A library to make a mosaic with a preview of multiple images

Preview Image Collection

Preview Image Collection is a library to draw a collage with a number of images like facebook preview album.

Install

Step 1. Add the JitPack repository to your build file
Add it in your root build.gradle at the end of repositories:

allprojects {
  repositories {
    ...
    maven { url 'https://jitpack.io' }
  }
}

Step 2. Add the dependency

dependencies {
  implementation 'com.github.AgnaldoNP:PreviewImageCollection:1.0'
}

Usage

Sample of usage

<pereira.agnaldo.previewimgcol.ImageCollectionView
    android:id="@+id/imageCollectionView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="30dp"
    app:backgroundColor="@color/colorAccent"
    app:baseRowHeight="150dp"
    app:imageMargin="1dp"
    app:pinchToZoom="true"
    app:showExternalBorderMargins="true"
    app:maxImagePerRow="3"
    app:maxRows="2" />

Options

Programmatically

    var collectionView = findViewById(R.id.imageCollectionView)
    
    collectionView.maxRows = ImageCollectionView.NO_ROW_LIMITS
    collectionView.maxRows = 10
    
    collectionView.maxImagePerRow =3
    
    collectionView.imageMargin = 10
    
    collectionView.baseImageHeight = 150
    
    collectionView.mBackgroundColor = Color.WHITE
    
    collectionView.pinchToZoom = true
    
    ollectionView.showExternalBorderMargins = true
    
    val bitmap = ...
    collectionView.addImage(bitmap)
    
    val bitmap2 = ...
    collectionView.addImage(bitmap2, object : ImageCollectionView.OnImageClickListener {
        override fun onClick(bitmap: Bitmap, imageView: ImageView) {
            Toast.makeText(imageView.context, "Test Click on image ...", Toast.LENGTH_LONG).show()
        }
    })
    
    collectionView.setOnMoreClicked(object : ImageCollectionView.OnMoreClickListener {
        override fun onMoreClicked(bitmaps: List<Bitmap>) {
            Toast.makeText(collectionView.context, "on mode clicked ", Toast.LENGTH_LONG)
                .show()
        }
    })

    ImageCollectionView collectionView = (ImageCollectionView) findViewById(R.id.imageCollectionView);

    Bitmap bitmap = ...;
    imageCollectionView.addImage(bitmap);
    
    Bitmap bitmap2 = ...;
    imageCollectionView.addImage(bitmap, (bmp, imageView) -> {
        Toast.makeText(context, "Test Click image 08", Toast.LENGTH_LONG).show();
    });
    
    imageCollectionView.setOnMoreClicked(bitmaps -> {
        Toast.makeText(context, "OnMoreClicked", Toast.LENGTH_LONG).show();
    });

GitHub