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import 'package:http/http.dart' as http;

Future<String> getIdToken({bool? force}) async {
  // fetch update token
  return "abc*******";
}

Future<void> main() async {
  final client = http.Client();
  final token = await getIdToken();

tank777

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

class CountController extends StateNotifier<AsyncValue<int>> {
  CountController() : super(const AsyncData<int>(0));

  Future<void> up() async {
    state = const AsyncLoading<int>();

tank777

package com.bgt.stopscrollrecycleview;

import android.content.Context;
import android.support.v7.widget.LinearLayoutManager;
import android.util.AttributeSet;

/**
 * Created by Bhavesh on 15-06-2017.
 */

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import 'dart:async';

import 'package:flutter/material.dart';

class InfiniteScroll extends StatefulWidget {
  @override
  _InfiniteScrollState createState() => new _InfiniteScrollState();
}

class _InfiniteScrollState extends State<InfiniteScroll> {

tank777

How to Add a Watermark to Video

FFMPEG filters provide a powerful way to programmatically enhance or alter videos, and it’s fairly simple to add a watermark to a video using the overlay filter. The easiest way to install ffmpeg is to download a pre-built binary for your specific platform. Then you don’t have to worry about including and installing all the right dependencies and codecs you will be using.

Once you have ffmpeg installed, adding a watermark is as easy as passing your existing source through an overlay filter like so:

ffmpeg -i test.mp4 -i watermark.png -filter_complex "overlay=10:10" test1.mp4

Basically, we’re passing in the original video, and an overlay image as inputs, then passing it through the filter, and saving the output as test1.mp4.

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private class FetchContacts extends AsyncTask<Void, Void, ArrayList<Contact>> {

  private final String DISPLAY_NAME = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB ?
          ContactsContract.Contacts.DISPLAY_NAME_PRIMARY : ContactsContract.Contacts.DISPLAY_NAME;

  private final String FILTER = DISPLAY_NAME + " NOT LIKE '%@%'";

  private final String ORDER = String.format("%1$s COLLATE NOCASE", DISPLAY_NAME);

  @SuppressLint("InlinedApi")

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private Bitmap addWaterMark(Bitmap src, Bitmap waterMark) {
        if (src == null || waterMark == null) {

            return null;
        }


        try {
            int w = src.getWidth();
            int h = src.getHeight();

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You can use this class to realize a simple sectioned grid RecyclerView.Adapter without changing your code.

The RecyclerView has to use a GridLayoutManager.

This is a porting of the class SimpleSectionedListAdapter provided by Google

If you are looking for a sectioned list RecyclerView.Adapter you can take a look here

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[ 
  {name: 'Afghanistan', code: 'AF'}, 
  {name: 'Åland Islands', code: 'AX'}, 
  {name: 'Albania', code: 'AL'}, 
  {name: 'Algeria', code: 'DZ'}, 
  {name: 'American Samoa', code: 'AS'}, 
  {name: 'AndorrA', code: 'AD'}, 
  {name: 'Angola', code: 'AO'}, 
  {name: 'Anguilla', code: 'AI'}, 
  {name: 'Antarctica', code: 'AQ'}, 

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Make your multiple type view adapter with annotations!

Gist for Making a Multiple View Types Adapter With Annotations

Pretty easy to use.

1. Create your delegate adapters, implementing DelegateAdapter, and with the annotation DelegateAdapterType. e.g:

@DelegateAdapterType(itemType = 0)