Android apps are bits of software that run on the Android operating system. They can be downloaded on Android devices like tablets, TVs and phones. They are very good in making use of the touchscreen, camera and GPS features of the device. The presence of a lot of apps on an Android phone, however, can affect battery life and performance.
Understanding the Android platform and its design principles is vital in the creation of Android apps. It also means creating an appropriate app architecture that is able to separate UI and OS-related code into parts that share responsibilities. These components can be activated in asynchronous fashion by the system via a broadcast mechanism triggered by the intents.
Java is the preferred language for Android development, although Kotlin has gained a lot of attention in recent years. Both languages are supported by Android SDK. Online, there’s a huge group of developers who can help newcomers get used to the language and resolve any problems.
The Android OS itself is divided into several layers, with the application layer containing the standard apps that ship with the operating system, and also the proprietary apps that are bundled with a specific device, such as the music player or phone dialer. The Android application layer is comprised of customized firmware, such as CyanogenMod or OMFGB. They can be installed to modify the functionality of specific devices.
Another reason that hinders certain apps from working is compatibility. If an app has been released 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.
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