Passing data to another activity Android

Open class MainActivity, we will pass text, number, array to class second.

Copy to above Override

int number=2018;

String a="Year passed is";

String[] fru = { "Pear","Banana", "Cashew", "Orange", "Water melon", "Peach", "Grape", "Mango", "Plum" };

In button to open new class, add this code.

Intent in=new Intent(getBaseContext(),second.class);

Bundle bun = new Bundle();

bun.putString("text",a );

bun.putInt("num", number);

bun.putStringArray("gi", fru);

in.putExtras(bun);

Let look at keyword we use, in class second we must use the same keyword to receive data.

In class second,  file ac2.xml has three textViews.

<TextView

 android:id="@+id/tv"

 android:layout_width="wrap_content"

 android:layout_height="wrap_content"

 android:layout_gravity="center_horizontal"

 android:layout_marginTop="5dp"       

 android:textColor="#800000"

 android:textSize="20sp" />

<TextView

 android:id="@+id/tv2"

 android:layout_width="wrap_content"

 android:layout_height="wrap_content"

 android:layout_gravity="center_horizontal"

 android:layout_marginTop="5dp"       

 android:textColor="#800000"

 android:textSize="20sp" />

<TextView

 android:id="@+id/tv3"

 android:layout_width="wrap_content"

 android:layout_height="wrap_content"

 android:layout_gravity="center_horizontal"

 android:layout_marginTop="5dp"       

 android:textColor="#800000"

 android:textSize="20sp" />

Find address for textViews.

tv = (TextView) findViewById(R.id.tv);

tv2 = (TextView) findViewById(R.id.tv2);

tv3 = (TextView) findViewById(R.id.tv3);

Declare an array to receive data.

String[] array = new String[9];

Copy to below findViewById.

Intent in = getIntent();

Bundle bun = in.getExtras();       

int number = bun.getInt("num");         

String text = bun.getString("text");

array=bun.getStringArray("gi");

tv.setText(text+"");

tv2.setText(number+"");

tv3.setText("First element is: "+array[0]);

Run project, press button to open class second.