Android Fundamentals - Day 3 : Activities & Intents

Choose the correct option regarding activity in Android.

• An activity is a window that contains the user interface of your application.

• An application can have zero or more activities.

• An application can have only one activity.

• None of the above

Suppose that there are two activities in an application named ActivityOne and ActivityTwo. You want to invoke ActivityTwo from ActivityOne. What code you will write?

• Intent intent=new Intent (this, ActivityTwo.class);

  startActivity(intent);

• startActivity(new Intent(this, ActivityTwo.class));

• None of the above.

What is the permission for using the camera?

• android.permission.USE_CAMERA

• android.permission.CAMERA

• android.permission.hardware.CAMERA

• None of the above.

If you need to pass data back from an activity, Which method you should use?

• startActivity()

• startActivityForResult()

• ActivityForResult()

• None of the above

If you want to navigate from one activity to another then android provides you which class?

• Intent

• startActivity

• Object

• None of the above

The types of intents in android is\are

• Implicit Intent

• Explicit Intent

• Start Intent

• Stop Intent

In android mini-activities are also known as.

• Fragments

• Activity

• Adapter

• None of the above

Suppose that there are two activities in an application named FirstActivity and SecondActivity. You want to send website name from ActivityOne to ActivityTwo. What code you will write? Suppose that website name is “Quizizz.com”

• Intent intent=new Intent (this, SecondActivity.class);

  intent.putExtra("name", “Quizizz.com”);

  startActivity(intent);

• Intent intent=new Intent (this, SecondActivity.class);

  intent.putExtra( “Quizizz.com”);

  startActivity(intent);

• Intent intent=new Intent ();

  intent.putExtra("name", “Quizizz.com”);

  startActivity(intent);

• startActivity(new Intent().putExtra("name","Quizizz.com"));

How will you reference a textbox control in java file, that is available in XML file and the ID is txtName

• EditText txtEmpName;

  txtEmpName=findViewById(R.id.txtName);

• EditText txtEmpName;

  txtEmpName=(EditText)findViewById(R.id.txtName);

• EditText txtEmpName;

  txtEmpName=(EditText)findViewById(txtName);

• None of the above.

What is the default layout in android application?

• RelativeLayout

• TableLayout

• LinearLayout

• FrameLayout