我无法找到如何拦截在新的谷歌地图API第2版地图触摸的例子。
我需要当用户触摸地图以停止一个线程（在我的当前位置在地图的中心）就知道了。
Answer 1:
@ape这里就如何截取地图点击写一个答案，但我需要拦截触摸，然后他建议在其答案的评论，下面的链接如何处理onTouch事件地图在谷歌地图API第2？ 。
这种解决方案似乎是一个可行的解决方法，但建议的代码是不完整的。 出于这个原因我重写和测试它，现在它的工作原理。
这是工作的代码：
我创建的类MySupportMapFragment.java
import com.google.android.gms.maps.SupportMapFragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class MySupportMapFragment extends SupportMapFragment {
public View mOriginalContentView;
public TouchableWrapper mTouchView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
mOriginalContentView = super.onCreateView(inflater, parent, savedInstanceState);
mTouchView = new TouchableWrapper(getActivity());
mTouchView.addView(mOriginalContentView);
return mTouchView;
}
@Override
public View getView() {
return mOriginalContentView;
}
}
我甚至创建的类TouchableWrapper.java：
import android.content.Context;
import android.view.MotionEvent;
import android.widget.FrameLayout;
public class TouchableWrapper extends FrameLayout {
public TouchableWrapper(Context context) {
super(context);
}
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
MainActivity.mMapIsTouched = true;
break;
case MotionEvent.ACTION_UP:
MainActivity.mMapIsTouched = false;
break;
}
return super.dispatchTouchEvent(event);
}
}
在布局我宣布这样说：
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mapFragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_below="@+id/buttonBar"
class="com.myFactory.myApp.MySupportMapFragment"
/>
只是在我只写了以下主要活动测试：
public class MainActivity extends FragmentActivity {
public static boolean mMapIsTouched = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
Answer 2:
这里有一个简单的解决方案根据用户的选择来获得位置（点击地图选项）
googleMap.setOnMapClickListener(new OnMapClickListener() {
@Override
public void onMapClick(LatLng arg0) {
// TODO Auto-generated method stub
Log.d("arg0", arg0.latitude + "-" + arg0.longitude);
}
});
Answer 3:
此功能和许多现在支持:)
这是开发人员注意事项（问题4636）：
在2016年8月发布引入了一组新的相机变化的听众中的摄像机运动的开始，持续和结束事件。 你也可以看到为什么摄像机移动，无论它是由用户姿势引起的，内置的API动画或开发人员控制的运动。 有关详细信息，请参阅指南相机改变事件： https://developers.google.com/maps/documentation/android-api/events#camera-change-events
另外，请参见发行说明： https://developers.google.com/maps/documentation/android-api/releases#august_1_2016
这里是从文档页面的代码片段
public class MyCameraActivity extends FragmentActivity implements
OnCameraMoveStartedListener,
OnCameraMoveListener,
OnCameraMoveCanceledListener,
OnCameraIdleListener,
OnMapReadyCallback {
private GoogleMap mMap;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_camera);
SupportMapFragment mapFragment =
(SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(GoogleMap map) {
mMap = map;
mMap.setOnCameraIdleListener(this);
mMap.setOnCameraMoveStartedListener(this);
mMap.setOnCameraMoveListener(this);
mMap.setOnCameraMoveCanceledListener(this);
// Show Sydney on the map.
