To create a gallery control using android studio to display images or photos.
Latest Version Android Studio
Step 1: Open Android Studio and then click on File -> New -> New project.
Step 2: Then type the Application name as GalleryControl and click Next.
Step 3: Then select the Minimum SDK as shown below and click Next.
Step 4: Then select the Empty Activity and click Next. Finally click Finish.
Step 5: Design layout in activity_main.xml.
Step 6: Create a CustomizedGalleryAdapter file.
Step 7: Set the adapter for gallery in MainActivity file.
Step 8: Save and run the application.
/*
Program to print the text “GalleryControl”.
Developed by: Sathiya Narayanan G
Registeration Number : 212221220049
*/
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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="36dp"
app:layout_constraintBottom_toTopOf="@+id/languagesGallery"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.413"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:srcCompat="@tools:sample/avatars" />
<Gallery
android:id="@+id/languagesGallery"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="171dp"
android:layout_marginBottom="204dp"
android:animationDuration="2000"
android:padding="10dp"
android:spacing="5dp"
android:unselectedAlpha="50"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/imageView" />
</androidx.constraintlayout.widget.ConstraintLayout>
CustomizedGalleryAdapter.java:
package com.example.gallerycontrol;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
public class CustomizedGalleryAdapter extends BaseAdapter {
private Context context;
private int[] images;
public CustomizedGalleryAdapter(Context c, int[] images) {
context = c;
this.images = images;
}
// returns the number of images, in our example it is 10
public int getCount() {
return images.length;
}
// returns the Item of an item, i.e. for our example we can get the image
public Object getItem(int position) {
return position;
}
// returns the ID of an item
public long getItemId(int position) {
return position;
}
// returns an ImageView view
public View getView(int position, View convertView, ViewGroup parent) {
// position argument will indicate the location of image
// create a ImageView programmatically
ImageView imageView = new ImageView(context);
// set image in ImageView
imageView.setImageResource(images[position]);
// set ImageView param
imageView.setLayoutParams(new Gallery.LayoutParams(200, 200));
return imageView;
}
}
MainActivity.java:
package com.example.gallerycontrol;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Gallery;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {
Gallery simpleGallery;
CustomizedGalleryAdapter customGalleryAdapter;
ImageView selectedImageView;
int[] images = {R.drawable.f1,R.drawable.f2,R.drawable.f3,R.drawable.f4,R.drawable.f5,R.drawable.f6};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
simpleGallery = (Gallery) findViewById(R.id.languagesGallery);
// get the reference of ImageView
selectedImageView = (ImageView) findViewById(R.id.imageView);
// initialize the adapter
customGalleryAdapter = new CustomizedGalleryAdapter(getApplicationContext(), images);
// set the adapter for gallery
simpleGallery.setAdapter(customGalleryAdapter);
// Let us do item click of gallery and image can be identified by its position
simpleGallery.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// Whichever image is clicked, that is set in the selectedImageView
// position will indicate the location of image
selectedImageView.setImageResource(images[position]);
}
});
}
}
Thus a Simple Android Application to create a gallery control using android studio to display images or photos is developed and executed successfully.