Ok thanks that's great information I'll look into it.
Lee
On Sep 29, 10:38 am, Romain Guy <romain...@google.com> wrote:
> DialogPreference is an abstract class and cannot be instantiated.
> There was a bug in the VM in 1.5 that would allow abstract classes to
> be instantiated through reflection. Sorry it broke your app but the
> 1.6 behavior is the correct one. Having an instance of an abstract
> class is very wrong and could lead to all sorts of problems.
>
>
>
>
>
> On Mon, Sep 28, 2009 at 5:14 PM, Lee <labor...@gmail.com> wrote:
>
> > Code that was working fine on 1.5 is now trapping on 1.6 while
> > inflating a DialogPreference. I've got a tab host and one of the tabs
> > is hosting a PreferenceActivity. In the onCreate of the preference
> > activity the preferences are loaded from XML using the following call:
>
> > public void onCreate(Bundle savedInstanceState)
> > {
> > super.onCreate(savedInstanceState);
> > addPreferencesFromResource(R.xml.preferences);
> > }
>
> > The stack trace is shown below - this seems like a regression from
> > 1.5...
>
> > 09-29 10:05:44.104: ERROR/AndroidRuntime(784): Uncaught handler:
> > thread main exiting due to uncaught exception
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784):
> > java.lang.RuntimeException: Unable to start activity ComponentInfo
> > {com.XXXXXX.client.gui/
> > com.XXXXXXX.client.preferences.PreferencesActivity}:
> > android.view.InflateException: Binary XML file line #172: Error
> > inflating class java.lang.reflect.Constructor
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> > 2401)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.app.ActivityThread.startActivityNow(ActivityThread.java:2242)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.app.LocalActivityManager.moveToState(LocalActivityManager.java:
> > 127)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.app.LocalActivityManager.startActivity
> > (LocalActivityManager.java:339)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.widget.TabHost$IntentContentStrategy.getContentView
> > (TabHost.java:631)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.widget.TabHost.setCurrentTab(TabHost.java:317)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.widget.TabHost$2.onTabSelectionChanged(TabHost.java:127)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.widget.TabWidget$TabClickListener.onClick(TabWidget.java:346)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.View.performClick(View.java:2344)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.View.onTouchEvent(View.java:4133)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.View.dispatchTouchEvent(View.java:3672)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:850)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > com.android.internal.policy.impl.PhoneWindow
> > $DecorView.superDispatchTouchEvent(PhoneWindow.java:1712)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent
> > (PhoneWindow.java:1202)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.app.Activity.dispatchTouchEvent(Activity.java:1987)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > com.android.internal.policy.impl.PhoneWindow
> > $DecorView.dispatchTouchEvent(PhoneWindow.java:1696)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.view.ViewRoot.handleMessage(ViewRoot.java:1658)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.os.Handler.dispatchMessage(Handler.java:99)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.os.Looper.loop(Looper.java:123)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.app.ActivityThread.main(ActivityThread.java:4203)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > java.lang.reflect.Method.invokeNative(Native Method)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > java.lang.reflect.Method.invoke(Method.java:521)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
> > (ZygoteInit.java:791)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > dalvik.system.NativeStart.main(Native Method)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): Caused by:
> > android.view.InflateException: Binary XML file line #172: Error
> > inflating class java.lang.reflect.Constructor
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.preference.GenericInflater.createItem(GenericInflater.java:
> > 397)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.preference.GenericInflater.onCreateItem(GenericInflater.java:
> > 417)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.preference.GenericInflater.createItemFromTag
> > (GenericInflater.java:428)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.preference.GenericInflater.rInflate(GenericInflater.java:481)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.preference.GenericInflater.inflate(GenericInflater.java:326)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.preference.GenericInflater.inflate(GenericInflater.java:263)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.preference.PreferenceManager.inflateFromResource
> > (PreferenceManager.java:250)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.preference.PreferenceActivity.addPreferencesFromResource
> > (PreferenceActivity.java:253)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > com.XXXXXX.client.preferences.PreferencesActivity.onCreate
> > (PreferencesActivity.java:177)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
> > 1123)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> > 2364)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): ... 30 more
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): Caused by:
> > java.lang.InstantiationException: android.preference.DialogPreference
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > java.lang.reflect.Constructor.constructNative(Native Method)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > java.lang.reflect.Constructor.newInstance(Constructor.java:446)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): at
> > android.preference.GenericInflater.createItem(GenericInflater.java:
> > 383)
> > 09-29 10:05:44.153: ERROR/AndroidRuntime(784): ... 40 more
>
> --
> Romain Guy
> Android framework engineer
> romain...@android.com
>
> Note: please don't send private questions to me, as I don't have time
> to provide private support. All such questions should be posted on
> public forums, where I and others can see and answer them
--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---
