Java 谷歌地图通过wifi初始化位置
我想实现几件事:Java 谷歌地图通过wifi初始化位置,java,android,google-maps-android-api-2,Java,Android,Google Maps Android Api 2,我想实现几件事: 当活动创建时,谷歌地图将显示基于wifi的估计位置… 我如何实现它 我想获得用户在谷歌地图上触摸到的位置的名称… 我读到我可以用这个方法实现它,但是用这个方法我只能得到用户接触的地方的纬度和经度: @Override public void onMapClick(LatLng point) { // TODO Auto-generated method stub } 我想让用户在谷歌地图中搜索地点,有什么方法可以实现吗 这是我迄今为止的活动: import java
我如何实现它
我读到我可以用这个方法实现它,但是用这个方法我只能得到用户接触的地方的纬度和经度:
@Override
public void onMapClick(LatLng point) {
// TODO Auto-generated method stub
}
import java.lang.ref.WeakReference;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnMarkerDragListener;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.View;
import android.view.ViewParent;
import android.widget.ImageView;
import android.widget.Toast;
public class itemSaleActivity extends FragmentActivity {
private static Context app;
private static GoogleMap map;
static final LatLng HAMBURG = new LatLng(53.558, 9.927);
private static final int LOAD_COORD = 0;
private ImageView pic;
private LocationHandler mHandler;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Set View to register.xml
setContentView(R.layout.itemsale);
app = getApplicationContext();
Bundle extras = getIntent().getExtras();
byte[] byteArray = extras.getByteArray("picture");
Bitmap bmp = BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length);
pic = (ImageView) findViewById(R.id.itemImage);
pic.setImageBitmap(bmp);
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
//Marker hamburg = map.addMarker(new MarkerOptions().position(HAMBURG).title("Hamburg"));
mHandler = new LocationHandler(this);
OnMarkerDragListener markerDragListener = new OnMarkerDragListener() {
@Override
public void onMarkerDragStart(Marker marker) {
// Called when the marker drag is started
}
@Override
public void onMarkerDragEnd(Marker marker) {
// Called when the marker is dropped down.
double[] coords = null;
coords[0] = marker.getPosition().latitude;
coords[1] = marker.getPosition().longitude;
RestoreUIwithSavedLocation(coords);
Toast.makeText(getApplicationContext(),"Pin Dropped at: " + coords[0] + ", " + coords[1]+marker.getTitle() , Toast.LENGTH_LONG).show();
}
@Override
public void onMarkerDrag(Marker marker) {
}
};
map.setOnMarkerDragListener(markerDragListener);
View titleView = getWindow().findViewById(android.R.id.title);
if (titleView != null) {
ViewParent parent = titleView.getParent();
if (parent != null && (parent instanceof View)) {
View parentView = (View)parent;
parentView.setVisibility(View.GONE);
}
}
// You can also assign the title programmatically by passing a
// CharSequence or resource id.
}
private void RestoreUIwithSavedLocation(double[] coordsArray) {
Message.obtain(mHandler, LOAD_COORD, coordsArray).sendToTarget();
}
static class LocationHandler extends Handler {
WeakReference<Activity> mActivity;
public LocationHandler(Activity activity) {
mActivity = new WeakReference<Activity>(activity);
}
public void handleMessage(Message msg) {
Activity contextActivity = mActivity.get();
switch ((int)msg.what) {
case LOAD_COORD:
map.clear();
double[] coordArray = (double[])msg.obj;
Marker marker = map.addMarker(new MarkerOptions().position(new LatLng(coordArray[0], coordArray[1])));
map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(coordArray[0], coordArray[1]), 18));
map.animateCamera(CameraUpdateFactory.zoomTo(18), 2000, null);
marker.setDraggable(true);
String s = Double.toString(coordArray[0]) + ", " + Double.toString(coordArray[1]);
Toast.makeText(app,"in the case"+s , Toast.LENGTH_LONG).show();
break;
}
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<ImageView
android:id="@+id/itemImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:src="@drawable/logo" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="400dp"
android:layout_marginTop="10dp"
android:layout_weight="66496.79"
android:orientation="horizontal" >
<fragment
android:id="@+id/map"
class="com.google.android.gms.maps.MapFragment"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginRight="150dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="170dp"
android:orientation="vertical" >
