如何纪念经纬度在谷歌地图? [英] How to mark the Latitude,Longitude in Google Map ?
问题描述
我使用谷歌地图。我有一个数组,它有多个纬度和经度。我有纬度经度的中心点。所以我想,以纪念所有的经纬度自带10米距离中心点的半径内。
活动code:
LocationManager LM =(LocationManager)getSystemService(Context.LOCATION_SERVICE);
位置位置= lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
双经度= location.getLongitude();
双纬度= location.getLatitude();
的for(int i = 0;我小于10;我++){
//随机纬度和logitude
双[] randomLocation = createRandLocation(纬度,
经度);
//添加标记
MarkerOptions标记=新MarkerOptions()。位置(
新经纬度(randomLocation [0],randomLocation [1]))
.title伪(你好地图+ I);
Log.e(随机,>中+ randomLocation [0] +,
+ randomLocation [1]);
如果(我== 0)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_AZURE));
如果(ⅰ== 1)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
如果(ⅰ== 2)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_CYAN));
如果(我== 3)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
如果(我== 4)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
如果(我== 5)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
如果(我== 6)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_RED));
如果(我== 7)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_ROSE));
如果(我== 8)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_VIOLET));
如果(我== 9)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW));
googleMap.addMarker(标记);
//将摄像机移动到最后的位置与缩放级别
如果(我== 9){
CameraPosition cameraPosition =新CameraPosition.Builder()
的.target(新经纬度(randomLocation [0],
randomLocation [1]))放大(15).build()。
googleMap.animateCamera(CameraUpdateFactory
.newCameraPosition(cameraPosition));
}
}
}赶上(例外五){
e.printStackTrace();
}
}
@覆盖
保护无效onResume(){
super.onResume();
initilizeMap();
}
私人无效initilizeMap(){
如果(GoogleMap的== NULL){
GoogleMap的=((MapFragment)getFragmentManager()。findFragmentById(
R.id.map))的GetMap()。
//如果映射成功与否创建检查
如果(GoogleMap的== NULL){
Toast.makeText(getApplicationContext(),
对不起!无法创建地图,Toast.LENGTH_SHORT)
。显示();
}
}
}
私人双[] createRandLocation(双纬度,经度两倍){
返回新的双[] {纬度+((的Math.random() - 0.5)/ 500),
经度+((的Math.random() - 0.5)/ 500),
150 +((的Math.random() - 0.5)* 10)};
}
}
首先创建圆
您的中心点,如:
圈圈= map.addCircle(新CircleOptions()
.center(新经纬度(centerpointLat,cnterpointLong))
.radius(10)
.strokeColor(Color.RED)
);
现在,找到距离
从圆
您点的中心
并存储到一个阵列
或的ArrayList
这样的:
浮法[]距离=新的浮动[1];
最后的ArrayList<整数GT; ArrayList的=新的ArrayList<整数GT;();
的for(int i = 0;我小于10;我++){
双[] randomLocation = createRandLocation(纬度,
经度);
Location.distanceBetween(randomLocation [0],randomLocation [1],
。circle.getCenter()纬度,circle.getCenter()经度,距离)。
arrayList.add((int)的结果[0]);
}
现在,检查距离
从圆
的中心为< 10这样的:
的for(int i = 0;我小于10;我++){
如果(arrayList.get(ⅰ)所述; circle.getRadius()或(直接提供(圆半径))){
//添加标记属于这里
} 其他 {
//任何信息在这里
}
}
试试这个方法
更新:这是你的活动
公共类BasicMapActivity_new2扩展FragmentActivity工具
LocationListener的,OnMarkerClickListener {
私人GoogleMap的MMAP;
私人LocationManager locationManager;
私人字符串提供商;
双纬度,经度;
圈圈;
@覆盖
保护无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.basic_demo);
setHeaderBackground();
MMAP =((SupportMapFragment)getSupportFragmentManager()
.findFragmentById(R.id.map2))的GetMap()。
mMap.setMyLocationEnabled(真正的);
LocationManager服务=(LocationManager)getSystemService(LOCATION_SERVICE);
布尔enabledGPS =服务
.isProviderEnabled(LocationManager.GPS_PROVIDER);
布尔enabledWiFi =服务
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
如果(!enabledGPS){
Toast.makeText(BasicMapActivity_new2.this,GPS信号未找到,
Toast.LENGTH_LONG).show();
意向意图=新的意图(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(意向);
}否则,如果(!enabledWiFi){
Toast.makeText(BasicMapActivity_new2.this,
网络信号没有发现,Toast.LENGTH_LONG).show();
意向意图=新的意图(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(意向);
}
locationManager =(LocationManager)getSystemService(Context.LOCATION_SERVICE);
//定义标准如何选择locatioin提供商 - >使用
// 默认
标准标准=新标准();
供应商= locationManager.getBestProvider(标准,FALSE);
位置位置= locationManager.getLastKnownLocation(供应商);
// getCurrentLocation();
//初始化位置字段
如果(位置!= NULL){
// Toast.makeText(BasicMapActivity_new.this,选商+
//提供商,
// Toast.LENGTH_SHORT).show();
onLocationChanged(位置);
} 其他 {
// 做一点事
