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DrawerLayout - Exception dispatching input event

Tags:

android

android-layout

android-fragments

android-support-library

drawerlayout

I recently started using the DrawerLayout in a new project about a week ago and it's all working fine. Apart from the odd times when swiping it in and out with my finger it'll crash.

If I use the ActionBar Up/Home MenuItem though, it'll work fine every time.

In LogCat i get two stacktraces that both seem to point to internal android places, so I don't quite know what to do to solve this.

I just tried creating a new application to see if it was something I was doing before that was causing this, but it happened in the new application too.

I created the new application with the Master/Detail Flow template in the "New Android Application" window, left everything as defaults and just changed activity_item_list.xml to have this inside it:

<android.support.v4.widget.DrawerLayout  
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <fragment
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/item_list"
        android:name="com.navdrawertest.ItemListFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        tools:context=".ItemListActivity"
        tools:layout="@android:layout/list_content" />

    <!-- Navigation Drawer -->
    <ListView
        android:id="@+id/left_drawer"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="#111" />
 </android.support.v4.widget.DrawerLayout>

The DrawerLayout shows and I can still drag it from the edge of the screen, but it still crashes in this test app.

Here are the stacktraces I see after dragging it with my finger:

07-26 09:29:45.574: E/InputEventReceiver(19085): Exception dispatching input event.
07-26 09:29:45.574: E/MessageQueue-JNI(19085): Exception in MessageQueue callback: handleReceiveCallback
07-26 09:29:45.584: E/MessageQueue-JNI(19085): java.lang.NullPointerException
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.support.v4.widget.DrawerLayout.isContentView(DrawerLayout.java:840)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.support.v4.widget.DrawerLayout.onInterceptTouchEvent(DrawerLayout.java:866)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1852)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1910)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1910)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1910)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1966)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1418)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.app.Activity.dispatchTouchEvent(Activity.java:2424)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1914)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.View.dispatchPointerEvent(View.java:7564)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:3883)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3778)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3429)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3398)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3483)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3406)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3540)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3429)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3398)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3406)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5419)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5399)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5370)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5493)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:182)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.os.MessageQueue.nativePollOnce(Native Method)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.os.MessageQueue.next(MessageQueue.java:132)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.os.Looper.loop(Looper.java:124)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at android.app.ActivityThread.main(ActivityThread.java:5103)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at java.lang.reflect.Method.invokeNative(Native Method)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at java.lang.reflect.Method.invoke(Method.java:525)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
07-26 09:29:45.584: E/MessageQueue-JNI(19085):  at dalvik.system.NativeStart.main(Native Method)
07-26 09:29:45.584: D/AndroidRuntime(19085): Shutting down VM
07-26 09:29:45.584: W/dalvikvm(19085): threadid=1: thread exiting with uncaught exception (group=0x41cbb700)
07-26 09:29:45.594: E/AndroidRuntime(19085): FATAL EXCEPTION: main
07-26 09:29:45.594: E/AndroidRuntime(19085): java.lang.NullPointerException
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.support.v4.widget.DrawerLayout.isContentView(DrawerLayout.java:840)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.support.v4.widget.DrawerLayout.onInterceptTouchEvent(DrawerLayout.java:866)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1852)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1910)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1910)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1910)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1966)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1418)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.app.Activity.dispatchTouchEvent(Activity.java:2424)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1914)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.View.dispatchPointerEvent(View.java:7564)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:3883)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3778)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3429)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3398)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3483)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3406)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3540)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3429)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3398)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3406)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5419)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5399)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5370)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5493)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:182)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.os.MessageQueue.nativePollOnce(Native Method)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.os.MessageQueue.next(MessageQueue.java:132)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.os.Looper.loop(Looper.java:124)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at android.app.ActivityThread.main(ActivityThread.java:5103)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at java.lang.reflect.Method.invokeNative(Native Method)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at java.lang.reflect.Method.invoke(Method.java:525)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
07-26 09:29:45.594: E/AndroidRuntime(19085):    at dalvik.system.NativeStart.main(Native Method)

Is there something I'm missing here?

Edit: 10 days in and still can't figure this out, can I at least get confirmation that this isn't just me getting this?

like image 861
Mike Avatar asked Jul 26 '13 08:07

Mike

2 Answers

I have also got this error message but at first I couldn't find out what caused it. After doing some tests I actually found out that removing all margins on the View (in your example the fragment) seems to remove the problem.

So in your case it would be:

<fragment
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/item_list"
    android:name="com.navdrawertest.ItemListFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".ItemListActivity"
    tools:layout="@android:layout/list_content" />

and you can set margins on all the views inside this fragment instead (but I haven't tested it). Hope it helps someone. It seems that this problem is not so common.

like image 188
MintL Avatar answered Sep 20 '22 11:09

MintL

I think I've managed to fix this by creating my own copies of the files I needed from the support library source code and catching the null View in isContentView().

The files I needed from the source were:

  • ActionBarDrawerToggle.java
  • ActionBarDrawerToggleHoneycomb.java
  • DrawerLayout.java

I put them in their own package in my project and renamed DrawerLayout to FixedDrawerLayout. (So I can easily tell which copy of the DrawerLayout I'm using)

I then changed isContentView() to:

boolean isContentView(View child) {
    if(child == null){
        return false;
    }
    return ((LayoutParams) child.getLayoutParams()).gravity == Gravity.NO_GRAVITY;
}

After swapping all references to the DrawerLayout in my Activity to FixedDrawerLayout it seems to have fixed it.

Not sure if there is anything that can happen by just returning false in isContentView(), but it doesn't crash anymore and it's still usable even when child is null.

like image 35
Mike Avatar answered Sep 17 '22 11:09

Mike
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