Android Interview Questions
Android is an open-source, Linux-based operating system used in mobiles, tablets, televisions, etc.
Andy Rubin.
Following is a list of components of Android application architecture:
Open-source: It means no license, distribution and development fee.
Platform-independent: It supports Windows, Mac, and Linux platforms.
Supports various technologies: It supports camera, Bluetooth, wifi, speech, EDGE etc. technologies.
Highly optimized Virtual Machine: Android uses a highly optimized virtual machine for mobile devices, called DVM (Dalvik Virtual Machine).
Yes, an android app can be developed in C/C++ also using android NDK (Native Development Kit). It makes the performance faster. It should be used with Android SDK.
The core building blocks of Android are:
Activity is like a frame or window in java that represents GUI. It represents one screen of android.
There are 7 life-cycle methods of activity. They are as follows:
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It is a kind of message or information that is passed to the components. It is used to launch an activity, display a web page, send SMS, send email, etc. There are two types of intents in android:
Sưu tầm: Nguyễn Thị Bảo Trang
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