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Developing Android Apps
https://droidkingforum.co.uk/blog/android-leader-business-development/
Android apps are software programs that run on the Android OS. They can be downloaded on Android phones, tablets and televisions. They are extremely adept at using the camera, touchscreen, and GPS capabilities of the device. Having lots of apps installed on an Android phone however, could affect the battery’s life and performance.
Understanding the Android platform and its design principles is essential in the creation of Android apps. It also requires creating an appropriate app architecture that is able to separate UI and OS-related code into parts which share responsibilities. The system is able to activate these components asynchronously using broadcast mechanisms that are activated by the intents.
Kotlin is becoming more popular as a language that is used for Android development. Both are supported by Android SDK. A large developer community is online to help newcomers to the language understand and resolve issues.
The Android OS is divided into layers. The application layer comprises the standard apps that come with the OS, in addition to any apps that are proprietary and integrated with specific devices like phones with a music player and dialer. The Android app layer also includes custom firmware such as CyanogenMod and OMFGB which can be installed on specific devices to alter their functionality.
Another reason that blocks certain apps from functioning is compatibility. If an app was pushed out to the US market but isn’t compatible with your European device, it won’t function on it and will appear as “incompatible” in the Play Store.