mMap.moveCamera(CameraUpdateFactory
.newLatLngZoom(new LatLng(-33.87365, 151.20689), 10));
}
@Override
public void onCameraMoveStarted(int reason) {
if (reason == OnCameraMoveStartedListener.REASON_GESTURE) {
Toast.makeText(this, "The user gestured on the map.",
Toast.LENGTH_SHORT).show();
} else if (reason == OnCameraMoveStartedListener
.REASON_API_ANIMATION) {
Toast.makeText(this, "The user tapped something on the map.",
Toast.LENGTH_SHORT).show();
} else if (reason == OnCameraMoveStartedListener
.REASON_DEVELOPER_ANIMATION) {
Toast.makeText(this, "The app moved the camera.",
Toast.LENGTH_SHORT).show();
}
}
@Override
public void onCameraMove() {
Toast.makeText(this, "The camera is moving.",
Toast.LENGTH_SHORT).show();
}
@Override
public void onCameraMoveCanceled() {
Toast.makeText(this, "Camera movement canceled.",
Toast.LENGTH_SHORT).show();
}
@Override
public void onCameraIdle() {
Toast.makeText(this, "The camera has stopped moving.",
Toast.LENGTH_SHORT).show();
}
}
Answer 4:
我创建了分层布局中的MapFragment的顶空的FrameLayout。 然后我把这个观点的onTouchListener所以我知道什么时候该图已被触摸，但由此在触摸大干快上的地图通过返回false。
<FrameLayout
android:id="@+id/map_touch_layer"
android:layout_width="match_parent"
android:layout_height="match_parent" />
mapTouchLayer.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
Utils.logDebug(TAG, "Map touched!");
timeLastTouched = System.currentTimeMillis();
return false; // Pass on the touch to the map or shadow layer.
}
});
Answer 5:
高科有很大的答案，看到许多upvotes我想可能有一些需要另一种实现方式：
我需要它使用监听器 ，所以我可以在触摸反应，不必不断地检查它。
我把所有能像这样使用一个类：
mapFragment.setNonConsumingTouchListener(new TouchSupportMapFragment.NonConsumingTouchListener() {
@Override
public void onTouch(MotionEvent motionEvent) {
switch (motionEvent.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
// map is touched
break;
case MotionEvent.ACTION_UP:
// map touch ended
break;
default:
break;
// use more cases if needed, for example MotionEvent.ACTION_MOVE
}
}
});
其中mapfragment需要在布局XML需要该线型TouchSupportMapFragment的和：
<fragment class="de.bjornson.maps.TouchSupportMapFragment"
...
这里是类：
package de.bjornson.maps;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import com.google.android.gms.maps.SupportMapFragment;
public class TouchSupportMapFragment extends SupportMapFragment {
public View mOriginalContentView;
public TouchableWrapper mTouchView;
private NonConsumingTouchListener mListener;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
mOriginalContentView = super.onCreateView(inflater, parent, savedInstanceState);
mTouchView = new TouchableWrapper(getActivity());
mTouchView.addView(mOriginalContentView);
return mTouchView;
}
@Override
public View getView() {
return mOriginalContentView;
}
public void setNonConsumingTouchListener(NonConsumingTouchListener listener) {
mListener = listener;
}
public interface NonConsumingTouchListener {
boolean onTouch(MotionEvent motionEvent);
}
public class TouchableWrapper extends FrameLayout {
public TouchableWrapper(Context context) {
super(context);
}
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
if (mListener != null) {
mListener.onTouch(event);
}
return super.dispatchTouchEvent(event);
}
}
}
Answer 6:
https://developers.google.com/maps/documentation/android/reference/com/google/android/gms/maps/GoogleMap.OnMapClickListener
看到此链接。 实现该接口，并在填写onMapClick()你需要方法或任何与设置onMapClickListener向右执行。
public class YourActivity extends Activity implements OnMapClickListener {
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
...
my_map.setOnMapClickListener(this)
...
