App crashing

[niccolospa]

Can you help me sorting this out? I'm posting the logcat:

When I try to read a TAG:
05-14 10:28:40.385 13786-13786/? V/Zygote: Switching descriptor 40 to /dev/null
Switching descriptor 10 to /dev/null
05-14 10:28:40.385 13786-13786/? D/dalvikvm: Late-enabling CheckJNI
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.view.Window$Callback.onProvideKeyboardShortcuts, referenced from method android.support.v7.view.WindowCallbackWrapper.onProvideKeyboardShortcuts
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve interface method 15848: Landroid/view/Window$Callback;.onProvideKeyboardShortcuts (Ljava/util/List;Landroid/view/Menu;I)V
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x72 at 0x000c
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to find class referenced in signature (Landroid/view/SearchEvent;)
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.view.Window$Callback.onSearchRequested, referenced from method android.support.v7.view.WindowCallbackWrapper.onSearchRequested
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve interface method 15850: Landroid/view/Window$Callback;.onSearchRequested (Landroid/view/SearchEvent;)Z
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x72 at 0x0007
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.view.Window$Callback.onWindowStartingActionMode, referenced from method android.support.v7.view.WindowCallbackWrapper.onWindowStartingActionMode
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve interface method 15854: Landroid/view/Window$Callback;.onWindowStartingActionMode (Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x72 at 0x0009
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.widget.TintTypedArray.getChangingConfigurations
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 462: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x0004
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.widget.TintTypedArray.getType
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 484: Landroid/content/res/TypedArray;.getType (I)I
05-14 10:28:40.505 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x0020
05-14 10:28:40.555 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.widget.FrameLayout.startActionModeForChild, referenced from method android.support.v7.widget.ActionBarContainer.startActionModeForChild
05-14 10:28:40.555 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 16282: Landroid/widget/FrameLayout;.startActionModeForChild (Landroid/view/View;Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
05-14 10:28:40.555 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6f at 0x0016
05-14 10:28:40.555 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.Context.getColorStateList, referenced from method android.support.v7.content.res.AppCompatResources.getColorStateList
05-14 10:28:40.555 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 275: Landroid/content/Context;.getColorStateList (I)Landroid/content/res/ColorStateList;
05-14 10:28:40.555 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x0029
05-14 10:28:40.565 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.res.Resources.getDrawable, referenced from method android.support.v7.widget.ResourcesWrapper.getDrawable
05-14 10:28:40.565 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 425: Landroid/content/res/Resources;.getDrawable (ILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
05-14 10:28:40.565 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x0009
05-14 10:28:40.565 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.res.Resources.getDrawableForDensity, referenced from method android.support.v7.widget.ResourcesWrapper.getDrawableForDensity
05-14 10:28:40.565 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 427: Landroid/content/res/Resources;.getDrawableForDensity (IILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
05-14 10:28:40.565 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x000b
05-14 10:28:40.575 13786-13786/com.learn2crack.nfc E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering
05-14 10:28:40.575 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve instanceof 142 (Landroid/graphics/drawable/RippleDrawable;) in Landroid/support/v7/widget/AppCompatImageHelper;
05-14 10:28:40.575 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x20 at 0x0011
05-14 10:28:40.775 13786-13786/com.learn2crack.nfc I/Adreno-EGL: <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.04.048.065_msm8226_LNX.LA.3.5.1_RB1__release_AU ()
OpenGL ES Shader Compiler Version: E031.24.00.15
Build Date: 06/30/14 Mon
Local Branch:
Remote Branch: quic/LNX.LA.3.5.1_RB1.2
Local Patches: NONE
Reconstruct Branch: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.04.048.065 + NOTHING
05-14 10:28:40.925 13786-13786/com.learn2crack.nfc D/OpenGLRenderer: Enabling debug mode 0
05-14 10:28:41.015 13786-13786/com.learn2crack.nfc I/Activity_Manager: Timeline: Activity_idle id: android.os.BinderProxy@41edb768 time:2159919
05-14 10:28:41.255 13786-13786/com.learn2crack.nfc I/Activity_Manager: Timeline: Activity_idle id: android.os.BinderProxy@41edb768 time:2160151
05-14 10:28:50.745 13786-13786/com.learn2crack.nfc I/dalvikvm: Could not find method android.app.DialogFragment.onAttach, referenced from method com.learn2crack.nfc.NFCReadFragment.onAttach
05-14 10:28:50.745 13786-13786/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 109: Landroid/app/DialogFragment;.onAttach (Landroid/content/Context;)V
05-14 10:28:50.745 13786-13786/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6f at 0x0002
05-14 10:28:51.895 13786-13786/com.learn2crack.nfc D/MainActivity: onNewIntent: android.nfc.action.TAG_DISCOVERED
05-14 10:28:54.385 13786-13786/com.learn2crack.nfc W/InputEventReceiver: Attempted to finish an input event but the input event receiver has already been disposed.
05-14 10:28:54.405 13786-13786/com.learn2crack.nfc D/AndroidRuntime: Shutting down VM
05-14 10:28:54.405 13786-13786/com.learn2crack.nfc W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x416add88)
05-14 10:28:54.405 13786-13786/com.learn2crack.nfc E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.learn2crack.nfc, PID: 13786
java.lang.NullPointerException
at com.learn2crack.nfc.NFCReadFragment.onDetach(NFCReadFragment.java:54)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1017)
at android.app.FragmentManagerImpl.removeFragment(FragmentManager.java:1167)
at android.app.BackStackRecord.run(BackStackRecord.java:654)
at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1447)
at android.app.FragmentManagerImpl$1.run(FragmentManager.java:443)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5124)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:613)
at dalvik.system.NativeStart.main(Native Method)
05-14 10:28:56.675 13786-13786/com.learn2crack.nfc I/Process: Sending signal. PID: 13786 SIG: 9

