現在地の緯度と経度をSMSで友達に送信したい。このアプリケーションはダイアログを起動し、2つのボタンがあります。1つはsendlocationで、もう1つはキャンセルボタンです。しかし、エミュレータでプログラムを起動すると、次のエラーが発生しました。
Logcat：
09-08 10:58:04.140: E/AndroidRuntime(212): Uncaught handler: thread main exiting due to uncaught exception
09-08 10:58:04.180: E/AndroidRuntime(212): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.sendlocation/com.example.sendlocation.MainActivity}: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
09-08 10:58:04.180: E/AndroidRuntime(212): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.app.ActivityThread.access$2100(ActivityThread.java:116)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.os.Handler.dispatchMessage(Handler.java:99)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.os.Looper.loop(Looper.java:123)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.app.ActivityThread.main(ActivityThread.java:4203)
09-08 10:58:04.180: E/AndroidRuntime(212): at java.lang.reflect.Method.invokeNative(Native Method)
09-08 10:58:04.180: E/AndroidRuntime(212): at java.lang.reflect.Method.invoke(Method.java:521)
09-08 10:58:04.180: E/AndroidRuntime(212): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
09-08 10:58:04.180: E/AndroidRuntime(212): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
09-08 10:58:04.180: E/AndroidRuntime(212): at dalvik.system.NativeStart.main(Native Method)
09-08 10:58:04.180: E/AndroidRuntime(212): Caused by: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
09-08 10:58:04.180: E/AndroidRuntime(212): at android.view.ViewRoot.setView(ViewRoot.java:460)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.app.Dialog.show(Dialog.java:238)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.app.AlertDialog$Builder.show(AlertDialog.java:802)
09-08 10:58:04.180: E/AndroidRuntime(212): at com.example.sendlocation.MainActivity.updateWithNewLocation(MainActivity.java:177)
09-08 10:58:04.180: E/AndroidRuntime(212): at com.example.sendlocation.MainActivity.onCreate(MainActivity.java:74)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123)
09-08 10:58:04.180: E/AndroidRuntime(212): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364)
09-08 10:58:04.180: E/AndroidRuntime(212): ... 11 more
MyCode：
private void updateWithNewLocation(Location location) {
String latLong;
TextView myLocation;
myLocation = (TextView) findViewById(R.id.myLocation);
String addressString = "no address found";
if(location!=null) {
positionOverlay.setLocation(location);
Double geoLat=location.getLatitude()*1E6;
Double geoLng=location.getLongitude()*1E6;
GeoPoint point=new GeoPoint(geoLat.intValue(),geoLng.intValue());
mapController.animateTo(point);
double lat = location.getLatitude();
double lon = location.getLongitude();
latLong = "Lat:" + lat + "\nLong:" + lon;
double lattitude = location.getLatitude();
double longitude = location.getLongitude();
Geocoder gc = new Geocoder(this,Locale.getDefault());
try {
List<Address> addresses= gc.getFromLocation(lattitude, longitude, 1);
StringBuilder sb = new StringBuilder();
if(addresses.size()>0) {
Address address=addresses.get(0);
for(int i=0;i<address.getMaxAddressLineIndex();i++)
sb.append(address.getAddressLine(i)).append("\n");
sb.append(address.getLocality()).append("\n");
sb.append(address.getPostalCode()).append("\n");
sb.append(address.getCountryName());
}
addressString = sb.toString();
}
catch (Exception e) {
}
} else {
latLong = " NO Location Found ";
}
myLocation.setText("Your Current Position is :\n"+ latLong + "\n"+ addressString );
final String Touch=myLocation.getText().toString();
String title="friendloc";
String message="frndlatlong";
AlertDialog.Builder dialog = new AlertDialog.Builder(getBaseContext());
dialog.setTitle(title);
dialog.setMessage(message);
// dialog to send location via SMS
dialog.setCancelable(false);
dialog.setPositiveButton("Send Location",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// call SMS program
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("sms_body", "My location: " + Touch);
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);
}
}) ;
dialog.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
});
dialog.show();
}