Question

Create an iOS App in xcode with 3 screens, and add some interface elements into each interface, including buttons on each interface, i.e. page 1: “Next Page”, page 2: “Next Page” and “Previous Page” and page 3: “First Page” and “Previous Page”. When a button is touched, move to the corresponding page (or screen). Include TextFields in page 1 and page 2 and pass the input values in the TextFields to Screen 2 and Screen 3 respectively.

Answer 1

Screen1:

FirstPage:

Firstpage.xml:

<RelativeLayout>

<EditText

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:id="@+id/editText"/>

<Button

android:text="NextPage"

android:id="@+id/button"

android:onClick="showSecond"/>

</RelativeLayout>

Screen2:

SecondPage.xml:

<RelativeLayout>

<EditText

android:inputType="textName"/>

<Button

android:text="NextPage"

android:onClick="showThird"/>

<Button

android:text="PreviousPage"

android:onClick="showFirst"/>

</RelativeLayout>

Screen3:

ThirdPage:

ThirdPage.xml:

<RelativeLayout>

<EditText

android:inputType="textName"/>

<Button

android:text="FirstPage"

android:onClick="showFirst"/>

<Button

android:text="PreviousPage"

android:onClick="showSecond"/>

</RelativeLayout>

FirstPage.java:

public class FirstPage extends AppCompatActivity{

EditText et;

@override

protected void onCreate(Bundle savedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.activity.first);

}

public void showSecond(View v)

{

et=(EditText)findViewByID(R.id.editText);

Intent i=new Intent(this,SecondPage.class);

i.putExtra("str1",et.getText().toString());

StartActivity(i);

}

}

SecondPage.java:

public class SecondPage extends AppCompatActivity{

EditText et;

@override

protected void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_second);

et=(EditText)findViewById(R.id.editText2);

et.setText(getIntent().getStringExtra("str1"));

}

}

public void showThird(View v)

{

et=(EditText)findViewById(R.id.editText2);

Intent i=new Intent(this,ThirdPage.class);

i.putExtra("str2",et.getText().toString());

startActivity(i);

}

public void showFirst(View v)

{

startActivity(new Intent(this,FirstPage.class));

}

}

ThirdPage.java:

public class ThirdPage extends AppCompatActivity{

EditText et;

@Override

protected void onCreate(Bundle savedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_third);

et=(EditText)findViewById(R.id.editText3);

et.setText(getIntent().getStringExtra("str2"));

}

public void showFirst(View v)

{

startActivity(new Intent(this,FirstPage.class));

}

public void showSecond(View v)

{

et=(EditText)findViewById(R.id.editText3);

Intent i=new Intent(this,SecondPage.class);

i.putExtra("str1",et.getText().toString());

startActivity(i);

}

}

In the above program by using intents i moved data from one screen to another screen.