7
可能重复：
how to run application in background in android?如何在后台运行Android应用程序
我使用外景经理做项目，如果我的位置的经度和纬度等于这是在数据库中移动相同配置文件应该进入静音mode.so我需要继续更新我的位置使用位置manager.i做到了。但如果我关闭我的应用程序它不工作。 但我的应用程序应该工作，即使我关闭我的app.i尝试与异步任务其工作时，我关闭应用程序，但后我手动切换到响亮模式它不会改变silent.i应该也会得到通知时，我的应用程序运行n提前
background..please help.tks这里是我的代码
public class ShowLocationActivity extends Activity implements LocationListener {
private TextView latituteField;
private TextView longitudeField;
private LocationManager locationManager;
private String provider;
double lat,lng;
Location location;
AudioManager mobilemode ;
private Boolean flag = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.location);
latituteField = (TextView) findViewById(R.id.TextView02);
longitudeField = (TextView) findViewById(R.id.TextView04);
mobilemode = (AudioManager) this.getSystemService(Context.AUDIO_SERVICE);
// Get the location manager
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 = locationManager.getLastKnownLocation(provider);
// Initialize the location fields
flag = displayGpsStatus();
if (flag) {
if (location != null) {
System.out.println("Provider " + provider + " has been selected.");
onLocationChanged(location);
if((lat==12.905478)&&(lng==80.093358))
{
mobilemode.setRingerMode(AudioManager.RINGER_MODE_VIBRATE);
Toast.makeText(getBaseContext(),"VIBRATE profile activated ",Toast.LENGTH_SHORT).show();
}
else if ((lat==12.90080625)&&(lng==80.09210655))
{
mobilemode.setRingerMode(AudioManager.RINGER_MODE_SILENT);
Toast.makeText(getBaseContext(),"SILENT profile activated !",Toast.LENGTH_SHORT).show();
//notification.setLatestEventInfo(ShowLocationActivity.this, "changed to silent mode", "because u r in office", pendingIntent);
// notificationManager.notify(i, notification);
}
else
{
mobilemode.setRingerMode(AudioManager.RINGER_MODE_NORMAL);
Toast.makeText(getBaseContext(),"LOUD profile activated !",Toast.LENGTH_SHORT).show();
}
}
else {
latituteField.setText("Location not available");
longitudeField.setText("Location not available");
}
}
else {
alertbox("Gps Status!!", "Your GPS is: OFF");
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.location, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.menu_settings:
Intent intent = new Intent(ShowLocationActivity.this,SetPreference.class);
startActivityForResult(intent, 0);
checkPref();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void checkPref(){
SharedPreferences myPref
= PreferenceManager.getDefaultSharedPreferences(ShowLocationActivity.this);
String _pref =
"Option 1: " + myPref.getBoolean("pref_opt1", true);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
checkPref();
}
@Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
lat = (double) (location.getLatitude());
lng = (double) (location.getLongitude());
latituteField.setText(String.valueOf(lat));
longitudeField.setText(String.valueOf(lng));
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
Toast.makeText(this, "Disabled provider " + provider,
Toast.LENGTH_SHORT).show();
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
Toast.makeText(this, "Enabled new provider " + provider,
Toast.LENGTH_SHORT).show();
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
@Override
protected void onResume() {
super.onResume();
locationManager.requestLocationUpdates(provider, 400, 1, this);
}
@Override
protected void onPause() {
super.onPause();
locationManager.removeUpdates(this);
}
public void rrr(View v)
{
DownloadTask n= new DownloadTask();
n.doInBackground();
}
public void onDestroy()
{
super.onDestroy();
Log.v("hhh","on destroy");
DownloadTask n= new DownloadTask();
n.doInBackground();
}
public Boolean displayGpsStatus() {
ContentResolver contentResolver = getBaseContext().getContentResolver();
boolean gpsStatus = Settings.Secure.isLocationProviderEnabled(
contentResolver, LocationManager.GPS_PROVIDER);
if (gpsStatus) {
return true;
} else {
return false;
}
}
/*----------Method to create an AlertBox ------------- */
protected void alertbox(String title, String mymessage) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Your Device's GPS is Disable")
.setCancelable(false)
.setTitle("** Gps Status **")
.setPositiveButton("Gps On",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// finish the current activity
// AlertBoxAdvance.this.finish();
Intent myIntent = new Intent(
Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(myIntent);
dialog.cancel();
}
})
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// cancel the dialog box
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
public class DownloadTask extends AsyncTask<Integer, Integer, Void> {
@Override
protected Void doInBackground(Integer... params) {
Log.v("hhh","back");
onCreate(null);
// onLocationChanged(location);
/*
lat = (double) (location.getLatitude());
lng = (double) (location.getLongitude());
latituteField.setText(String.valueOf(lat));
longitudeField.setText(String.valueOf(lng));
if (location != null) {
System.out.println("Provider " + provider + " has been selected.");
onLocationChanged(location);
if((lat==12.905478)&&(lng==80.093358))
{
mobilemode.setRingerMode(AudioManager.RINGER_MODE_VIBRATE);
Toast.makeText(getBaseContext(),"VIBRATE profile activated ",Toast.LENGTH_SHORT).show();
}
else if ((lat==12.90080625)&&(lng==80.09210655))
{
mobilemode.setRingerMode(AudioManager.RINGER_MODE_SILENT);
Toast.makeText(getBaseContext(),"SILENT profile activated !",Toast.LENGTH_SHORT).show();
//notification.setLatestEventInfo(ShowLocationActivity.this, "changed to silent mode", "because u r in office", pendingIntent);
// notificationManager.notify(i, notification);
}
else
{
mobilemode.setRingerMode(AudioManager.RINGER_MODE_NORMAL);
Toast.makeText(getBaseContext(),"LOUD profile activated !",Toast.LENGTH_SHORT).show();
}
}
else {
latituteField.setText("Location not available");
longitudeField.setText("Location not available");
}
// TODO Auto-generated method stub
*/
return null;
}
}
}
用户Android组件调用[Service]（http://developer.android.com/reference/android/app/Service.html） – Lucifer
此问题可能会回答你在找什么http://stackoverflow.com/questions/5240246/broadcastreceiver-for-location –