selected image not showing in imageview

i set breakpoint but could not get the problem.. Could you please sort this out..I need to submit my project tonight..

MY COde:

Button buttonLoadImage = (Button) findViewById(R.id.button4);

buttonLoadImage.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v)

{

Intent i = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

startActivityForResult(i, Selected_image);

}

});

}

protected void onActivityResult(int requestCode, int resultCode , Intent data) {

super.onActivityResult(requestCode, resultCode, data);

if (requestCode == Selected_image && resultCode == RESULT_OK && null != data) {

Uri selectedImage = data.getData();

String[] filePathColumn = { MediaStore.Images.Media.DATA };

Cursor cursor = getContentResolver().query(selectedImage,

filePathColumn, null, null, null);

cursor.moveToFirst();

int columnIndex = cursor.getColumnIndex(filePathColumn[0]);

String picturePath = cursor.getString(columnIndex);

cursor.close();

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

imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));

}