我试图建立最基本的接近警报，但好像没有什么改变。 我是相当新到Android编程，所以请让我知道我做错了还是我失去了什么。 我从这里出去的一些源代码和启发这一个 。 这里是我的代码：
package com.example.proximityalert;
import android.location.LocationManager;
import android.os.Bundle;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
public class MainActivity extends Activity {
private static final String PROX_ALERT_INTENT = "com.example.proximityalert";
private IntentReceiver locationReminderReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent intent = new Intent(PROX_ALERT_INTENT);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
locationManager.addProximityAlert(55.586301,13.045417, 200, -1, pendingIntent);
this.locationReminderReceiver = new IntentReceiver();
final IntentFilter filter = new IntentFilter(PROX_ALERT_INTENT);
this.registerReceiver(this.locationReminderReceiver, filter);
}
}
和接收器
package com.example.proximityalert;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.location.LocationManager;
import android.util.Log;
import android.widget.Toast;
public class IntentReceiver extends BroadcastReceiver{
// @SuppressWarnings("deprecation")
@Override
public void onReceive(Context context, Intent intent) {
String key = LocationManager.KEY_PROXIMITY_ENTERING;
Boolean entering = intent.getBooleanExtra(key, false);
if (entering) {
Toast.makeText(context, "LocationReminderReceiver entering", Toast.LENGTH_SHORT).show();
Log.i("LocationReminderReceiver", "entering");
} else {
Toast.makeText(context, "LocationReminderReceiver exiting", Toast.LENGTH_SHORT).show();
Log.i("LocationReminderReceiver", "exiting");
}
}
}
这是我用它来获得接近警报服务，欢迎您使用它，它不需要reciever在清单，只是服务
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.database.Cursor;
import android.graphics.Color;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
public class ProximityService extends Service{
String proximitysd = "com.apps.ProximityService";
int n = 0;
private BroadcastReceiver mybroadcast;
private LocationManager locationManager;
MyLocationListener locationListenerp;
public ProximityService() {
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
mybroadcast = new ProximityIntentReceiver();
locationManager = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
double lat;
double lng;
float radius = 50f;
long expiration = -1;
MyDBAdapter db = new MyDBAdapter(this);
Cursor cursor;
db.read();
cursor = db.getAllEntries();
boolean go = cursor.moveToFirst();
while(cursor.isAfterLast() != true){
lat = cursor.getInt(MyDBAdapter.LATITUDE_COLUMN)/1E6;
lng = cursor.getInt(MyDBAdapter.LONGITUDE_COLUMN)/1E6;
String what = cursor.getString(MyDBAdapter.ICON_COLUMN);
String how = cursor.getString(MyDBAdapter.FISH_COLUMN);
String proximitys = "com.apps.ProximityService" + n;
IntentFilter filter = new IntentFilter(proximitys);
registerReceiver(mybroadcast, filter );
Intent intent = new Intent(proximitys);
intent.putExtra("alert", what);
intent.putExtra("type", how);
PendingIntent proximityIntent = PendingIntent.getBroadcast(this, n, intent, PendingIntent.FLAG_CANCEL_CURRENT);
locationManager.addProximityAlert(lat, lng, radius, expiration, proximityIntent);
//sendBroadcast(new Intent(intent));
n++;
cursor.moveToNext();
}
db.close();
cursor.close();
}
@Override
public void onDestroy() {
Toast.makeText(this, "Proximity Service Stopped", Toast.LENGTH_LONG).show();
try{
unregisterReceiver(mybroadcast);
}catch(IllegalArgumentException e){
Log.d("reciever",e.toString());
}
}
@Override
public void onStart(Intent intent, int startid) {
Toast.makeText(this, "Proximity Service Started", Toast.LENGTH_LONG).show();
//IntentFilter filter = new IntentFilter(proximitys);
//registerReceiver(mybroadcast,filter);
}
public class ProximityIntentReceiver extends BroadcastReceiver{
private static final int NOTIFICATION_ID = 1000;
@Override
public void onReceive(Context arg0, Intent arg1) {
String key = LocationManager.KEY_PROXIMITY_ENTERING;
Boolean entering = arg1.getBooleanExtra(key, false);
String here = arg1.getExtras().getString("alert");
String happy = arg1.getExtras().getString("type");
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent pendingIntent = PendingIntent.getActivity(arg0, 0, arg1, 0);
Notification notification = createNotification();
notification.setLatestEventInfo(arg0,
"Entering Proximity!", "You are approaching a " + here + " marker.", pendingIntent);
notificationManager.notify(NOTIFICATION_ID, notification);
}
private Notification createNotification() {
Notification notification = new Notification();
notification.icon = R.drawable.icon;
notification.when = System.currentTimeMillis();
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.flags |= Notification.FLAG_SHOW_LIGHTS;
notification.defaults |= Notification.DEFAULT_VIBRATE;
notification.defaults |= Notification.DEFAULT_LIGHTS;
notification.ledARGB = Color.WHITE;
notification.ledOnMS = 1500;
notification.ledOffMS = 1500;
return notification;
}
//make actions
}
public class MyLocationListener implements LocationListener {
public void onLocationChanged(Location location) {
Toast.makeText(getApplicationContext(), "I was here", Toast.LENGTH_LONG).show();
}
public void onProviderDisabled(String s) {
}
public void onProviderEnabled(String s) {
}
@Override
public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
// TODO Auto-generated method stub
}
}
}
你将不得不更换数据库查询和一些代码，以适应您的应用程序，这是一个多接近警报这就是为什么有n的增量。
