Q1. Two components are required for any list implementation in Android: a ListView widget and an Adapter. Define Adapter then discuss the main subclasses of BaseAdapter class and their utilization in details.

Q2. Compare BroadcastReceiver and BatteryManager? Is it mandatory to use BatteryManager when we use BroadcastReceiver? Why?

Q3. To use a network sensor, you need to implement four steps. Wirte the code required for each of the following steps:

1. Declare a location manager variable and a network listener variable.

2. Access/reference to the location Manager.

3. Instantiate the LocationListener and assign it to the network listener. Write the four methods that need to be implemented. No implementation is required.

4. Send a message to the LocationManager to begin listening for location changes of the Network sensor.

Q4.The user interface classes in iOS are contained in the UIKit framework, discuss the main classes in the UIKit framework and their function and hierarchy.

Q5. What is a View Controller? Describe the three files, by which the View Controller is managed.