我正在使用 Google Maps Android API v2，我需要一种方法来确定“我的位置”按钮的位置。
我得到这样的“我的位置”按钮：
GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());
final GoogleMap map = ((SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map)).getMap();
// This gets the button
map.setMyLocationEnabled(true);
您可以获取“我的位置”按钮并移动它，例如：
public class MapFragment extends SupportMapFragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View mapView = super.onCreateView(inflater, container, savedInstanceState);
// Get the button view
View locationButton = ((View) mapView.findViewById(1).getParent()).findViewById(2);
// and next place it, for exemple, on bottom right (as Google Maps app)
RelativeLayout.LayoutParams rlp = (RelativeLayout.LayoutParams) locationButton.getLayoutParams();
// position on right bottom
rlp.addRule(RelativeLayout.ALIGN_PARENT_TOP, 0);
rlp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
rlp.setMargins(0, 0, 30, 30);
}
}
只需使用 GoogleMap.setPadding(left, top, right, bottom)，它允许您指示地图中可能被其他视图遮挡的部分。设置填充重新定位标准地图控件，相机更新将使用填充区域。
https://developers.google.com/maps/documentation/android/map#map_padding
这可能不是最好的解决方案，但您可以将自己的按钮放在地图上并自己处理。它将采取以下措施：-
1) 将地图放入 frameLayout 并在顶部添加按钮。例如
<FrameLayout
android:id="@+id/mapFrame"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<fragment
xmlns:map="http://schemas.android.com/apk/res-auto"
android:id="@+id/mapFragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
class="com.google.android.gms.maps.MapFragment"
map:mapType="normal"
map:uiCompass="true" />
<ImageButton
android:id="@+id/myMapLocationButton"
android:layout_width="36dp"
android:layout_height="36dp"
android:layout_gravity="bottom|right"
android:background="@drawable/myMapLocationDrawable"
android:contentDescription="My Location" />
</FrameLayout>
2) 编辑地图 UI 设置，这样当您调用 setMyLocationEnabled(true) 时按钮不会出现。您可以通过 map.getUiSettings() 执行此操作。setMyLocationButtonEnabled(false);
3）处理新按钮的单击以模拟提供的按钮的作用。例如调用 mMap.setMyLocationEnabled(...); 并将地图平移到当前位置。
希望对您有所帮助，或者希望有人为您提供更简单的解决方案；-)
上面已经解释过了。只是对 fabLouis 的回答的一个小补充。您也可以从 SupportMapFragment 获取地图视图。
/**
* Move the button
*/
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().
findFragmentById(R.id.map);
View mapView = mapFragment.getView();
if (mapView != null &&
mapView.findViewById(1) != null) {
// Get the button view
View locationButton = ((View) mapView.findViewById(1).getParent()).findViewById(2);
// and next place it, on bottom right (as Google Maps app)
RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams)
locationButton.getLayoutParams();
// position on right bottom
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, 0);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
layoutParams.setMargins(0, 0, 30, 30);
}
我不喜欢看到其他人正在使用的这些神奇视图 ID，我建议使用标签来查找MapViews 孩子。
这是我将“我的位置”按钮放在缩放控件上方的解决方案。
// Get map views
View location_button =_mapView.findViewWithTag("GoogleMapMyLocationButton");
View zoom_in_button = _mapView.findViewWithTag("GoogleMapZoomInButton");
View zoom_layout = (View) zoom_in_button.getParent();
// adjust location button layout params above the zoom layout
RelativeLayout.LayoutParams location_layout = (RelativeLayout.LayoutParams) location_button.getLayoutParams();
location_layout.addRule(RelativeLayout.ALIGN_PARENT_TOP, 0);
location_layout.addRule(RelativeLayout.ABOVE, zoom_layout.getId());
我通过使用下面的代码将我的位置按钮重新定位到视图的右下角解决了我的地图片段中的这个问题，这是我的 Maps Activity.java ：-
在 onCreate() 方法中添加这行代码，
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapView = mapFragment.getView();
mapFragment.getMapAsync(this);
这是 onMapReady() 代码：-
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
mMap.setMyLocationEnabled(true);
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
if (mapView != null &&
mapView.findViewById(Integer.parseInt("1")) != null) {
// Get the button view
