我正在使用actionbarsherlock及其sherlockFragmentActivity。
我有3个片段，并在Tab + ViewPager布局中。
第3个片段是问题所在。这是一个在谷歌地图上显示我的位置的片段。
从我注意到，viewpager，将创建新页面，如果我们滚动页面超过1页，那么它将DESTORY该页面。
所以第一次这一切都很好，我转到第2页，它使用GOOGLEMAPS在第3页调用CREATE。
然而，问题是如果我回到第1页（DESTORIES第3页googlemaps）。现在，如果我回到第2页（尝试创建第3页），第3页的inflater.inflate将会DIE，我将收到错误，首先是Choreographer类。
所以我的问题是，为什么inflater.inflate失败了，用这样的片段编写标签viewpager的正确方法是什么。???
此处的代码（创建主要活动）：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(LayoutParams.FLAG_FULLSCREEN, LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main_activity);
mTabHost = (TabHost)findViewById(android.R.id.tabhost);
mTabHost.setup();
mViewPager = (ViewPager)findViewById(R.id.pager);
mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager);
mTabsAdapter.addTab(mTabHost.newTabSpec("driverInfo").setIndicator("Driver Info"),
DriverInfo.class, null);
mTabsAdapter.addTab(mTabHost.newTabSpec("alarmSystem").setIndicator("Alarm System"),
AlarmSetting.class, null);
mTabsAdapter.addTab(mTabHost.newTabSpec("vehicleLocation").setIndicator("Location"),
VehicleLocation.class, null);
if (savedInstanceState != null) {
mTabHost.setCurrentTabByTag(savedInstanceState.getString("tab"));
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putString("tab", mTabHost.getCurrentTabTag());
}
代码：位置片段：
public class VehicleLocation extends Fragment implements ServerRequestInterface {
private GoogleMap mMap;
private ProgressDialog mProgressDialog;
@Override
public void onCreate(Bundle savedInstanceState) {
try
{
super.onCreate(savedInstanceState);
setupProgressDialog();
}
catch (Exception ex)
{
System.out.println(ex.toString());
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
//WHere it keeps die-ing ----------------------------------
View view = inflater.inflate(R.layout.vehicle_location, container, false);
setUpMapIfNeeded();
return view;
}
错误日志：
05-13 20:48:31.532: E/AndroidRuntime(13219): FATAL EXCEPTION: main
05-13 20:48:31.532: E/AndroidRuntime(13219): android.view.InflateException: Binary XML file line #2: Error inflating class fragment
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
05-13 20:48:31.532: E/AndroidRuntime(13219): at com.covixon.main.VehicleLocation.onCreateView(VehicleLocation.java:37)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1460)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:911)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:163)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.view.ViewPager.populate(ViewPager.java:1011)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.view.ViewPager.populate(ViewPager.java:880)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.view.ViewPager$3.run(ViewPager.java:238)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.view.Choreographer.doCallbacks(Choreographer.java:562)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.view.Choreographer.doFrame(Choreographer.java:531)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.os.Handler.handleCallback(Handler.java:725)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.os.Handler.dispatchMessage(Handler.java:92)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.os.Looper.loop(Looper.java:137)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.app.ActivityThread.main(ActivityThread.java:5237)
05-13 20:48:31.532: E/AndroidRuntime(13219): at java.lang.reflect.Method.invokeNative(Native Method)
05-13 20:48:31.532: E/AndroidRuntime(13219): at java.lang.reflect.Method.invoke(Method.java:511)
05-13 20:48:31.532: E/AndroidRuntime(13219): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:799)
05-13 20:48:31.532: E/AndroidRuntime(13219): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:566)
05-13 20:48:31.532: E/AndroidRuntime(13219): at dalvik.system.NativeStart.main(Native Method)
05-13 20:48:31.532: E/AndroidRuntime(13219): Caused by: java.lang.IllegalArgumentException: Binary XML file line #2: Duplicate id 0x7f040066, tag null, or parent id 0x0 with another fragment for com.google.android.gms.maps.SupportMapFragment
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:285)
05-13 20:48:31.532: E/AndroidRuntime(13219): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:676)
05-13 20:48:31.532: E/AndroidRuntime(13219): ... 26 more
答案 0 :(得分：2)
在更多地盯着堆栈跟踪之后，我注意到了这一行
Caused by: java.lang.IllegalArgumentException: Binary XML file line #2: Duplicate id 0x7f040066, tag null, or parent id 0x0 with another fragment for com.google.android.gms.maps.SupportMapFragment
这引导我谷歌这样，这解决了我的问题：