Java 保存状态失败:活动SupportMapFragment{}已清除索引:-1
我在片段中使用supportMapFragment这就是为什么我使用Java 保存状态失败:活动SupportMapFragment{}已清除索引:-1,java,android,android-fragments,supportmapfragment,Java,Android,Android Fragments,Supportmapfragment,我在片段中使用supportMapFragment这就是为什么我使用this.getChildFragmentManager()如果这个错误,请指导我 public static ClinicFragment newInstance() { ClinicFragment fragment = new ClinicFragment(); return fragment; } @Override public void onSaveInstan
this.getChildFragmentManager()
如果这个错误,请指导我
public static ClinicFragment newInstance() {
ClinicFragment fragment = new ClinicFragment();
return fragment;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
setTargetFragment(null , -1); // one of my tries
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_maps, null, false);
Log.i(TAG , "onCreateView");
mapFragment = (SupportMapFragment) this.getChildFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
mapUtils = new MapUtils(getActivity());
.......
return view;
}
@Override
public void onMapReady(com.google.android.gms.maps.GoogleMap googleMap) {
mMap = googleMap;
mMap.setMyLocationEnabled(true);
mMap.getUiSettings().setZoomControlsEnabled(true);
mMap.setOnMarkerClickListener(this);
}
@Override
public void onPause() {
super.onPause();
mapUtils.removeUpdate(mMap); // this helper class handle change location listener
Log.i(TAG, "onPause");
}
@Override
public void onDestroyView() {
super.onDestroyView();
Log.i(TAG, "onDestroyView");
}
@Override
public void onStop() {
super.onStop();
Log.i(TAG, "onStop");
killOldMap();
}
//remove map fragment when view disappeared
private void killOldMap() {
try{
SupportMapFragment mapFragment = ((SupportMapFragment) getChildFragmentManager()
.findFragmentById(R.id.map));
if(mapFragment != null) {
FragmentManager fM = getFragmentManager();
fM.beginTransaction().remove(mapFragment).commit();
}
}catch (Exception e){
e.printStackTrace();
}
}
我的日志
java.lang.IllegalStateException: Failure saving state: active SupportMapFragment{1ba0fd93} has cleared index: -1
at android.support.v4.app.FragmentManagerImpl.saveAllState(FragmentManager.java:1824)
at android.support.v4.app.Fragment.performSaveInstanceState(Fragment.java:2111)
at android.support.v4.app.FragmentManagerImpl.saveFragmentBasicState(FragmentManager.java:1767)
at android.support.v4.app.FragmentManagerImpl.saveAllState(FragmentManager.java:1835)
at android.support.v4.app.FragmentController.saveAllState(FragmentController.java:125)
at android.support.v4.app.FragmentActivity.onSaveInstanceState(FragmentActivity.java:523)
at android.app.Activity.performSaveInstanceState(Activity.java:1297)
at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1272)
at android.app.ActivityThread.callCallActivityOnSaveInstanceState(ActivityThread.java:3923)
at android.app.ActivityThread.performStopActivityInner(ActivityThread.java:3334)
at android.app.ActivityThread.handleStopActivity(ActivityThread.java:3390)
at android.app.ActivityThread.access$1100(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1307)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
我可以描述我的错误,它试图删除地图碎片,但他找不到它的参考
我的尝试
java.lang.IllegalStateException: Failure saving state: active SupportMapFragment{1ba0fd93} has cleared index: -1
at android.support.v4.app.FragmentManagerImpl.saveAllState(FragmentManager.java:1824)
at android.support.v4.app.Fragment.performSaveInstanceState(Fragment.java:2111)
at android.support.v4.app.FragmentManagerImpl.saveFragmentBasicState(FragmentManager.java:1767)