}
// setUpMapIfNeeded();
setUpMap();
}
@覆盖
保护无效的onPause(){
super.onPause();
locationManager.removeUpdates(本);
}
@覆盖
保护无效onResume(){
super.onResume();
locationManager.requestLocationUpdates(供应商,400,1,本);
setUpMapIfNeeded();
}
私人无效setUpMap(){
mMap.getUiSettings()setCompassEnabled(真)。
mMap.getUiSettings()setTiltGesturesEnabled(真)。
mMap.getUiSettings()setRotateGesturesEnabled(真)。
mMap.getUiSettings()setScrollGesturesEnabled(真)。
mMap.getUiSettings()setZoomControlsEnabled(真)。
mMap.getUiSettings()setZoomGesturesEnabled(真)。
SMSLocation();
}
公共无效SMSLocation(){
圈圈= mMap.addCircle(新CircleOptions()
.center(新经纬度(纬度,经度))。半径(100)
.strokeColor(Color.RED));
浮动[]距离=新的浮动[1];
最后的ArrayList<整数GT; ArrayList的=新的ArrayList<整数GT;();
的for(int i = 0;我小于10;我++){
//随机纬度和logitude
双[] randomLocation = createRandLocation(纬度,经度);
//添加标记
MarkerOptions标记=新MarkerOptions()。位置(
新经纬度(randomLocation [0],randomLocation [1]))。标题(
你好地图+ I);
Location.distanceBetween(randomLocation [0],randomLocation [1],
circle.getCenter(),纬度,circle.getCenter()。经度,
距离);
// arrayList.add((int)的距离[0]);
的System.out.println(纬度:+ randomLocation [0] +,
+ randomLocation [1]);
Log.e(随机,>中+ randomLocation [0] +,+ randomLocation [1]);
Toast.makeText(
BasicMapActivity_new2.this,
随机位置+ randomLocation [0] +,
+ randomLocation [0],Toast.LENGTH_LONG).show();
如果(我== 0)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_AZURE));
如果(ⅰ== 1)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
如果(ⅰ== 2)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_CYAN));
如果(我== 3)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
如果(我== 4)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
如果(我== 5)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
如果(我== 6)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_RED));
如果(我== 7)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_ROSE));
如果(我== 8)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_VIOLET));
如果(我== 9)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW));
如果(距离[0]&其中; circle.getRadius()){
//添加标记属于这里
mMap.addMarker(标记);
}
//将摄像机移动到最后的位置与缩放级别
/ *
*如果(我== 9){CameraPosition cameraPosition =新
* CameraPosition.Builder()的.target(新经纬度(randomLocation [0],
* randomLocation [1]))放大(15).build();
* mMap.animateCamera(CameraUpdateFactory
* .newCameraPosition(cameraPosition)); }
* /
}
}
@覆盖
公共布尔onMarkerClick(标记为arg0){
// TODO自动生成方法存根
返回false;
}
标记startPerc = NULL;
地点old_one;
@覆盖
公共无效onLocationChanged(位置定位){
// mMap.clear();
双纬度= location.getLatitude();
双LNG = location.getLongitude();
// Toast.makeText(BasicMapActivity_new.this,位置+纬度+,+ LNG,
// Toast.LENGTH_LONG).show();
经纬度坐标=新的经纬度(纬度,经度);
纬度=土地增值税;
经度= LNG;
Toast.makeText(BasicMapActivity_new2.this,
位置+ coordinate.latitude +,+ coordinate.longitude,
Toast.LENGTH_LONG).show();
startPerc = mMap.addMarker(新MarkerOptions()
.position(坐标)
.title伪(当前位置)
.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_BLUE)));
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(坐标,18.0f));
}
私人双[] createRandLocation(双纬度,经度两倍){
返回新的双[] {纬度+((的Math.random() - 0.5)/ 500),
经度+((的Math.random() - 0.5)/ 500),
150 +((的Math.random() - 0.5)* 10)};
}
@覆盖
公共无效onProviderDisabled(字符串提供商){
// TODO自动生成方法存根
}
@覆盖
公共无效onProviderEnabled(字符串提供商){
// TODO自动生成方法存根
}
@覆盖
公共无效onStatusChanged(字符串商,INT地位,捆绑演员){
// TODO自动生成方法存根
}
}
下面是 layout.xml
文件
< XML版本=1.0编码=UTF-8&GT?;
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:layout_width =match_parent
机器人:layout_height =match_parent
机器人:方向=垂直>
<片段
机器人:ID =@ + ID / MAP2
机器人:layout_width =FILL_PARENT
机器人:layout_height =FILL_PARENT
类=com.google.android.gms.maps.SupportMapFragment/>
< / LinearLayout中>
不要忘了添加许可
到的manifest.xml
<使用-权限的Android:名称=android.permission.ACCESS_COARSE_LOCATION/>
<使用-权限的Android:名称=android.permission.ACCESS_FINE_LOCATION/>
输出:
I am using Google Map. I have a array that have multiple Latitude and Longitude. I have a center point of Latitude Longitude. So I want to mark all the Latitude ,Longitude that comes inside the radius of 10 meters from the center point.
