Hi Andre from the logcat:
192): java.lang.NullPointerException E/AndroidRuntime( 192): at com.button.test1.ButtonTest1.onCreateDialog(ButtonTest1.java:90) This means that a NullPointerException was thrown at line 90 in ButtonTest1.java. This usually happens if you try to access use a reference which was null. If line 90 is button3.setOnClickListener(this); than button3 == null. findViewById returns null if the view with the given id is not found. Are you sure that in the layout of the dialog (R.layout.popup_new) a View with id button3 exists? Chrigi On Wed, Feb 10, 2010 at 7:38 PM, André <pha...@hotmail.com> wrote: > Ok, I think I got it. > > Try this link, > http://www.andreborud.com/android/trace3.txt > > > > On Feb 10, 3:34 pm, Christoph Renner <chrigi.ren...@gmail.com> wrote: >> It should look like the second example >> onhttp://youtrack.jetbrains.net/issue/IDEA-24746. If you run "adb >> logcat" this text should appear when your application crashes. >> >> >> >> On Wed, Feb 10, 2010 at 3:24 PM, André <pha...@hotmail.com> wrote: >> > I've never used logcat before but I think I got it right. Here is a >> > link to it: >> >> >http://www.andreborud.com/android/trace2.txt >> >> > Thanks >> >> > André >> >> > On Feb 10, 3:01 pm, Christoph Renner <chrigi.ren...@gmail.com> wrote: >> >> This is not really useful, could you use logcat (either in eclipse or >> >> by running adb logcat) to get to the stack trace which gives >> >> information about the exception thrown? >> >> >> On Wed, Feb 10, 2010 at 2:54 PM, André <pha...@hotmail.com> wrote: >> >> > This is what I get on the InvocationTargetExce >> >> >> > // Compiled from InvocationTargetException.java (version 1.5 : 49.0, >> >> > super bit) >> >> > public class java.lang.reflect.InvocationTargetException extends >> >> > java.lang.Exception { >> >> >> > // Method descriptor #8 ()V >> >> > // Stack: 3, Locals: 1 >> >> > protected InvocationTargetException(); >> >> > 0 aload_0 [this] >> >> > 1 invokespecial java.lang.Exception() [1] >> >> > 4 new java.lang.RuntimeException [2] >> >> > 7 dup >> >> > 8 ldc <String "Stub!"> [3] >> >> > 10 invokespecial java.lang.RuntimeException(java.lang.String) [4] >> >> > 13 athrow >> >> > Line numbers: >> >> > [pc: 0, line: 5] >> >> > Local variable table: >> >> > [pc: 0, pc: 14] local: this index: 0 type: >> >> > java.lang.reflect.InvocationTargetException >> >> >> > // Method descriptor #14 (Ljava/lang/Throwable;)V >> >> > // Stack: 3, Locals: 2 >> >> > public InvocationTargetException(java.lang.Throwable exception); >> >> > 0 aload_0 [this] >> >> > 1 invokespecial java.lang.Exception() [1] >> >> > 4 new java.lang.RuntimeException [2] >> >> > 7 dup >> >> > 8 ldc <String "Stub!"> [3] >> >> > 10 invokespecial java.lang.RuntimeException(java.lang.String) [4] >> >> > 13 athrow >> >> > Line numbers: >> >> > [pc: 0, line: 6] >> >> > Local variable table: >> >> > [pc: 0, pc: 14] local: this index: 0 type: >> >> > java.lang.reflect.InvocationTargetException >> >> > [pc: 0, pc: 14] local: exception index: 1 type: >> >> > java.lang.Throwable >> >> >> > // Method descriptor #17 (Ljava/lang/Throwable;Ljava/lang/String;)V >> >> > // Stack: 3, Locals: 3 >> >> > public InvocationTargetException(java.lang.Throwable exception, >> >> > java.lang.String detailMessage); >> >> > 0 aload_0 [this] >> >> > 1 invokespecial java.lang.Exception() [1] >> >> > 4 new java.lang.RuntimeException [2] >> >> > 7 dup >> >> > 8 ldc <String "Stub!"