我得到了一个TransactionTooLargeException。无法复制的。文件里说
The Binder transaction failed because it was too large.
During a remote procedure call, the arguments and the return value of the call are transferred as Parcel objects stored in the Binder transaction buffer. If the arguments or the return value are too large to fit in the transaction buffer, then the call will fail and TransactionTooLargeException will be thrown.
...
There are two possible outcomes when a remote procedure call throws TransactionTooLargeException. Either the client was unable to send its request to the service (most likely if the arguments were too large to fit in the transaction buffer), or the service was unable to send its response back to the client (most likely if the return value was too large to fit in the transaction buffer).
...
在某个地方,我传递或接收的参数超出了未知的限制。在哪里?
stacktrace没有显示任何有用的东西:
java.lang.RuntimeException: Adding window failed
at android.view.ViewRootImpl.setView(ViewRootImpl.java:548)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:406)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:320)
at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:152)
at android.view.Window$LocalWindowManager.addView(Window.java:557)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2897)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$600(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1262)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:4977)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.os.TransactionTooLargeException
at android.os.BinderProxy.transact(Native Method)
at android.view.IWindowSession$Stub$Proxy.add(IWindowSession.java:569)
at android.view.ViewRootImpl.setView(ViewRootImpl.java:538)
... 16 more
android.os.TransactionTooLargeException
at android.os.BinderProxy.transact(Native Method)
at android.view.IWindowSession$Stub$Proxy.add(IWindowSession.java:569)
at android.view.ViewRootImpl.setView(ViewRootImpl.java:538)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:406)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:320)
at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:152)
at android.view.Window$LocalWindowManager.addView(Window.java:557)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2897)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$600(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1262)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:4977)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
这似乎和观点有关?这与远程过程调用有什么关系?
可能重要的是:Android版本:4.0.3,设备:HTC One X
这个问题没有一个特定的原因。对我来说,在我的Fragment课上我是这样做的:
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View rootView = inflater.inflate(R.layout.snacks_layout, container); //<-- notice the absence of the false argument
return rootView;
}
而不是这样:
View rootView = inflater.inflate(R.layout.softs_layout, container, false);
有这么多地方TransactionTooLargeException可以发生——这里是Android 8的一个新情况——当有人开始输入EditText时,如果内容太大,就会崩溃。
它与AutoFillManager (API 26中新增)和StartSessionLocked()中的以下代码相关:
mSessionId = mService.startSession(mContext.getActivityToken(),
mServiceClient.asBinder(), id, bounds, value, mContext.getUserId(),
mCallback != null, flags, mContext.getOpPackageName());
如果我理解正确的话,这调用了自动填充服务——在绑定器中传递AutofillManagerClient。当EditText有很多内容时,它似乎会引起TTLE。
在EditText的xml布局声明中添加android:importantForAutofill="noExcludeDescendants"。或者在代码中:
EditText et = myView.findViewById(R.id.scriptEditTextView);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
et.setImportantForAutofill(View.IMPORTANT_FOR_AUTOFILL_NO_EXCLUDE_DESCENDANTS);
}
第二种糟糕的解决方法可能是重写performClick()和onWindowFocusChanged()方法来捕获TextEdit子类本身的错误。但我不认为这是明智的……
对于那些在寻找为什么出现TransactionTooLargeException的答案时感到非常失望的人,请尝试检查在实例状态中保存了多少信息。
在compile/targetSdkVersion <= 23时,我们只有关于保存状态过大的内部警告,但没有崩溃:
E/ActivityThread: App sent too much data in instance state, so it was ignored
android.os.TransactionTooLargeException: data parcel size 713856 bytes
at android.os.BinderProxy.transactNative(Native Method)
at android.os.BinderProxy.transact(Binder.java:615)
at android.app.ActivityManagerProxy.activityStopped(ActivityManagerNative.java:3604)
at android.app.ActivityThread$StopInfo.run(ActivityThread.java:3729)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6044)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
但是在compile/targetSdkVersion >= 24上,我们在这种情况下有真正的RuntimeException崩溃:
java.lang.RuntimeException: android.os.TransactionTooLargeException: data parcel size 713860 bytes
at android.app.ActivityThread$StopInfo.run(ActivityThread.java:3737)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6044)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: android.os.TransactionTooLargeException: data parcel size 713860 bytes
at android.os.BinderProxy.transactNative(Native Method)
at android.os.BinderProxy.transact(Binder.java:615)
at android.app.ActivityManagerProxy.activityStopped(ActivityManagerNative.java:3604)
at android.app.ActivityThread$StopInfo.run(ActivityThread.java:3729)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6044)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
怎么办呢?
保存数据在本地数据库和保持仅id的实例状态,您可以使用检索此数据。
尝试使用EventBus或ContentProvider之类的解决方案。
如果你在同一个进程中(通常你所有的活动都是),尽量使用EventBus,因为在进程中数据交换不需要一个缓冲,所以你不需要担心你的数据太大。(你可以只使用方法调用来传递数据,而EventBus隐藏了丑陋的东西)
细节如下:
// one side
startActivity(intentNotTooLarge);
EventBus.getDefault().post(new FooEvent(theHugeData));
// the other side
@Subscribe public void handleData(FooEvent event) { /* get and handle data */ }
如果Intent的双方不在同一个进程中,可以尝试一些ContentProvider。
看到TransactionTooLargeException
Binder事务失败,因为它太大了。
在远程过程调用期间,调用的参数和返回值作为Parcel对象传输,存储在Binder事务缓冲区中。如果参数或返回值太大,无法放入事务缓冲区,则调用将失败,并抛出TransactionTooLargeException。