我想在按下按钮时完成我的应用程序但它终止并且logcat会向我抛出错误。你能看一下吗？它说接收器没有注册，但我有。
按钮的代码
stopService(new Intent(MainActivity.this, GPSandSMSService.class));
finish();
GPS和SMS服务代码
public class GPSandSMSService extends Service {
private IntentFilter mIntentFilter;
public static final String USER_KEYWORD = "USER_KEYWORD";
public static final String USER_NUMBER = "USER_NUMBER";
public static final String HOME_LONGITUDE = "HOME_LONGITUDE";
public static final String HOME_LATITUDE = "HOME_LATITUDE";
private final String PROX_ALERT = "com.emmanuilvaresis.oldiefinder.ProximityAlert";
SharedPreferences prefs;
Context context;
double lng, lat, hlat, hlng;
float radius = 500f; // meters
long expiration = -1; // do not expire
protected LocationManager locationManager;
Location location;
PackageManager packageManager;
static int flag = 0;
@Override
public void onCreate(){
context = getApplicationContext();
prefs = PreferenceManager.getDefaultSharedPreferences(context);
String svcName = Context.LOCATION_SERVICE;
locationManager = (LocationManager) getSystemService(svcName);
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setPowerRequirement(Criteria.POWER_LOW);
criteria.setAltitudeRequired(false);
criteria.setBearingRequired(false);
criteria.setSpeedRequired(false);
criteria.setCostAllowed(true);
String provider = locationManager.getBestProvider(criteria, true);
packageManager = getPackageManager();
if (packageManager.checkPermission(android.Manifest.permission.ACCESS_FINE_LOCATION, getPackageName())
== PackageManager.PERMISSION_GRANTED){
locationManager.requestLocationUpdates(provider, 10 * 1000, 100, locationListener);
location = locationManager.getLastKnownLocation(provider);
getCoordinates(location);
}
mIntentFilter = new IntentFilter();
mIntentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");
registerReceiver(SMSChecker, mIntentFilter);
}
private void getCoordinates(Location l){
if (l != null) {
lat = l.getLatitude();
lng = l.getLongitude();
}
double templat, templng;
templat = prefs.getFloat(HOME_LATITUDE, 0);
templng = prefs.getFloat(HOME_LONGITUDE, 0);
if((hlat != templat) && (hlng != templng)){
hlat = templat;
hlng = templng;
if((hlat!=0) && (hlng!=0)){
addProximityAlert(hlat, hlng);
}
}
}
private final LocationListener locationListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
getCoordinates(location);
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
};
@Override
public void onDestroy(){
super.onDestroy();
unregisterReceiver(SMSChecker);
unregisterReceiver(MapAlertReceiver);
}
@Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
throw new UnsupportedOperationException("Not yet implemented");
}
private void addProximityAlert(double latitude, double longitude) {
if (packageManager.checkPermission(android.Manifest.permission.ACCESS_FINE_LOCATION, getPackageName())
== PackageManager.PERMISSION_GRANTED){
Intent intent = new Intent(PROX_ALERT);
PendingIntent proximityIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
locationManager.addProximityAlert(latitude, longitude, radius, expiration, proximityIntent);
IntentFilter filter = new IntentFilter(PROX_ALERT);
registerReceiver(MapAlertReceiver, filter);
}
}
public final BroadcastReceiver SMSChecker = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if(action.equals("android.provider.Telephony.SMS_RECEIVED")){
String msgBody = "";
SmsMessage[] messages;
Bundle bundle = intent.getExtras();
if (bundle != null){
Object[] pdus = (Object[]) bundle.get("pdus");
messages = new SmsMessage[pdus.length];
for (int i = 0; i < pdus.length; i++){
messages[i] = SmsMessage.createFromPdu((byte []) pdus[i]);
msgBody = messages[i].getDisplayMessageBody().toString();
}
String msg1;
prefs = context.getSharedPreferences("com.emmanuilvaresis.oldiefinder_preferences", Context.MODE_PRIVATE);
msg1 = prefs.getString(USER_KEYWORD, "0");
if (msgBody.equals(msg1)){
String msgText = context.getString(R.string.msgforloc) + " http://google.com/maps/place/" + lat + "," + lng;
String number = prefs.getString(USER_NUMBER, "0");
try {
if ((lat!=0) && (lng!=0) && !(number.equals("0"))){
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(number, null, msgText, null, null);
Toast.makeText(context, context.getString(R.string.messagesent), Toast.LENGTH_SHORT).show();
}
else {
Toast.makeText(context, context.getString(R.string.messagenotsent), Toast.LENGTH_SHORT).show();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
}
};
public final BroadcastReceiver MapAlertReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
final String key = LocationManager.KEY_PROXIMITY_ENTERING;
final Boolean entering = intent.getBooleanExtra(key, false);
if (!entering) {
if (flag == 0) {
String msgBody = context.getString(R.string.msgformap);
String number = prefs.getString(USER_NUMBER, "0");
try {
if ((lat != 0) && (lng != 0) && !(number.equals("0"))) {
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(number, null, msgBody, null, null);
Toast.makeText(context, context.getString(R.string.messagesent), Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(context, context.getString(R.string.messagenotsent), Toast.LENGTH_SHORT).show();
}
} catch (Exception e) {
e.printStackTrace();
}
flag = 1;
}
} else {
flag = 0;
}
}
};
}
LogCat错误
12-08 22:34:56.714 24399-24399/com.emmanuilvaresis.oldiefinder E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.emmanuilvaresis.oldiefinder, PID: 24399
java.lang.RuntimeException: Unable to stop service com.emmanuilvaresis.oldiefinder.GPSandSMSService@1b58cbb2: java.lang.IllegalArgumentException: Receiver not registered: com.emmanuilvaresis.oldiefinder.GPSandSMSService$3@2ce31c80
at android.app.ActivityThread.handleStopService(ActivityThread.java:3363)
at android.app.ActivityThread.access$2300(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1552)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5951)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: java.lang.IllegalArgumentException: Receiver not registered: com.emmanuilvaresis.oldiefinder.GPSandSMSService$3@2ce31c80
at android.app.LoadedApk.forgetReceiverDispatcher(LoadedApk.java:822)
at android.app.ContextImpl.unregisterReceiver(ContextImpl.java:2038)
at android.content.ContextWrapper.unregisterReceiver(ContextWrapper.java:528)
at com.emmanuilvaresis.oldiefinder.GPSandSMSService.onDestroy(GPSandSMSService.java:107)
at android.app.ActivityThread.handleStopService(ActivityThread.java:3346)
at android.app.ActivityThread.access$2300(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1552)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5951)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
答案 0 :(得分：1)
来自您的LogCat：Receiver not registered
您无法取消注册从未注册的内容......
您的onCreate仅用于注册1个接收者（SMSChecker），
但您的onDestroy执行此操作：
@Override
public void onDestroy(){
super.onDestroy();
unregisterReceiver(SMSChecker);
unregisterReceiver(MapAlertReceiver);
}
因此，MapAlertReceiver仅在某些时间注册，当它未注册且您尝试关闭崩溃时的应用程序。
答案 1 :(得分：0)
好像你正在打电话：
unregisterReceiver(MapAlertReceiver);
来自onDestroy，但可能尚未注册。