View locationButton = ((View) mapView.findViewById(Integer.parseInt("1")).getParent()).findViewById(Integer.parseInt("2"));
// and next place it, on bottom right (as Google Maps app)
RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams)
locationButton.getLayoutParams();
// position on right bottom
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, 0);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
layoutParams.setMargins(0, 0, 30, 30);
}
}
我希望，这将解决您的问题。谢谢。
首先，获取谷歌地图视图：
View mapView = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getView();
然后找到 MyLocation 按钮（来自 Android Studio 调试器的 ID）：
View btnMyLocation = ((View) mapView.findViewById(1).getParent()).findViewById(2);
最后，只需为 MyLocation 按钮设置新的 RelativeLayout 参数（在这种情况下垂直对齐父级+中心）：
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(80,80); // size of button in dp
params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
params.addRule(RelativeLayout.CENTER_VERTICAL, RelativeLayout.TRUE);
params.setMargins(0, 0, 20, 0);
btnMyLocation.setLayoutParams(params);
繁荣！现在你可以随意移动它了；）
如果您只想启用位置指示（蓝点）但不需要默认的“我的位置”按钮：
mGoogleMap.setMyLocationEnabled(true);
mGoogleMap.getUiSettings().setMyLocationButtonEnabled(false);
这样你也可以在你想要的地方绘制你自己的按钮，而不用像这样奇怪的东西mapView.findViewById(1).getParent())。
请参阅下面的方法。它存在于扩展 SupportMapFragment 的类中。它获取按钮的容器视图并将其显示在底部，水平居中。
/**
* Move my position button at the bottom of map
*/
private void resetMyPositionButton()
{
//deep paths for map controls
ViewGroup v1 = (ViewGroup)this.getView();
ViewGroup v2 = (ViewGroup)v1.getChildAt(0);
ViewGroup v3 = (ViewGroup)v2.getChildAt(0);
ViewGroup v4 = (ViewGroup)v3.getChildAt(1);
//my position button
View position = (View)v4.getChildAt(0);
int positionWidth = position.getLayoutParams().width;
int positionHeight = position.getLayoutParams().height;
//lay out position button
RelativeLayout.LayoutParams positionParams = new RelativeLayout.LayoutParams(positionWidth,positionHeight);
int margin = positionWidth/5;
positionParams.setMargins(0, 0, 0, margin);
positionParams.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
positionParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
position.setLayoutParams(positionParams);
}
让这个工作有点困难。但我完成了，在这个过程中也开始移动缩放按钮。这是我的完整代码：
package com.squirrel.hkairpollution;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RelativeLayout;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.UiSettings;
import com.google.android.gms.maps.model.LatLng;
public class MySupportMapFragment extends SupportMapFragment {
private static final String TAG = HKAirPollution.TAG;
public MySupportMapFragment() {
return;
}
@Override
public View onCreateView(LayoutInflater arg0, ViewGroup arg1, Bundle arg2) {
Log.v(TAG, "In overridden onCreateView.");
View v = super.onCreateView(arg0, arg1, arg2);
Log.v(TAG, "Initialising map.");
initMap();
return v;
}
@Override
public void onViewCreated (View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
resetButtons();
}
private void initMap(){
UiSettings settings = getMap().getUiSettings();
settings.setAllGesturesEnabled(true);
settings.setMyLocationButtonEnabled(true);
LatLng latLong = new LatLng(22.320542, 114.185715);
getMap().moveCamera(CameraUpdateFactory.newLatLngZoom(latLong,11));
}
/**
* Move my position button at the bottom of map
*/
private void resetButtons()
{
// Get a reference to the zoom buttons and the position button.
ViewGroup v1 = (ViewGroup)this.getView();
ViewGroup v2 = (ViewGroup)v1.getChildAt(0);
ViewGroup v3 = (ViewGroup)v2.getChildAt(0);
ViewGroup v4 = (ViewGroup)v3.getChildAt(1);
// The My Position button
View position = (View)v4.getChildAt(0);
int positionWidth = position.getLayoutParams().width;
int positionHeight = position.getLayoutParams().height;
// Lay out the My Position button.
