43d5c310 com.example.hellojni/.HelloJni}
D/dalvikvm( 813): GC freed 301 objects / 14832 bytes in 91ms
I/power ( 767): *** set_screen_state 0
E/power ( 767): Failed setting last user activity: g_error=0
W/ActivityManager( 767): Activity pause timeout for HistoryRecord{43d5c310 com.example.hellojni/.HelloJni}
D/dalvikvm( 873): GC freed 165 objects / 6624 bytes in 81ms

you hadnt built the library(.so) file of the project thats why you are getting this error, try to build the project with help of android-ndk http://developer.android.com/sdk/ndk/index.html and cygwin http://www.cygwin.com/

Exception on ListPreferences

This is my first Android app and I've encountered an exception when trying to use the ListPreference. The application loads along with the preferences... but when i touch the ListPreference entry the applications "stops unexpectedly".
Settings.java
public class Settings extends PreferenceActivity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.addPreferencesFromResource(R.layout.settings);
}
}
settings.xml
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen
xmlns:android="http://schemas.android.com/apk/res/android">
<CheckBoxPreference
android:key="chk_enabled"
android:summary="SMS response based on settings"
android:title="Enable"
/>
<ListPreference
android:title="Contacts"
android:summary="Contacs that will be sent SMSs"
android:key="list_contacts"
android:defaultValue="0"
android:entries="#array/list_entries"
android:entryValues="#array/list_values"
/>
</PreferenceScreen>
arrays.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="list_entries">
<item>All</item>
<item>WhiteList</item>
<item>BlackList</item>
</string-array>
<integer-array name="list_values">
<item>0</item>
<item>1</item>
<item>2</item>
</integer-array>
</resources>
This is the logcat output:
D/AndroidRuntime( 3187): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
D/AndroidRuntime( 3187): CheckJNI is OFF
D/AndroidRuntime( 3187): --- registering native functions ---
I/jdwp ( 3187): received file descriptor 16 from ADB
/ddm-heap( 3187): Got feature list request
I/ActivityManager( 86): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=tml.UI.main/.MainActivity }
D/AndroidRuntime( 3187): Shutting down VM
D/dalvikvm( 3187): DestroyJavaVM waiting for non-daemon threads to exit
I/ActivityManager( 86): Start proc tml.UI.main for activity tml.UI.main/.MainActivity: pid=3194 uid=10039 gids={1015}
D/dalvikvm( 3187): DestroyJavaVM shutting VM down
D/dalvikvm( 3187): HeapWorker thread shutting down
D/dalvikvm( 3187): HeapWorker thread has shut down
D/jdwp ( 3187): JDWP shutting down net...
D/jdwp ( 3187): +++ peer disconnected
I/dalvikvm( 3187): Debugger has detached; object registry had 1 entries
D/dalvikvm( 3187): VM cleaning up
D/dalvikvm( 3187): LinearAlloc 0x0 used 676380 of 4194304 (16%)
I/jdwp ( 3194): received file descriptor 10 from ADB
D/ddm-heap( 3194): Got feature list request
W/Resources( 3194): Converting to string: TypedValue{t=0x10/d=0x0 a=-1}
I/ActivityManager( 86): Displayed activity tml.UI.main/.MainActivity: 977 ms (total 977 ms)
D/AndroidRuntime( 3194): Shutting down VM
W/dalvikvm( 3194): threadid=3: thread exiting with uncaught exception (group=0x4001da28)
E/AndroidRuntime( 3194): Uncaught handler: thread main exiting due to uncaught exception
E/AndroidRuntime( 3194): java.lang.NullPointerException
E/AndroidRuntime( 3194): at android.preference.ListPreference.findIndexOfValue(ListPreference.java:169)
E/AndroidRuntime( 3194): at android.preference.ListPreference.getValueIndex(ListPreference.java:178)
E/AndroidRuntime( 3194): at android.preference.ListPreference.onPrepareDialogBuilder(ListPreference.java:190)
E/AndroidRuntime( 3194): at android.preference.DialogPreference.showDialog(DialogPreference.java:291)
E/AndroidRuntime( 3194): at android.preference.DialogPreference.onClick(DialogPreference.java:262)
E/AndroidRuntime( 3194): at android.preference.Preference.performClick(Preference.java:811)
E/AndroidRuntime( 3194): at android.preference.PreferenceScreen.onItemClick(PreferenceScreen.java:190)
E/AndroidRuntime( 3194): at android.widget.AdapterView.performItemClick(AdapterView.java:284)
E/AndroidRuntime( 3194): at android.widget.ListView.performItemClick(ListView.java:3246)
E/AndroidRuntime( 3194): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1635)
E/AndroidRuntime( 3194): at android.os.Handler.handleCallback(Handler.java:587)
E/AndroidRuntime( 3194): at android.os.Handler.dispatchMessage(Handler.java:92)
E/AndroidRuntime( 3194): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 3194): at android.app.ActivityThread.main(ActivityThread.java:4203)
E/AndroidRuntime( 3194): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 3194): at java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime( 3194): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
E/AndroidRuntime( 3194): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
E/AndroidRuntime( 3194): at dalvik.system.NativeStart.main(Native Method)
I/Process ( 86): Sending signal. PID: 3194 SIG: 3
I/dalvikvm( 3194): threadid=7: reacting to signal 3
I/dalvikvm( 3194): Wrote stack trace to '/data/anr/traces.txt'
I/Process ( 3194): Sending signal. PID: 3194 SIG: 9
I/ActivityManager( 86): Process tml.UI.main (pid 3194) has died.
I/WindowManager( 86): WIN DEATH: Window{4341fd00 tml.UI.main/tml.UI.main.MainActivity paused=false}
W/UsageStats( 86): Unexpected resume of com.android.launcher while already resumed in tml.UI.main
W/InputManagerService( 86): Got RemoteException sending setActive(false) notification to pid 3194 uid 10039

I fixed it... I kept on trying and, at the end, it turns out that I cannot use an integer-array as the entryValues Source. I just changed that integer-array to a string-array and got it working.
If there's a way to use integer-array as the source for entryValues please comment.

I've been searching for a similar solution to what you are looking for, agreeing that you should be able to use an Integer array to read from and store an integer result.
A solution to this problem I found was at http://kvance.livejournal.com/1039349.html, which I found to be useful.
It doesn't quite solve the problem the way I was thinking or that way I think you want it to, instead you still specify your initial / selection values with a String array although when the ListPreference saves it back to the SharedPreferences it saves as an Integer instead of a String (doing the conversion when the user selects it), removing the need to have to convert it possibly many times throughout your application when accessing the preference value.