研究没有结果，因为对这个错误的所有其他引用似乎都是可靠的可重复的;我无法一再重复此错误：
08-22 17:32:25.216 22699-22699/com.smbds.punisher11 E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.IllegalArgumentException: width and height must be > 0
at android.graphics.Bitmap.createBitmap(Bitmap.java:1023)
at android.graphics.Bitmap.createBitmap(Bitmap.java:1002)
at android.graphics.Bitmap.createBitmap(Bitmap.java:985)
at com.github.amlcurran.showcaseview.ShowcaseView.updateBitmap(ShowcaseView.java:171)
at com.github.amlcurran.showcaseview.ShowcaseView.onGlobalLayout(ShowcaseView.java:354)
at android.view.ViewTreeObserver.dispatchOnGlobalLayout(ViewTreeObserver.java:655)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2054)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1190)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4860)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:766)
at android.view.Choreographer.doCallbacks(Choreographer.java:575)
at android.view.Choreographer.doFrame(Choreographer.java:542)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:751)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:5751)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1083)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:850)
at dalvik.system.NativeStart.main(Native Method)
如上所述，此错误不会一直发生。它似乎发生了（但不完全是）2-3次，然后2-3次运行没有问题。
这是我的资源档案：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container_fragment_person_list"
android:tag="PersonListFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".fragments.PersonListFragment">
<TextView
android:id="@+id/textView_add_guardian_placeholder"
android:layout_centerInParent="true"
android:layout_width="1dp"
android:layout_height="1dp" />
<TextView
android:id="@+id/textView_intro_placeholder"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:minWidth="1dp"
android:minHeight="1dp"
android:layout_width="1dp"
android:layout_height="1dp" />
<ListView
android:visibility="gone"
android:id="@id/android:list"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<LinearLayout
android:orientation="vertical"
android:id="@id/android:empty"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center" >
<TextView
android:text="@string/no_people"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageButton
android:id="@+id/imageButton_empty_text"
android:src="@drawable/ic_man_silhouette_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="@string/generic_content_description"/>
<TextView
android:id="@+id/test"
android:text="@string/tap_icon_to_add"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</RelativeLayout>
这是我的java。请注意，我甚至尝试对ViewTarget的宽度和高度进行硬编码，但仍然会出现不一致的错误。我也尝试在我的资源文件中创建占位符TextViews，但仍然没有。
public class PersonListFragment extends BaseListFragment {
private PersonAdapter personAdapter;
private PersonModel personModel;
private int personCount;
private TextView tvTargetIntro;
public static PersonListFragment newInstance(String tag, Long index) {
PersonListFragment fragment = new PersonListFragment();
Bundle args = new Bundle();
args.putString(TAG, tag);
args.putLong(INDEX, index);
fragment.setArguments(args);
return fragment;
}
public PersonListFragment() {
}
@SuppressWarnings("UnusedDeclaration")
public void onEventMainThread(People_FetchedEvent ignored) {
refreshList();
}
@SuppressWarnings("UnusedDeclaration")
public void onEventMainThread(Person_CreatedEvent ignored) {
String createType;
if(ignored.getId() == 0 | ignored.getPerson().getId() == null) {
createType = resources.getString(R.string.added);
} else {
createType = resources.getString(R.string.updated);
}
MessageManager.getInstance().makeToast(getActivity(), ignored.getPerson().getName(), " ", createType);
fm.popBackStack();
refreshList();
}
@SuppressWarnings("UnusedDeclaration")
public void onEventMainThread(Person_BuiltEvent ignored) {
makeCreatePersonBackgroundTask(ignored.getPerson());
}
@SuppressWarnings("UnusedDeclaration")
public void onEventMainThread(Person_DeletingEvent ignored) {
personModel.deletePersonByLocalId(ignored.getId());
MessageManager.getInstance().makeToast(getActivity(), PersonController.getInstance().getCurrentPerson().getName() + " " + resources.getString(R.string.removed));
refreshList();
FragmentManager fm = getChildFragmentManager();
fm.popBackStack();
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
personModel = PersonModel.getInstance();
personAdapter = new PersonAdapter(getActivity().getLayoutInflater(), getActivity(), ListType.PROFILE_INFO);
setListAdapter(personAdapter);
personCount = PersonModel.getInstance().getPersonCount();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_person_list, container, false);
LinearLayout layoutEmptyList = (LinearLayout) view.findViewById(android.R.id.empty);
