java.lang.IllegalStateException:活动已被销毁--Android片段
我有这个片段是为了展示一张地图。 当我第二次尝试进入片段时,出现以下错误:java.lang.IllegalStateException:活动已被销毁--Android片段,java,android,android-fragments,fragment,mapfragment,Java,Android,Android Fragments,Fragment,Mapfragment,我有这个片段是为了展示一张地图。 当我第二次尝试进入片段时,出现以下错误: 10-09 19:40:34.050: E/AndroidRuntime(21859): FATAL EXCEPTION: main 10-09 19:40:34.050: E/AndroidRuntime(21859): java.lang.IllegalStateException: Activity has been destroyed 10-09 19:40:34.050: E/AndroidRuntime(21
10-09 19:40:34.050: E/AndroidRuntime(21859): FATAL EXCEPTION: main
10-09 19:40:34.050: E/AndroidRuntime(21859): java.lang.IllegalStateException: Activity has been destroyed
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1358)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:595)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:574)
10-09 19:40:34.050: E/AndroidRuntime(21859): at com.example.cultmacedonia_fragment.map.myMapFragment2.onCreateView(myMapFragment2.java:92)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1478)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:927)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1460)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:440)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.os.Handler.handleCallback(Handler.java:615)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.os.Handler.dispatchMessage(Handler.java:92)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.os.Looper.loop(Looper.java:137)
10-09 19:40:34.050: E/AndroidRuntime(21859): at android.app.ActivityThread.main(ActivityThread.java:4898)
10-09 19:40:34.050: E/AndroidRuntime(21859): at java.lang.reflect.Method.invokeNative(Native Method)
10-09 19:40:34.050: E/AndroidRuntime(21859): at java.lang.reflect.Method.invoke(Method.java:511)
10-09 19:40:34.050: E/AndroidRuntime(21859): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
10-09 19:40:34.050: E/AndroidRuntime(21859): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
10-09 19:40:34.050: E/AndroidRuntime(21859): at dalvik.system.NativeStart.main(Native Method)
第92行在哪里
getChildFragmentManager().beginTransaction()
.add(R.id.map, mMapFragment).commit();
这是我的片段代码:
public class myMapFragment2 extends SherlockFragment {
private MapView mMapView;
private static GoogleMap mMap;
private Bundle mBundle;
private LocationManager locationManager;
private String provider;
static boolean isSinglePane;
private SupportMapFragment mMapFragment;
double latitude = 17.385044;
double longitude = 78.486671;
public static SherlockFragment newInstance() {
myMapFragment2 mFrgment = new myMapFragment2();
return mFrgment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
GoogleMapOptions mapOptions = new GoogleMapOptions();
Bundle bundle = getArguments();
if (bundle != null) {
isSinglePane = bundle.containsKey("KEY_DETAIL");
} else {
isSinglePane = false;
}
mapOptions.compassEnabled(true)
.camera(new CameraPosition(new LatLng(latitude, longitude), 13,
0f, 0f));
mMapFragment = SupportMapFragment.newInstance(mapOptions);
Toast.makeText(getActivity().getApplicationContext(),
String.valueOf(isSinglePane), 1000).show();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View inflatedView = inflater.inflate(R.layout.maps3, container, false);
setHasOptionsMenu(true);
try {
MapsInitializer.initialize(getActivity());
} catch (GooglePlayServicesNotAvailableException e) {
// TODO handle this situation
Log.i("***GooglePlayServicesNotAvailableException", e.toString());
}
getChildFragmentManager().beginTransaction()
.add(R.id.map, mMapFragment).commit();
setUpMapIfNeeded(inflatedView);
return inflatedView;
}
private void setUpMapIfNeeded(View inflatedView) {
if (mMap == null) {
mMap = ((MapView) inflatedView.findViewById(R.id.map)).getMap();
if (mMap != null) {
setUpMap();
}
}
}
private void setUpMap() {
Marker marker = mMap.addMarker(new MarkerOptions()
.position(new LatLng(latitude, longitude))
.title("You are here")
.snippet("your point")
.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));
// create marker
marker.showInfoWindow();
// color icon
// marker.icon(BitmapDescriptorFactory.fromResource(R.drawable.my_marker_icon)));
// adding marker
mMap.setMyLocationEnabled(true);
mMap.getUiSettings().setCompassEnabled(true);
locationManager = (LocationManager) getActivity()
.getApplicationContext().getSystemService(
Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
provider = locationManager.getBestProvider(criteria, false);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.map_menu, menu);
super.onCreateOptionsMenu(menu, inflater);
}
public static void satelliteMap() {
mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
}
public static void normalMap() {
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
}
public static void menuAll() {
}
public static void menuNearMe() {
}
@Override
public void onResume() {
super.onResume();
if (mMap == null) {
mMap = mMapFragment.getMap();
if (mMap != null) {
setUpMap();
}
}
}
@Override
public void onPause() {
super.onPause();
getChildFragmentManager().beginTransaction().remove(mMapFragment)
.commit();
}
public void onDestroyView() {
super.onDestroyView();
FragmentTransaction ft = getActivity().getSupportFragmentManager()
.beginTransaction();
ft.remove(this);
ft.commit();
}
}
及
第一次一切正常,但第二次应用程序崩溃。覆盖activitycreated(Bundle Bundle)方法,并将这些行从onCreateView移到其中
getChildFragmentManager().beginTransaction()
.add(R.id.map, mMapFragment).commit();
setUpMapIfNeeded(inflatedView);
你说的“第二次进入碎片”是什么意思?你在做什么可能会破坏活动?i、 e.转到另一个活动并再次备份到此活动,转到主屏幕或电话,然后返回到此活动,等等。在我的应用程序中,我使用一个lide菜单。菜单中的一个按钮是“地图”,另一个按钮是“新闻”。当我第一次打开应用程序时,我看到了新闻片段,我打开幻灯片菜单,按地图,地图显示正确。如果我去新闻,并试图再次进入地图,那么我会得到错误。希望我的描述是明确的:)对不起,忽略我的第一个关于单身的回答。我有点困惑,因为在newInstance方法中没有遵循标准Java命名约定。你的类名不是以大写字母开头,你的局部变量以小写字母m开头,这通常是为成员变量保留的。这与你的问题无关,但为什么要删除onPause中的内部映射片段?由于您没有在onResume中替换它,因此如果您离开应用程序并返回,例如在打电话之后,它将永远消失。错误消息可能是相同的,但这不是参考问题的重复。在将帖子标记为重复之前,请仔细阅读这些内容。对不起,此解决方案不起作用:)
getChildFragmentManager().beginTransaction()
.add(R.id.map, mMapFragment).commit();
setUpMapIfNeeded(inflatedView);