It doesn't provide me expected output

[sameera liyanage]

this is my main.xml file

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/main_title" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/continue_label" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/new_game_label" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/about_label" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/exit_label" />
</LinearLayout>

this is string.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Sudoku</string>
<string name="main_title">Android Sudoku</string>
<string name="continue_label">Continue</string>
<string name="new_game_label">New Game</string>
<string name="about_label">About</string>
<string name="exit_label">Exit</string>
</resources>

below is screenshot of my project

[sameera liyanage]

this is the output i am getting.but i am expecting a screen with some buttons.where is the error?

[Ulf Dittmer]

That's the emulator home screen; how are you trying to run the application? What's in the logcat output while you do that?

[Maneesh Godbole]

I remember getting goofed up with this.
Notice the "Lock" icon. You need to drag it to the right hand side to "unlock" the phone. If coded correctly, you will see your app there

[sameera liyanage]

I select Sudoko java file & select Run from drop down.
below are the screenshots.

[sameera liyanage]

here is the consol output

[2011-06-15 09:33:57 - Sudoku] ------------------------------
[2011-06-15 09:33:57 - Sudoku] Android Launch!
[2011-06-15 09:33:57 - Sudoku] adb is running normally.
[2011-06-15 09:33:57 - Sudoku] Performing org.example.sudoku.Sudoku activity launch
[2011-06-15 09:33:57 - Sudoku] Automatic Target Mode: launching new emulator with compatible AVD 'em22'
[2011-06-15 09:33:57 - Sudoku] Launching a new emulator with Virtual Device 'em22'
[2011-06-15 09:33:57 - Sudoku] New emulator found: emulator-5554
[2011-06-15 09:33:57 - Sudoku] Waiting for HOME ('android.process.acore') to be launched...
[2011-06-15 09:34:36 - Sudoku] HOME is up on device 'emulator-5554'
[2011-06-15 09:34:36 - Sudoku] Uploading Sudoku.apk onto device 'emulator-5554'
[2011-06-15 09:34:39 - Sudoku] Installing Sudoku.apk...
[2011-06-15 09:35:14 - Sudoku] Success!
[2011-06-15 09:35:14 - Sudoku] Starting activity org.example.sudoku.Sudoku on device emulator-5554
[2011-06-15 09:35:18 - Sudoku] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=org.example.sudoku/.Sudoku }

[sameera liyanage]

"Maneesh " what do you mean lock icon ?
can you explain ?

[Maneesh Godbole]

The android emulator screenshot you provided. At the bottom you can see two icons. One is the "lock". The second is the "volume". Slide the lock icon to the right using your mouse to unlock the phone

[Pramod P Deore]

As Maneesh told drag it to the right hand side to "unlock" the phone. After unlocking phone you can see the output. Or you can press Menu button to unlock the phone.

And what you had posted is not Logcat output it is consol output. To see console output click on DDMS which is located at top right of eclipse.

[sameera liyanage]

thanks all .it is working now.Anyway what is logcat ?

I have attached a screenshot.can you show me where to click?

[Maneesh Godbole]

Window->Show View->Other->Android->LogCat

[sameera liyanage]

i run the project again.but logcat doesn't show anything ?

[Pramod P Deore]

Ok. Do one thing on the top right side of eclipse there is icon of "open perspective" (to the just left of Java) Click on that. Then select DDMS. Then If device contain your emulator name then click on that (just one click) If focus come on that then again look at Logcat you will get Logcat output.

To go to the .java files then click on Java (again top right of eclipse )