<Button
android:id="@+id/messageBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="fffff" />
<Button
android:id="@+id/call"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="ffff" />
<Button
android:id="@+id/sms"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/button1"
android:layout_centerVertical="true"
android:text="ffff" />
<Button
android:id="@+id/email"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/button1"
android:layout_centerVertical="true"
android:text="fffff" />
<Button
android:id="@+id/navigate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/button1"
android:layout_alignParentEnd="false"
android:layout_alignParentStart="false"
android:layout_below="@+id/button1"
android:layout_marginTop="14dp"
android:text="ffffffffff" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
import java.lang.ref.WeakReference;
导入com.google.android.gms.maps.CameraUpdateFactory;
导入com.google.android.gms.maps.GoogleMap;
导入com.google.android.gms.maps.GoogleMap.OnMarkerDragListener;
导入com.google.android.gms.maps.MapFragment;
导入com.google.android.gms.maps.model.BitmapDescriptorFactory;
导入com.google.android.gms.maps.model.LatLng;
导入com.google.android.gms.maps.model.Marker;
导入com.google.android.gms.maps.model.MarkerOptions;
导入android.app.Activity;
导入android.content.Context;
导入android.graphics.Bitmap;
导入android.graphics.BitmapFactory;
导入android.os.Bundle;
导入android.os.Handler;
导入android.os.Message;
导入android.support.v4.app.FragmentActivity;
导入android.util.Log;
导入android.view.view;
导入android.view.ViewParent;
导入android.widget.ImageView;
导入android.widget.Toast;
公共类itemSaleActivity扩展了FragmentActivity{
私有静态上下文应用程序;
私有静态谷歌地图;
静态最终车床汉堡=新车床(53.558,9.927);
私有静态最终整数负载_坐标=0;
私人图像视图pic;
私人场所;
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//将视图设置为register.xml
setContentView(R.layout.itemsale);
app=getApplicationContext();
Bundle extras=getIntent().getExtras();
byte[]byteArray=extras.getByteArray(“图片”);
位图bmp=BitmapFactory.decodeByteArray(byteArray,0,byteArray.length);
pic=(ImageView)findViewById(R.id.itemImage);
pic.setImageBitmap(bmp);
map=((MapFragment)getFragmentManager().findFragmentById(R.id.map)).getMap();
//Marker hamburg=map.addMarker(新MarkerOptions().position(hamburg.title)(“hamburg”);
mHandler=新的LocationHandler(此);
onmarkerdragstener-markerdragstener=new-onmarkerdragstener(){
@凌驾
MarkerDragStart上的公共空白(标记){
//开始拖动标记时调用
}
@凌驾
MarkerDragend上的公共空白(标记){
//在放下标记时调用。
double[]坐标=null;
coords[0]=marker.getPosition().纬度;
coords[1]=marker.getPosition().经度;
恢复与保存位置(coords);
Toast.makeText(getApplicationContext(),“Pin掉在:“+coords[0]+”,“+coords[1]+marker.getTitle(),Toast.LENGTH_LONG).show();
}
@凌驾
MarkerDrag上的公共空白(标记){
}
};
setOnMarkerDragListener(markerDragListener);
查看titleView=getWindow().findViewById(android.R.id.title);
如果(标题视图!=null){
ViewParent=titleView.getParent();
if(父级!=null&(视图的父级实例)){
视图父视图=(视图)父视图;
parentView.setVisibility(View.GONE);
}
}
//您还可以通过传递
//字符序列或资源id。
}
私有void RestoreUIwithSavedLocation(双[]坐标){
获取(mHandler,LOAD_COORD,coordsArray).sendToTarget();
}
静态类LocationHandler扩展了处理程序{
弱引用性;
公共位置处理程序(活动){
mActivity=新的WeakReference(活动);
}
公共无效handleMessage(消息消息消息){
Activity contextActivity=mActivity.get();
开关((int)msg.what){
壳体载荷协调:
map.clear();
double[]coordArray=(double[])msg.obj;
Marker Marker=map.addMarker(新的MarkerOptions().position(新的LatLng(coordArray[0],coordArray[1]));
map.moveCamera(CameraUpdateFactory.newLatLngZoom(新LatLng(coordArray[0],coordArray[1]),18));
animateCamera(CameraUpdateFactory.zoomTo(18),2000年,空);
marker.SetDragable(真);
字符串s=Double.toString(coordArray[0])+“,”+Double.toString(coordArray[1]);
Toast.makeText(应用程序,“在案例中”+s,Toast.LENGTH_LONG.show();
打破
}
}
}
}
这是我到目前为止的xml文件:
import java.lang.ref.WeakReference;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnMarkerDragListener;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.View;
import android.view.ViewParent;
import android.widget.ImageView;
import android.widget.Toast;
public class itemSaleActivity extends FragmentActivity {
private static Context app;
private static GoogleMap map;
static final LatLng HAMBURG = new LatLng(53.558, 9.927);
