MAD LAB5

Practical 5 (MCA052)

1. Create an application to implement multiple style inside a TextView.

Activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <ScrollView
        android:layout_width="409dp"
        android:layout_height="729dp"
        android:background="@color/black"
        android:padding="25dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.5">

        <TextView
            android:id="@+id/textView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="@color/white"
            android:textSize="30dp"
            android:text="TextView" />

    </ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>


MainActivity.java

package com.example.programone;
import android.os.Bundle;
import android.text.Html;
import android.widget.TextView;
import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
            return insets;
        });
        TextView textView = findViewById(R.id.textView);

        String text = "<b>Bold Text</b><br/>" +
                "H<sub>2</sub>O<br/>" +
                "a<sup>2</sup> + b = c<br/>" +
                "<u>Underline</u><br/>" +
                "<i>Italics</i><br/>" +
                "<big>Big Text</big><br/>" +
                "<small>Small Text</small><br/>" +
                "<strike>Strike</strike><br/>" +
                "<b>Strong</b><br/>" +
                "<i>Emphasis</i><br/>" +
                "<tt>Teletype</tt><br/>" +
                "<i><font face=\"serif\">Creative text</font></i><br/><br/>" +
                "<h1>Heading 1</h1>" +
                "<h2>Heading 2</h2>" +
                "<h3>Heading 3</h3>" +
                "<h4>Heading 4</h4>" +
                "<h5>Heading 5</h5>" +
                "<h6>Heading 6</h6><br/>" +
                "<font color=\"#FFFF00\">This is paragraph</font><br/>" +
                "This is <font color=\"#FF0000\">span tag</font> Working";

        textView.setText(Html.fromHtml(text, Html.FROM_HTML_MODE_LEGACY), TextView.BufferType.SPANNABLE);

    }
}


Output






2. Create an application which show various types of EditText control and Toast the value of eachEditText on click of the Button.

Activity_main.xml

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="16dp">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Personal Information"
        android:textSize="18sp"
        android:textStyle="bold"
        android:layout_gravity="center_horizontal"
        android:paddingBottom="16dp"/>

    <EditText
        android:id="@+id/etName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Your Name"
        android:inputType="textPersonName"
        android:minHeight="48dp"
        android:padding="12dp"/>

    <EditText
        android:id="@+id/etPassword"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Your Password"
        android:inputType="textPassword"
        android:minHeight="48dp"
        android:padding="12dp"/>

    <EditText
        android:id="@+id/etNumericPassword"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Numeric Password [1-5]"
        android:inputType="numberPassword"
        android:minHeight="48dp"
        android:padding="12dp"/>

    <EditText
        android:id="@+id/etEmail"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Your EmailId"
        android:inputType="textEmailAddress"
        android:minHeight="48dp"
        android:padding="12dp"/>

    <EditText
        android:id="@+id/etPhoneNo"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Your PhoneNo"
        android:inputType="phone"
        android:minHeight="48dp"
        android:padding="12dp"/>

    <EditText
        android:id="@+id/etAddress"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Your Address"
        android:inputType="textPostalAddress"
        android:minHeight="48dp"
        android:padding="12dp"/>

    <EditText
        android:id="@+id/etBday"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Your Bday"
        android:inputType="date"
        android:minHeight="48dp"
        android:padding="12dp"/>

    <EditText
        android:id="@+id/etMonthOfBday"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Select Month of Bday"
        android:inputType="number"
        android:minHeight="48dp"
        android:padding="12dp"/>

    <EditText
        android:id="@+id/etHobbies"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Select Your Hobbies"
        android:inputType="text"
        android:minHeight="48dp"
        android:padding="12dp"/>

    <Button
        android:id="@+id/btnSubmit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="SUBMIT"
        android:minHeight="48dp"
        android:padding="12dp"
        android:layout_marginTop="16dp"
        android:layout_marginBottom="16dp"/>
</LinearLayout>


MainActivity.java

package com.example.programone;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
    private EditText etName, etPassword, etNumericPassword, etEmail, etPhoneNo, etAddress, etBday, etMonthOfBday, etHobbies;
    private Button btnSubmit;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        etName = findViewById(R.id.etName);
        etPassword = findViewById(R.id.etPassword);
        etNumericPassword = findViewById(R.id.etNumericPassword);
        etEmail = findViewById(R.id.etEmail);
        etPhoneNo = findViewById(R.id.etPhoneNo);
        etAddress = findViewById(R.id.etAddress);
        etBday = findViewById(R.id.etBday);
        etMonthOfBday = findViewById(R.id.etMonthOfBday);
        etHobbies = findViewById(R.id.etHobbies);
        btnSubmit = findViewById(R.id.btnSubmit);
        btnSubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String name = etName.getText().toString();
                String password = etPassword.getText().toString();
                String numericPassword = etNumericPassword.getText().toString();
                String email = etEmail.getText().toString();
                String phoneNo = etPhoneNo.getText().toString();
                String address = etAddress.getText().toString();
                String bday = etBday.getText().toString();
                String monthOfBday = etMonthOfBday.getText().toString();
                String hobbies = etHobbies.getText().toString();
                String message = "Name: " + name + "\n" +
                        "Password: " + password + "\n" +
                        "Number Password: " + numericPassword + "\n" +
                        "Email: " + email + "\n" +
                        "PhoneNo: " + phoneNo + "\n" +
                        "Address: " + address + "\n" +
                        "Bday: " + bday + "\n" +
                        "BDay Month: " + monthOfBday + "\n" +
                        "Hobbies: " + hobbies;
                Toast.makeText(MainActivity.this, message, Toast.LENGTH_LONG).show();
            }        });    }}

