java 如何在 Google Maps Android API v2 中向 MapFragment 添加自定义控件？
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How to add custom controls to MapFragment in Google Maps Android API v2?
提问by Tomá? Linhart
I have SupportMapFragment and I need to add custom controls into it for changing a map type. Calling getView(), I get NoSaveStateFramelayout and I don't think it is a good idea to add it directly into it or its children.
我有 SupportMapFragment，我需要向其中添加自定义控件以更改地图类型。调用 getView()，我得到 NoSaveStateFramelayout，我认为将它直接添加到它或其子项中不是一个好主意。
What is the best way how can I can add a button over my map for changing the map type?
如何在地图上添加按钮以更改地图类型的最佳方法是什么？
回答by Tomá? Linhart
I have decided to override onCreateView and encapsulate the map in the code.
我决定覆盖 onCreateView 并将地图封装在代码中。
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup viewGroup, Bundle bundle) {
View mapView = super.onCreateView(inflater, viewGroup, bundle);
RelativeLayout view = new RelativeLayout(getActivity());
view.addView(mapView, new RelativeLayout.LayoutParams(-1, -1));
// working with view
return view;
}
And it works as I needed.
它可以按我的需要工作。
回答by Emil Adz
Try to put your map inside of a Frame Layout with Relative layout together when the map and the relative layout match_parent for the width and the height. In the relative layout place all your desired extended controls. That way the will sit on top on the map.
当地图和相对布局 match_parent 的宽度和高度时，尝试将地图放在具有相对布局的框架布局中。在相对布局中放置所有所需的扩展控件。这样，将坐在地图的顶部。
some thing like that:
类似的事情：
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/title_gray_background" >
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:paddingLeft="10dp"
android:text="@string/tasks"
android:paddingRight="3dp"
android:textStyle="bold"
android:textSize="18sp"
android:textColor="@color/my_even_darker_gray" />
<Button
android:id="@+id/bLocateMe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_centerVertical="true"
android:layout_marginRight="3dp"
android:background="@drawable/locate_me_button_selector"
android:clickable="true"
android:onClick="locateMeButtonOnClick"
android:text="@string/locate_me"
android:textColor="@color/my_white" />
</RelativeLayout>
<fragment
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="match_parent" />
</FrameLayout>
回答by I Love Coding
The view returned from onCreateView of MapFragment is a FrameLayout. So let use it, no need to add another layout (we will reduce view hierarchy).
MapFragment 的onCreateView 返回的视图是一个FrameLayout。所以让我们使用它，不需要添加另一个布局（我们将减少视图层次结构）。
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup viewGroup, Bundle bundle) {
FrameLayout mapView = (FrameLayout) super.onCreateView(inflater, viewGroup, bundle);
mapView.add(someView);
return view;
}
回答by nv95
Use this code to add you layout above of the map
使用此代码在地图上方添加布局
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View mapView = super.onCreateView(inflater, container, savedInstanceState);
@SuppressLint("InflateParams")
FrameLayout view = (FrameLayout) inflater.inflate(R.layout.fragment_map, null);
view.addView(mapView, 0, new RelativeLayout.LayoutParams(-1, -1));
return view;
}
回答by Quintin Balsdon
I did the following:
我做了以下事情：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<!--suppress AndroidDomInspection -->
<fragment
android:id="@+id/map"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
/>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
>
<ImageButton
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="10sp"
android:layout_marginTop="10sp"
android:src="@android:drawable/ic_menu_mylocation"
/>
</RelativeLayout>
