The <uses-feature> element in an Android manifest informs external systems about hardware or software capabilities an app requires or optionally uses. It enables services such as Google Play to filter apps so that they are visible only on devices meeting those capability requirements. Syntax &...
Implementing a Custom OkHttpStack for Volley public class OkHttpStack extends HurlStack { private final OkHttpClient baseClient; public OkHttpStack(OkHttpClient client) { this.baseClient = client; } private void configureRequestMethod(okhttp3.Request.Builder builder, Request<?> volleyRequest)...
What is a unit test? In the context of Android development, a unit test targets the smallest testable parts of an application, such as individual methods within a class. The testing pyramid places unit tests at the fonudation because they are fast to run and provide immediate feedback on logic corre...
Android offers two primary approaches for capturing images: delegating to a system camera application via an implicit Intent, or directly controlling the hardware using the Camera API. Deleagting to the system camera application involves constructing an Intent with the ACTION_IMAGE_CAPTURE action. T...
The <grant-uri-permission> Element Syntax <grant-uri-permission android:path="string" android:pathPattern="string" android:pathPrefix="string" /> Contained Within <provider> Description Defines a subset of application data within the parent content pro...
A known issue on certain Android handsets involves abrupt disconnections when invoking requestMtu immediately after establishing a GATT connection. This behavior can cascade into subsequent connection attempts failing with a SecurityException that mentions requiring BLUETOOTH_PRIVILEGED permission....
The following code demonstrates the implementation of user authentication within an Android chat application named YQ. The login activity handles user input and initiates the authentication process: public class LoginActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceS...
Screen mirroring an Android device to a computer is a common need, but seamless integration is often limited to same-brand ecosystems (e.g., Huawei, Honor, Apple). For cross-brand setups, many third-party tools are either paid or bloated—until you discover scrcpy. scrcpy Overview GitHub Repository:...
Hardware Configuration Requirements Applications define required hardware capabilities using <uses-configuration>. This prevents installation on devices lacking essential inputs. It is recommended to support directional keys for accessibility, or alternatively declare touch requirements via &l...
The Android-PickerView libray provides a flexible solution for implementing time selection functionality in Android apps. With over 10k GitHub stars, this framework offers extensive customizasion options including dialog positioning, item count, button text, and color schemes. Dependency Setup imple...