ChoseImageActivity.java

package com.example1.locationapp;

import java.io.File;

import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import com.example1.locationapp.R;
import com.kbeanie.imagechooser.api.ChooserType;
import com.kbeanie.imagechooser.api.ChosenImage;
import com.kbeanie.imagechooser.api.ImageChooserListener;
import com.kbeanie.imagechooser.api.ImageChooserManager;

/**
 * In this ChoseImageActivity there are two main things to do 
 * 1.take Image
 *    want you want add image into the app you can choose take the image then it will give the camron then you can take by yourself.
 * 2.choose Image
 *    you also can choose the image which saved locally. when you using that it will list all the image that what we have.
 * 
 * @author zuo2
 */
public class ChoseImageActivity extends Activity implements
		ImageChooserListener {

	private ImageView imageViewThumbnail;
	private ImageView imageViewThumbSmall;
	private TextView textViewFile;
	private ImageChooserManager imageChooserManager;
	private ProgressBar progressBar;
	private String filePath2;
	private String filePath;
	private int chooserType;

	
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_chose_image);
		ActionBar bar = getActionBar();
		bar.hide();
		Button buttonTakePicture = (Button) findViewById(R.id.buttonTakePicture);
		buttonTakePicture.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				takePicture();
			}
		});
		Button buttonChooseImage = (Button) findViewById(R.id.buttonChooseImage);
		buttonChooseImage.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				chooseImage();
			}
		});

		imageViewThumbnail = (ImageView) findViewById(R.id.imageViewThumb);
		imageViewThumbSmall = (ImageView) findViewById(R.id.imageViewThumbSmall);
		textViewFile = (TextView) findViewById(R.id.textViewFile);
		progressBar = (ProgressBar) findViewById(R.id.progressBar);
		progressBar.setVisibility(View.GONE);

	}
	
	
	
	/**
	 * user can use this method to choose the image which already saved locally.
	 */
	private void chooseImage() {
		chooserType = ChooserType.REQUEST_PICK_PICTURE;
		imageChooserManager = new ImageChooserManager(this,
				ChooserType.REQUEST_PICK_PICTURE, "myfolder", true);
		imageChooserManager.setImageChooserListener(this);
		try {
			progressBar.setVisibility(View.VISIBLE);
			filePath = imageChooserManager.choose();
		} catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	
	
	/**
	 * this method for user taking the photo by user.
	 */
	private void takePicture() {
		chooserType = ChooserType.REQUEST_CAPTURE_PICTURE;
		imageChooserManager = new ImageChooserManager(this,
				ChooserType.REQUEST_CAPTURE_PICTURE, "myfolder", true);
		imageChooserManager.setImageChooserListener(this);
		try {
			progressBar.setVisibility(View.VISIBLE);
			filePath = imageChooserManager.choose();

		} catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}


	
	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (resultCode == RESULT_OK
				&& (requestCode == ChooserType.REQUEST_PICK_PICTURE || requestCode == ChooserType.REQUEST_CAPTURE_PICTURE)) {
			if (imageChooserManager == null) {
				reinitializeImageChooser();
			}
			imageChooserManager.submit(requestCode, data);
		} else {
			progressBar.setVisibility(View.GONE);
		}
	}

	
	
	/**
	 * this method is for the Image what user choose to use.
	 * @param image -- the image what user want to use.
	 */
	@Override
	public void onImageChosen(final ChosenImage image) {
		runOnUiThread(new Runnable() {

			@Override
			public void run() {
				progressBar.setVisibility(View.GONE);
				if (image != null) {
					textViewFile.setText(image.getFilePathOriginal());
					filePath = image.getFilePathOriginal();
					filePath2 = filePath;
					imageViewThumbnail.setImageURI(Uri.parse(new File(image
							.getFileThumbnail()).toString()));
					imageViewThumbSmall.setImageURI(Uri.parse(new File(image
							.getFileThumbnailSmall()).toString()));
				}
			}
		});
	}

	

	/**
	 * to return the the error information to let user know.
	 * @param reason -- the string tell to let user understand what's with it.
	 */
	@Override
	public void onError(final String reason) {
		runOnUiThread(new Runnable() {

			@Override
			public void run() {
				progressBar.setVisibility(View.GONE);
				Toast.makeText(ChoseImageActivity.this, reason,
						Toast.LENGTH_LONG).show();
			}
		});
	}
		
	

	/**
	 * this method is for when you finish choose you image then you click 
	 * back button then the app will know that which image you have chosen.
	 */
	@Override
	public void onBackPressed() {

		Intent intent = new Intent();
		intent.putExtra("image", filePath);
		intent.putExtra("choseimage", filePath2);
		setResult(RESULT_OK, intent);
		finish();
		super.onBackPressed();

	}
	

	
	@Override
	public void onDestroy() {

		super.onDestroy();
	}
	
	

	/**
	 *Should be called if for some reason the ImageChooserManager is null Due
	 *to destroying of activity for low memory situations
	 */
	private void reinitializeImageChooser() {
		imageChooserManager = new ImageChooserManager(this, chooserType,
				"myfolder", true);
		imageChooserManager.setImageChooserListener(this);
		imageChooserManager.reinitialize(filePath);
	}

	

	@Override
	protected void onSaveInstanceState(Bundle outState) {
		outState.putInt("chooser_type", chooserType);
		outState.putString("media_path", filePath);
		super.onSaveInstanceState(outState);
	}

	

	@Override
	protected void onRestoreInstanceState(Bundle savedInstanceState) {
		if (savedInstanceState != null) {
			if (savedInstanceState.containsKey("chooser_type")) {
				chooserType = savedInstanceState.getInt("chooser_type");
			}

			if (savedInstanceState.containsKey("media_path")) {
				filePath = savedInstanceState.getString("media_path");
			}
		}
		super.onRestoreInstanceState(savedInstanceState);
	}
}