Android-PullToRefresh | DEPRECATEDSupports both Pulling Down from the top, and Pulling Up from the bottom | iOS library

by chrisbanes Java Version: Current License: Apache-2.0

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kandi X-RAY | Android-PullToRefresh Summary

Android-PullToRefresh is a Java library typically used in Mobile, iOS, React Native applications. Android-PullToRefresh has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can download it from GitHub, Maven.

DEPRECATED

Support

Quality

Security

License

Reuse

kandi-support Support

Android-PullToRefresh has a medium active ecosystem.
It has 8820 star(s) with 4862 fork(s). There are 983 watchers for this library.
It had no major release in the last 12 months.
Android-PullToRefresh has no issues reported. There are 17 open pull requests and 0 closed requests.
It has a neutral sentiment in the developer community.
The latest version of Android-PullToRefresh is current.

This Library - Support

Best in #iOS

Average in #iOS

This Library - Support

Best in #iOS

Average in #iOS

quality kandi Quality

Android-PullToRefresh has 0 bugs and 0 code smells.

This Library - Quality

Best in #iOS

Average in #iOS

This Library - Quality

Best in #iOS

Average in #iOS

security Security

Android-PullToRefresh has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
Android-PullToRefresh code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

This Library - Security

Best in #iOS

Average in #iOS

This Library - Security

Best in #iOS

Average in #iOS

license License

Android-PullToRefresh is licensed under the Apache-2.0 License. This license is Permissive.
Permissive licenses have the least restrictions, and you can use them in most projects.

This Library - License

Best in #iOS

Average in #iOS

This Library - License

Best in #iOS

Average in #iOS

build Reuse

Android-PullToRefresh releases are not available. You will need to build from source code and install.
Deployable package is available in Maven.
Build file is available. You can build the component from source.
Installation instructions are not available. Examples and code snippets are available.
It has 4507 lines of code, 400 functions and 93 files.
It has medium code complexity. Code complexity directly impacts maintainability of the code.

This Library - Reuse

Best in #iOS

Average in #iOS

This Library - Reuse

Best in #iOS

Average in #iOS

Top functions reviewed by kandi - BETA

kandi has reviewed Android-PullToRefresh and discovered the below as its top functions. This is intended to give you an instant insight into Android-PullToRefresh implemented functionality, and help decide if they suit your requirements.

Intercept the touch event .
Called when a list item is clicked .
Returns true if the last item is visible .
Called when an image is loaded .
Reset the header .
Initializes the web view .
Override to create the list view .
Create refreshable view .
Sets the context menu to be created
Override this method to set the pull refresh grid status .

Android-PullToRefresh Key Features

Supports both Pulling Down from the top, and Pulling Up from the bottom (or even both).

Animated Scrolling for all devices.

Over Scroll supports for devices on Android v2.3+.

Currently works with: ListView ExpandableListView GridView WebView ScrollView HorizontalScrollView ViewPager

Integrated End of List Listener for use of detecting when the user has scrolled to the bottom.

Maven Support.

Indicators to show the user when a Pull-to-Refresh is available.

Support for ListFragment!

Lots of Customisation options!

Android-PullToRefresh Examples and Code Snippets

See all related Code Snippets

License

Copy

Download

Copyright 2011, 2012 Chris Banes

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

See all related Code Snippets

Community Discussions

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Trending Discussions on Mobile

QUESTION

Error: Property 'body' cannot be accessed on 'Response?' because it is potentially null

Asked 2022-Mar-29 at 00:29

so I'am trying to learn dart and flutter and everything went well so far. But now I'am stuck at an error which I cannot handle. I coded a function which is supposed to asynchronously return the actual BTC price from https://blockchain.info/ticker.

Only thing it returns is errors:

Error: Property 'body' cannot be accessed on 'Response?' because it is potentially null.
 - 'Response' is from 'package:http/src/response.dart' ('/D:/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.13.4/lib/src/response.dart').
Try accessing using ?. instead.
          return Text("${BTCPrice.fromJson(jsonDecode(snapshot.data.body)).eur}");
                                                                    ^^^^
/D:/flutter/packages/flutter/lib/src/widgets/async.dart:242:12: Context: 'data' refers to a property so it couldn't be promoted.
See http://dart.dev/go/non-promo-property
  final T? data;
           ^

My Code:

import 'dart:convert';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;

Future<http.Response> fetchBTCPrice() async {
  final response = await http.get(Uri.https('blockhain.info', 'ticker'));
  return response;
}

