[英]How to change the position of My Location Button in Google Maps using android studio
[英]Change position of Google Maps API's “My location” button
我正在使用Google Maps Android API v2,我需要一種方法來確定“我的位置”按鈕的位置。
我得到這樣的“我的位置”按鈕:
GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());
final GoogleMap map = ((SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map)).getMap();
// This gets the button
map.setMyLocationEnabled(true);
您可以獲取“我的位置”按鈕並將其移動,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(左,上,右,下),就可以指示其他視圖可能遮擋的地圖部分。 設置填充會重新定位標准地圖控件,並且相機更新將使用填充區域。
https://developers.google.com/maps/documentation/android/map#map_padding
這可能不是最好的解決方案,但是您可以將自己的按鈕放在地圖上並自己處理。 這將需要以下步驟:
1)將地圖放在frameLayout中,然后在頂部添加按鈕。 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)編輯地圖UI設置,以便在調用setMyLocationEnabled(true)時不會出現該按鈕。 您可以通過map.getUiSettings()完成此操作。 setMyLocationButtonEnabled(false);
3)處理新按鈕的單擊,以模擬提供的按鈕的功能。 例如調用mMap.setMyLocationEnabled(...); 並將地圖平移到當前位置。
希望有幫助,或者希望有人能為您提供更簡單的解決方案;-)
上面已經解釋過了。只是fabLouis的答案中的一小部分。 您也可以從SupportMapFragment獲取地圖視圖。
/**
* 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);
}
我不希望看到其他人正在使用的這些魔術視圖ID,我建議使用標簽來查找MapView
的子級。
這是將“ 我的位置”按鈕放在“ 縮放”控件上方的解決方案。
// 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());
我使用以下代碼將位置按鈕重新定位到視圖的右下角,從而解決了地圖片段中的此問題,這是我的Maps Activity.java:-
在onCreate()方法中添加以下代碼行,
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapView = mapFragment.getView();
mapFragment.getMapAsync(this);
這是onMapReady()代碼:-
@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);
}
}
希望能解決您的問題。 謝謝。
請參閱下面的方法。 它位於擴展SupportMapFragment的類內。 它獲取按鈕的容器視圖,並將其顯示在水平居中的底部。
/**
* 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);
}
首先,獲取Google Map View:
View mapView = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getView();
然后找到MyLocation按鈕(來自Android Studio調試器的ID):
View btnMyLocation = ((View) mapView.findViewById(1).getParent()).findViewById(2);
最后,只需為MyLocation按鈕設置新的RelativeLayout參數(在這種情況下,將父項右對齊+垂直居中):
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);
繁榮! 現在您可以根據需要移動它了;)
如果您只想啟用位置指示(藍色點),但不需要默認的“我的位置”按鈕:
mGoogleMap.setMyLocationEnabled(true);
mGoogleMap.getUiSettings().setMyLocationButtonEnabled(false);
這樣,您還可以在所需的位置繪制自己的按鈕,而無需使用諸如mapView.findViewById(1).getParent())
這樣的奇怪內容。
我有同樣的問題。 我最終使用了層次結構查看器來識別用於顯示按鈕的視圖並對其進行了操作。 我知道很駭人,但找不到其他方法。
要使此工作正常,需要進行一些努力。 但是我做到了,並且在此過程中還開始移動縮放按鈕。 這是我的完整代碼:
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);
}
}
解決此問題的一種方法。 刪除默認按鈕並創建自己的按鈕。 在OnCreate語句中添加以下內容:
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));
}
});
試試這個代碼
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);
}
@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android:layout_marginTop =“?attr / actionBarSize”中添加了一行
將此用於右下位置
map.setMyLocationEnabled(true);
map.setPadding(0,1600,0,0);
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