App development – Lobby functionality optimisation

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 various optimizations in place, there's still a noticeable delay when fetching and displaying the available game rooms, particularly during peak usage hours. I've tried implementing caching strategies and minimizing network requests, but the issue persists. Does anyone have suggestions or best practices for optimizing the lobby functionality in real-time multiplayer games like ours, particularly in terms of reducing latency and improving overall performance?

How to Optimize RecyclerView performance by implementing the ViewHolder

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 viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_layout, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        holder.textView.setText("Item " + position);
    }

    @Override
    public int getItemCount() {
        return 100; // Example size, use your actual data size here
    }
}

By caching references to views in the ViewHolder, you avoid repeatedly calling findViewById() in onBindViewHolder(), resulting in smoother scrolling and improved efficiency.

Context: The ViewHolder pattern is crucial in Android development, especially when dealing with RecyclerViews. It's included here because optimizing RecyclerView performance is a common concern for Android developers. Without ViewHolder, each call to findViewById() in onBindViewHolder() can lead to performance issues, especially with large datasets. Implementing this pattern significantly enhances app responsiveness and user experience.

Has anyone studied at Tech? What do you think of Tech?

Hello everyone, I am an entrepreneur and I would like to expand my knowledge to improve my business, I am currently interested in specializing in Android App Development and I am looking for an affordable alternative that will allow me to study remotely for business reasons.

I have seen a university called Tech but I don't know anything about it, do you have any experience of having studied at Tech or any other information that could be useful to me apart from what appears on your website? Thank you.

Issue with FCM in Android Studio

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.

Uninstall/reinstall or update Android Studio for this case…?

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 & TESTING, mainly Cordova CLI
And may involve in Ionic-app-development...
And may involved in native Android Development with Java & Kotlin...
Before 10 years i was developing Java Android Apps but stopped in 2-3 years since, as preferred PHP & Laravel web development...
Well...?

Refresh existing expired notification tokens

Hi Everyone ,

I'm in a bit of a pickle, hopefully someone can provide some guidance.

I have stale Firebase notification tokens in a database for an existing Xamarin application, initially (years back) the application never contained logic to refresh notification tokens.

With the most recent update to the application a background job was implemented with the intention of refreshing tokens, the problem is refreshing existing stale tokens, it doesn't seem that the job runs automatically after the application update is installed (I know this may seem dumb to the more experienced dev, please excuse me).

Technical information:

I've made use of Shiny.Jobs to implement the background job.
I'm currently using Xamarin version number 4.8.0.1451

Types of Resources for Medical Delivery App Developers

I am looking for resources for medical delivery app developers. I am particularly interested in learning about:

  • The different technologies that can be used to develop medical delivery apps.
  • The regulatory requirements for medical delivery apps.
  • The best practices for designing and developing a user-friendly medical delivery app.
  • The challenges and solutions in developing a medical delivery app.

Will iPhone 15 bring new updates?

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 failed to unlock many times with "iphone unavailable". Fortunately, I solved it with TunesKit iPhone Unlocker. I heard that the iPhone 15 will bring fingerprint unlocking back. Just look forward to it.

The Advantages of On-Demand Mobile App Development

Hello, fellow forum members,

Today, I would like to discuss the numerous benefits that come with on-demand mobile app development. In recent years, the on-demand economy has gained significant traction, revolutionizing the way businesses operate and enhancing user experiences. Let's explore some of the advantages this approach offers:

Convenience: One of the key benefits of on-demand mobile app development is the convenience it brings to users. This convenience factor saves time and effort, making it a preferred choice for many consumers.

Enhanced User Experience: On-demand apps focus on delivering a seamless and personalized user experience. As a result, users feel more connected and engaged, leading to higher satisfaction and loyalty.

Increased Efficiency: On-demand mobile apps streamline various processes and eliminate intermediaries, improving efficiency. On the customer side, it translates to faster service delivery, reduced wait times, and efficient communication channels.

Flexibility and Scalability: On-demand app development offers flexibility and scalability, allowing businesses to adapt to changing market demands. This adaptability empowers businesses to expand their reach, add new features, and stay ahead of the competition.

Real-Time Tracking and Transparency: Many on-demand apps provide real-time tracking and transparency features. Such features enhance trust and reliability, resulting in improved customer satisfaction.

What are your thoughts? Have you experienced the benefits of on-demand apps firsthand? Let's discuss and share our insights!

Battery Full / Low Indicator app

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 MainActivity.java I have

package me.adminweb.batterydost;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.media.MediaPlayer;
import android.os.BatteryManager;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Are we charging / charged?

        int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS, -1);
        boolean isCharging = status == BatteryManager.BATTERY_STATUS_CHARGING ||
                status == BatteryManager.BATTERY_STATUS_FULL;

       // How are we charging?
        int chargePlug = batteryStatus.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
        boolean usbCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_USB;
        boolean acCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_AC;

        if(status == BatteryManager.BATTERY_STATUS_FULL){

            //Play sound using Android MediaPlayer

            MediaPlayer mediaPlayer = MediaPlayer.create(context, R.raw.batteryfull);
            mediaPlayer.start(); // no need to call prepare(); create() does that for you
        }

Looks like I am missing a few things. I know @Dani through another forum. So thought of seeking help here. Would be nice if you can help me build this app. Thanks.

Unable to resolve dependency

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?