When I try to write a TAG:
05-14 10:30:02.635 14159-14159/? V/Zygote: Switching descriptor 40 to /dev/null
Switching descriptor 10 to /dev/null
05-14 10:30:02.635 14159-14159/? D/dalvikvm: Late-enabling CheckJNI
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.view.Window$Callback.onProvideKeyboardShortcuts, referenced from method android.support.v7.view.WindowCallbackWrapper.onProvideKeyboardShortcuts
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve interface method 15848: Landroid/view/Window$Callback;.onProvideKeyboardShortcuts (Ljava/util/List;Landroid/view/Menu;I)V
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x72 at 0x000c
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to find class referenced in signature (Landroid/view/SearchEvent;)
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.view.Window$Callback.onSearchRequested, referenced from method android.support.v7.view.WindowCallbackWrapper.onSearchRequested
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve interface method 15850: Landroid/view/Window$Callback;.onSearchRequested (Landroid/view/SearchEvent;)Z
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x72 at 0x0007
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.view.Window$Callback.onWindowStartingActionMode, referenced from method android.support.v7.view.WindowCallbackWrapper.onWindowStartingActionMode
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve interface method 15854: Landroid/view/Window$Callback;.onWindowStartingActionMode (Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x72 at 0x0009
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.widget.TintTypedArray.getChangingConfigurations
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 462: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x0004
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.widget.TintTypedArray.getType
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 484: Landroid/content/res/TypedArray;.getType (I)I
05-14 10:30:02.715 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x0020
05-14 10:30:02.745 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.widget.FrameLayout.startActionModeForChild, referenced from method android.support.v7.widget.ActionBarContainer.startActionModeForChild
05-14 10:30:02.755 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 16282: Landroid/widget/FrameLayout;.startActionModeForChild (Landroid/view/View;Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
05-14 10:30:02.755 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6f at 0x0016
05-14 10:30:02.755 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.Context.getColorStateList, referenced from method android.support.v7.content.res.AppCompatResources.getColorStateList
05-14 10:30:02.755 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 275: Landroid/content/Context;.getColorStateList (I)Landroid/content/res/ColorStateList;
05-14 10:30:02.755 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x0029
05-14 10:30:02.765 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.res.Resources.getDrawable, referenced from method android.support.v7.widget.ResourcesWrapper.getDrawable
05-14 10:30:02.765 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 425: Landroid/content/res/Resources;.getDrawable (ILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
05-14 10:30:02.765 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x0009
05-14 10:30:02.765 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.content.res.Resources.getDrawableForDensity, referenced from method android.support.v7.widget.ResourcesWrapper.getDrawableForDensity
05-14 10:30:02.765 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 427: Landroid/content/res/Resources;.getDrawableForDensity (IILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
