How to make Login form in Android and Toast message

You can Copy this code for more details watch full video for instructions.

Layout.xml :-
------------------------------------------
 <LinearLayout
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:orientation="vertical">
       <EditText
           android:id="@+id/username"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:ems="10"
           android:inputType="textPersonName"
           android:hint="Enter user name"
           tools:layout_editor_absoluteX="54dp"
           tools:layout_editor_absoluteY="22dp" />
       <EditText
           android:id="@+id/password"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:ems="10"
           android:hint="Enter Password"
           android:inputType="textPassword"
           tools:layout_editor_absoluteX="3dp"
           tools:layout_editor_absoluteY="49dp" />

       <Button
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="Submit"
           android:onClick="checkData"
           android:id="@+id/btn_submit"/>

   </LinearLayout>



MainActivity.java
-----------------------------------------------------------
public class MainActivity extends AppCompatActivity {

    EditText username;
    EditText password;

    //String varible to store data
    String str_username = "";
    String str_password = "";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        username = (EditText)findViewById(R.id.username);
        password = (EditText)findViewById(R.id.password);


    }

    public void checkData(View view)
    {
        str_username = username.getText().toString();
        str_password = password.getText().toString();

        if(str_username.equalsIgnoreCase("Raj") && str_password.equalsIgnoreCase("raj@123"))
        {
            Toast.makeText(getApplicationContext(),"Log in Sucess",Toast.LENGTH_LONG).show();
        }
        else
        {
            Toast.makeText(getApplicationContext(),"Log in Fail",Toast.LENGTH_LONG).show();

        }

    }
}

Enjoy Coding.