Widget buildBTCPrice() {
  return FutureBuilder<http.Response>(
    future: fetchBTCPrice(),
    builder: (context, snapshot) {
      if (snapshot.hasData) {
        int? statusCode = snapshot.data?.statusCode;
        if (statusCode == 200) {
          return Text("${BTCPrice.fromJson(jsonDecode(snapshot.data.body)).eur}");
        }
        return Text('$statusCode');

      } else if (snapshot.hasError) {
        return Text('${snapshot.error}');
      }
      return CircularProgressIndicator();
    },
  );
}

class BTCPrice {
  final double eur;
  BTCPrice({required this.eur});

  factory BTCPrice.fromJson(Map<String, dynamic> json) {
    print(json);
    return BTCPrice(
      eur: json['eur']['15m']
    );
  }
}

Last things to mention: I'am running the application on a Android Emulator powerd by Android Studio; and please feel free to hand over any advice you have (in terms of code improvement), even if it is not fixing my issue.

ANSWER

Answered 2022-Mar-29 at 00:29

To get rid of that error you need to use the bang operator to tell the compiler that snapshot.data won't be null.

if (statusCode == 200) {
  return Text(
 "${BTCPrice.fromJson(jsonDecode(snapshot.data!.body)).eur}"); // adding ! on data
}

Edit

The unrelated error you mentioned in your comment:

unexpected character (at character 1) <html><head><title>loading...</title></head><body><script type='text/javasc... ^

would be fixed by changing your GET request from this

final response = await http.get(Uri.https('blockhain.info', 'ticker'));

to this

final response = await http.get(Uri.parse('https://blockchain.info/ticker'));

Source https://stackoverflow.com/questions/71640944

QUESTION

Flutter: How do I disable scrolling for a GridView widget, but have scrolling enabled for the page as a whole?

Asked 2022-Feb-06 at 09:48

I'm building an app where I have a page which gives information about a specific trading card. I want the page to be scrollable, but I also want to have a grid on the page, with each grid cell showing one data point. I made the grid using GridView.count().

My problem is that instead of have a page which I can scroll through, the top half of the page stays static, while the grid is scrollable. How do I make the grid static, while the rest of the page scrollable? I intend to have more data below this grid as well, and I want to user to be able to scroll to see all of it, with the grid being a static component of the page.

Here's my code:

import 'package:flutter/material.dart';
import 'package:pokehub/size_config.dart';
import 'package:pokemon_tcg/pokemon_tcg.dart';

class CardInfo extends StatefulWidget {
  PokemonCard card;

  CardInfo({required this.card});

