title: Java android android.view.WindowManager$BadTokenException: Unable to add window
body: <p>My application is crash and in logs I see this, I try to find how I can fix it , but only I find that is cause a contex and a peole use YourActivityName.this and it works fine , but I have like this and my applications is crash</p>
  
  <p>This is logs :</p>
  
  <pre><code>Fatal Exception: android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@482fc81 is not valid; is your activity running?
         at android.view.ViewRootImpl.setView(ViewRootImpl.java:584)
         at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:310)
         at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:86)
         at android.app.Dialog.show(Dialog.java:322)
         at android.support.v7.app.AlertDialog$Builder.show(AlertDialog.java:953)
         at pl.eltegps.smokkomunikator.ui.activity.MainActivity.runServices(MainActivity.java:505)
         at pl.eltegps.smokkomunikator.ui.activity.MainActivity.onStart(MainActivity.java:316)
         at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1238)
         at android.app.Activity.performStart(Activity.java:6288)
         at android.app.Activity.performRestart(Activity.java:6334)
         at android.app.ActivityThread.handleSleeping(ActivityThread.java:3688)
         at android.app.ActivityThread.access$2900(ActivityThread.java:157)
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1531)
         at android.os.Handler.dispatchMessage(Handler.java:102)
         at android.os.Looper.loop(Looper.java:148)
         at android.app.ActivityThread.main(ActivityThread.java:5527)
         at java.lang.reflect.Method.invoke(Method.java)
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
  </code></pre>
  
  <p>This is code :</p>
  
  <pre><code> protected void runServices() {
          if (LocationUtil.isLocationEnabled(getBaseContext())) {
              if (checkPermission()) {
                  runLocationService();
              }
          } else {
              AlertDialog.Builder dialog = new AlertDialog.Builder(this);
              dialog.setMessage(getResources().getString(R.string.location_settings_disabled));
              dialog.setPositiveButton(getString(R.string.go_to_location_settings), new DialogInterface.OnClickListener() {
                  @Override
                  public void onClick(DialogInterface paramDialogInterface, int paramInt) {
                      App.getBus().post(new PageNavigateEvent(Const.APP_SETTINGS_LOCATION));
                  }
              });
              dialog.setNegativeButton(getResources().getString(R.string.cancel), new DialogInterface.OnClickListener() {
                  @Override
                  public void onClick(DialogInterface paramDialogInterface, int paramInt) {
                      finish();
                  }
              });
              dialog.show();
          }
          runTrackerService();
          runConfigService();
      }
  </code></pre>
  
  <p>and this line cause errors : </p>
  
  <pre><code>dialog.show();
  </code></pre>