Activity Code:
LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
double longitude = location.getLongitude();
double latitude = location.getLatitude();
for (int i = 0; i < 10; i++) {
// random latitude and logitude
double[] randomLocation = createRandLocation(latitude,
longitude);
// Adding a marker
MarkerOptions marker = new MarkerOptions().position(
new LatLng(randomLocation[0], randomLocation[1]))
.title("Hello Maps " + i);
Log.e("Random", "> " + randomLocation[0] + ", "
+ randomLocation[1]);
if (i == 0)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_AZURE));
if (i == 1)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
if (i == 2)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_CYAN));
if (i == 3)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
if (i == 4)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
if (i == 5)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
if (i == 6)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_RED));
if (i == 7)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_ROSE));
if (i == 8)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_VIOLET));
if (i == 9)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW));
googleMap.addMarker(marker);
// Move the camera to last position with a zoom level
if (i == 9) {
CameraPosition cameraPosition = new CameraPosition.Builder()
.target(new LatLng(randomLocation[0],
randomLocation[1])).zoom(15).build();
googleMap.animateCamera(CameraUpdateFactory
.newCameraPosition(cameraPosition));
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
protected void onResume() {
super.onResume();
initilizeMap();
}
private void initilizeMap() {
if (googleMap == null) {
googleMap = ((MapFragment) getFragmentManager().findFragmentById(
R.id.map)).getMap();
// check if map is created successfully or not
if (googleMap == null) {
Toast.makeText(getApplicationContext(),
"Sorry! unable to create maps", Toast.LENGTH_SHORT)
.show();
}
}
}
private double[] createRandLocation(double latitude, double longitude) {
return new double[] { latitude + ((Math.random() - 0.5) / 500),
longitude + ((Math.random() - 0.5) / 500),
150 + ((Math.random() - 0.5) * 10) };
}
}
First of all create Circle
with your Center Point like:
Circle circle = map.addCircle(new CircleOptions()
.center(new LatLng(centerpointLat, cnterpointLong))
.radius(10)
.strokeColor(Color.RED)
);
Now, find Distance
from Center of the Circle
to your Points
and store into one Array
or ArrayList
like :
float[] distances = new float[1];
final ArrayList<Integer> arrayList = new ArrayList<Integer>();
for(int i=0;i<10;i++){
double[] randomLocation = createRandLocation(latitude,
longitude);
Location.distanceBetween(randomLocation[0],randomLocation[1],
circle.getCenter().latitude, circle.getCenter().longitude, distances);
arrayList.add((int) results[0]);
}
Now, check the Distance
from the Center of the Circle
is <10 like:
for(int i=0;i<10;i++){
if(arrayList.get(i) < circle.getRadius() or (directly provide(circle radius))){
//Add Marker belong here
} else {
//Any Message over here
}
}
Try this way
Update: Here is your Activity
public class BasicMapActivity_new2 extends FragmentActivity implements
LocationListener, OnMarkerClickListener {
private GoogleMap mMap;
private LocationManager locationManager;
private String provider;
Double Latitude, longitude;
Circle circle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.basic_demo);
setHeaderBackground();
mMap = ((SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map2)).getMap();
mMap.setMyLocationEnabled(true);
LocationManager service = (LocationManager) getSystemService(LOCATION_SERVICE);
boolean enabledGPS = service
.isProviderEnabled(LocationManager.GPS_PROVIDER);
boolean enabledWiFi = service
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!enabledGPS) {
Toast.makeText(BasicMapActivity_new2.this, "GPS signal not found",
Toast.LENGTH_LONG).show();
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
} else if (!enabledWiFi) {
Toast.makeText(BasicMapActivity_new2.this,
"Network signal not found", Toast.LENGTH_LONG).show();
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
}
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
// Define the criteria how to select the locatioin provider -> use
// default
Criteria criteria = new Criteria();
provider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
// getCurrentLocation();
// Initialize the location fields
if (location != null) {
