Tag Archives: Widget
Download ZIP, Extract it and Show the images file in List in UI
Watch Video Tutorial Add Plugins For downloading, Extracting and saving ZIP in the device, we need some plugins. So open your pubspec.yaml file and add the below plugins. The ‘http‘ package is for downloading the zip file, ‘path_provider‘ is for saving the file inside the device and the ‘archive‘ package is for extracting the… Read More »
TabbedAppBar in Flutter – Android and iOS.
Hello, welcome to another flutter tutorial. This tutorial helps you to create a top TabBar navigation with AppBar. The app will look like this below. Watch Video Tutorial This is actually simple and easy. Let’s start by creating the model class. Our model class is named “Choice“. Now we will create a list of Choices and fill it… Read More »
Carousel in Flutter
Carousels are an awesome way to show a list of images. We will be using a plugin to show the carousel in flutter. Watch Video Tutorial Add Plugin To use carousel we need to add the below plugin to our pubspec.yaml file https://pub.dartlang.org/packages/carousel_slider So open your pubspec.yaml file and add the plugin… … Read More »
Create Custom Widget(Button) in Flutter – Android or iOS
Hello friends, In this article, I will show you how you can create custom widgets in Flutter using Widget Composition. As you know Flutter is cross Platform, so this is gonna work for both Android and iOS. Watch Video Tutorial Let’s start now. I am going to create a custom button just like you see in… Read More »
Load data from internet to a GridView in Flutter with Retry Logic, JSON parsing and Error handling in Flutter
I am assuming that you already have some understanding about Flutter. If you have no information about Flutter SDK, then I could recommend first going to flutter.io and get the initial knowledge. Our Final app will look like this. You can watch the complete video tutorial from here… App will implement GridView JSON Implementation Error Handling Retry Implementation… Read More »
Doing HTTP Calls in Flutter and Parsing Data
Here is a simple example of doing Http calls in Flutter. In this example we will try to fetch some JSON value from the below url https://jsonplaceholder.typicode.com/posts/1 You can read more from here. Add Dependencies First you need to add the http plugin in dependencies. The latest version of http can be found here (https://pub.dartlang.org/packages/http). Example Lets look… Read More »
How to show a Snackbar in Flutter? iOS and Android.
Here is a simple example where the user clicks a button to show a Snackbar. We know that there is no inbuilt snackbar for iOS. But Flutter makes it easy to do without any custom native code. You can see a Demo video here. Here we use two main elements Scaffold Snackbar The Scaffold Widget from the material… Read More »
Uploading Image to Server – Android Eclipse Version.
Hi all, In today’s tutorial I will show you how to send an image to server using POST method in ANDROID. If you are working in Android studio, then checkout the article here. Uploading an image to server is a basic requirement in many of our application. Sending data to server which is using a PHP Script is… Read More »
Creating a Clock Widget in Android with Custom Font.
Hi all if you have been a regular visitor of this website you have seen that I have shown you how to create a simple widget, adding controls to it, adding event handlers in the views etc… Do check this website for more tutorials on widgets. You can find other tutorials by following this LINK. This tutorial is… Read More »
Handling Multiple Instances of a Widget in Android and Identifying each instance with it’s own ID.
Hey everyone…….Hope all are well….. This post is about Android Widgets. This is going to be one of the bigger posts in Coderzheaven. This posts helps you to handle multiple instances of a Widget. Many of our problem is to identify different instances of the same widget. But there is a solution to this problem. Please check out… Read More »
Wave Scale Animation in GridViews in Android
Hello all Previously I have shown many posts where we animate each row of the GridView randomly, linearly etc. GridView RandomFade animation in Android and Cascade animation in a ListView in Android. In today’s post I will show you how to create a wave scale animation in the ListViews. Please refer to my old posts for the extra… Read More »
How to create a beautiful wheel animation in android?
Today’s post is about animation, a beautiful animation, exploring capabilities of android. You can click on the link to download the code. Here we will have three java classes and no XML files. 1. GraphicsActivity.java 2. PictureLayout.java 3. Sweep.java At first we start with PictureLayout.java Now our second java file, GraphicsActivity.java No need to declare this activity in… Read More »
How to use ImageSwitcher in Android?
