[android-developers] Re: again like all : The application ... (process ...) has stopped unexpectedly. Please try again

HELLO Dear Greg,

YYYYYAAAAAAAAAHOOOOOOOOOOOOOOOO IT WORKS IT WORKS

THANK YOU THANK YOU THANK YOU SOOOO MUCH

I really appreciate your help ... you rescued me from giving up ...

for(i = 1 ; i > 0; i++)
{
Thank you man .. you saved me time XD
}

aMeeN

On Jun 20, 12:42 am, Greg Krimer <gkri...@gmail.com> wrote:
> Hi aMeeN
>
> The LogCat view is your friend. The cause of the error will always be
> displayed there. To display the LogCat view in the current perspective in
> Eclipse go to Window->Show View->Other->Android->LogCat.
>
> When I ran your code, I saw this in the LogCat view:
>
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279): FATAL EXCEPTION: main
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279): java.lang.RuntimeException:
> Unable to start activity
> ComponentInfo{ameen.android.silentModeToggle/ameen.android.silentModeToggle .SilentModelToggleActivity}:
> java.lang.NullPointerException
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> android.app.ActivityThread.access$2300(ActivityThread.java:125)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> android.os.Handler.dispatchMessage(Handler.java:99)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> android.os.Looper.loop(Looper.java:123)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> android.app.ActivityThread.main(ActivityThread.java:4627)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> java.lang.reflect.Method.invokeNative(Native Method)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> java.lang.reflect.Method.invoke(Method.java:521)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java: 868)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> dalvik.system.NativeStart.main(Native Method)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279): Caused by:
> java.lang.NullPointerException
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> ameen.android.silentModeToggle.SilentModelToggleActivity.onCreate(SilentMod elToggleActivity.java:22)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     at
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
> 06-19 21:34:29.586: ERROR/AndroidRuntime(279):     ... 11 more
>
> As you can see, the cause of the problem is just a NullPointerException on
> line 22 of your activity owing to the fact that mAudioManager is used before
> it is unitialized. You initialize it on line 28. I was able to get your app
> to run by uncommenting the code and changing the onCreate() method to the
> following:
>
>     @Override
>     public void onCreate(Bundle savedInstanceState) {
>         super.onCreate(savedInstanceState);
>         setContentView(R.layout.main);
>
>         mAudioManager = (AudioManager)getSystemService(AUDIO_SERVICE);
>         int ringerMode = mAudioManager.getRingerMode();
>
>         checkIfPhoneIsSilent();
>
>         setButtonClickListener();
>     }
>
> Not a bad first Android app!
>
>
>
>
>
>
>
> On Sun, Jun 19, 2011 at 8:46 AM, aMeeN <ameen.ra...@gmail.com> wrote:
> > Hello All,
>
> > I downloaded Eclipse Java (this time) and did all the integration and
> > linking with Android SDK after I finished ...
> > I tried to run the application again .. but unfortunately getting the
> > same error.
>
> > I am seriously started thinking to give up   with android
> > development .. this is one bug takes me around 10 days
>
> > I will give it some more tries and will see.
>
> > On Jun 18, 11:14 am, aMeeN <ameen.ra...@gmail.com> wrote:
> > > Thank you Mr. Zsolt for your help.
>
> > > I wasn't sure about the error reason, Android and Eclipse both are new
> > > to me .. thats why I am confused.
>
> > > I will try to download Eclipse and prepare the development environment
> > > again.
>
> > > Hope it will work properly .. I will update this post with the
> > > result.
>
> > > Thanks again.
>
> > > On Jun 18, 7:29 am, Zsolt Vasvari <zvasv...@gmail.com> wrote:
>
> > > > Why do you think the error is caused by your code?  The stack trace
> > > > you are showing has got something to do with Eclipse, not an Android
> > > > application.
>
> > > > On Jun 17, 10:25 pm, aMeeN <ameen.ra...@gmail.com> wrote:
>
> > > > > I am writing my first Andoid application. And facing an error .. I
> > > > > consider it too strange but also expecting to face a lot of strange
> > > > > errors and bugs.
>
> > > > > I googled to find out what cause that error. And tried to learn how
> > to
> > > > > debug Android application on Eclipse but no luck.
>
> > > > > The application I am writing is having only an image and button. The
> > > > > button is to switch the mobile from normal mode to silent mode and
> > the
> > > > > reverse and the image is an indicator the for which mode currently is
> > > > > active.
>
> > > > > When I got the error I highlighted all the the code and started
> > > > > unhighlighting one by one, till I found the this line specifically
> > > > > cause the error:
>
> > > > > int ringerMode = mAudioManager.getRingerMode();
>
> > > > > when I run the application, on the Debug prespective view , in the
> > > > > error log tab I am getting :
>
> > > > > Error:
>
> > > > > No command output when running: 'am start -n
> > > > > ameen.android.silentModeToggle/
> > > > > ameen.android.silentModeToggle.SilentModelToggleActivity -a
> > > > > android.intent.action.MAIN -c android.intent.category.LAUNCHER' on
> > > > > device emulator-5554
>
> > > > > Exception Stack Track:
>
> > > > > com.android.ddmlib.ShellCommandUnresponsiveException
> > > > >         at
> > com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:
> > > > > 408)
> > > > >         at
> > com.android.ddmlib.Device.executeShellCommand(Device.java:276)
> > > > >         at
>
> > com.android.ide.eclipse.adt.internal.launch.ActivityLaunchAction.doLaunchAc
> > ­tion(ActivityLaunchAction.java:
> > > > > 74)
> > > > >         at
>
> > com.android.ide.eclipse.adt.internal.launch.AndroidLaunchController.launchA
> > ­pp(AndroidLaunchController.java:
> > > > > 1147)
> > > > >         at
>
> > com.android.ide.eclipse.adt.internal.launch.AndroidLaunchController.simpleL
> > ­aunch(AndroidLaunchController.java:
> > > > > 824)
> > > > >         at
>
> > com.android.ide.eclipse.adt.internal.launch.AndroidLaunchController.access
> > > > > $3(AndroidLaunchController.java:808)
> > > > >         at
> > com.android.ide.eclipse.adt.internal.launch.AndroidLaunchController
> > > > > $3.run(AndroidLaunchController.java:656)
>
> > > > > Session Data:
>
> > > > > eclipse.buildId=M20110210-1200
> > > > > java.version=1.6.0_24
> > > > > java.vendor=Apple Inc.
> > > > > BootLoader constants: OS=macosx, ARCH=x86, WS=cocoa, NL=en_US
> > > > > Framework arguments:  -keyring /Users/ameen/.eclipse_keyring -
> > > > > showlocation
> > > > > Command-line arguments:  -os macosx -ws cocoa -arch x86 -keyring /
> > > > > Users/ameen/.eclipse_keyring -showlocation
>
> > > > > I uploaded the zipped project folder into my DropBox folder if
> > someone
> > > > > iterested to test it:
>
> > > > >http://dl.dropbox.com/u/4392604/Silent_Model_Toggle.zip
>
> > > > > I also explained this bug with screen shots in my blog, if you wanna
> > > > > have a look:
> >http://enabofaisal.wordpress.com/2011/06/17/the-application-process-h...
>
> > > > > Please someone help me  =)
>
> > > > > BTW .. as shown above (as Session Data) I have intel x86 MAC OS 10.6
> > > > > and using Eclipse of these infos:
> > > > > Eclipse SDK
>
> > > > > Version: 3.6.2
> > > > > Build id: M20110210-1200
>
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