RelativeLayout.LayoutParams positionParams = new RelativeLayout.LayoutParams(positionWidth,positionHeight);
int margin = positionWidth/5;
positionParams.setMargins(0, 0, 0, margin);
positionParams.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
positionParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
position.setLayoutParams(positionParams);
// The Zoom buttons
View zoom = (View)v4.getChildAt(2);
int zoomWidth = zoom.getLayoutParams().width;
int zoomHeight = zoom.getLayoutParams().height;
// Lay out the Zoom buttons.
RelativeLayout.LayoutParams zoomParams = new RelativeLayout.LayoutParams(zoomWidth, zoomHeight);
zoomParams.setMargins(0, 0, 0, margin);
zoomParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
zoomParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
zoom.setLayoutParams(zoomParams);
}
}
我有同样的问题。我最终使用 Hierarchy Viewer 来识别用于显示按钮的视图并对其进行操作。非常hacky，我知道，但无法找出不同的方法。
处理这个问题的一种方法。删除默认按钮并创建自己的。在 OnCreate 语句中添加下一个：
GoogleMap mMap = ((MapView) inflatedView.findViewById(R.id.mapview)).getMap();
LocationManager locationManager =
(LocationManager)getActivity().getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
String provider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
locationManager.requestLocationUpdates(provider, 2000, 1, this);
mMap.setMyLocationEnabled(true);
mMap.getUiSettings().setMyLocationButtonEnabled(false); // delete default button
Imagebutton imgbtn = (ImageButton) view.findViewById(R.id.imgbutton); //your button
imgbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new
LatLng(location.getLatitude(),
location.getLongitude()), 15));
}
});
试试这个代码
private void resetMyPositionButton()
{
Fragment fragment = ( (SupportMapFragment) getSupportFragmentManager().findFragmentById( R.id.map ) );
ViewGroup v1 = (ViewGroup) fragment.getView();
ViewGroup v2 = (ViewGroup)v1.getChildAt(0);
ViewGroup v3 = (ViewGroup)v2.getChildAt(2);
View position = (View)v3.getChildAt(0);
int positionWidth = position.getLayoutParams().width;
int positionHeight = position.getLayoutParams().height;
//lay out position button
RelativeLayout.LayoutParams positionParams = new RelativeLayout.LayoutParams(positionWidth,positionHeight);
int margin = positionWidth/5;
positionParams.setMargins(margin, 0, 0, margin);
positionParams.addRule(RelativeLayout.CENTER_VERTICAL, RelativeLayout.TRUE);
positionParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
position.setLayoutParams(positionParams);
}
之前，您可以删除按钮的旧规则：
@Override
public void onMapReady(final GoogleMap googleMap) {
this.map = googleMap;
// Show location button
View locationButton = ((View) mapView.findViewById(Integer.parseInt("1")).getParent()).findViewById(Integer.parseInt("2"));
RelativeLayout.LayoutParams rlp = (RelativeLayout.LayoutParams) locationButton.getLayoutParams();
// position on right bottom
Log.l(Arrays.toString(rlp.getRules()), L.getLogInfo());
int[] ruleList = rlp.getRules();
for (int i = 0; i < ruleList.length; i ++) {
rlp.removeRule(i);
}
Log.l(Arrays.toString(rlp.getRules()), L.getLogInfo());
//Do what you want to move this location button:
rlp.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
rlp.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
}
您可以使用以下方法：
View myLocationParent = ((View) getView().findViewById(1).getParent());
View myLocationParentParent = ((View) myLocationParent.getParent());
// my position button
int positionWidth = myLocationParent.getLayoutParams().width;
int positionHeight = myLocationParent.getLayoutParams().height;
// lay out position button
FrameLayout.LayoutParams positionParams = new FrameLayout.LayoutParams(
positionWidth, positionHeight);
positionParams.setMargins(0, 100, 0, 0);
myLocationParent.setLayoutParams(positionParams);
我在片段中添加了一行 android:layout_marginTop="?attr/actionBarSize" 它帮助了我
将此用于右下角位置
map.setMyLocationEnabled(true);
map.setPadding(0,1600,0,0);