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
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();
}
}
}
有时活动包括一些片段时,活动需要完全重新创建片段内容,
如果sportFragmentManager.fragments没有清晰的历史片段
val fragments = sportFragmentManager.fragments
val transaction = sportFragmentManager.beginTransaction()
for (frag in fragments){
transaction.remove(frag)
}
transaction.commitAllowingStateLoss()
几次重新创建片段活动将发生(调试使用tooLargeTool)
W/ActivityStopInfo: Bundle stats:
W/ActivityStopInfo: android:viewHierarchyState [size=2304]
W/ActivityStopInfo: android:views [size=2256]
W/ActivityStopInfo: android:support:fragments [size=519072]
W/ActivityStopInfo: PersistableBundle stats:
W/ActivityStopInfo: [null]
对我来说,它也是FragmentStatePagerAdapter,然而覆盖saveState()不起作用。以下是我的解决方法:
当调用FragmentStatePagerAdapter构造函数时,在类中保持一个单独的片段列表,并添加一个方法来删除这些片段:
class PagerAdapter extends FragmentStatePagerAdapter {
ArrayList<Fragment> items;
PagerAdapter(ArrayList<Fragment> frags) {
super(getFragmentManager()); //or getChildFragmentManager() or getSupportFragmentManager()
this.items = new ArrayList<>();
this.items.addAll(frags);
}
public void removeFragments() {
Iterator<Fragment> iter = items.iterator();
while (iter.hasNext()) {
Fragment item = iter.next();
getFragmentManager().beginTransaction().remove(item).commit();
iter.remove();
}
notifyDataSetChanged();
}
}
//...getItem() and etc methods...
}
然后在Activity中,保存ViewPager的位置,并在重写的onSaveInstanceState()方法中调用adapter.removeFragments():
private int pagerPosition;
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
//save other view state here
pagerPosition = mViewPager.getCurrentItem();
adapter.removeFragments();
}
最后,在重写的onResume()方法中,如果适配器不为空,则重新实例化它。(如果它是空的,那么Activity是第一次被打开或应用程序被Android杀死后,onCreate将做适配器创建。)
@Override
public void onResume() {
super.onResume();
if (adapter != null) {
adapter = new PagerAdapter(frags);
mViewPager.setAdapter(adapter);
mViewPager.setCurrentItem(currentTabPosition);
}
}
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);
这可能发生,因为活动“A”可能有片段,当你导航到活动“B”时。
则活动“A”的活动生命周期为
OnResume - > OnPause () > OnSavedInsanceState ()
这里的OnSavedInsanceState可能会导致崩溃,因为它不能保存太多数据的状态。因此,尝试通过添加以下代码来清除活动“A”的saveInsatnce。
@Override
protected void onSaveInstanceState(Bundle oldInstanceState) {
super.onSaveInstanceState(oldInstanceState);
if (oldInstanceState != null) {
oldInstanceState.clear();
}
}