195 Topics
 | |
 | ## Introduction ## I was recently working on a project that required me to extract location information from the [OpenStreetMap](https://www.openstreetmap.org/#map=15/51.5226/-0.1567), an open license map database of the world. The OpenStreetMap database allows you to extract location data along with the location meta information in the form of tags. My task … |
 | ## Introduction ## In the last tutorial, we learned [how to send messages to a RabbitMQ queue](https://www.daniweb.com/programming/web-development/tutorials/538621/how-to-send-messages-in-rabbitmq). In this tutorial, we will learn how to consume those messages in Kotlin. ## Goals ## At the end of the tutorial, you would have learned: 1. How to use the RabbitMQ Java … |
| | ## Introduction ## In the last tutorial, we learned [how to set up our own RabbitMQ exchanges and queues](https://www.daniweb.com/programming/web-development/tutorials/538620/how-to-create-exchanges-and-queues-in-rabbitmq-server). In this tutorial, we will learn how to send messages to our custom **daniweb-exchange**. ## Goals ## At the end of the tutorial, you would have learned: 1. How to send … |
| | ## Introduction ## In the [last Selenium tutorial](https://www.daniweb.com/programming/software-development/tutorials/538447/basic-interactions-with-web-elements-in-selenium), we learned how to perform basic actions such as clicking and sending keystrokes. In this tutorial, we will learn how to do another action, which is the scrolling action. ## Goals ## At the end of the tutorial, you would have learned: …  |
| | ## Introduction ## Welcome to part 2 of the Selenium scrolling tutorial. Please follow the directions in [part 1](https://www.daniweb.com/programming/software-development/tutorials/538448/perform-scrolling-actions-in-selenium-part-1) to set up your project. In part 1, we learned how to let Selenium decide how it wants to scroll to elements. In this part 2, we will learn about a … |
| | ## Introduction ## When working with Selenium, you might have run into a situation where you have to wait for long-running tasks to complete before you can interact with elements. Fortunately, Selenium has support for such situations via its many *waits* API. In this tutorial, we will learn how to … |
| | ## Introduction ## When creating a Selenium test, it is common for developers to want their scripts to take the same actions as a real human user would take. These action often includes clicking on elements or inputting text data into forms. In this tutorial, we will learn how to … |
| | ## Introduction ## While creating Selenium tests, you might have found that inspecting elements manually using the web browser’s inspector could be tedious. Even after you have found the element, you still have to go through the pain of looking up the correct **xpath** syntax for this specific element. To … |
| | ## Introduction ## Selenium is one of the most popular web browser automation tools out there. There is no restriction on what you can use Selenium for. You can use it to build a GPU scalping bot (*please don’t*) or build e2e tests for your website. In this tutorial, we … |
| | ## Introduction ## When working on Java applications, it is very likely that you will run into JDBC at some point. While you are unlikely to have to work directly with JDBC when using frameworks, it is still important to know how the connection is established and how queries are … |
| | ## Introduction ## In this tutorial, we will learn how to load data asynchronously into a **ListAdapter** (*a subclass of **RecyclerView.Adapter***). ## Goals ## At the end of the tutorial, you would have learned: 1. How to serve asynchronous data to a **ListAdapter**. ## Tools Required ## 1. Android Studio. … |
| | ## Introduction ## Starting from Android 10 (*API 29*), Android places many restrictions on how apps can launch activities from the background. There are a couple of exemptions, which can be found on this [list](https://developer.android.com/guide/components/activities/background-starts#exceptions). At the end of the list is the usage of the *dangerous* permission `SYSTEM_ALERT_WINDOW`. I … |
| | ## Introduction ## Among all of the Android libraries, Paging 3 is perhaps one of the hardest to understand. Personally, I think the problem with Paging 3 are: 1. Developers need to learn a lot of custom classes before they can understand how Paging 3 works under the hood and … |
| | ## Introduction ## The Android Paging 3 library can operate in two modes, with an offline Room database as a source of truth or without one. In this tutorial, we will look at how to use Paging 3 with a local Room database. This tutorial expands on the previously published … |
| | ## Introduction ## When working with music files, you might have wondered how to load display art from Audio files. In this tutorial, we will learn how to load thumbnails for audio files. ## Goals ## At the end of the tutorial, you would have learned: 1. How to load … |
