Mobile Development Forum

Hi DW. I'm a bit confused and lost on how this App is working called Ha Tunnel Plus (You can check it on Playstore, and have a look on YouTube for the configuration file). Basically it somehow uses the internet connection of the server, it tunnels it to your Android …

## Introduction ## In a previous tutorial, we learned [how to create a notification on Android](https://www.daniweb.com/programming/mobile-development/tutorials/536756/android-native-how-to-create-a-notification#post2282507). In that tutorial, we did not have to request any permission because applications did not need permission to post notifications on Android 12 and below. It has been almost a year since the release …

I'm currently working on enhancing the user experience for the <snipped> app, and I've run into a bit of a roadblock. I'm trying to optimize the game lobby to ensure smooth navigation and quick loading times, especially as our user base continues to grow. However, I'm finding that even with …

Hi all, My team and I is making an open-source library for running AI models on the phone. We are planning to create a very simple SDK which will allow you to download a model and use it on your phone. We plan to release an initial version in a …

We examine the steps involved in developing an iPhone app and their efficiencies. With the help of our blog, you may identify important developer requirements, pick the best programming language, and acquire reliable resources. Existing business owners and startup ventures eagerly anticipate realizing the benefits brought forth by iOS mobile …

Hey Guys, What problems might a business owner face during mobile app development?

I'm planning to develop a mobile application and am in the process of selecting a development partner. With so many options available, what factors should I consider to ensure I choose the right mobile app development company? Are there specific credentials, portfolios, or client testimonials that are particularly telling of …

When my app loads I need to establish the membership "status" of a user. Their "status" will determine how the app behaves. Do I query the database for the "status" value each time the app loads, or can it be sourced from cache? The "status" could change for a user, …

It has to be said that Apple in recent years has not had any particularly eye-catching upgrades. Even, some features that users like very much have been removed, such as fingerprint unlocking. I'm using iPhone 13 now, if I wear makeup sometimes, iPhone 13 can't recognize my face. Once, I …

Hey I want to Develop A mobile app in android for my food business. Can anyone suggest me any company and the cost of the App? Thanks

Hi All, I am Asif. I want to develop a mobile application in Android and iOS using Google AR spatial api. After running the sample applications in Google Code Labs, we are getting an error, VPS is not available in your region. Yes we know it is available mostly in …

Hi DW, I've faced an issue with my project, it has been working these years till I think last year or the other year. When I sync it fails saying unable to resolve dependency no matter which version I try I get similar error differs with version number.

"Hello everyone, I'm currently working on developing a shopping app, and I'd like to gather some insights from the community. What do you believe are the essential key features that should be considered when developing a shopping app? Your expertise and suggestions would be greatly appreciated. Thank you!"

I want to use the seekbar to zoom in and out of the camera from zxing

Does all .apk files can be decompiled no matter on how they are protected and secured, and recompile back in apk file? I have an apk file which i need the source code to change something a little bit. I tried using [javadecompilers](http://www.javadecompilers.com) but i did not get the main …

When working with RecyclerView, always utilize the ViewHolder pattern to improve performance by minimizing the number of findViewById() calls. public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> { public static class ViewHolder extends RecyclerView.ViewHolder { TextView textView; public ViewHolder(View itemView) { super(itemView); textView = itemView.findViewById(R.id.textView); } } @Override public ViewHolder onCreateViewHolder(ViewGroup parent, int …

So here, I am gonna to ask developers around which is the most popular language is used to develop a game for students or professionals.

## Introduction ## In Android Studio, we can run multiple tests in parallel across multiple devices using the dropdown menu.  Running instrumented tests this way is very convenient during development, but there is a problem with this method when your tests are run on a remote build server: * …

Uninstall/reinstall or update Android Studio for this case...? My Android Studio App hasn't been updated and used, for 3 years since September 2020,... on my Windows 11 Pro PC,... Any idea about my question Uninstall/reinstall or update Android Studio ...? I plan return to continue, in Android hybrid app development …

Dear community members, I'm exploring the development of a real estate app and would love to tap into your expertise. In your experience, which programming languages and frameworks have you found to be most effective for building robust and feature-rich real estate apps? Your insights and recommendations will be greatly …

Hi DW, I'm having an issue on my Android studio I'm getting this error `Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.google.gms:play-services-measurement-api:[16.0.3].` Does anyone know how to solve this error?

Hi, I am a beginner. I am trying to get a audio notification when the Android battery is full and low. I understand the logic. As in, check battery status, then if battery_full run Android Media Player. I am trying to use it for my home needs. This is the …

It is difficult to predict with certainty which specific types of apps will be in demand in the future, as it depends on a variety of factors. However, considering recent trends, apps for games will continue to dominate and be the most demanded apps in the future followed by education …

Hello! I have created a project on Android studio, and i use java as langage, i want to create a biometric system with fingerprint, what i mean is that i want to use android fingerprint device to get fingerprint id and store it in MySQL with some personal informations, so …

What are the odds in mobile app development?

IOS development Ble Hid, need to apply for hid authorization from Apple?

