package com.example.androidmapsv2;
import java.util.ArrayList;
import java.util.List;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.CancelableCallback;
import com.google.android.gms.maps.GoogleMap.OnMapClickListener;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.maps.model.Polyline;
import com.google.android.gms.maps.model.PolylineOptions;
import android.os.Bundle;
import android.app.Activity;
import android.app.FragmentManager;
import android.graphics.Color;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity
implements OnMapClickListener{
private GoogleMap myMap;
PolylineOptions polylineOptions;
Polyline polyline;
List<LatLng> listPoint;
int currentPt;
TextView info;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager myFragmentManager = getFragmentManager();
MapFragment myMapFragment =
(MapFragment)myFragmentManager.findFragmentById(R.id.map);
myMap = myMapFragment.getMap();
myMap.setOnMapClickListener(this);
listPoint = new ArrayList<LatLng>();
clearPolyline();
Button btnClear = (Button)findViewById(R.id.clear);
Button btnAnimate = (Button)findViewById(R.id.animate);
Button btnStop = (Button)findViewById(R.id.stopanimate);
info = (TextView)findViewById(R.id.info);
btnClear.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
clearPolyline();
}});
btnAnimate.setOnClickListener(btnAnimateOnClickListener);
btnStop.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
myMap.stopAnimation();
}});
}
OnClickListener btnAnimateOnClickListener =
new OnClickListener(){
@Override
public void onClick(View v) {
if(listPoint==null || listPoint.isEmpty()){
Toast.makeText(getApplicationContext(),
"Not enought point!",
Toast.LENGTH_LONG).show();
}else{
myMap.animateCamera(
CameraUpdateFactory.newLatLng(listPoint.get(0)),
MyCancelableCallback);
currentPt = 0;
info.setText("Start Animation to: " + listPoint.get(0));
}
}
};
private void clearPolyline(){
if(polyline != null){
polyline.remove();
}
polylineOptions = new PolylineOptions();
polylineOptions.color(Color.RED);
listPoint.clear();
myMap.clear();
}
@Override
public void onMapClick(LatLng point) {
myMap.addMarker(new MarkerOptions().position(point).title(point.toString()));
polylineOptions.add(point);
if(polyline != null){
polyline.remove();
}
polyline = myMap.addPolyline(polylineOptions);
listPoint.add(point);
}
CancelableCallback MyCancelableCallback =
new CancelableCallback(){
@Override
public void onCancel() {
info.setText("onCancel()");
}
@Override
public void onFinish() {
if(++currentPt < listPoint.size()){
myMap.animateCamera(
CameraUpdateFactory.newLatLng(listPoint.get(currentPt)),
MyCancelableCallback);
info.setText("Animate to: " + listPoint.get(currentPt));
}else{
info.setText("onFinish()");
}
}
};
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<fragment
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.MapFragment"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="@+id/clear"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Clear" />
<Button
android:id="@+id/animate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Start Animation" />
<Button
android:id="@+id/stopanimate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Stop Animation" />
<TextView
android:id="@+id/info"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</RelativeLayout>
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Next:
- GoogleMap animation with zoom
The series:
A simple example using Google Maps Android API v2, step by step.
2 comments:
You sir deserve a cookie!!!Thank you it's just what I needed for my assignment at uni!!!
Nice tutorial !
I have made marker and polyline but it can show half of polyline in android map.
How to set camera to show whole of my polyline automatically?
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