There appears to be a synchronization related bug in the Lunar Lander
example or SurfaceView. I need help debugging it because I've
inadvertently copied the bug into my own project.
How to recreate it:
Start Lunar Lander.
Press up to start playing.
Press Home.
Long-Press Home to get the Activity stack.
Select Lunar Lander in the Activity Stack.
I'm sure there are other ways variants to the same end, but this is
repeatable on 1.0r1 emulator (I'm running on Mac).
Stack traces and variables from Eclipse debugger follow:
==================================================
Stack Trace
---------------------------------------------------------
Thread [<3> main] (Suspended (exception IllegalThreadStateException))
LunarView(SurfaceView).updateWindow(boolean) line: 362
LunarView(SurfaceView).onWindowVisibilityChanged(int) line: 173
LunarView(View).dispatchWindowVisibilityChanged(int) line: 3241
FrameLayout(ViewGroup).dispatchWindowVisibilityChanged(int) line:
691
FrameLayout(ViewGroup).dispatchWindowVisibilityChanged(int) line:
691
PhoneWindow$DecorView(ViewGroup).dispatchWindowVisibilityChanged(int)
line: 691
ViewRoot.performTraversals() line: 587
ViewRoot.handleMessage(Message) line: 1103
ViewRoot(Handler).dispatchMessage(Message) line: 88
Looper.loop() line: 123
ActivityThread.main(String[]) line: 3742
Method.invokeNative(Object, Object[], Class, Class[], Class, int,
boolean) line: not available [native method]
Method.invoke(Object, Object...) line: 515
ZygoteInit$MethodAndArgsCaller.run() line: 739
ZygoteInit.main(String[]) line: 497
NativeStart.main(String[]) line: not available [native method]
==================================================
Variables
---------------------------------------------------------
this LunarView (id=830056358096)
mAttachInfo View$AttachInfo (id=830056328120)
mBackgroundResource 0
mBackgroundSizeChanged true
mBGDrawable null
mBottom 455
mCallbacks ArrayList (id=830056358512)
mContext LunarLander (id=830056347464)
mContext LunarLander (id=830056347464)
mCoveredInsets Rect (id=830056358776)
mCurrentAnimation null
mDestroyReportNeeded true
mDrawableState null
mDrawingCache null
mDrawingCacheBackgroundColor 0
mDrawingStopped false
mFloatingTreeObserver null
mFormat -1
mHandler SurfaceView$1 (id=830056358976)
mHasPerformedLongPress false
mHaveFrame true
mHeight 455
mID 2131034112
mIsCreating false
mLastLockTime 55492
mLayout WindowManager$LayoutParams (id=830056358648)
mLayoutParams FrameLayout$LayoutParams (id=830056294272)
mLeft 0
mLeft 0
mLocation int[2] (id=830056358448)
mMeasuredHeight 455
mMeasuredWidth 320
mMinHeight 0
mMinWidth 0
mNewSurfaceNeeded false
mNextFocusDownId -1
mNextFocusLeftId -1
mNextFocusRightId -1
mNextFocusUpId -1
mOldHeightMeasureSpec 1073742279
mOldWidthMeasureSpec 1073742144
mOnClickListener null
mOnCreateContextMenuListener null
mOnFocusChangeListener null
mOnKeyListener null
mOnLongClickListener null
mOnTouchListener null
mPaddingBottom 0
mPaddingLeft 0
mPaddingRight 0
mPaddingTop 0
mParent FrameLayout (id=830056355256)
mPendingCheckForLongPress null
mPrivateFlags 134800
mRequestedFormat -1
mRequestedHeight -1
mRequestedType -1
mRequestedVisible true
mRequestedWidth -1
mResources Resources (id=830056332440)
mRight 320
mScrollCache null
mScrollX 0
mScrollY 0
mSession IWindowSession$Stub$Proxy (id=830056334560)
mStatusText TextView (id=830056315544)
mSurface Surface (id=830056358592)
mSurfaceFrame Rect (id=830056359008)
mSurfaceHolder SurfaceView$2 (id=830056359288)
mSurfaceLock ReentrantLock (id=830056358544)
mTag null
mTempRect Rect (id=830056358480)
mTop 0
mTop 25
mTouchDelegate null
mType -1
mUserPaddingBottom 0
mUserPaddingRight 0
mViewFlags 134217857
mVisible true
mWidth 320
mWindow SurfaceView$MyWindow (id=830056319160)
mWindowAttachCount 1
mWinFrame Rect (id=830056358744)
thread LunarView$LunarThread (id=830056361944)
visible true
relayoutResult 3
creating false
formatChanged false
myHeight 455
myWidth 320
sizeChanged false
typeChanged false
visibleChanged true
force false
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