| | ## Introduction ## MediaPlayer (`android.media.MediaPlayer`) is a popular way to play media files, and combining it with a SeekBar can greatly improve the user experience. In this tutorial, we will learn how to synchronize a MediaPlayer progress to a SeekBar position. ## Goals ## At the end of the tutorial, … |
| | ## Introduction ## When working with a Room database, we are mostly restricted to save data using primitives (*and boxed primitives*). Reference types are not supported right out of the box, but can be enabled by creating additional [TypeConverter](https://developer.android.com/reference/androidx/room/TypeConverter). If you are familiar with ORM-light frameworks such as Spring JDBC, … |
 | Hello Daniweb, I was wondering how come a cURL API I made to call a function from my other website (but on the same hosting plan) no longer works. I even tried making a test API to call in the same directory, eg... :api.php <?php die(json_encode("something")); ?> :testing.php <?php $url …  |
| | ## Introduction ## The **Storage Access Framework** (SAF) provides a great way to access files exposed by other applications via their own DocumentProviders. In this tutorial, we will learn how to use the SAF in our App. ## Goals ## At the end of the tutorial, you would have learned: … |
| | ## Introduction ## In Android development, the MediaStore API is a great API to use if you are building a music player. In this tutorial, we will learn how to query for audio files in the MediaStore database. ## Goals ## At the end of the tutorial, you would have … |
| | ## Introduction ## WorkManager is the preferred method of managing background tasks on Android. It also includes convenient extensions for RxJava3 and Kotlin Coroutines. In this tutorial, we will learn how to use WorkManager as well as how to observe the background task with the debugging tool Background Task Inspector. … |
| | ## Introduction ## In this tutorial, we will learn how to capture a picture with the new **ActivityResult** APIs(`androidx.activity.result`), which replace the `startActivityForResult()` and `onActivityResult()` APIs(*from Activity class*). Additionally, we will also learn about the ContentProvider **FileProvider**, which we will have to set up to save our images. ## Goal … |
| | ## Introduction ## Based on the latest report from Appbrain, Samsung has the highest market share(*>35%*) among all of the Android OEMs, therefore it is important that your apps are tested against Samsung phones. In this tutorial, we will learn how to load Samsung Emulator skins onto our emulator devices. … |
| | ## Introduction ## Regardless of whether you like notches on your devices or not, they exist, so as developers, we will have to adapt our Apps to work with them. In this tutorial, we will learn how to adapt our code to work with notches. The device used in this … |
| | ## Introduction ## UI Automator is a library that allows you to create tests that can interact with other components besides your App, such as Settings or other Android components. In this tutorial, we will learn how to incorporate UI Automator into our tests. ## Goals ## At the end … |
| | ## Introduction ## Notification is a great way to display information outside of your Android application. Your end users most likely already interact with notifications everyday, so knowing how to create notifications can greatly boost your user experience (*but can also backfire if used incorrectly*). In this tutorial, we will … |
| | ## Introduction ## Starting on API level 25, static Shortcuts can be used to quickly navigate to a specific point in your app. In this tutorial, we will learn how to create static shortcuts for an Android app. ## Goals ## At the end of the tutorial, you would have … |
| | ## Introduction ## All TextView objects have a special attribute called `textAppearance`. This attribute can be used to set the style for text content in a TextView without affecting other styling attributes on the same TextView object. In this tutorial, we will learn how to apply `textAppearance` to TextView objects. … |
| | ## Introduction ## In Java 8, `@Repeatable` was introduced and this is the recommended way to create repeating annotations. We still have to create a holder Annotation(*annotation that holds an array of other annotations*), but we no longer have to declare the holder Annotation at the callsite. This tutorial aims … |
| | ## Introduction ## Based on the 2020 Java Ecosystem survey from Jetbrains, 75% of Java developers are still using JDK 8. JDK 11 introduces `HttpClient`, which replaces the legacy `HttpURLConnection` API. For this tutorial, we will build a `HttpClient` that consumes the free Cat Facts API. ## Goals ## At …  |
| | ## Introduction ## This tutorial teaches you how to implement the Type-safe Builder pattern using Kotlin. This pattern allows developers to create declarative and concise DSLs. Our implementation will be a Burger Builder that enables our users to create Burger objects expressively. ## Goals ## At the end of the … |
 | Hello DaniWeb Community, I am a newbie in PHP, but I tried to create a plugin for my CRM platform using API to get informations, but I get some errors: **Notice: Undefined index**. [Click here for an image with the errors.](https://i.gyazo.com/6926d234978766542f544ed1e31e465c.png). Here are the lines where I got the errors: … |