> [3] >> >> > 10 invokespecial java.lang.RuntimeException(java.lang.String) [4] >> >> > 13 athrow >> >> > Line numbers: >> >> > [pc: 0, line: 7] >> >> > Local variable table: >> >> > [pc: 0, pc: 14] local: this index: 0 type: >> >> > java.lang.reflect.InvocationTargetException >> >> > [pc: 0, pc: 14] local: exception index: 1 type: >> >> > java.lang.Throwable >> >> > [pc: 0, pc: 14] local: detailMessage index: 2 type: >> >> > java.lang.String >> >> >> > // Method descriptor #21 ()Ljava/lang/Throwable; >> >> > // Stack: 3, Locals: 1 >> >> > public java.lang.Throwable getTargetException(); >> >> > 0 new java.lang.RuntimeException [2] >> >> > 3 dup >> >> > 4 ldc <String "Stub!"> [3] >> >> > 6 invokespecial java.lang.RuntimeException(java.lang.String) [4] >> >> > 9 athrow >> >> > Line numbers: >> >> > [pc: 0, line: 8] >> >> > Local variable table: >> >> > [pc: 0, pc: 10] local: this index: 0 type: >> >> > java.lang.reflect.InvocationTargetException >> >> >> > // Method descriptor #21 ()Ljava/lang/Throwable; >> >> > // Stack: 3, Locals: 1 >> >> > public java.lang.Throwable getCause(); >> >> > 0 new java.lang.RuntimeException [2] >> >> > 3 dup >> >> > 4 ldc <String "Stub!"> [3] >> >> > 6 invokespecial java.lang.RuntimeException(java.lang.String) [4] >> >> > 9 athrow >> >> > Line numbers: >> >> > [pc: 0, line: 9] >> >> > Local variable table: >> >> > [pc: 0, pc: 10] local: this index: 0 type: >> >> > java.lang.reflect.InvocationTargetException >> >> > } >> >> >> > And when I run the program on the emulator it starts, but when I press >> >> > button 1 that opens the dialog it has to force shut down. >> >> >> > Any suggestions? >> >> >> > On Feb 10, 2:43 pm, Christoph Renner <chrigi.ren...@gmail.com> wrote: >> >> >> What exactly is the problem? Is there a compiler error or is an >> >> >> exception thrown when executing? In both cases, an error message might >> >> >> be useful. >> >> >> >> Cheers, >> >> >> Chrigi >> >> >> >> On Wed, Feb 10, 2010 at 2:39 PM, André <pha...@hotmail.com> wrote: >> >> >> > Thanks for you reply Chrigi! >> >> >> >> > I tried what you suggested but the problem still looks exactly the >> >> >> > same. Would you happen to have any other suggestions? >> >> >> >> > Cheers >> >> >> > André >> >> >> >> > On Feb 10, 2:01 pm, Christoph Renner <chrigi.ren...@gmail.com> wrote: >> >> >> >> Hi Andre >> >> >> >> >> I assume that buton 3-6 are in R.layout.poput_new and not >> >> >> >> R.layout.main, in that case you call findViewById on the activity >> >> >> >> which does not contain those buttons. You need to call findViewById >> >> >> >> on >> >> >> >> the dialog after you called setContentView. >> >> >> >> >> Try the following: >> >> >> >> >> in onCreate: >> >> >> >> remove the following lines >> >> >> >> button3 = (Button) findViewById(R.id.button3); >> >> >> >> button4 = (Button) findViewById(R.id.button4); >> >> >> >> button5 = (Button) findViewById(R.id.button5); >> >> >> >> button6 = (Button) findViewById(R.id.button5); // typo at >> >> >> >> this line, should probably be R.id.button6 >> >> >> >> >> in onCreateDialog: >> >> >> >> add the following lined just before >> >> >> >> "button3.setOnClickListener(this);" >> >> >> >> button3 = (Button) dialog.findViewById(R.id.button3); >> >> >> >> button4 = (Button) dialog.findViewById(R.id.button4); >> >> >> >> button5 = (Button) dialog.findViewById(R.id.button5); >> >> >> >> button6 = (Button) dialog.findViewById(R.id.button6); >> >> >> >> >> Cheers, >> >> >> >> Chrigi >> >> >> >> >> On Wed, Feb 10, 2010 at 1:28 PM, André <pha...