I have a requirement that says something like this, I need to make an ios app that reads the hardware data that's being sent, it's ble hid based, and now I need an objective-c demo. Somebody tell me. Thank you

How do I get the physical keys of a connected Bluetooth device and set system related functions for the keys As shown here：   

## Introduction ## When working with ViewModels, instead of using the default, it is best practice that we inject coroutine dispatchers instead of hard-coding them. The reasoning behind this is that it is easier to switch to a testable dispatcher in tests. In this tutorial, we will learn how to …

## Introduction ## When working with RecyclerView, sometimes we are required to scroll the RecyclerView in code, especially after addition of a list item. In this tutorial, we will learn how to scroll to specific positions on a RecyclerView. ## Goals ## At the end of the tutorial, you would …

## Introduction ## In a previous tutorial, we learned [how to set an exact alarm](https://www.daniweb.com/programming/mobile-development/tutorials/537920/android-native-how-to-launch-activity-from-an-exact-alarm). A permission called `SCHEDULE_EXACT_ALARM` was used in that tutorial. Initially, I thought that it was only a normal install-time permission, but I have recently found out that this specific permission also belongs to a rare …

## Introduction ## Taking what we already learned from the previous tutorials about drawing custom shapes and animating along elements along a Path. In this tutorial, we will combine what we learned about animation so far to create an alternating Yin Yang symbol. To those unfamiliar with the Yin Yang …

This is the second part of a series. The first part can be found [here](https://www.daniweb.com/programming/mobile-development/tutorials/538948/android-native-animate-alternating-yin-yang-symbol-part-1). ## Draw The Yin ## Now that we have the Yang drawn, we will continue onto the Yin. 1. Add the Paint for the Yin into the YingYang class. We will use a *stroke* style …

## Animation Strategy ## Welcome to part three of the tutorial; part two can be found [here](https://www.daniweb.com/programming/mobile-development/tutorials/538947/android-native-animate-alternating-yin-yang-symbol-part-2). For this animation, I have chosen to redraw the YinYang Drawable at each frame. This means recreating the YinYang object with different constructor parameters on every frame (the current YinYang implementation has a …

## Introduction ## In the last tutorial, we learned [how to draw basic shapes](https://www.daniweb.com/programming/mobile-development/tutorials/538942/android-native-draw-basic-shapes-on-canvas) on Android using premade methods from the graphics library. In this tutorial, we step up the difficulty a notch by learning how to draw using the Path class. The Path class allows for drawing of technically …

## Introduction ## Even though the built-in vector library included in Android Studio contains many icons readily for use, you might eventually run into a situation where a custom icon is needed. In this tutorial, we will learn how to create our own icons from basic shapes drawn on a …

## Introduction ## Android includes many options to add animations to your app. In this tutorial, we will learn how to add a type of animation called frame-by-frame animation into our Android app. ## Goals ## At the end of the tutorial, you would have learned: 1. How to add …

## Introduction ## In the last tutorial, we learned [how to draw complex shapes](https://www.daniweb.com/programming/mobile-development/tutorials/538943/android-native-draw-complex-shapes-using-the-path-class#post2288657) using a Path object. Using the concepts from the previous tutorial, we will now attempt to animate Views to move along a custom Path. ## Goals ## At the end of the tutorial, you would have …

## Introduction ## Welcome to part two of the tutorial. Let us continue to learn how to animate views along a Path. Part one can be found [here](https://www.daniweb.com/programming/mobile-development/tutorials/538944/android-native-animate-view-along-path-part-1). ## Important Coordinates ## Both the sun and the moon in our app can occupy any one of the three important coordinates …

Give Me Suggestions are welcome

Give me suggestions are welcome

## Introduction ## Cards are a common widget for Material 3-themed applications. Expanding a card after the user performs a click action is a very common behavior. While Android can automatically render the new expanded card automatically, we will have to implement our own animation if we want a smooth, …

## Introduction ## Every Android View has a `layoutParams` property. This property tells the parent ViewGroup how a View wants to be laid out; it is also often used to change the size of a View. In this tutorial, we will learn how to animate Views while modifying their `layoutParams`. …

## Introduction ## When working on Espresso tests, you might have run into a situation where you need to verify what your app does when an activity is in a specific [**Lifecycle**](https://developer.android.com/reference/androidx/lifecycle/Lifecycle) state. In this tutorial, we will learn how to achieve this by using the **ActivityScenario** class. ## Goals …

Hi! I'm here to ask for an opinion as someone who want to develop an Android app for the first time. Can someone suggest to me whether I should use Java or Kotlin to write my code? My app will constantly need to fetch and submit data to phpmyadmin which …

Hello i want to ask How can i learn aflutter and ux/ui to make my app an Design it

Has anyone developed the WhatsApp protocol?

Hi DW. Anyone who knows how can I achieve this? `List<String> dynamic[i];` The reason why I need this is that I'm creating a dynamic list with nested lists so there's no fixed number of data the list can be, this is inside the `for` statement which receive the json data …

## Introduction ## In Android projects, **DataSource** classes act as entry points to interacting with local or remote data sources. Their dependencies tend to be HTTP clients, the database, or DAOs, and their dependents are usually **Repository** classes. In this tutorial, we will learn how to provide a fake **DataSource** …