Android Horizontal scrolling image gallery

create LinearLayout inside HorizontalScrollView,then create an imageView dynamically and add that imageview to linearLayout.

Example code:

<HorizontalScrollView android:id="@+id/horizontal_scroll" android:layout_width="match_parent" android:layout_height="wrap_content" > <LinearLayout android:id="@+id/linear" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" > </LinearLayout> </HorizontalScrollView> 

In onCreate() method,get the id of linearLayout from the xml file and add dynamically created ImageView to linearlayout:

 LinearLayout layout = (LinearLayout) findViewById(R.id.linear); for (int i = 0; i < 10; i++) { ImageView imageView = new ImageView(this); imageView.setId(i); imageView.setPadding(2, 2, 2, 2); imageView.setImageBitmap(BitmapFactory.decodeResource( getResources(), R.drawable.ic_launcher)); imageView.setScaleType(ScaleType.FIT_XY); layout.addView(imageView); } 

Go with HorizontalScrollView instead of ListView or GirdView http://developer.android.com/reference/android/widget/HorizontalScrollView.html

TwoWayView worked good for me. https://github.com/lucasr/twoway-view/

HorizontalScrollView Documentation

To use HorizontalScrollView you should only have one child inside it. The way I have used it before with images like what you are doing is by creating a TableLayout and adding the images to the TableRows. The TableLayout can have many rows or just 1 row and many columns.

You can add ImageViews (or any other view) to each row and then you finally add the TableRow to the TableLayout. Once the TableLayout is made, all you need to do is:

 //createTable method is where you would loop through the images to add TableLayout table = createTable(rowCount, columnCount); HorizontalScrollView hozView = new HorizontalScrollView(this); hozView.addView(table); setContentView(hozView); 

Since we no longer have the Gallery widget a bit of DIY nouse is required. You can create a horizontally scrolling thumbnail strip with a HorizontalScrollView and a nested LinearLayout, and dynamically add images to it from within your activity:

<HorizontalScrollView android:layout_width="match_parent" android:layout_height="72dp" android:layout_gravity="bottom" android:background="@color/black"> <LinearLayout android:id="@+id/thumbnails" android:layout_width="wrap_content" android:layout_height="match_parent" android:gravity="center_vertical" android:orientation="horizontal" android:paddingTop="2dp"/> </HorizontalScrollView> 

The code below is taken from this tutorial: http://sourcey.com/android-horizontally-scrolling-pan-scan-and-zoom-image-gallery/ The GalleryActivity implements what you're looking for, and also expands on your request by adding a ViewPager element for showing the selected image, and a SubsamplingScaleImageView so you can pan, scan and zoom the selected image:

package com.sourcey.imagegallerydemo; import android.content.Context; import android.graphics.Bitmap; import android.os.Bundle; import android.support.v4.view.PagerAdapter; import android.support.v7.app.AppCompatActivity; import android.support.v4.view.ViewPager; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.LinearLayout; import com.bumptech.glide.Glide; import com.bumptech.glide.request.animation.GlideAnimation; import com.bumptech.glide.request.target.SimpleTarget; import com.davemorrissey.labs.subscaleview.ImageSource; import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView; import junit.framework.Assert; import java.util.ArrayList; import butterknife.ButterKnife; import butterknife.InjectView; public class GalleryActivity extends AppCompatActivity { public static final String TAG = "GalleryActivity"; public static final String EXTRA_NAME = "images"; private ArrayList<String> _images; private GalleryPagerAdapter _adapter; @InjectView(R.id.pager) ViewPager _pager; @InjectView(R.id.thumbnails) LinearLayout _thumbnails; @InjectView(R.id.btn_close) ImageButton _closeButton; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_gallery); ButterKnife.inject(this); _images = (ArrayList<String>) getIntent().getSerializableExtra(EXTRA_NAME); Assert.assertNotNull(_images); _adapter = new GalleryPagerAdapter(this); _pager.setAdapter(_adapter); _pager.setOffscreenPageLimit(6); // how many images to load into memory _closeButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Log.d(TAG, "Close clicked"); finish(); } }); } class GalleryPagerAdapter extends PagerAdapter { Context _context; LayoutInflater _inflater; public GalleryPagerAdapter(Context context) { _context = context; _inflater = (LayoutInflater) _context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public int getCount() { return _images.size(); } @Override public boolean isViewFromObject(View view, Object object) { return view == ((LinearLayout) object); } @Override public Object instantiateItem(ViewGroup container, final int position) { View itemView = _inflater.inflate(R.layout.pager_gallery_item, container, false); container.addView(itemView); // Get the border size to show around each image int borderSize = _thumbnails.getPaddingTop(); // Get the size of the actual thumbnail image int thumbnailSize = ((FrameLayout.LayoutParams) _pager.getLayoutParams()).bottomMargin - (borderSize*2); // Set the thumbnail layout parameters. Adjust as required LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(thumbnailSize, thumbnailSize); params.setMargins(0, 0, borderSize, 0); // You could also set like so to remove borders //ViewGroup.LayoutParams params = new ViewGroup.LayoutParams( // ViewGroup.LayoutParams.WRAP_CONTENT, // ViewGroup.LayoutParams.WRAP_CONTENT); final ImageView thumbView = new ImageView(_context); thumbView.setScaleType(ImageView.ScaleType.CENTER_CROP); thumbView.setLayoutParams(params); thumbView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Log.d(TAG, "Thumbnail clicked"); // Set the pager position when thumbnail clicked _pager.setCurrentItem(position); } }); _thumbnails.addView(thumbView); final SubsamplingScaleImageView imageView = (SubsamplingScaleImageView) itemView.findViewById(R.id.image); // Asynchronously load the image and set the thumbnail and pager view Glide.with(_context) .load(_images.get(position)) .asBitmap() .into(new SimpleTarget<Bitmap>() { @Override public void onResourceReady(Bitmap bitmap, GlideAnimation anim) { imageView.setImage(ImageSource.bitmap(bitmap)); thumbView.setImageBitmap(bitmap); } }); return itemView; } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((LinearLayout) object); } } } 

The full Android project is up on Github: https://github.com/sourcey/imagegallerydemo

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