ResourcePlugin的疑问 about matrix HOT 7 CLOSED

试试post一个延时比较长，比方说1h的message到你的内部handler里？

如果你只是创建一个handler内部类的话实际上还是不会导致Activity泄漏的。

from matrix.

每10S循环post的 Runnable

from matrix.

异常类型：app 运行时异常

手机系统版本：9.0 虚拟机

matrix版本：0.4.10

gradle版本： 3.2.1

finish activity时出现以下错误。怀疑跟ResourcePlugin.activityLeakFixer方法有关
java.lang.RuntimeException: Unable to destroy activity {com.xxx.xxx/com.xxx.xxx.ui.CActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.graphics.drawable.Drawable.setAlpha(int)' on a null object reference
at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4458)
at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:4476)
at android.app.servertransaction.DestroyActivityItem.execute(DestroyActivityItem.java:39)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:145)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:70)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.graphics.drawable.Drawable.setAlpha(int)' on a null object reference
at android.support.v4.widget.SwipeRefreshLayout.setColorViewAlpha(SwipeRefreshLayout.java:234)
at android.support.v4.widget.SwipeRefreshLayout.reset(SwipeRefreshLayout.java:209)
at android.support.v4.widget.SwipeRefreshLayout.onDetachedFromWindow(SwipeRefreshLayout.java:230)
at android.view.View.dispatchDetachedFromWindow(View.java:18400)
at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:3777)
at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:3769)
at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:3769)
at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:3769)
at android.view.ViewGroup.removeViewInternal(ViewGroup.java:5359)
at android.view.ViewGroup.removeViewInternal(ViewGroup.java:5330)
at android.view.ViewGroup.removeView(ViewGroup.java:5261)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1550)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1784)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1852)
at android.support.v4.app.FragmentManagerImpl.dispatchStateChange(FragmentManager.java:3269)
at android.support.v4.app.FragmentManagerImpl.dispatchDestroy(FragmentManager.java:3260)
at android.support.v4.app.FragmentController.dispatchDestroy(FragmentController.java:274)
at android.support.v4.app.FragmentActivity.onDestroy(FragmentActivity.java:419)
at android.support.v7.app.AppCompatActivity.onDestroy(AppCompatActivity.java:210)
at me.yokeyword.fragmentation.SupportActivity.onDestroy(SupportActivity.java:51)

from matrix.

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.graphics.drawable.Drawable.setAlpha(int)' on a null object reference
at android.support.v4.widget.SwipeRefreshLayout.setColorViewAlpha(SwipeRefreshLayout.java:227)
at android.support.v4.widget.SwipeRefreshLayout.reset(SwipeRefreshLayout.java:202)
at android.support.v4.widget.SwipeRefreshLayout.onDetachedFromWindow(SwipeRefreshLayout.java:223)
at android.view.View.dispatchDetachedFromWindow(View.java:15589)
at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:3189)
at android.view.ViewGroup.removeViewInternal(ViewGroup.java:4717)
at android.view.ViewGroup.removeViewInternal(ViewGroup.java:4691)
at android.view.ViewGroup.removeView(ViewGroup.java:4622)
at android.support.v4.view.ViewPager.removeView(ViewPager.java:1501)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1529)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1759)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1827)
at android.support.v4.app.FragmentManagerImpl.dispatchStateChange(FragmentManager.java:3244)
at android.support.v4.app.FragmentManagerImpl.dispatchDestroyView(FragmentManager.java:3229)
at android.support.v4.app.Fragment.performDestroyView(Fragment.java:2561)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1512)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1759)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1827)
at android.support.v4.app.FragmentManagerImpl.dispatchStateChange(FragmentManager.java:3244)
at android.support.v4.app.FragmentManagerImpl.dispatchDestroy(FragmentManager.java:3235)
at android.support.v4.app.FragmentController.dispatchDestroy(FragmentController.java:265)
at android.support.v4.app.FragmentActivity.onDestroy(FragmentActivity.java:390)
at android.support.v7.app.AppCompatActivity.onDestroy(AppCompatActivity.java:209)
at com.ss.android.tuchong.common.base.BaseActivity.onDestroy(BaseActivity.java:271)
at android.app.Activity.performDestroy(Activity.java:7079)
at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1154)
at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4280)
at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:4311) 
at android.app.ActivityThread.-wrap6(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1586) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:163) 
at android.app.ActivityThread.main(ActivityThread.java:6238) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794) 

from matrix.

应该与ResourcePlugin.activityLeakFixer(this)中view.setBackgroundDrawable(null);有关，直接将View中的mBackground设为null，SwipeRefreshLayout中onDetachedFromWindow()调用了reset()方法，mCircleView.getBackground().setAlpha(targetAlpha);，就空指针了。

from matrix.

是不是应该通过post来实现，让系统的onDestroy()调用完成后，再执行。

from matrix.

应该与ResourcePlugin.activityLeakFixer(this)中view.setBackgroundDrawable(null);有关，直接将View中的mBackground设为null，SwipeRefreshLayout中onDetachedFromWindow()调用了reset()方法，mCircleView.getBackground().setAlpha(targetAlpha);，就空指针了。

是的

from matrix.