Mobile Application Development Laboratory Experiment-2.b

Here I give full source code in Java and XMl, Sample output with mobile application in .apk format.

EX.NO 2.b     Develop an application that uses Relative Layout manager and Event Listener    

Aim:

  To develop an application that uses Relative Layout manager and Event Listener

Procedure:

Create an XML file with relative layout.

Give separate ID for each and every fields of the XML file.

Create a Java file with event listener for XML file.

Set an actionListener and eventListener commands to specify and perform the operations.

 Using the OnClickListener create a method for the button clicking events used in Java

PROGRAM:

XML CODING:

File Name: activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout android:layout_height="match_parent" android:layout_width="match_parent"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <TextView
        android:id="@+id/tv1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textAlignment="center"
        android:text="Persentage Calculator"
         />
    <TextView
        android:id="@+id/tv2"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv1"
        android:text="Tamil" />
    <EditText
        android:id="@+id/et1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv1"
        android:layout_toRightOf="@+id/tv2"
        />
    <TextView
        android:id="@+id/tv3"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_below="@+id/et1"
        />
    <TextView
        android:id="@+id/tv4"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv3"
        android:text="English" />
    <EditText
        android:id="@+id/et2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv3"
        android:layout_toRightOf="@+id/tv4"
        />
    <TextView
        android:id="@+id/tv5"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_below="@+id/et2"
        />
    <TextView
        android:id="@+id/tv6"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv5"
        android:text="Maths" />
    <EditText
        android:id="@+id/et3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv5"
        android:layout_toRightOf="@+id/tv6"
        />
    <TextView
        android:id="@+id/tv7"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_below="@+id/et3"
        />
    <TextView
        android:id="@+id/tv8"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv7"
        android:text="Science" />
    <EditText
        android:id="@+id/et4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv7"
        android:layout_toRightOf="@+id/tv8"
        />
    <TextView
        android:id="@+id/tv9"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_below="@+id/et4"
        />
    <TextView
        android:id="@+id/tv10"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv9"
        android:text="Social" />
    <EditText
        android:id="@+id/et5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv9"
        android:layout_toRightOf="@+id/tv10"
        />
    <TextView
        android:id="@+id/tv11"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_below="@+id/et5"
        />
    <TextView
        android:id="@+id/tv12"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv11"
        android:text="Total" />
    <EditText
        android:id="@+id/et6"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv11"
        android:layout_toRightOf="@+id/tv12"
        />
    <TextView
        android:id="@+id/tv13"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_below="@+id/et6"
        />
    <TextView
        android:id="@+id/tv14"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv13"
        android:text="Result" />
    <EditText
        android:id="@+id/et7"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv13"
        android:layout_toRightOf="@+id/tv14"
        />
    <TextView
        android:id="@+id/tv15"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_below="@+id/et7"
        />
    <TextView
        android:id="@+id/tv16"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv15"
        android:text="Average" />
    <EditText
        android:id="@+id/et8"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv15"
        android:layout_toRightOf="@+id/tv16"
        />
    <TextView
        android:id="@+id/tv17"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_below="@+id/et8"
        />
    <Button
        android:id="@+id/tv18"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv17"
        android:text="Submit"
        android:onClick="calculate"/>
</RelativeLayout>

JAVA CODING:

File Name: MainActivity.java 

package com.example.expriment2b;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {
    EditText a1,a2,a3,a4,a5,a6,a7,a8;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        a1=findViewById(R.id.et1);
        a2=findViewById(R.id.et2);
        a3=findViewById(R.id.et3);
        a4=findViewById(R.id.et4);
        a5=findViewById(R.id.et5);
        a6=findViewById(R.id.et6);
        a7=findViewById(R.id.et7);
        a8=findViewById(R.id.et8);
    }
    public void calculate(View v)
    {
        int a=Integer.parseInt(a1.getText().toString());
        int b=Integer.parseInt(a2.getText().toString());
        int c=Integer.parseInt(a3.getText().toString());
        int d=Integer.parseInt(a4.getText().toString());
        int e=Integer.parseInt(a5.getText().toString());
        int tot=a+b+c+d+e;
        int avg=tot/5;
        a6.setText(String.valueOf(tot));
        a7.setText(String.valueOf(avg));
        a8.setText(a>40&& b>40&&c>40&&d>40 &&e>40?"Pass":"Fail");
    }

}

OUTPUT:

Result:

Thus a Simple Android Application that uses relative layout manager and event listener developed and executed successfully.

Here I was attach my Mobile Application in .apk format.

Click on blow link: (Download the mobile app run in your mobile)

https://drive.google.com/file/d/1R5mWxvXD8n8ir5slOal8pzN-lC3U54p5/view?usp=sharing

Any quires leave a comment , I will Try to answer soon.