at android.support.v4.app.FragmentManagerImpl.saveAllState(FragmentManager.java:1835)
at android.support.v4.app.FragmentController.saveAllState(FragmentController.java:125)
at android.support.v4.app.FragmentActivity.onSaveInstanceState(FragmentActivity.java:523)
at android.app.Activity.performSaveInstanceState(Activity.java:1297)
at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1272)
at android.app.ActivityThread.callCallActivityOnSaveInstanceState(ActivityThread.java:3923)
at android.app.ActivityThread.performStopActivityInner(ActivityThread.java:3334)
at android.app.ActivityThread.handleStopActivity(ActivityThread.java:3390)
at android.app.ActivityThread.access$1100(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1307)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
1-经过长时间的研究,我发现setTargetFragment(null,-1)代码>方法
2-在顶部杀死碎片
但是所有这些尝试都不能帮助我解决问题,任何人都可以告诉我为什么我错过了我不使用公共静态实例()
我使用附加到活动示例的片段
public class MyFragment extends Fragment
我不明白你为什么要杀掉你的地图碎片。我从来没有这样做的必要,只是允许自然活动生命周期管理大多数事物的破坏
您还将在killOldMap之前调用super方法onDestroy,这意味着在super方法中销毁的任务的顺序将在killOldMap方法之前调用。这也会使资源在没有附加活动的情况下悬空
Override
public void onStop() {
super.onStop();
Log.i(TAG, "onStop");
killOldMap();
}
因此,有两种方法可以管理此问题:
移除碎片将导致碎片被销毁,而无需使用kill方法:
getActivity().getSupportFragmentManager().beginTransaction().remove(this)
.commit();
正在使用fragmentTransaction.replace(R.id.yourId,fragment
)
就我个人而言,我喜欢在我的活动布局中使用框架布局,然后在地图和其他片段之间切换可见性,我不会破坏地图,它会以我正在寻找的任何坐标返回。如果我能很好地管理定位服务,这不会有什么坏处。这是我使用的设计选择,绝对不是法律
我使用framelayout中片段的可见性管理任何位置调用。创建自定义方法:
public void hideFrames() {
frameLayout2.setVisibility(View.GONE);
frameLayout3.setVisibility(View.GONE);
}
这样,framelayout可以管理地图的可见性
<RelativeLayout .../...
android:id="@+id/main">
<TextView
android:id="@+id/t1"
.../.../>
<FrameLayout
android:id="@+id/framelayout1"
android:layout_below="@+id/t1"
android:layout_height="fill_parent"
android:layout_width="match_parent"
android:visibility="gone"/>
<FrameLayout
android:id="@+id/framelayout2"
android:layout_below="@+id/t1"
android:layout_height="fill_parent"
android:layout_width="match_parent"
android:visibility="gone">
<fragment
android:id="@+id/map"
android:layout_height="fill_parent"
android:layout_width="match_parent"
android:name="com.google.android.gms.maps.MapFragment"/>
</FrameLayout>
</RelativeLayout>
从附加到活动的每个片段调用它,如下所示:
// create new fragment
((MainActivity) getActivity()).replaceFragment(fragment);
此外:
这有一个已知的问题
保存状态失败
…活动的SuggestFragment{4194f0}已清除索引:-1
当删除相同的片段时出现问题,然后
在完全完成移除之前再次添加(如到期
到正在运行的动画)
对于那些想要更多关于那次撞车的信息的人。getActivity().getSupportFragmentManager()
/getChildFragmentManager()
/getFragmentManager()
之间存在混淆
getActivity()。getSupportFragmentManager()
是活动碎片管理器。
getChildFragmentManager()
是我的FragmentManager(我的作为当前片段)
getFragmentManager()
是我的主机FragmentManager(my作为当前片段),因此如果ParentFragment不为null,则为my ParentFragmentManager,或者为my Activity FragmentManager
因此,请务必始终使用相同的FragmentManager
在问题中,我们可以看到:
mapFragment=(SupportMapFragment)this.getChildFragmentManager()
.findFragmentById(R.id.map)代码>
及
SupportMapFragment mapFragment=((SupportMapFragment)getChildFragmentManager()
.findFragmentById(R.id.map));
if(mapFragment!=null){
FragmentManager fM=getFragmentManager();
fM.beginTransaction().remove(mapFragment.commit();
}
MapFragment永远不会被删除,因为我们使用我们的主机FragmentManager来删除它,而使用ChildFragmentManager来查找它。如果删除的是错误的片段(Map Fragment),则必须删除“ClinicFragment”片段 谢谢你的回答,但我更新了我的问题。现在这个问题可能更清楚了。你不能改变整个问题,特别是当有人花费时间和精力在你的问题上时。请看这个