标签: supportmapfragment

我正在使用supportMapFragment里面的片段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 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 …

我有一个带有一些碎片的导航抽屉.每个片段在布局中都有一个MapFragment.最初,当应用程序运行导航抽屉时,单击打开片段一次,但是当我单击相同的导航项以第二次打开相同的片段(在访问其他片段之后)后,我得到以下错误onCreateView()

Binary XML file line #1: Error inflating class fragment 

下面是我的片段代码:

user_map_Fragment.xml

 <LinearLayout
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:orientation="vertical"
        android:id="@+id/parentContainer"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">
        <fragment
            android:id="@+id/map"
            android:layout_width="match_parent"
            android:layout_height="200dp"
            android:name="com.google.android.gms.maps.MapFragment"/>

......
</LinearLayout>

MainFragment.cs

public class MainFragement : Android.Support.V4.App.Fragment, IOnMapReadyCallback, ILocationListener, Android.Views.View.IOnKeyListener
    {

        private GoogleMap mMap;

        private LocationManager _locationManager;
        private string _locationProvider;
        private Android.Locations.Location _currentLocation;

        public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
        {
            if (v == null)
            {
                v = inflater.Inflate(Resource.Layout.Main, container, false);

                SetUpMap();
                InitializeLocationManager();

            }
            return v;
        }
}



private void SetUpMap()
        {
            if …

我有一个扩展SupportMapFragment的片段.

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; …

我正在使用SupportMapFragment并取得圆满成功.我根本没有任何问题.

但是我在应用程序运行时遇到错误.我正在运行Gingerbread手机,它有最新的GooglePlay.另请注意,我正在使用SupportMapFragment和其他支持类,以迎合预蜂窝.

Could not find class 'maps.j.k', referenced from method maps.y.ae.a`

一旦我膨胀我的视图就会发生错误.

inflater.inflate(R.layout.fragment_map, container, false);

我的布局文件(fragment_map.xml):

<fragment
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_weight="1" />

堆栈跟踪(出错时):

Thread [<1> main] (Suspended)   
<VM does not provide monitor information>   
PhoneLayoutInflater(LayoutInflater).inflate(int, ViewGroup, boolean) line: 322  
MapsFragment.onCreateView(LayoutInflater, ViewGroup, Bundle) line: 90   
MapsFragment(Fragment).performCreateView(LayoutInflater, ViewGroup, Bundle) line: 1460  
FragmentManagerImpl.moveToState(Fragment, int, int, int, boolean) line: 911 
FragmentManagerImpl.moveToState(int, int, int, boolean) line: 1088  
BackStackRecord.run() line: 682 
FragmentManagerImpl.execPendingActions() line: 1444 
FragmentManagerImpl$1.run() line: 429   
FragmentActivity$1(Handler).handleCallback(Message) line: 587   
FragmentActivity$1(Handler).dispatchMessage(Message) line: 92   
Looper.loop() …

在我的应用程序中我在片段中显示谷歌地图版本2.但我得到Null指针异常

mMap = ((SupportMapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();

这是我的完整代码:

    public class SearchResultMap extends Fragment{

    private GoogleMap mMap;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View fragmentView = inflater.inflate(R.layout.map, container, false);

        mMap = ((SupportMapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap(); // line no : 28

         mMap.addMarker(new MarkerOptions() .position(new LatLng(xxxxxx,xxxxxx)) .title("Current Location")
         .icon(BitmapDescriptorFactory.fromResource(R.drawable.ball_pointer))
         .snippet("xxxxx"));

        return fragmentView;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
    }

}

XML:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

   <fragment
        android:id="@+id/map"
        android:name="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent" /> …

我正在尝试在片段中动态加载SupportMapFragment,这是我的onCreateView()方法:

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
            View contentView = inflater.inflate(R.layout.frag_map_layout, null);
            shopDtos=ShopListFragment.shopDtos;
            fragment =SupportMapFragment.newInstance();
            FragmentTransaction ft = getFragmentManager().beginTransaction();
            ft.replace(R.id.map_content, fragment);
            ft.commit();
            map = fragment.getMap();
            mapMarker = map.addMarker(new MarkerOptions().position(new LatLng(0, 0))
                    .icon(BitmapDescriptorFactory
                            .fromResource(R.drawable.maps_pin)));
        return contentView;
    }

不幸的是,我将谷歌地图映射为null.有关如何动态创建mapfragment的任何建议？

我正在 Xamarin 中编写 Google 地图应用程序，并已成功扩展该类以使用Android.Support.V4.App.FragmentActivity.

