Android

public class gallerie extends ActionBarActivity {
    Integer[] imageIDs = {
            R.drawable.a,
            R.drawable.b
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_gallerie);
        Gallery gallery = (Gallery) findViewById(R.id.gallery1);
        gallery.setAdapter(new ImageAdapter(this));
        gallery.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View v, int position,long id)
            {
                Toast.makeText(getBaseContext(), "pic" + (position + 1) + " selected",
                        Toast.LENGTH_SHORT).show();
                // display the images selected
                ImageView imageView = (ImageView) findViewById(R.id.image1);
                imageView.setImageResource(imageIDs[position]);
            }
        });
    }
 
    public class ImageAdapter extends BaseAdapter {
        private Context context;
        private int itemBackground;
        public ImageAdapter(Context c)
        {
            context = c;
            // sets a grey background; wraps around the images
            TypedArray a =obtainStyledAttributes(R.styleable.MyGallery);
            itemBackground = a.getResourceId(R.styleable.MyGallery_android_galleryItemBackground, 0);
            a.recycle();
        }
        // returns the number of images
        public int getCount() {
            return imageIDs.length;
        }
        // returns the ID of an item
        public Object getItem(int position) {
            return position;
        }
        // returns the ID of an item
        public long getItemId(int position) {
            return position;
        }
        // returns an ImageView view
        public View getView(int position, View convertView, ViewGroup parent) {
            ImageView imageView = new ImageView(context);
            imageView.setImageResource(imageIDs[position]);
            imageView.setLayoutParams(new Gallery.LayoutParams(400, 400));
            imageView.setBackgroundResource(itemBackground);
            return imageView;
        }
    }
 
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_gallerie, menu);
        return true;
    }
 
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
 
        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }
 
        return super.onOptionsItemSelected(item);
    }
}

private GoogleMap mMap; // Might be null if Google Play services APK is not available.
    private LatLng myPosition;
    int TAKE_PHOTO_CODE = 0;
    public static int count=0;
 private void setCamera(Bundle savedInstanceState){
 
//here,we are making a folder named picFolder to store pics taken by the camera using this application
        final String dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/picFolder/";
        File newdir = new File(dir);
        newdir.mkdirs();
 
        Button capture = (Button) findViewById(R.id.btn_photo);
        capture.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
 
                // here,counter will be incremented each time,and the picture taken by camera will be stored as 1.jpg,2.jpg and likewise.
                count++;
                String file = dir + count + ".jpg";
                File newfile = new File(file);
                try {
                    newfile.createNewFile();
                } catch (IOException e) {
                }
 
                Uri outputFileUri = Uri.fromFile(newfile);
 
                Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
 
                startActivityForResult(cameraIntent, TAKE_PHOTO_CODE);
            }
        });
    }
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
 
        if (requestCode == TAKE_PHOTO_CODE && resultCode == RESULT_OK) {
            Log.d("CameraDemo", "Pic saved");
 
 
        }
    }