You can read more about ImageSwitcher here http://developer.android.com/reference/android/widget/ImageSwitcher.html Click on the link below to download the code. This is the layout that contains the ImageSwitcher What we will do is we will load some images into the Gallery and then load each image into the ImageSwitcher on clicking on each item in the Gallery. Here is the java… Read More »
ListView Bottom to Top Animation in Android.
Like my previous posts animation chapter is again continued. This time the animation in on a ListView from Bottom to Top. You have already seen animations from Top to Bottom in my previous posts. See some of my posts here. All animation posts from CoderzHeaven is here Click on the download link at the bottom to download the… Read More »
Creating a Drawable animation in Android.
This is a simple example of how to animate a drawable in Android. This example is from the official android demo applications. Here we have 5 java classes. AnimateDrawable.java AnimateDrawables.java GraphicsActivity.java PictureLayout.java ProxyDrawable.java AnimateDrawable.java AnimateDrawables.java GraphicsActivity.java PictureLayout.java ProxyDrawable.java Download the complete source code from here Join the Forum discussion on this post
GridView RandomFade animation in Android
In some of my older posts I have already showed a lot of animations on ListView and GridViews. Search coderzheaven for ListView and GridView animations if you want to see the articles and posts. This is also yet another post on animation. Here what I will do is create an animation in a GridView such that all cells… Read More »
Multiple Selection GridView in Android
This is a simple post that helps you to do multiple selection in a ListView. Check out previous posts for 3D animation in a Listview. At first we will see the XML layout file. This layout contains a gridview since we are dealing with it only. grid_1.xml Now the MainActivity that does all the work for the multiple… Read More »
Different types of Animation – Push Up in, Push Up Out, Push Left in, Push Left Out, HyperSpace In, HyperSpace Out in a ViewFlipper in Android.
Hello all…. This is going to be a big post.. Check out my previous post for a rotate3D animation between a ListView and an Image. How to create a rotate 3D Animation between a ListView and an ImageView in Android? Today I will show you different types of Animations using ViewFlipper in a textView. Here we have 4… Read More »
Custom Spinner in Android Redone using BaseAdapter..
I have already shown another example of creating custom spinner in android in this post. That was by extending the ArrayAdapter class, Now it’s using the baseAdapter class. You all knew that a spinner or combobox is an inbuilt widget in android. And Like any other widgets spinners are also customizable. Here is a simple example to customize… Read More »
CoverFlow in Android – Complete implementation with source code.
Have you seen the coverflow in iPhone. This is the Android implementation of CoverFlow. Please leave your comments if this article is helpful for you. Let’s see how. This is the CoverFlow class that extends the Gallery. Now the main activity that implements the coverflow. OK Done. Now go on and Run your project. Download the Complete android… Read More »
How to crop an Image in Android?
This is a sample program that launches the camera and crop the captured image. Check this link to another crop image example. http://www.coderzheaven.com/2011/03/15/crop-an-image-in-android/ This is the layout xml. activity_main.xml Now this is the Main Java File that implements the crop functionality. Here we are using the “com.android.camera.action.CROP” Intent to crop the Image passing the captured Image URI to… Read More »
How to call a function using a String in Android and also pass parameters along with it.
Hi all … Today’s post is all about calling functions using Simple Strings. Here we will do two things. 1. Call a function without parameters. 2. Call a function with parameters. This is the class which contains the functions that we are going to call using “simple Strings”. Now this is the main activity that calls these functions.… Read More »
How to load a spinner with values from SQlite Database in android?
Here is a simple example showing how to load a database values in a spinner in android. OK we will start. This is the layout for the spinner row. spinner_row.xml This is the layout for the interface. activity_main.xml Now this is the MainActivity.java file that uses the spinner and the database. Join the Forum discussion on this post… Read More »
How to pass an Object from One Activity to another in Android.
Hello all This is a simple post that shows How to pass an Object from One Activity to another in Android. I am going to pass the following object from One Activity to another. MyObject{ String name; String website; } This is the class that defines the Object. This is the first activity that sends the object to… Read More »