我现在想将 a 更改Android.Support.V4.App.FragmentActivity为 a Android.Support.V4.App.Fragment，以便我可以拥有ViewPager一个包含 Google 地图片段的 a。

由于我现在已更改了要扩展的类Android.Support.V4.App.Fragment，因此我无法引用SupportFragmentManager.

这是我的代码：

private void InitMapFragment()
{
    _mapFragment = SupportFragmentManager.FindFragmentByTag("map") as SupportMapFragment;
    if (_mapFragment == null)
    {
        GoogleMapOptions mapOptions = new GoogleMapOptions()
            .InvokeMapType(GoogleMap.MapTypeNormal)
            .InvokeZoomControlsEnabled(true)
            .InvokeCompassEnabled(true);

        FragmentTransaction fragTx = SupportFragmentManager.BeginTransaction();
        _mapFragment = SupportMapFragment.NewInstance(mapOptions);
        fragTx.Add(Resource.Id.map, _mapFragment, "map");
        fragTx.Commit();
    }
}

如何SupportFragmentManager在 a 中引用Android.Support.V4.App.Fragment？

提前致谢

我们正试图在我们的Android应用程序中追踪GoogleMap上发生的内存泄漏,该应用程序在大约40-50个设备轮换后以OOM结束.地图设置为3500个标记.

该应用程序的minSDK为9,因此使用V4支持库中的SupportMapFragment.

我们尝试过多种方法,包括:

• 缓存LatLng
• 缓存CameraUpdates
• 从地图中删除标记
• 从地图中删除侦听器
• 删除所有侦听器,标记等,以便我们只有一个普通的地图
• 更新Google Play服务库
• 更新支持库

分析MAT中的内存转储表明我们积累了大量的实例 com.google.android.gms.location.internal.LocationClientHelper$ListenerTransport ,我们不知道它们来自哪里.

任何人都知道这个内存泄漏的原因是什么？

以下代码已删除所有标记和侦听器,但仍然存在泄漏.首先是基类:

public abstract class BaseMapFragment extends Fragment {

public static final int MENU_ITEM_ID_SEARCH= 102;
public static final int MENU_ITEM_ID_SHOW_LIST= 100;
public static final int ZOOM_LEVEL_DEFAULT= 14;

private static final String SAVED_INSTANCE_LATITUDE= "savedLatitude";
private static final String SAVED_INSTANCE_LONGITUDE= "savedLongitutde";
private static final String SAVED_INSTANCE_ZOOM= "savedZoom";

protected static final String CLASSTAG= BaseMapFragment.class.getSimpleName();

private GoogleMap mMap;
private CameraUpdate mResumeCameraUpdate= null;
private double mSavedLatitude;
private double mSavedLongitude;
private float …

我观察到谷歌地图的意外行为.问题是使用支持地图片段从顶部和底部区域获取裁剪,如果我使用全屏,则地图完全可见,如图1所示,但如果我应用地图片段高度或权重属性,则地图不完全可见如图2所示.

图片1的布局xml:

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.paki.venturedive.awtest.MapsActivity" />

布局xml为图片2:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="0.6"
    tools:context="com.paki.venturedive.awtest.MapsActivity" />

<TextView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:text="Hello world"
    android:layout_weight="0.4" />

Java代码:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_maps);
    // Obtain the SupportMapFragment and get notified when the map is ready to be used.
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.map);
    mapFragment.getMapAsync(this);
}

在图2中,我(用户将)无法看到格陵兰岛上方的北极海洋,同样底部区域将会丢失,如图3所示.

有没有人面对这个问题或有没有人知道如何应对它？

任何参考链接或提示将不胜感激.

, .

在经历了与我的头衔相关的SO问题之后,我找不到问题的解决方案.我有一个NullPointerException在mapFragment.getMapAsync.以下是我的MapActivity代码.

package com.example.jerofad.mylocation;
import android.app.FragmentManager;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class MapsActivity extends FragmentActivity implements  OnMapReadyCallback {
    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) this.getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;
        // Add …