}
public void onMapClick (LatLng point) {
// Do Something
}
}
Answer 7:
// Initializing
markerPoints = new ArrayList<LatLng>();
// Getting reference to SupportMapFragment of the activity_main
SupportMapFragment sfm = (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map);
// Getting Map for the SupportMapFragment
map = sfm.getMap();
// Enable MyLocation Button in the Map
map.setMyLocationEnabled(true);
// Setting onclick event listener for the map
map.setOnMapClickListener(new OnMapClickListener() {
@Override
public void onMapClick(LatLng point) {
// Already two locations
if(markerPoints.size()>1){
markerPoints.clear();
map.clear();
}
// Adding new item to the ArrayList
markerPoints.add(point);
// Creating MarkerOptions
MarkerOptions options = new MarkerOptions();
// Setting the position of the marker
options.position(point);
if(markerPoints.size()==1){
options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
}else if(markerPoints.size()==2){
options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
}
// Add new marker to the Google Map Android API V2
map.addMarker(options);
// Checks, whether start and end locations are captured
if(markerPoints.size() >= 2){
LatLng origin = markerPoints.get(0);
LatLng dest = markerPoints.get(1);
//Do what ever you want with origin and dest
}
}
});
Answer 8:
对于单声道的恋人：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Util;
using Android.Views;
using Android.Widget;
using Android.Gms.Maps;
namespace apcurium.MK.Booking.Mobile.Client.Controls
{
public class TouchableMap : SupportMapFragment
{
public View mOriginalContentView;
public TouchableWrapper Surface;
public override View OnCreateView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState)
{
mOriginalContentView = base.OnCreateView(inflater, parent, savedInstanceState);
Surface = new TouchableWrapper(Activity);
Surface.AddView(mOriginalContentView);
return Surface;
}
public override View View
{
get
{
return mOriginalContentView;
}
}
}
public class TouchableWrapper: FrameLayout {
public event EventHandler<MotionEvent> Touched;
public TouchableWrapper(Context context) :
base(context)
{
}
public TouchableWrapper(Context context, IAttributeSet attrs) :
base(context, attrs)
{
}
public TouchableWrapper(Context context, IAttributeSet attrs, int defStyle) :
base(context, attrs, defStyle)
{
}
public override bool DispatchTouchEvent(MotionEvent e)
{
if (this.Touched != null)
{
this.Touched(this, e);
}
return base.DispatchTouchEvent(e);
}
}
}
Answer 9:
@Gaucho MySupportMapFragment显然将通过一些其它fargment或活性（其中可能有更多的视图元素比地图片段）一起使用。 因此，如何能一个这个事件分派到那里是要使用的下一个片段。 我们是否需要重新写一个接口来做到这一点？
Answer 10:
我有一个更简单的解决方案diferent到TouchableWrapper ，这可与上一个版本的play-services-maps:10.0.1 。 该解决方案只使用地图事件和不使用自定义视图。 不使用过时的功能，将可能有几个版本的支持。
首先，你需要（即asumes是不是由动画都会触发摄像机移动是由用户触发该代码）存储如果地图是由动画或通过用户输入移动的标志变量
GoogleMap googleMap;
boolean movedByApi = false;
你fragament或活动必须实现GoogleMap.OnMapReadyCallback ， GoogleMap.CancelableCallback
public class ActivityMap extends Activity implements OnMapReadyCallback, GoogleMap.CancelableCallback{
...
}
这迫使你实现方法onMapReady ， onFinish ， onCancel 。 而在GoogleMap对象onMapReady必须设置摄像机移动的事件监听
@Override
public void onMapReady(GoogleMap mMap) {
//instantiate the map
googleMap = mMap;
[...] // <- set up your map
googleMap.setOnCameraMoveListener(new GoogleMap.OnCameraMoveListener() {
@Override
public void onCameraMove() {
if (movedByApi) {
Toast.makeText(ActivityMap.this, "Moved by animation", Toast.LENGTH_SHORT).show();
[...] // <-- do something whe you want to handle api camera movement
} else {
Toast.makeText(ActivityMap.this, "Moved by user", Toast.LENGTH_SHORT).show();
[...] // <-- do something whe you want to handle user camera movement
}
}
});
}
@Override
public void onFinish() {
//is called when the animation is finished
movedByApi = false;
}
@Override
public void onCancel() {
//is called when the animation is canceled (the user drags the map or the api changes to a ne position)
movedByApi = false;
}
最后它的尤为明显，如果你创建一个通用的功能，用于移动地图
public void moveMapPosition(CameraUpdate cu, boolean animated){
//activate the flag notifying that the map is being moved by the api
movedByApi = true;
//if its not animated, just do instant move
if (!animated) {
googleMap.moveCamera(cu);
//after the instant move, clear the flag
movedByApi = false;
}
else
//if its animated, animate the camera
googleMap.animateCamera(cu, this);
}
或者只是你移动地图每次启动标志动画之前
movedByApi = true;
googleMap.animateCamera(cu, this);
我希望这有帮助！
文章来源: Google Maps Android API v2 - detect touch on map