| | Hi community, I developed the prototype of a web app that helps you to create custom design Stripe forms without coding. It does not require any front-end or back-end development. Just pick a template, customize its look, add Stripe API keys, paste the generated code into your page, add products …  |
 | how to handle nested object with map for display on flatlist or text or other component at react native. i tried to display using text and flatlist but didnt work, i want to display like this  this is my code, can anyone help me const Schedule = () => … |
 | Hello Daniweb Family, I am trying to create something like a "Earthnull" look alike. I am not good in coding and try to find something that can help me to start on. I found something very similar on what will be the target output. HTML: <!DOCTYPE html> <html lang="en"> <head> … |
| | For those of you who remember, the old DaniWeb API went away over the summer when we switched to the Dazah platform. We have a new little API launched now to access articles/posts. However, you can now use Dazah to connect with the entire DaniWeb community. https://www.daniweb.com/welcome/api |
| | Hi, Unfortunately all of the Dazah integration stuff with DaniWeb is taking *much* longer than anticipated. I'm still working to try to get it out for you guys, but it's just taking a really long time. That being said, now that the concept of a Dazah login has kind of … |
 | Calculate the product of two numbers without using the multiiplication (*) operator. Consider the sample output. Enter 1st number: 2 Enter 2nd number: 2 Product: 4 |
| | Hi everyone, I really hope that you can help me diagnose an issue with my new API. I'm having the following issue: I'm not happy with the performance of the app client at http://app.dazah.com that connects to it ... It uses cURL to issue about 3-4 API requests per page … |
| | Hey everyone, Sorry that private messaging is still down. It's one of the main features that is being implemented through Dazah. Unfortunately, it wasn't until sticking it into a production environment when I realized that its performance is subpar and the algorithms need a major overhaul. That's what I've been … |
| | What's the current status of the API following the update to tags? For searching, can ony see: `http://www.daniweb.com/api/articles/search?query=blah` which gives the same results regardless of the query text (and the 'members' equivalent, which seems to work). Was there not a tags endpoint before? Can't remember. Anyhow, was thinking of a … |
| | This is an important notification that DaniWeb is in the process of being upgraded, and will most likely be down and/or in read-only mode for the remainder of th is evening. When it comes back up, it *may* be buggy ... we'll see. I've rewritten every single line of code … |
| | Hello Daniweb Community, I was wondering if someone could help me with the PayPal PHP SDK (version 1.3.2), I'm just going off the examples they have provided [here](http://paypal.github.io/PayPal-PHP-SDK/sample/) focusing on [this](http://paypal.github.io/PayPal-PHP-SDK/sample/doc/payments/CreatePaymentUsingPayPal.html) I was just wondering if there is a way to attach delivery instructions (coming from the website, sending them … |
 | Hey, I have visited Daniweb after few months. I have seen "API" options in my profile. How can we use it? Is it similar to fb apis, twitter apis? Thanks. |
 | There are two very obvious truths which need to be stated before going any further: Truth 1 - prevention is better than cure, so don't visit 'dodgy' sites or download anything anyone sends you a link to, and do keep your PC as secure as possible with the help of …  |
| | Hello Daniweb Community, I'm wanting to incorporate my Facebook pages reviews into my website but I can't see the manage to get a permanent access token. I've tried the same key (which is permanent) that I use to get the news feed but that doesn't work with the reviews. At … |
| | ## Contents ## Overview 1. Alternatives to Deprecated mysql_* Functions 2. SQL Injection: What to do with $_POST and $_GET variables 3. How to Insert Tablenames and Fieldnames Properly 4. What to do With Dynamic Values? 5. How to Use Aggregate Functions (COUNT, SUM, MIN etc) 6. How to Paginate …  |
 | Imagine this, (names made up or/and don't apply to current situation, names used/imagined only for purposes of explaination) There's server called `daniweb.com`, it's an API server. You can get quite chunk of data out of it. But for some reason, the one who orders the project, demands that we request … |
 | --Hi Daniweb. 1st of all I apologize if I'm asking this Qn. in a wrong place,but as I came across this subject while I'm doying PhP code and so I thought I'd share it here as I hope someone may be came across the same scenario as I have. The … |
| | Hello guys! I have an idea for daniweb that can get it more users. I know it's a fun forum, but there also is stack overflow. Which is very popular. But what if, we used the github API so that we can have collaborated projects on the forum. I posted …  |
The End.