Get screen width and height in Android

📱💡🔥 Blog Title: "Get Screen Width and Height in Android: A Quick Guide to Solve Your Layout Measurement Woes!"

Introduction: 👋 Hey there, Android developers! Have you ever wondered how to accurately obtain the screen width and height in your apps? 💻📏 We've got you covered! In this blog post, we'll dive into common issues and provide simple solutions. Let's get started, shall we? 😎

The Problem: Your 🔥 coding skills have brought you to a snippet where the screen width and height are required, as shown in the provided context. However, you may be scratching your head 🤔 and wondering how to retrieve these values in Android.

The Solution: Android offers a variety of mechanisms to obtain the screen width and height. Let's explore three common approaches:

1️⃣ Using the WindowManager:

WindowManager windowManager = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE);
Display display = windowManager.getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int screenWidth = size.x;
int screenHeight = size.y;

2️⃣ Utilizing the DisplayMetrics:

Resources resources = getResources();
DisplayMetrics displayMetrics = resources.getDisplayMetrics();
int screenWidth = displayMetrics.widthPixels;
int screenHeight = displayMetrics.heightPixels;

3️⃣ Accessing the ViewTreeObserver:

final View rootView = findViewById(android.R.id.content);
rootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {
        int screenWidth = rootView.getWidth();
        int screenHeight = rootView.getHeight();
        rootView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
    }
});

These methods give you accurate screen dimensions that can be utilized in your layout measurements, just like in the provided context. 📐

Common Pitfalls and Troubleshooting: 🔍 Here are a few common issues you might encounter while implementing these solutions and how to overcome them:

1️⃣ NullPointerException: Ensure that you are calling these methods after the view has been inflated and is accessible.

2️⃣ Deprecated Methods: If you come across deprecated methods, double-check the official Android documentation for the latest alternatives.

3️⃣ Different Units: Remember, the obtained values are in pixels. If you need to convert them to other units (e.g., dp), utilize appropriate conversion functions or the DisplayMetrics density field.

Wrapping Up with a Call-to-Action: 🚀 Now that you've learned how to get the screen width and height in Android, it's time to put your skills into action! 🎉 Implement these solutions and let us know your thoughts in the comments below. Do you have any other cool Android hacks to share? We're all ears! 👂

And hey, if you found this blog post helpful, don't forget to share it with your fellow Android enthusiasts. Let's spread the knowledge together! 🌟

That's all for now, happy coding! 💻✨