自学HarmonyOS应用开发（53）- 获取当前位置

"reqPermissions": [
  ...
  {
    "name": "ohos.permission.LOCATION",
    "reason": "$string:reason_location",
    "usedScene": {
      "ability": [
        "com.myapplication.LocationAbility"
      ],
      "when": "always"
    }

},
...

private void register(Context ability) {
    context = ability;
    requestPermission(PERM_LOCATION);
}

private void requestPermission(String permission) {
    if (context.verifySelfPermission(permission) != IBundleManager.PERMISSION_GRANTED) {
        context.requestPermissionsFromUser(new String[] {permission}, 0);
    }
}

private void registerLocationEvent() {
    if (hasPermissionGranted(PERM_LOCATION)) {
        locator = new Locator(context);
        requestParam = new RequestParam(RequestParam.SCENE_NAVIGATION);
        locator.requestOnce(requestParam, locatorCallback);
    }
}

private void unregisterLocationEvent() {
    if (locator != null) {
        locator.stopLocating(locatorCallback);
    }
}

private boolean hasPermissionGranted(String permission) {
    return context.verifySelfPermission(permission) == IBundleManager.PERMISSION_GRANTED;
}

private class MyLocatorCallback implements LocatorCallback {
    @Override
    public void onLocationReport(Location location) {
        HiLog.info(LABEL, "onLocationReport");
        TaskDispatcher uiTaskDispatcher = owner_slice.getUITaskDispatcher();
        Revocable revocable = uiTaskDispatcher.asyncDispatch(new Runnable() {
            @Override
            public void run() {
                tileMap.setLocation(location.getLongitude(), location.getLatitude());
            }
        });
    }

    @Override
    public void onStatusChanged(int type) {
    }

    @Override
    public void onErrorReport(int type) {
    }
}