private static final int LOAD_COORD = 0;
private ImageView pic;
private LocationHandler mHandler;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Set View to register.xml
setContentView(R.layout.itemsale);
app = getApplicationContext();
Bundle extras = getIntent().getExtras();
byte[] byteArray = extras.getByteArray("picture");
Bitmap bmp = BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length);
pic = (ImageView) findViewById(R.id.itemImage);
pic.setImageBitmap(bmp);
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
//Marker hamburg = map.addMarker(new MarkerOptions().position(HAMBURG).title("Hamburg"));
mHandler = new LocationHandler(this);
OnMarkerDragListener markerDragListener = new OnMarkerDragListener() {
@Override
public void onMarkerDragStart(Marker marker) {
// Called when the marker drag is started
}
@Override
public void onMarkerDragEnd(Marker marker) {
// Called when the marker is dropped down.
double[] coords = null;
coords[0] = marker.getPosition().latitude;
coords[1] = marker.getPosition().longitude;
RestoreUIwithSavedLocation(coords);
Toast.makeText(getApplicationContext(),"Pin Dropped at: " + coords[0] + ", " + coords[1]+marker.getTitle() , Toast.LENGTH_LONG).show();
}
@Override
public void onMarkerDrag(Marker marker) {
}
};
map.setOnMarkerDragListener(markerDragListener);
View titleView = getWindow().findViewById(android.R.id.title);
if (titleView != null) {
ViewParent parent = titleView.getParent();
if (parent != null && (parent instanceof View)) {
View parentView = (View)parent;
parentView.setVisibility(View.GONE);
}
}
// You can also assign the title programmatically by passing a
// CharSequence or resource id.
}
private void RestoreUIwithSavedLocation(double[] coordsArray) {
Message.obtain(mHandler, LOAD_COORD, coordsArray).sendToTarget();
}
static class LocationHandler extends Handler {
WeakReference<Activity> mActivity;
public LocationHandler(Activity activity) {
mActivity = new WeakReference<Activity>(activity);
}
public void handleMessage(Message msg) {
Activity contextActivity = mActivity.get();
switch ((int)msg.what) {
case LOAD_COORD:
map.clear();
double[] coordArray = (double[])msg.obj;
Marker marker = map.addMarker(new MarkerOptions().position(new LatLng(coordArray[0], coordArray[1])));
map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(coordArray[0], coordArray[1]), 18));
map.animateCamera(CameraUpdateFactory.zoomTo(18), 2000, null);
marker.setDraggable(true);
String s = Double.toString(coordArray[0]) + ", " + Double.toString(coordArray[1]);
Toast.makeText(app,"in the case"+s , Toast.LENGTH_LONG).show();
break;
}
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<ImageView
android:id="@+id/itemImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:src="@drawable/logo" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="400dp"
android:layout_marginTop="10dp"
android:layout_weight="66496.79"
android:orientation="horizontal" >
<fragment
android:id="@+id/map"
class="com.google.android.gms.maps.MapFragment"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginRight="150dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="170dp"
android:orientation="vertical" >
<Button
android:id="@+id/messageBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="fffff" />
<Button
android:id="@+id/call"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="ffff" />
<Button
android:id="@+id/sms"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/button1"
android:layout_centerVertical="true"
android:text="ffff" />
<Button
android:id="@+id/email"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/button1"
android:layout_centerVertical="true"
android:text="fffff" />
<Button
android:id="@+id/navigate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/button1"
android:layout_alignParentEnd="false"
android:layout_alignParentStart="false"
android:layout_below="@+id/button1"
android:layout_marginTop="14dp"
android:text="ffffffffff" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
重要提示:不要忘记在活动/片段暂停时调用
GoogleMap.setMyLocationEnabled(false)
搜索触摸位置的名称(未测试):
MyActivity扩展了活动实现OnMapClickListener{
地理编码器;
@凌驾