Question: What role does Dalvik play in Android development?
Answer: Dalvik serves as a virtual machine, and it is where every Android application runs. Through Dalvik, a device is able to execute multiple virtual machines efficiently through better memory management.
Question: What are Intents?
Answer: Intents displays notification messages to the user from within the Android enabled device. It can be used to alert the user of a particular state that occurred. Users can be made to respond to intents.
Question: What is the function of an intent filter?
Answer: Because every component needs to indicate which intents they can respond to, intent filters are used to filter out intents that these components are willing to receive. One or more intent filters are possible, depending on the services and activities that are going to make use of it.
Question: What is the importance of Default Resources?
Answer: When default resources, which contain default strings and files, are not present, an error will occur and the app will not run. Resources are placed in specially named subdirectories under the project res/ directory.
Question: How are escape characters used as attribute?
Answer: Escape characters are preceded by double backslashes. For example, a newline character is created using ‘\\n’
Question: What are the core components under the Android application architecture?
Answer: There are 5 key components under the Android application architecture: – services
– intent – resource externalization – notifications – content providers