[sameera liyanage]

ya,i got it.anyway what can we get from these thisng

06-15 12:05:14.771: DEBUG/dalvikvm(164): GC_EXPLICIT freed 4166 objects / 252808 bytes in 2223ms
06-15 12:05:14.991: WARN/RecognitionManagerService(59): no available voice recognition services found
06-15 12:05:15.931: DEBUG/dalvikvm(59): GC_EXPLICIT freed 5517 objects / 296568 bytes in 188ms
06-15 12:05:16.171: INFO/ActivityThread(262): Publishing provider com.svox.pico.providers.SettingsProvider: com.svox.pico.providers.SettingsProvider
06-15 12:05:16.741: INFO/installd(35): unlink /data/dalvik-cache/data@[e-mail]@classes.dex
06-15 12:05:16.861: DEBUG/AndroidRuntime(146): Shutting down VM
06-15 12:05:16.871: DEBUG/jdwp(146): adbd disconnected
06-15 12:05:16.902: INFO/AndroidRuntime(146): NOTE: attach of thread 'Binder Thread #3' failed
06-15 12:05:17.891: DEBUG/AndroidRuntime(272): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
06-15 12:05:17.891: DEBUG/AndroidRuntime(272): CheckJNI is ON
06-15 12:05:18.361: DEBUG/AndroidRuntime(272): --- registering native functions ---
06-15 12:05:20.731: INFO/ActivityManager(59): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=org.example.sudoku/.Sudoku }
06-15 12:05:21.091: DEBUG/AndroidRuntime(272): Shutting down VM
06-15 12:05:21.112: DEBUG/jdwp(272): adbd disconnected
06-15 12:05:21.171: INFO/AndroidRuntime(272): NOTE: attach of thread 'Binder Thread #3' failed
06-15 12:05:21.251: INFO/ActivityManager(59): Start proc org.example.sudoku for activity org.example.sudoku/.Sudoku: pid=279 uid=10037 gids={}
06-15 12:05:22.981: INFO/ARMAssembler(59): generated scanline__00000077:03545404_00000004_00000000 [ 47 ipp] (67 ins) at [0x3680a8:0x3681b4] in 6432284 ns
06-15 12:05:23.721: INFO/ActivityManager(59): Displayed activity org.example.sudoku/.Sudoku: 2489 ms (total 2489 ms)
06-15 12:09:54.241: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:14:54.311: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:19:54.340: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:24:54.381: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:29:54.384: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:34:54.460: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:39:54.511: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:44:54.561: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:49:54.571: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:54:54.584: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 12:56:00.231: DEBUG/dalvikvm(59): GC_FOR_MALLOC freed 17290 objects / 751392 bytes in 128ms
06-15 12:59:54.606: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 13:04:54.623: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 13:09:54.685: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 13:14:54.750: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 13:19:15.270: DEBUG/dalvikvm(122): GC_FOR_MALLOC freed 9899 objects / 473856 bytes in 111ms
06-15 13:19:54.775: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 13:24:54.821: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 13:29:54.851: DEBUG/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
06-15 13:30:37.332: DEBUG/AndroidRuntime(286): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
06-15 13:30:37.340: DEBUG/AndroidRuntime(286): CheckJNI is ON
06-15 13:30:38.070: DEBUG/AndroidRuntime(286): --- registering native functions ---
06-15 13:30:39.181: DEBUG/AndroidRuntime(286): Shutting down VM
06-15 13:30:39.200: DEBUG/dalvikvm(286): Debugger has detached; object registry had 1 entries
06-15 13:30:39.242: INFO/AndroidRuntime(286): NOTE: attach of thread 'Binder Thread #3' failed
06-15 13:30:39.952: DEBUG/AndroidRuntime(294): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
06-15 13:30:39.952: DEBUG/AndroidRuntime(294): CheckJNI is ON
06-15 13:30:40.251: DEBUG/AndroidRuntime(294): --- registering native functions ---
06-15 13:30:41.241: INFO/ActivityManager(59): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=org.example.sudoku/.Sudoku }
06-15 13:30:41.271: DEBUG/AndroidRuntime(294): Shutting down VM
06-15 13:30:41.281: DEBUG/dalvikvm(294): Debugger has detached; object registry had 1 entries
06-15 13:30:41.301: INFO/AndroidRuntime(294): NOTE: attach of thread 'Binder Thread #3' failed

[Pramod P Deore]

At last you got it

Using logcat output you can trace flow of your application by inserting System.out.println (""); statement.

Try inserting some statement in onCreate () method and in some other method. so you know that first onCreate statement execute first when you run your application. You can also use it for checking variables value at runtime.