@hotmail.com> wrote: >> >> >> >> > Hello, >> >> >> >> >> > I am trying to use 6 buttons in one activity. The first 2 buttons >> >> >> >> > work, but the problem is the 4 other ones that are located in a >> >> >> >> > dialog >> >> >> >> > box. For the first two buttons I use >> >> >> >> > "button1.setOnClickListener(this);" which is placed in the >> >> >> >> > oncreate >> >> >> >> > method. For the other 4 buttons I thought I could use the same >> >> >> >> > line >> >> >> >> > but place it in the Dialog method. But I was wrong. I this it's >> >> >> >> > the >> >> >> >> > (this) that is wrong. Bellow is my code and I have marked the line >> >> >> >> > where eclipse debug reacts. Or maybe you pro's see some thing else >> >> >> >> > that I did totally wrong? >> >> >> >> >> > regards >> >> >> >> > André >> >> >> >> >> > ... >> >> >> >> > public class ButtonTest1 extends Activity implements >> >> >> >> > OnClickListener { >> >> >> >> > static final int DIALOG_NEW = 0; >> >> >> >> > private Button button1; >> >> >> >> > private Button button2; >> >> >> >> > private Button button3; >> >> >> >> > private Button button4; >> >> >> >> > private Button button5; >> >> >> >> > private Button button6; >> >> >> >> >> > /** Called when the activity is first created. */ >> >> >> >> > �...@override >> >> >> >> > public void onCreate(Bundle savedInstanceState) { >> >> >> >> > super.onCreate(savedInstanceState); >> >> >> >> > setContentView(R.layout.main); >> >> >> >> > button1 = (Button) findViewById(R.id.button1); >> >> >> >> > button2 = (Button) findViewById(R.id.button2); >> >> >> >> > button3 = (Button) findViewById(R.id.button3); >> >> >> >> > button4 = (Button) findViewById(R.id.button4); >> >> >> >> > button5 = (Button) findViewById(R.id.button5); >> >> >> >> > button6 = (Button) findViewById(R.id.button5); >> >> >> >> >> > button1.setOnClickListener(this); >> >> >> >> > button2.setOnClickListener(this); >> >> >> >> >> > } >> >> >> >> > public void onClick(View view) { >> >> >> >> > switch (view.getId()) { >> >> >> >> > case R.id.button1: >> >> >> >> > showDialog(DIALOG1); >> >> >> >> > break; >> >> >> >> > case R.id.button2: >> >> >> >> >> > break; >> >> >> >> > case R.id.button3: >> >> >> >> >> > break; >> >> >> >> > case R.id.button4: >> >> >> >> >> > break; >> >> >> >> > case R.id.button5: >> >> >> >> >> > break; >> >> >> >> > case R.id.button6: >> >> >> >> >> > break; >> >> >> >> > } >> >> >> >> > } >> >> >> >> > protected Dialog onCreateDialog(int id) { >> >> >> >> > Dialog dialog = new Dialog(this); >> >> >> >> > switch(id) { >> >> >> >> > case DIALOG_NEW: >> >> >> >> > dialog.setContentView(R.layout.popup_new); >> >> >> >> > dialog.setTitle("Choose button..."); >> >> >> >> >> > button3.setOnClickListener(this); >> >> >> >> > <------------------------------------------------------problem >> >> >> >> > starts >> >> >> >> > here when dialog box opens >> >> >> >> > button4.setOnClickListener(this); >> >> >> >> > button5.setOnClickListener(this); >> >> >> >> > button6.setOnClickListener(this); >> >> >> >> >> > break; >> >> >> >> >> > >> >> ... >> >> read more » > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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