05-14 10:30:02.765 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6e at 0x000b
05-14 10:30:02.775 14159-14159/com.learn2crack.nfc E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering
05-14 10:30:02.775 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve instanceof 142 (Landroid/graphics/drawable/RippleDrawable;) in Landroid/support/v7/widget/AppCompatImageHelper;
05-14 10:30:02.775 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x20 at 0x0011
05-14 10:30:02.865 14159-14159/com.learn2crack.nfc I/Adreno-EGL: <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.04.048.065_msm8226_LNX.LA.3.5.1_RB1__release_AU ()
OpenGL ES Shader Compiler Version: E031.24.00.15
Build Date: 06/30/14 Mon
Local Branch:
Remote Branch: quic/LNX.LA.3.5.1_RB1.2
Local Patches: NONE
Reconstruct Branch: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.04.048.065 + NOTHING
05-14 10:30:02.885 14159-14159/com.learn2crack.nfc D/OpenGLRenderer: Enabling debug mode 0
05-14 10:30:02.975 14159-14159/com.learn2crack.nfc I/Activity_Manager: Timeline: Activity_idle id: android.os.BinderProxy@41edde18 time:2241870
05-14 10:30:17.515 14159-14159/com.learn2crack.nfc I/dalvikvm: Could not find method android.app.DialogFragment.onAttach, referenced from method com.learn2crack.nfc.NFCWriteFragment.onAttach
05-14 10:30:17.515 14159-14159/com.learn2crack.nfc W/dalvikvm: VFY: unable to resolve virtual method 109: Landroid/app/DialogFragment;.onAttach (Landroid/content/Context;)V
05-14 10:30:17.525 14159-14159/com.learn2crack.nfc D/dalvikvm: VFY: replacing opcode 0x6f at 0x0002
05-14 10:30:18.715 14159-14159/com.learn2crack.nfc D/MainActivity: onNewIntent: android.nfc.action.TAG_DISCOVERED
05-14 10:30:21.775 14159-14159/com.learn2crack.nfc W/InputEventReceiver: Attempted to finish an input event but the input event receiver has already been disposed.
05-14 10:30:21.795 14159-14159/com.learn2crack.nfc D/AndroidRuntime: Shutting down VM
05-14 10:30:21.795 14159-14159/com.learn2crack.nfc W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x416add88)
05-14 10:30:21.805 14159-14159/com.learn2crack.nfc E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.learn2crack.nfc, PID: 14159
java.lang.NullPointerException
at com.learn2crack.nfc.NFCWriteFragment.onDetach(NFCWriteFragment.java:57)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1017)
at android.app.FragmentManagerImpl.removeFragment(FragmentManager.java:1167)
at android.app.BackStackRecord.run(BackStackRecord.java:654)
at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1447)
at android.app.FragmentManagerImpl$1.run(FragmentManager.java:443)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5124)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:613)
at dalvik.system.NativeStart.main(Native Method)

[rajamalw]

@niccolospa

Can you get these details?

Android Version
Device Name

[niccolospa]

I tested it onto two devices:

• OnePlus One Android version 7.1.2
• Sony Xperia T3 D5103 Android version 4.4.4

[rajamalw]

It looks like your Tag is not formatted to Ndef. You can try this methods from the following package.

https://developer.android.com/reference/android/nfc/tech/NdefFormatable

I will try to get a unformatted Tag to try this.

[niccolospa]

After several trials this is what I got:

• with Sony Xperia the get method of NdefFormatable returned null because as the API says: "This indicates the tag is not NDEF formatable by this Android device."
• with OnePlus One I got to format to NDEF and then the app works, thank you!

After I formatted the tag to NDEF, why the app on Sony Xperia doesn't show me the message even if NFC tools can read it without problems?