// Toast.makeText(BasicMapActivity_new.this, "Selected Provider " +
// provider,
// Toast.LENGTH_SHORT).show();
onLocationChanged(location);
} else {
// do something
}
// setUpMapIfNeeded();
setUpMap();
}
@Override
protected void onPause() {
super.onPause();
locationManager.removeUpdates(this);
}
@Override
protected void onResume() {
super.onResume();
locationManager.requestLocationUpdates(provider, 400, 1, this);
setUpMapIfNeeded();
}
private void setUpMap() {
mMap.getUiSettings().setCompassEnabled(true);
mMap.getUiSettings().setTiltGesturesEnabled(true);
mMap.getUiSettings().setRotateGesturesEnabled(true);
mMap.getUiSettings().setScrollGesturesEnabled(true);
mMap.getUiSettings().setZoomControlsEnabled(true);
mMap.getUiSettings().setZoomGesturesEnabled(true);
SMSLocation();
}
public void SMSLocation() {
Circle circle = mMap.addCircle(new CircleOptions()
.center(new LatLng(Latitude, longitude)).radius(100)
.strokeColor(Color.RED));
float[] distances = new float[1];
final ArrayList<Integer> arrayList = new ArrayList<Integer>();
for (int i = 0; i < 10; i++) {
// random latitude and logitude
double[] randomLocation = createRandLocation(Latitude, longitude);
// Adding a marker
MarkerOptions marker = new MarkerOptions().position(
new LatLng(randomLocation[0], randomLocation[1])).title(
"Hello Maps " + i);
Location.distanceBetween(randomLocation[0], randomLocation[1],
circle.getCenter().latitude, circle.getCenter().longitude,
distances);
// arrayList.add((int) distances[0]);
System.out.println("latitude: " + randomLocation[0] + ", "
+ randomLocation[1]);
Log.e("Random", "> " + randomLocation[0] + ", " + randomLocation[1]);
Toast.makeText(
BasicMapActivity_new2.this,
" Random Location " + randomLocation[0] + ","
+ randomLocation[0], Toast.LENGTH_LONG).show();
if (i == 0)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_AZURE));
if (i == 1)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
if (i == 2)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_CYAN));
if (i == 3)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
if (i == 4)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
if (i == 5)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
if (i == 6)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_RED));
if (i == 7)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_ROSE));
if (i == 8)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_VIOLET));
if (i == 9)
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW));
if (distances[0] < circle.getRadius()) {
// Add Marker belong here
mMap.addMarker(marker);
}
// Move the camera to last position with a zoom level
/*
* if (i == 9) { CameraPosition cameraPosition = new
* CameraPosition.Builder() .target(new LatLng(randomLocation[0],
* randomLocation[1])).zoom(15).build();
* mMap.animateCamera(CameraUpdateFactory
* .newCameraPosition(cameraPosition)); }
*/
}
}
@Override
public boolean onMarkerClick(Marker arg0) {
// TODO Auto-generated method stub
return false;
}
Marker startPerc = null;
Location old_one;
@Override
public void onLocationChanged(Location location) {
// mMap.clear();
double lat = location.getLatitude();
double lng = location.getLongitude();
// Toast.makeText(BasicMapActivity_new.this, "Location " + lat+","+lng,
// Toast.LENGTH_LONG).show();
LatLng coordinate = new LatLng(lat, lng);
Latitude = lat;
longitude = lng;
Toast.makeText(BasicMapActivity_new2.this,
"Location " + coordinate.latitude + "," + coordinate.longitude,
Toast.LENGTH_LONG).show();
startPerc = mMap.addMarker(new MarkerOptions()
.position(coordinate)
.title("Current Location")
.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_BLUE)));
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(coordinate, 18.0f));
}
private double[] createRandLocation(double latitude, double longitude) {
return new double[] { latitude + ((Math.random() - 0.5) / 500),
longitude + ((Math.random() - 0.5) / 500),
150 + ((Math.random() - 0.5) * 10) };
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
Here is layout.xml
file
<?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="match_parent"
android:orientation="vertical" >
<fragment
android:id="@+id/map2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
class="com.google.android.gms.maps.SupportMapFragment" />
</LinearLayout>
And do not forget to add permission
into manifest.xml
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
Output:
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