Output






3. Write an application that draws basic graphical primitives on the screen.

Activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/imgView"
        android:layout_constraintBottom_toBottomOf="parent"
        android:layout_constraintEnd_toEndOf="parent"
        android:layout_constraintStart_toStartOf="parent"
        android:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>


MainActivity.java

package com.example.three;

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.widget.ImageView;
import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        Bitmap bitmap =Bitmap.createBitmap(720,1280,Bitmap.Config.ARGB_8888);
        ImageView imageView;
        imageView = findViewById(R.id.imgView);
        imageView.setBackground(new BitmapDrawable(bitmap));
        Canvas canvas = new Canvas(bitmap);
        Paint paint = new Paint();
        paint.setColor(Color.BLUE);
        paint.setTextSize(25);
        canvas.drawText("Rectangle",420,150,paint);
        canvas.drawRect(400,200,650,700,paint);
        canvas.drawText("Circle",100,150,paint);
        canvas.drawCircle(180,300,100,paint);
        canvas.drawText("Square",100,800,paint);
        canvas.drawRect(80,850,330,1100,paint);
        canvas.drawText("Tine",80,800,paint);
        canvas.drawLine(530,830,530,1100,paint);
    }
}


Output







4. Create an application that uses GUI components, Font and Color. In this application you have one textview control to display Hello World!, two buttons. One button is change font size and second button changes color. [use import android.graphics.Color, Use 6 colors and default font size to 30. With each click the font size should increase by 5 upto 50, then reset to 30.]

Activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:padding="16dp"
    tools:context=".MainActivity">
    <TextView
        android:id="@+id/txtHello"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="104dp"
        android:text="Hello World!"
        android:textColor="#959694"
        android:textSize="45dp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="@+id/btnFontSize"
        app:layout_constraintHorizontal_bias="0.337"
        app:layout_constraintStart_toStartOf="@+id/btnFontSize"
        app:layout_constraintTop_toTopOf="parent" />
    <Button
        android:id="@+id/btnFontSize"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="268dp"
        android:layout_marginEnd="24dp"
        android:text="CHANGE FONT SIZE"
        android:textSize="33dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
    <Button
        android:id="@+id/btnChangeColor"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="67dp"
        android:text="CHANGE COLOR"
        android:textSize="33dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="@+id/btnFontSize"
        app:layout_constraintHorizontal_bias="0.285"
        app:layout_constraintStart_toStartOf="@+id/btnFontSize"
        app:layout_constraintTop_toBottomOf="@+id/btnFontSize"
        app:layout_constraintVertical_bias="0.0" />
</androidx.constraintlayout.widget.ConstraintLayout>


MainActivity.java

package com.example.three;

import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
public class MainActivity extends AppCompatActivity {
    TextView t1;
    Button b1, b2;
    private int currentFontSize = 30;
    private int[] colors = {Color.BLACK, Color.RED, Color.MAGENTA,
            Color.CYAN, Color.BLUE, Color.GREEN};
    private int currentColorIndex = 0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        t1 = findViewById(R.id.txtHello);
        b1 = findViewById(R.id.btnFontSize);
        b2 = findViewById(R.id.btnChangeColor);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                currentFontSize += 5;
                if (currentFontSize > 50) {
                    currentFontSize = 30;
                }
                t1.setTextSize(currentFontSize);
            }
        });
        b2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                currentColorIndex++;
                if (currentColorIndex >= colors.length) {
                    currentColorIndex = 0;
                }
                t1.setTextColor(colors[currentColorIndex]);
            }
        });
    }
}


Output







5. Create an application to implement customize toast

Activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    tools:context=".MainActivity">
    <Button
        android:id="@+id/showToastButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Show Custom Toast"
        android:layout_marginBottom="500dp"
        android:textSize="50dp"
        android:textStyle="italic"
        android:backgroundTint="@android:color/holo_purple"
        android:textColor="@android:color/white" />
</LinearLayout>


MainActivity.java

package com.example.three;

import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
public class MainActivity extends AppCompatActivity {
    Button b1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        b1 = findViewById(R.id.showToastButton);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LayoutInflater inflater = getLayoutInflater();
                View layout =
                        inflater.inflate(R.layout.activity_toast_custom,findViewById(R.id.main));
                TextView text =
                        layout.findViewById(R.id.toast_text);
                text.setText("This is a custom toast");
                Toast toast = new Toast(getApplicationContext());
                toast.setDuration(Toast.LENGTH_LONG);
                toast.setView(layout);
// toast.setGravity(Gravity.TOP,0,0);
                toast.show();
            }
        });
    }
}


Activity_toast_custom.xml

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/custom_toast_container"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:padding="8dp"
    android:background="@android:color/holo_red_dark">
    <ImageView
        android:id="@+id/toast_image"
        android:layout_width="80dp"
        android:layout_height="80dp"
        android:src="@drawable/sample_image"
        android:layout_marginEnd="8dp"
        android:contentDescription="Toast Image" />
    <TextView
        android:id="@+id/toast_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="This is a custom toast"
        android:textColor="@android:color/white"
        android:textSize="16sp" />
</LinearLayout>


Toast_custom.java

package com.example.three;
import android.os.Bundle;
import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
public class toast_custom extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_toast_custom);
    }
}


Output