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我正在做一個android應用程序>我如何從活動獲取數據到服務，然後這個服務會發出通知併發送數據到另一個活動，用戶可以在活動中看到結果？我想從活動A到服務S的數據，然後這個服務將數據發送到活動D
我要發送的用戶服務ID，並把服務的數據內通知
public class Publication extends Activity {
final String EXTRA_id = null;
final String EXTRA_id_user = null;
final String EXTRA_pseudo = "user_pseudo";
GPSTracker gps;
@SuppressWarnings("unused")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_publication);
final Intent publ = getIntent();
TextView pseudoDisplay = (TextView) findViewById(R.id.pseudview);
Intent intent1 = new Intent(this, GPSTracker.class);
startService(intent1);
gps = new GPSTracker(Publication.this);
// check if GPS enabled
if (gps.canGetLocation()) {
final double latitude = gps.getLatitude();
final double longitude = gps.getLongitude();
final String lati = Double.toString(latitude);
final String longi =Double.toString(longitude);
Intent intent = new Intent(this, Near_Best.class);
Bundle b = new Bundle();
b.putString("Array", publ.getStringExtra(EXTRA_id));
b.putString("lati", lati);
b.putString("longi", longi);
intent.putExtras(b);
startService(intent);
// \n is for new line
Toast.makeText(
Publication.this,
"Your Location is - \nLat: " + latitude + "\nLong: "
+ longitude, Toast.LENGTH_LONG).show();
} else {
// can't get location
// GPS or Network is not enabled
// Ask user to enable GPS/network in settings
gps.showSettingsAlert();
}
if (publ != null) {
pseudoDisplay.setText(publ.getStringExtra(EXTRA_pseudo));
final String id = publ.getStringExtra(EXTRA_id);
}
final Button search = (Button) findViewById(R.id.search);
final Button mespub = (Button) findViewById(R.id.mypu);
search.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent search_i = new Intent(Publication.this, Recherche.class);
final String id_user = publ.getStringExtra(EXTRA_id);
search_i.putExtra(EXTRA_id, id_user);
startActivity(search_i);
}
});
mespub.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent Myp = new Intent(Publication.this, Recherchepub.class);
final String id_use = publ.getStringExtra(EXTRA_id);
Myp.putExtra(EXTRA_id_user, id_use);
startActivity(Myp);
}
});
findViewById(R.id.pubmulti).setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
Intent test = new Intent(Publication.this,
PhotoPublication.class);
final String id_use = publ.getStringExtra(EXTRA_id);
test.putExtra(EXTRA_id, id_use);
final String pseu = publ.getStringExtra(EXTRA_pseudo);
test.putExtra(EXTRA_pseudo, pseu);
startActivity(test);
}
AND THE SERVICE S ,I want to use the id in this service
public class Near_Best extends Service implements Runnable, LocationListener {
private LocationManager lManager;
private Handler handler;
@Override
public void onCreate() {
handler = new Handler();
lManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
this).setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Near best")
.setContentText("notification service !");
// Creates an explicit intent for an Activity in your app
Intent resultIntent = new Intent(this, Affichage.class);
// The stack builder object will contain an artificial back stack for
// the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
// Adds the back stack for the Intent (but not the Intent itself)
stackBuilder.addParentStack(Affichage.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,
PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// mId allows you to update the notification later on.
mNotificationManager.notify(0, mBuilder.build());
Thread thread = new Thread(this);
thread.start();
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public void run() {
try {
while (true) {
// On récupère le service de localisation
handler.post(new Runnable() {
@Override
public void run() {
lManager.requestLocationUpdates("network", 60000, 0,
Near_Best.this);
}
});
Thread.sleep(10 * 60 * 1000);
}
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void onLocationChanged(Location location) {
final String latitude = String.valueOf(location.getLatitude());
final String longitude = String.valueOf(location.getLongitude());
new Thread(new Runnable() {
@Override
public void run() {
String result;
try {
result = UserFunctions.service("", latitude,
longitude);
} catch (Throwable e) {
e.printStackTrace();
}
handler.post(new Runnable() {
@Override
public void run() {
Toast.makeText(Near_Best.this, "non",
Toast.LENGTH_LONG).show();
}
});
}
}).start();
;
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
}
提出具體問題。 – Ryan
我想從活動發送數據到服務，請在服務中使用它？ –
從你的問題來看，你並不十分清楚你需要什麼。在服務中爲您當前使用的ID添加一個成員變量就足夠了嗎？ –