Android的SupportMapFragment异常错误 [英] Android SupportMapFragment Exception Error
本文介绍了Android的SupportMapFragment异常错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想使用新的谷歌游戏服务库和embbed地图在一侧的地图片段如下
I am trying to use the new Google Play Services Lib and embbed Maps in side the Maps Fragment as below
PlaceMapsFragment.java
public class PlaceMapsFragment extends SupportMapFragment {
private GoogleMap mMap;
private LatLng mPosFija;
public PlaceMapsFragment() {
super();
}
public static PlaceMapsFragment newInstance(LatLng posicion) {
PlaceMapsFragment frag = new PlaceMapsFragment();
frag.mPosFija = posicion;
return frag;
}
@Override
public GoogleMap getMap() {
// TODO Auto-generated method stub
return super.getMap();
}
@Override
public void onCreate(Bundle arg0) {
// TODO Auto-generated method stub
super.onCreate(arg0);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = super.onCreateView(inflater, container, savedInstanceState);
//initMap();
return view;
}
private void initMap() {
UiSettings settings = getMap().getUiSettings();
settings.setAllGesturesEnabled(false);
settings.setMyLocationButtonEnabled(false);
getMap().moveCamera(CameraUpdateFactory.newLatLngZoom(mPosFija, 16));
getMap().addMarker(
new MarkerOptions().position(mPosFija)
.icon(BitmapDescriptorFactory
.fromResource(R.drawable.marker)));
}
}
错误
12-10 01:44:54.416: E/AndroidRuntime(32716): FATAL EXCEPTION: main
12-10 01:44:54.416: E/AndroidRuntime(32716): java.lang.NullPointerException
12-10 01:44:54.416: E/AndroidRuntime(32716): at maps.ar.b.a(Unknown Source)
12-10 01:44:54.416: E/AndroidRuntime(32716): at maps.y.h.a(Unknown Source)
12-10 01:44:54.416: E/AndroidRuntime(32716): at maps.y.au.a(Unknown Source)
12-10 01:44:54.416: E/AndroidRuntime(32716): at maps.y.ae.moveCamera(Unknown Source)
12-10 01:44:54.416: E/AndroidRuntime(32716): at com.google.android.gms.maps.internal.IGoogleMapDelegate$Stub.onTransact(IGoogleMapDelegate.java:83)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.os.Binder.transact(Binder.java:297)
12-10 01:44:54.416: E/AndroidRuntime(32716): at com.google.android.gms.maps.internal.IGoogleMapDelegate$a$a.moveCamera(Unknown Source)
12-10 01:44:54.416: E/AndroidRuntime(32716): at com.google.android.gms.maps.GoogleMap.moveCamera(Unknown Source)
12-10 01:44:54.416: E/AndroidRuntime(32716): at com.m7.nomad.PlaceMapsFragment.initMap(PlaceMapsFragment.java:55)
12-10 01:44:54.416: E/AndroidRuntime(32716): at com.m7.nomad.PlaceMapsFragment.onCreateView(PlaceMapsFragment.java:46)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1460)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:911)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)
12-10 01:44:54.416: E/AndroidRuntime(32716): at com.m7.nomad.PlaceActivity$TabManager.onTabChanged(PlaceActivity.java:153)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.widget.TabHost.invokeOnTabChangeListener(TabHost.java:379)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.widget.TabHost.setCurrentTab(TabHost.java:364)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.widget.TabHost$2.onTabSelectionChanged(TabHost.java:150)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.widget.TabWidget$TabClickListener.onClick(TabWidget.java:540)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.view.View.performClick(View.java:3591)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.view.View$PerformClick.run(View.java:14263)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.os.Handler.handleCallback(Handler.java:605)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.os.Handler.dispatchMessage(Handler.java:92)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.os.Looper.loop(Looper.java:137)
12-10 01:44:54.416: E/AndroidRuntime(32716): at android.app.ActivityThread.main(ActivityThread.java:4507)
12-10 01:44:54.416: E/AndroidRuntime(32716): at java.lang.reflect.Method.invokeNative(Native Method)
12-10 01:44:54.416: E/AndroidRuntime(32716): at java.lang.reflect.Method.invoke(Method.java:511)
12-10 01:44:54.416: E/AndroidRuntime(32716): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
12-10 01:44:54.416: E/AndroidRuntime(32716): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
12-10 01:44:54.416: E/AndroidRuntime(32716): at dalvik.system.NativeStart.main(Native Method)
清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.m7.nomad"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16" />
<permission
android:name="com.example.newmapview.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.newmapview.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/Theme.Sherlock" >
<activity
android:name="com.m7.nomad.SplashActivity"
android:label="@string/app_name" >
</activity>
<activity
android:name="com.m7.nomad.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.m7.nomad.PlaceActivity"
android:label="@string/app_name" >
</activity>
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="XXXXXXXXXXX" />
</application>
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
</manifest>
我有一个SherlockFragmentActivity具有TabHost其中有连接到它的两个片段。我想呈现地图里面其中的一个选项卡片段
I have a SherlockFragmentActivity which has a TabHost which has two Fragments attached to it. I am trying to render the map inside one of those Tab Fragments
修改
我已经得到了地图显示，但现在我不能够引用地图和更改地图混合。基本上，我需要参考地图与出得到零误差。
I have got the Map to be Displayed but now i am not able to Reference the Map and Change the Map to Hybrid. Basically i need to Reference the Map with out getting the Null error.
推荐答案
在 onCreateView（）则必须调用它的父。检查的我的解决方案 http://stackoverflow.com/a/13734470/835787 接近。该地图是在MapFragment的onCreateView（）方法进行初始化，如果你不把它叫做地图将是空的。
In onCreateView() you must call its parent. Check my solution in http://stackoverflow.com/a/13734470/835787 closer. The map is initialized in the onCreateView() method of MapFragment, if you don't call it the map will be null.
这篇关于Android的SupportMapFragment异常错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
