Separate APKs for Different Screen Configurations Publishing device-specific APKs allows optimized distribution for various screen sizes. Google Play handles this automatically when you upload an Android App Bundle. Multi-Window Support Starting with Android 7.0 (API 24), all applications can run in...
Matrix operations in Android provide powerful tools for image manipulation. The Matrix class represents a 3x3 transformation matrix that can scale, rotate, and translate graphical elements. Matrix transform = new Matrix(); transform.setValues(new float[]{ 2, 0, 0, 0, 1, 0, 0, 0, 1 }); // Resulting t...
Implementation Steps Overview Step Description 1 Set up a new React Native project 2 Create a custom Android native module and register it 3 Call native Android methods from React Native JS code 4 Trigger React Native event listeners from Endroid native code Step 1: Initialize React Native Project R...
Setting an Activity to hide the title bar or display fullscreen is common in development, as phone screens are limited in size. Sometimes we want to show more information by removing unnecessary interface elements, such as the title bar and status bar; sometimes for simplicity and aesthetics. Here a...
A custom drawable implementation for creating a marquee animation offers smootehr performance compared to traditional view-based approaches, primarily due to optimized color interpolation. public class AnimatedGradientBorderDrawable extends Drawable { private Paint borderPaint; private RectF drawing...
Creatnig an Activity in Android Extend the Activity class or its subclasses Declare the Activity in AndroidManifest.xml Create a layout and set it in Activity's onCreate method Example manifest declaration: <activity android:name=".TestActivity" android:exported="true" android...
When updating data in a RecyclerView or ListView adapter, developers may observe visual flickering during refreshes, degrading user experience. This issue typically arises from excessive or rapid UI redraws triggered by full dataset updates. To address this, implement efficient update strategies: Le...
When you call startActivity() from an Activity, a complex chain of framwork components comes into play to handle the transition to a new screen. This article examines how the launch request propagates through the system and what happens at each stage. Entry Point in Activity The public startActivity...
Core Layout Mechanism in Views The layout() method is responsible for positioning a View on the screen by establishing its boundaries through four critical parameters: mLeft, mTop, mBottom, and mRight. These values define the rectangular area occupied by the View. When examining the internal impleme...
In Android applications, connecting to Wi-Fi is a common requirement. Android 8.0 introduced the WifiNetworkSpecifier class, making it easier and more flexible to connect to a specific Wi-Fi network via code. This article explains how to use the WifiNetworkSpecifier class to connect to a Wi-Fi netwo...