  @override
  _CardInfoState createState() => _CardInfoState();
}

class _CardInfoState extends State<CardInfo> {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        backgroundColor: Colors.grey[900],
        appBar: AppBar(
          title: Text(
            "Card Profile",
            style: TextStyle(
                color: Colors.white,
                fontFamily: 'Blinker',
                fontSize: SizeConfig.blockSizeVertical * 3),
          ),
          backgroundColor: Colors.red,
          elevation: 0.0,
        ),
        body: Align(
          alignment: Alignment.center,
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              SizedBox(
                height: SizeConfig.blockSizeVertical * 3,
              ),
              Text(
                "Set: " +
                    widget.card.set.name +
                    "  //  Number: " +
                    widget.card.number,
                style: TextStyle(
                    color: Colors.white,
                    fontFamily: 'Blinker',
                    fontSize: SizeConfig.blockSizeVertical * 2),
              ),
              SizedBox(
                height: SizeConfig.blockSizeVertical * 3,
              ),
              Hero(
                tag: 'card' + widget.card.id,
                child: Image.network(
                  widget.card.images.large,
                  height: SizeConfig.blockSizeVertical * 30,
                ),
              ),
              SizedBox(
                height: SizeConfig.blockSizeVertical * 2,
              ),
              Text(
                widget.card.name,
                style: TextStyle(
                  color: Colors.white,
                  fontFamily: 'Blinker',
                  fontSize: SizeConfig.blockSizeVertical * 5,
                ),
              ),
              SizedBox(
                height: SizeConfig.blockSizeVertical * 2,
              ),
              Expanded(
                child: GridView.count(
                  mainAxisSpacing: SizeConfig.blockSizeVertical * 4,
                  crossAxisSpacing: SizeConfig.blockSizeHorizontal * 4,
                  crossAxisCount: 3,
                  children: [
                    Container(
                      padding: EdgeInsets.symmetric(
                          vertical: SizeConfig.blockSizeVertical * 2,
                          horizontal: SizeConfig.blockSizeHorizontal * 2),
                      decoration: BoxDecoration(
                        border: Border.all(
                          color: Colors.white,
                        ),
                        borderRadius: BorderRadius.all(Radius.circular(20)),
                      ),
                      child: Center(
                        child: Column(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                            Text(
                              "Subtypes",
                              style: TextStyle(
                                  color: Colors.white,
                                  fontFamily: 'Blinker',
                                  fontSize: SizeConfig.blockSizeVertical * 3,
                                  fontWeight: FontWeight.bold),
                            ),
                            Text(
                              widget.card.subtypes
                                  .map((e) => e.type)
                                  .join(", "),
                              style: TextStyle(
                                color: Colors.white,
                                fontFamily: 'Blinker',
                                fontSize: SizeConfig.blockSizeVertical * 2,
                              ),
                            )
                          ],
                        ),
                      ),
                    ),
                    Container(
                      padding: EdgeInsets.symmetric(
                          vertical: SizeConfig.blockSizeVertical * 2,
                          horizontal: SizeConfig.blockSizeHorizontal * 2),
                      decoration: BoxDecoration(
                        border: Border.all(
                          color: Colors.white,
                        ),
                        borderRadius: BorderRadius.all(Radius.circular(20)),
                      ),
                      child: Center(
                        child: Column(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                            Text(
                              "HP",
                              style: TextStyle(
                                  color: Colors.white,
                                  fontFamily: 'Blinker',
                                  fontSize: SizeConfig.blockSizeVertical * 3,
                                  fontWeight: FontWeight.bold),
                            ),
                            Text(
                              widget.card.hp!,
                              style: TextStyle(
                                color: Colors.white,
                                fontFamily: 'Blinker',
                                fontSize: SizeConfig.blockSizeVertical * 2,
                              ),
                            )
                          ],
                        ),
                      ),
                    ),
                    Container(
                      padding: EdgeInsets.symmetric(
                          vertical: SizeConfig.blockSizeVertical * 2,
                          horizontal: SizeConfig.blockSizeHorizontal * 2),
                      decoration: BoxDecoration(
                        border: Border.all(
                          color: Colors.white,
                        ),
                        borderRadius: BorderRadius.all(Radius.circular(20)),
                      ),
                      child: Center(
                        child: Column(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                            Text(
                              "Type",
                              style: TextStyle(
                                  color: Colors.white,
                                  fontFamily: 'Blinker',
                                  fontSize: SizeConfig.blockSizeVertical * 3,
                                  fontWeight: FontWeight.bold),
                            ),
                            Text(
                              widget.card.types.map((e) => e.type).join(", "),
                              style: TextStyle(
                                color: Colors.white,
                                fontFamily: 'Blinker',
                                fontSize: SizeConfig.blockSizeVertical * 2,
                              ),
                            )
                          ],
                        ),
                      ),
                    ),
                    Container(
                      padding: EdgeInsets.symmetric(
                          vertical: SizeConfig.blockSizeVertical * 2,
                          horizontal: SizeConfig.blockSizeHorizontal * 2),
                      decoration: BoxDecoration(
                        border: Border.all(
                          color: Colors.white,
                        ),
                        borderRadius: BorderRadius.all(Radius.circular(20)),
                      ),
                      child: Center(
                        child: Column(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                            Text(
                              "Weakness",
                              style: TextStyle(
                                  color: Colors.white,
                                  fontFamily: 'Blinker',
                                  fontSize: SizeConfig.blockSizeVertical * 3,
                                  fontWeight: FontWeight.bold),
                            ),
                            Text(
                              widget.card.weaknesses
                                  .map((e) => e.type + e.value)
                                  .join(", "),
                              style: TextStyle(
                                color: Colors.white,
                                fontFamily: 'Blinker',
                                fontSize: SizeConfig.blockSizeVertical * 2,
                              ),
                            )
                          ],
                        ),
                      ),
                    ),
                    Container(
                      padding: EdgeInsets.symmetric(
                          vertical: SizeConfig.blockSizeVertical * 2,
                          horizontal: SizeConfig.blockSizeHorizontal * 2),
                      decoration: BoxDecoration(
                        border: Border.all(
                          color: Colors.white,
                        ),
                        borderRadius: BorderRadius.all(Radius.circular(20)),
                      ),
                      child: Center(
                        child: Column(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                            Text(
                              "Resistance",
                              style: TextStyle(
                                  color: Colors.white,
                                  fontFamily: 'Blinker',
                                  fontSize: SizeConfig.blockSizeVertical * 3,
                                  fontWeight: FontWeight.bold),
                            ),
                            Text(
                              widget.card.resistances
                                  .map((e) =>
                                      e.type == "" ? "None" : e.type + e.value)
                                  .join(", "),
                              style: TextStyle(
                                color: Colors.white,
                                fontFamily: 'Blinker',
                                fontSize: SizeConfig.blockSizeVertical * 2,
                              ),
                            )
                          ],
                        ),
                      ),
                    ),
                    Container(
                      padding: EdgeInsets.symmetric(
                          vertical: SizeConfig.blockSizeVertical * 2,
                          horizontal: SizeConfig.blockSizeHorizontal * 2),
                      decoration: BoxDecoration(
                        border: Border.all(
                          color: Colors.white,
                        ),
                        borderRadius: BorderRadius.all(Radius.circular(20)),
                      ),
                      child: Center(
                        child: Column(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                            Text(
                              "Retreat Cost",
                              style: TextStyle(
                                  color: Colors.white,
                                  fontFamily: 'Blinker',
                                  fontSize: SizeConfig.blockSizeVertical * 3,
                                  fontWeight: FontWeight.bold),
                            ),
                            Text(
                              widget.card.convertedRetreatCost.toString(),
                              style: TextStyle(
                                color: Colors.white,
                                fontFamily: 'Blinker',
                                fontSize: SizeConfig.blockSizeVertical * 2,
                              ),
                            )
                          ],
                        ),
                      ),
                    ),
                  ],
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}
[enter image description here][1]