tvTargetIntro = (TextView) view.findViewById(R.id.textView_intro_placeholder);
ImageButton imageButtonEmptyText = (ImageButton) view.findViewById(R.id.imageButton_empty_text);
imageButtonEmptyText.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentTransaction ft;
ft = fm.beginTransaction();
ft.replace(R.id.container_fragment_person_list, PersonEditFragment.newInstance("PERSON_EDIT_FRAGMENT", (long) 0, new Person()), "PERSON_EDIT_FRAGMENT");
ft.addToBackStack(null);
ft.commit();
fm.executePendingTransactions();
}
});
switch(personCount) {
case 0:
break;
case 1:
break;
default:
}
return view;
}
private void makeShowCaseIntro() {
ViewTarget target1 = new ViewTarget(tvTargetIntro);
tvTargetIntro.setWidth(1);
tvTargetIntro.setHeight(1);
ShowcaseView sv = new ShowcaseView.Builder(getActivity())
.setTarget(target1)
.setContentTitle(resources.getString(R.string.showcase_intro_title))
.setContentText(resources.getString(R.string.showcase_intro_text))
.setStyle(R.style.CustomShowcaseTheme2)
.build();
sv.setButtonText(resources.getString(R.string.next));
sv.show();
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
makeShowCaseIntro();
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
PersonController.getInstance().setCurrentPerson(personAdapter.getItem(position));
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.container_fragment_person_list, PersonDisplayFragment.newInstance("PERSON_DISPLAY_FRAGMENT", PersonController.getInstance().getLocalId(), PersonController.getInstance().getCurrentPerson()), "PERSON_DISPLAY_FRAGMENT");
ft.addToBackStack(null);
ft.commit();
fm.executePendingTransactions();
}
private void refreshList() {
new SimpleBackgroundTask<LazyList<Person>>(getActivity()) {
@Override
protected LazyList<Person> onRun() {
return PersonModel.getInstance().lazyLoadPeople();
}
@Override
protected void onSuccess(LazyList<Person> result) {
personAdapter.replaceLazyList(result);
}
}.execute();
}
private void makeCreatePersonBackgroundTask(Person person) {
jobManager.addJobInBackground(new CreatePersonJob(person));
fm.popBackStack();
}
@Override
public void onResume() {
super.onResume();
jobManager.addJobInBackground(new FetchPeopleJob());
if(dataDirty) {
refreshList();
dataDirty = false;
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
FragmentTransaction ft;
Person person = PersonController.getInstance().getCurrentPerson();
ft = fm.beginTransaction();
switch(item.getItemId()) {
case R.id.action_new:
ft.replace(R.id.container_fragment_person_list, PersonEditFragment.newInstance("PERSON_EDIT_FRAGMENT", (long) 0, new Person()), "PERSON_EDIT_FRAGMENT");
ft.addToBackStack(null);
ft.commit();
fm.executePendingTransactions();
return true;
case R.id.action_edit:
ft.replace(R.id.container_fragment_person_list, PersonEditFragment.newInstance("PERSON_EDIT_FRAGMENT", person.getId(), person), "PERSON_EDIT_FRAGMENT");
ft.addToBackStack(null);
ft.commit();
fm.executePendingTransactions();
return true;
case R.id.action_remove:
String title = MessageManager.getInstance().makeString(resources.getString(R.string.remove), " ", person.getName());
String message = MessageManager.getInstance().makeString(resources.getString(R.string.message_confirm_remove), " ", person.getName(), resources.getString(R.string.punctuation_question));
final InfoDialogFragment dialog = InfoDialogFragment.newInstance(title, message, DialogActionType.Delete, DialogActionTarget.Person, person.getId());
dialog.show(ft, DIALOG_TAG);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
我很确定这是android绘制对象的方式的时间问题，但我不知道为什么它们在某些运行中被正确绘制而在其他运行中没有被正确绘制。
请不要删除此问题，除非您确定已在其他地方询问间歇性问题： - ）
感谢任何帮助。
答案 0 :(得分：7)
这是一个众所周知的问题：Github issues过早调用updateBitmap() 此问题来自Bitmap.createBitmap()方法，宽度或高度等于0 解决方法是更多地延迟ShowcaseView的创建：
someView.post(new Runnable() {
@Override
public void run() {
// display ShowcaseView here
}
});
如果视图宽度或高度错误，您还可以将库中的updateBitmap（）方法更改为不创建位图。
答案 1 :(得分：0)
有同样的问题，并在另一个帖子中发布了我的解决方案： https://stackoverflow.com/a/25521608/1752670
我稍微改变了ShowcaseView类
答案 2 :(得分：0)
转到com.github.amlcurran.showcaseview.ShowcaseView并更改此方法
private void updateBitmap() {
if ((bitmapBuffer == null || haveBoundsChanged()) && getMeasuredHeight() > 0 && getMeasuredWidth() > 0) {
if(bitmapBuffer != null)
bitmapBuffer.recycle();
int width = getMeasuredWidth();
int height = getMeasuredHeight();
if(width > 0 && height > 0)
bitmapBuffer = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
}
}
答案 3 :(得分：0)
这是ShowcaseView中的一个错误，从v5.4.2开始修复： https://github.com/amlcurran/ShowcaseView/commit/c79c60dc798f081fb62e48c549c7bdbff8da51b9
因此，您只需将build.gradle更新为：
compile 'com.github.amlcurran.showcaseview:library:5.4.2'