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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

 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
Support
Quality
Quality
Security
Security
License
License
Reuse
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

securitySecurity

  • 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

buildReuse

  • 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!

License

copy iconCopydownload iconDownload
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.

Community Discussions

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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

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 .

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