ANSWER

Answered 2022-Feb-06 at 09:47

You can provide physics: NeverScrollableScrollPhysics() on GridView to disable scroll effect. If you want scrollable as secondary widget use primary: false,

To have Full Page scrollable, you can use body:SingleChildScrollView(..) or better using body:CustomScrollView(..)

Source https://stackoverflow.com/questions/71005867

QUESTION

Flutter: Circular Color Picker (Package: flutter_colorpicker)

Asked 2021-Dec-19 at 00:02

I used this flutter package to implement a color picker in my app. My Widget looks something like this:

     ColorPicker(
              pickerColor: model.color,
              onColorChanged: (color) {
               ...
              },
              showLabel: false,
              pickerAreaHeightPercent: 0.4,
            )

This works fine and looks like this in the UI:

Now I wondered how I could implement a classical circular color picker. I did not find an example in the official documentation but there is a screenshot in the package description that shows just this:

Does anyone know how to implement this using the same package or can hint me to an example.

ANSWER

Answered 2021-Dec-19 at 00:02

please check out this and you need to palette type as paletteType: PaletteType.hueWheel,. use the same package as used.

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


void main() => runApp(const MaterialApp(home: MyApp()));

class MyApp extends StatefulWidget {
  const MyApp({Key key}) : super(key: key);

  @override
  State<StatefulWidget> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  bool lightTheme = true;
  Color currentColor = Colors.amber;
  List<Color> currentColors = [Colors.yellow, Colors.green];
  List<Color> colorHistory = [];

  void changeColor(Color color) => setState(() => currentColor = color);
  void changeColors(List<Color> colors) => setState(() => currentColors = colors);

  @override
  Widget build(BuildContext context) {
    final foregroundColor = useWhiteForeground(currentColor) ? Colors.white : Colors.black;
    return AnimatedTheme(
      data: lightTheme ? ThemeData.light() : ThemeData.dark(),
      child: Builder(builder: (context) {
        return Scaffold(
          appBar: AppBar(
            title: const Text('Flutter Color Picker Example'),
            backgroundColor: currentColor,
            foregroundColor: foregroundColor,

          ),
          body: Container(
            child: InkWell(
              onTap: (){
                showColorPicker();
              },
              child: Center(child: Text("Color Picker")),
            ),
          ),
        );
      }),
    );
  }

  void showColorPicker() {
    showDialog(context: context, builder: (BuildContext context){
      return AlertDialog(
        title: Text("Pick a color"),
        content: SingleChildScrollView(
          child: ColorPicker(
            pickerColor: Color(0xff443a49),
            paletteType: PaletteType.hueWheel,
          ),
      ),
      );
    });
  }
}

output

Source https://stackoverflow.com/questions/70408001

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install Android-PullToRefresh

You can download it from GitHub, Maven.
You can use Android-PullToRefresh like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the Android-PullToRefresh component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .