IjoomerPhotoGalaryActivity.java

package com.ijoomer.common.classes;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;

import com.ijoomer.customviews.IjoomerButton;
import com.ijoomer.customviews.IjoomerCheckBox;
import com.ijoomer.src.R;

/**
 * This Class Contains All Method Related To IjoomerPhotoGalaryActivity.
 * 
 * @author tasol
 * 
 */
public class IjoomerPhotoGalaryActivity extends Activity {

	private ImageAdapter imageAdapter;

	private String[] arrPath;
	private boolean[] thumbnailsselection;
	private int ids[];
	private int count;

	
	/**
	 * Overrides methods
	 */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.ijoomer_photo_gallery);

		final String[] columns = { MediaStore.Images.Media.DATA, MediaStore.Images.Media._ID };
		final String orderBy = MediaStore.Images.Media._ID;
		@SuppressWarnings("deprecation")
		Cursor imagecursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, columns, null, null, orderBy);
		int image_column_index = imagecursor.getColumnIndex(MediaStore.Images.Media._ID);
		this.count = imagecursor.getCount();
		this.arrPath = new String[this.count];
		ids = new int[count];
		this.thumbnailsselection = new boolean[this.count];
		for (int i = 0; i < this.count; i++) {
			imagecursor.moveToPosition(i);
			ids[i] = imagecursor.getInt(image_column_index);
			int dataColumnIndex = imagecursor.getColumnIndex(MediaStore.Images.Media.DATA);
			arrPath[i] = imagecursor.getString(dataColumnIndex);
		}
		GridView imagegrid = (GridView) findViewById(R.id.PhoneImageGrid);
		imageAdapter = new ImageAdapter();
		imagegrid.setAdapter(imageAdapter);
		imagecursor.close();

		final IjoomerButton selectBtn = (IjoomerButton) findViewById(R.id.selectBtn);
		selectBtn.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				final int len = thumbnailsselection.length;
				int cnt = 0;
				String selectImages = "";
				for (int i = 0; i < len; i++) {
					if (thumbnailsselection[i]) {
						cnt++;
						selectImages = selectImages + arrPath[i] + "|";
					}
				}
				if (cnt == 0) {
					Toast.makeText(getApplicationContext(), "Please select at least one image", Toast.LENGTH_LONG).show();
				} else {

					Log.d("SelectedImages", selectImages);
					Intent i = new Intent();
					i.putExtra("data", selectImages);
					setResult(Activity.RESULT_OK, i);
					finish();
				}
			}
		});
	}
	@Override
	public void onBackPressed() {
		setResult(Activity.RESULT_CANCELED);
		super.onBackPressed();

	}
	
	/**
	 * Class method
	 */
	
	/**
	 * This method used to set bitmap.
	 * @param iv represented ImageView 
	 * @param id represented id
	 */
	
	private void setBitmap(final ImageView iv, final int id) {

		new AsyncTask<Void, Void, Bitmap>() {

			@Override
			protected Bitmap doInBackground(Void... params) {

				return MediaStore.Images.Thumbnails.getThumbnail(getApplicationContext().getContentResolver(), id, MediaStore.Images.Thumbnails.MICRO_KIND, null);
			}

			@Override
			protected void onPostExecute(Bitmap result) {
				super.onPostExecute(result);
				iv.setImageBitmap(result);
			}
		}.execute();
	}

	
	/**
	 * List adapter
	 * @author tasol
	 */
	
	public class ImageAdapter extends BaseAdapter {
		private LayoutInflater mInflater;

		public ImageAdapter() {
			mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		}

		public int getCount() {
			return count;
		}

		public Object getItem(int position) {
			return position;
		}

		public long getItemId(int position) {
			return position;
		}

		public View getView(int position, View convertView, ViewGroup parent) {
			final ViewHolder holder;
			if (convertView == null) {
				holder = new ViewHolder();
				convertView = mInflater.inflate(R.layout.ijoomer_photo_gallery_item, null);
				holder.imageview = (ImageView) convertView.findViewById(R.id.thumbImage);
				holder.IjoomerCheckBox = (IjoomerCheckBox) convertView.findViewById(R.id.itemCheckBox);

				convertView.setTag(holder);
			} else {
				holder = (ViewHolder) convertView.getTag();
			}
			holder.IjoomerCheckBox.setId(position);
			holder.imageview.setId(position);
			holder.IjoomerCheckBox.setOnClickListener(new OnClickListener() {

				public void onClick(View v) {
					IjoomerCheckBox cb = (IjoomerCheckBox) v;
					int id = cb.getId();
					if (thumbnailsselection[id]) {
						cb.setChecked(false);
						thumbnailsselection[id] = false;
					} else {
						cb.setChecked(true);
						thumbnailsselection[id] = true;
					}
				}
			});
			holder.imageview.setOnClickListener(new OnClickListener() {

				public void onClick(View v) {
					int id = holder.IjoomerCheckBox.getId();
					if (thumbnailsselection[id]) {
						holder.IjoomerCheckBox.setChecked(false);
						thumbnailsselection[id] = false;
					} else {
						holder.IjoomerCheckBox.setChecked(true);
						thumbnailsselection[id] = true;
					}
				}
			});
			try {
				setBitmap(holder.imageview, ids[position]);
			} catch (Throwable e) {
			}
			holder.IjoomerCheckBox.setChecked(thumbnailsselection[position]);
			holder.id = position;
			return convertView;
		}
	}

	
	/**
	 * Inner class
	 * @author tasol
	 */
	class ViewHolder {
		ImageView imageview;
		IjoomerCheckBox IjoomerCheckBox;
		int id;
	}

}