Class 7 (Visibility )

 Visivility

<?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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity"
    android:background="#AACFEC"
    android:layout_margin="20sp"
    >

    <ImageView
        android:id="@+id/image"
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:src="@drawable/tshart"
        android:visibility="invisible"
        />


    <Button
        android:id="@+id/bShow"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Show Image"
        />

    <Button
        android:id="@+id/bGone"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Go Away"
        />


</LinearLayout>

Java

package com.rakibshah.testblog;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    ImageView image;
    Button bShow,bGone;

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

        image = findViewById(R.id.image);
        bShow = findViewById(R.id.bShow);
        bGone = findViewById(R.id.bGone);



        bShow.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                image.setVisibility(View.VISIBLE);

            }
        });

        bGone.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                image.setVisibility(View.GONE);

            }
        });


    }
}