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);
问题通过以下方式解决:
Bundle bundle = new Bundle();
bundle.putSerializable("data", bigdata);
...
CacheHelper.saveState(bundle,"DATA");
Intent intent = new Intent(mActivity, AActivity.class);
startActivity(intent, bb);// do not put data to intent.
In Activity:
@Override
protected void onCreate(Bundle savedInstanceState) {
Bundle bundle = CacheHelper.getInstance().loadState(Constants.DATA);
if (bundle != null){
Intent intent = getIntent();
intent.putExtras(bundle);
}
getIntent().getExtra(..);
....
}
@Override
protected void onDestroy() {
super.onDestroy();
CacheHelper.clearState("DATA");
}
public class CacheHelper {
public static void saveState(Bundle savedInstanceState, String name) {
Bundle saved = (Bundle) savedInstanceState.clone();
save(name, saved);
}
public Bundle loadState(String name) {
Object object = load(name);
if (object != null) {
Bundle bundle = (Bundle) object;
return bundle;
}
return null;
}
private static void save(String fileName, Bundle object) {
try {
String path = StorageUtils.getFullPath(fileName);
File file = new File(path);
if (file.exists()) {
file.delete();
}
FileOutputStream fos = new FileOutputStream(path, false);
Parcel p = Parcel.obtain(); //creating empty parcel object
object.writeToParcel(p, 0); //saving bundle as parcel
//parcel.writeBundle(bundle);
fos.write(p.marshall()); //writing parcel to file
fos.flush();
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
}
private static Bundle load(String fileName) {
try {
String path = StorageUtils.getFullPath(fileName);
FileInputStream fis = new FileInputStream(path);
byte[] array = new byte[(int) fis.getChannel().size()];
fis.read(array, 0, array.length);
Parcel parcel = Parcel.obtain(); //creating empty parcel object
parcel.unmarshall(array, 0, array.length);
parcel.setDataPosition(0);
Bundle out = parcel.readBundle();
out.putAll(out);
fis.close();
parcel.recycle();
return out;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static void clearState(Activity ac) {
String name = ac.getClass().getName();
String path = StorageUtils.getFullPath(name);
File file = new File(path);
if (file.exists()) {
file.delete();
}
}
}
我最近也遇到了这个问题,在阅读了这个和其他网站上的所有解决方案2天后,我想分享我的问题的原因和我是如何解决的,因为我没有看到我的问题。
我使用的片段是:
FragmentA ->包含一个位图回收视图
FragmentB ->启动相机并将图像捕获返回到Fragment A
FragmentB有相机的东西,所以我发送位图FragmentA使用previousBackStackEntry像这样:
findNavController().run {
previousBackStackEntry?.savedStateHandle?.set(KEY_REPORT_PHOTO, photo)
popBackStack()
}
最后,我在FragmentA上使用位图:
findNavController().currentBackStackEntry?.savedStateHandle?.getLiveData<Bitmap>(KEY_REPORT_PHOTO)
?.observe(viewLifecycleOwner) {
it?.let { photo ->
viewModel.addPhoto(photo)
findNavController().currentBackStackEntry?.savedStateHandle?.set(KEY_REPORT_PHOTO, null)
}
}
阅读本页上的信息,我的第一种方法是找出onSaveInstanceState中发生了什么,并尝试删除回收器视图中的位图,我认为当我关闭应用程序并将其放在后台时正在保存。
最后,我意识到问题是我在导航组件的BackStackEntry中添加的位图,解决方案就像在FragmentA中使用这一行的位图一样简单:
findNavController().currentBackStackEntry?.savedStateHandle?.set(KEY_REPORT_PHOTO, null)
我遇到过这个问题,我发现当服务和应用程序之间交换大量数据时(这涉及传输大量的缩略图)。实际上数据大小在500kb左右,IPC事务缓冲区大小设置为1024KB。我不确定为什么它超过了事务缓冲区。
当您通过intent extras传递大量数据时,也会发生这种情况
当您在应用程序中遇到此异常时,请分析您的代码。
您是否在服务和应用程序之间交换了大量数据?
使用intent共享海量数据,(例如用户从gallery共享中选择大量文件按share,所选文件的uri将使用intent传输)
从服务接收位图文件
等待android返回大量数据(例如,当用户安装了大量应用程序时,getInstalledApplications())
使用applyBatch()处理大量未决操作
当你得到这个异常时如何处理
如果可能的话,将大操作拆分为小块,例如,调用applyBatch()时不要使用1000个操作,而是每个操作使用100个。
服务和应用之间不交换大数据(>1MB)
我不知道怎么做,但是,不要查询android,它可以返回巨大的数据:-)
如果你使用导航组件的ViewPager2 FragmentStateAdapter:
我在onViewCreated()中创建适配器,但每次导航回来时都会重新创建视图。由于某种原因,旧的适配器没有正确地分离并增加包的大小,直到错误发生。
我用TooLargeTool调试它,解决方案是避免在onViewCreated()中重新创建适配器。
在我的片段中,我有适配器变量:
var pagerAdapter:HomePagerAdapter?=null
在onViewCreated方法中,我只创建了一次适配器:
if(pagerAdapter == null){
pagerAdapter = HomePagerAdapter(childFragmentManager, lifecycle, myContent)
}
为了防止IllegalArgumentException,我手动从onDestroyView中的分页器中分离适配器:
override fun onDestroyView() {
pager.adapter = null
super.onDestroyView()
}