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


当前回答

将此添加到您的活动中

@Override
protected void onSaveInstanceState(Bundle oldInstanceState) {
    super.onSaveInstanceState(oldInstanceState);
    oldInstanceState.clear();
}

对我有用,希望对你也有帮助

其他回答

所以对我们来说,我们试图通过我们的AIDL接口发送一个太大的对象到远程服务。事务大小不能超过1MB。请求被分解为512KB的独立块,并通过接口一次发送一个。我知道这是一个残酷的解决方案,但是,嘿,它是Android:(

一个解决方案是应用程序将数组列表(或任何导致问题的对象)写入文件系统,然后通过Intent将该文件的引用(例如,文件名/路径)传递给IntentService,然后让IntentService检索文件内容并将其转换回数组列表。

当IntentService处理完文件后,它应该要么删除它,要么通过Local Broadcast将指令传递回应用程序以删除它创建的文件(传递回提供给它的相同文件引用)。

要了解更多信息,请参阅我对这个相关问题的回答。

在我的情况下,TransactionTooLargeException的原因是我在参数中发送大数据片段(使用Bundle),像这样:

        var arguments = Bundle()
        arguments.putSerializable("argumentName", argumentValue)
        fragment.arguments = arguments

只有当argumentValue的大小较小(例如Int或String)时,它才能正常工作, 但如果它有很大的大小(例如DTO列表)-你可以得到TransactionTooLargeException。 现在我在构造函数中传递参数给fragment,一切正常。

PS 感谢sulai提供TooLargeTool

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。

此异常通常在应用程序被发送到后台时抛出。

因此,我决定使用数据片段模式来完全绕过onSavedInstanceState生命周期。我的解决方案还处理复杂的实例状态并尽快释放内存。

首先,我创建了一个简单的片段来存储数据:

package info.peakapps.peaksdk.logic;
import android.app.Fragment;
import android.app.FragmentManager;
import android.os.Bundle;

/**
 * A neat trick to avoid TransactionTooLargeException while saving our instance state
 */

public class SavedInstanceFragment extends Fragment {

    private static final String TAG = "SavedInstanceFragment";
    private Bundle mInstanceBundle = null;

    public SavedInstanceFragment() { // This will only be called once be cause of setRetainInstance()
        super();
        setRetainInstance( true );
    }

    public SavedInstanceFragment pushData( Bundle instanceState )
    {
        if ( this.mInstanceBundle == null ) {
            this.mInstanceBundle = instanceState;
        }
        else
        {
            this.mInstanceBundle.putAll( instanceState );
        }
        return this;
    }

    public Bundle popData()
    {
        Bundle out = this.mInstanceBundle;
        this.mInstanceBundle = null;
        return out;
    }

    public static final SavedInstanceFragment getInstance(FragmentManager fragmentManager )
    {
        SavedInstanceFragment out = (SavedInstanceFragment) fragmentManager.findFragmentByTag( TAG );

        if ( out == null )
        {
            out = new SavedInstanceFragment();
            fragmentManager.beginTransaction().add( out, TAG ).commit();
        }
        return out;
    }
}

然后在我的主活动上,我完全绕过了保存的实例周期,并将责任推迟到我的数据片段。不需要对片段本身使用这个,因为它们的状态会自动添加到Activity的状态中):

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);

    SavedInstanceFragment.getInstance( getFragmentManager() ).pushData( (Bundle) outState.clone() );
    outState.clear(); // We don't want a TransactionTooLargeException, so we handle things via the SavedInstanceFragment
}

剩下的就是弹出保存的实例:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(SavedInstanceFragment.getInstance(getFragmentManager()).popData());
}

@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
    super.onRestoreInstanceState( SavedInstanceFragment.getInstance( getFragmentManager() ).popData() );
}

详情:http://www.devsbedevin.net/avoiding-transactiontoolargeexception-on-android-nougat-and-up/