Question

我已经使用AsyncTask实现了通知，我想要做的是通知单击时传递数据。每当我点击通知时，我都应该进入一个片段，该片段将传递数据。我正在使用Bundle将数据传递给我的Fragment类。如何将包数据传递给Fragment

我尝试仅使用Intent并删除Bundle但它没有做任何事情

new notifyThis(this, "2", "Title", "Description", "http://imgur.com/gallery/WBTdB").execute();

通知asyncTask

public class notifyThis extends AsyncTask<String, Void, Bitmap> {

        private Context mContext;
        private String itemId, title, description, imageLink;
        Notification notification;
        NotificationManager notificationManager;
        DetailsFragment detailsFragment;
        FragmentManager fragmentManager;
        FragmentTransaction fragmentTransaction;
        Bundle bundle;
        PendingIntent pendingIntent;
        Intent intent;
        Resources res;

        public notifyThis(Context context, String itemId, String title, String description, String imageLink) {
            super();
            this.mContext = context;
            this.itemId = itemId;
            this.title = title;
            this.description = description;
            this.imageLink = imageLink;
        }

        @Override
        protected Bitmap doInBackground(String... params) {

            InputStream in;
            try {
                URL url = new URL(this.imageLink);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.setDoInput(true);
                connection.connect();
                in = connection.getInputStream();
                return BitmapFactory.decodeStream(in);
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }

        @Override
        protected void onPostExecute(Bitmap imageResult) {
            super.onPostExecute(imageResult);

            fragmentManager = getFragmentManager();
            fragmentTransaction = fragmentManager.beginTransaction();

            final int idItem= Integer.valueOf(itemId);

            intent = new Intent(mContext, DetailsFragment.class);

            bundle = new Bundle();
            bundle.putInt("id", idItem);

            detailsFragment= new DetailsFragment();
            detailsFragment.setTitle(title);
            detailsFragment.setArguments(bundle);
            transaction.replace(R.id.frame_container, detailsFragment);
            transaction.addToBackStack("details");
            transaction.commit();

            intent.putExtras(bundle);
            pendingIntent = PendingIntent.getActivity(mContext, 100, intent, PendingIntent.FLAG_ONE_SHOT);

            res = mContext.getResources();
            int height = (int) res.getDimension(android.R.dimen.notification_large_icon_height);
            int width = (int) res.getDimension(android.R.dimen.notification_large_icon_width);
            imageResult = Bitmap.createScaledBitmap(result, width, height, false);

            notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
            notification = new NotificationCompat.Builder(mContext)
                    .setContentIntent(pendingIntent)
                    .setContentTitle(title)
                    .setSmallIcon(R.drawable.icon)
                    .setLargeIcon(imageResult)
                    .setSubText(description)
                    .build();
            notification.flags |= Notification.FLAG_AUTO_CANCEL;
            notificationManager.notify(1, notification);
        }
}

这就是我传递数据的方式 - DetailsFragment.class

  if (save != null) {
    setTitle(save.getString("title"));
  }

  if (itemId != this.getArguments().getInt("id")) {
    itemId = this.getArguments().getInt("id");
    /do something here
  }

Answer 1

我认为您应该在待处理意图中使用一个活动，并且此活动应该在您的活动中包含您的frame_container，您可以检查数据并从那里设置片段，因为这样片段与您的通知操作无关。

Answer 2

将数据添加到分发包并创建待处理的意图。将此添加到您的通知管理器

 Intent intent = new Intent(getActivity(), MainActivity.class);
    Bundle bundle=new Bundle();
    intent.putExtra(BUNDLE_KEY,bundle);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
            PendingIntent.FLAG_ONE_SHOT);

notificationBuilder = new NotificationCompat.Builder(this)
            .setSmallIcon(R.mipmap.app_icon)
            .setContentTitle(title)
            .setContentText(result)
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);

Answer 3

首先，您需要使用“活动”从通知中启动。活动将容纳您要显示的片段。在片段中有一个静态初始值设定项，它将获取您想要传递给片段的必要参数。

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     * @return
     */
    public static ProductFragment newInstance(String category) {
        ProductFragment fragment = new ProductFragment();
        Bundle args = new Bundle();
        args.putString(ARG_CATEGORY, category);
        fragment.setArguments(args);
        return fragment;
    }

在您的活动中添加从此方法返回的片段实例（使用片段管理器添加标准片段）。您可以像{ - 1}}这样从片段中获取参数 -

onCreate

希望这很清楚

onClick通知使用bundle将数据传递给片段

3 个答案: