ImagePickerActivity

import java.io.FileNotFoundException;
import java.io.InputStream;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;

public class ImagePickerActivity extends Activity {

         private final int SELECT_PHOTO = 1;
	private ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_image_picker);

        imageView = (ImageView)findViewById(R.id.imageView);

        Button pickImage = (Button) findViewById(R.id.btn_pick);
        pickImage.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View view) {				
				Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
				photoPickerIntent.setType("image/*");
				startActivityForResult(photoPickerIntent, SELECT_PHOTO);
			}
		});
    }






    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) { 
        super.onActivityResult(requestCode, resultCode, imageReturnedIntent); 

        switch(requestCode) { 
        case SELECT_PHOTO:
            if(resultCode == RESULT_OK){
				try {
					final Uri imageUri = imageReturnedIntent.getData();
					final InputStream imageStream = getContentResolver().openInputStream(imageUri);
					final Bitmap selectedImage = BitmapFactory.decodeStream(imageStream);
					imageView.setImageBitmap(selectedImage);
				} catch (FileNotFoundException e) {
					e.printStackTrace();
				}

            }
        }
    }


}