Android FileSearch Gallery(사진선택)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ImageView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/photo"
        android:visibility="gone"
        android:layout_weight="1" />
    
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/text"
        android:visibility="gone"
        android:layout_weight="0"/>
    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/button01"
        android:text="사진 선택"
        android:layout_weight="0" />

</LinearLayout>

package dr.android.file.search;

import android.app.Activity;
import android.os.Bundle;
import java.io.File;
import java.io.IOException;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.provider.MediaStore.Images;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

public class FileSearchbyGallery extends Activity implements OnClickListener {
	ImageView photo;
	Button button01;
	TextView text;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		photo = (ImageView) findViewById(R.id.photo);
		text = (TextView) findViewById(R.id.text);
		button01 = (Button) findViewById(R.id.button01);

		button01.setOnClickListener(this);
	}

	public void onClick(View v) {
		// 갤러리를 호출해서 휴대폰에 저장된 이미지를 읽어들임
		Intent intent = new Intent();
		intent.setAction(Intent.ACTION_GET_CONTENT);
		intent.setType("image/*");// image/jpg, image/png
		startActivityForResult(intent, 0);
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		if (data != null) {
			try {
				Uri uri = data.getData();
				// 이미지 정보 추출 및 표시
				text.setText("========이미지 정보===\n");
				text.append("URI : " + uri.toString() + "\n");
				text.append("Last Path Segment : " + uri.getLastPathSegment()
						+ "\n");
				//컨텐트 프로바이더로 구성된 정보를 DB로 부터 읽어옴
				Cursor c = getContentResolver().query(
						Images.Media.EXTERNAL_CONTENT_URI, null,
						Images.Media._ID + "=?",
						new String[] { uri.getLastPathSegment() }, null);

				if (c.moveToFirst()) {
					//getColumnIndexOrThrow : 컬럼의 인덱스 반환
					String imageFile = c.getString(c
							.getColumnIndexOrThrow(Images.Media.DATA));
					File f = new File(imageFile);
					text.append("원본 이미지 경로 : " + imageFile + "\n");
					text.append("이미지 용량 : " + f.length() + "\n");
				}
				text.setVisibility(View.VISIBLE);

				// ImageView 이미지 보여주기
				//컨텐트 프로바이더로 구성된 정보를 URI를 통해 읽어옴
				Bitmap image = Images.Media
						.getBitmap(getContentResolver(), uri);

				text.append("크기 : " + image.getWidth() + "*"
						+ image.getHeight() + "\n");

				photo.setImageBitmap(image);
				photo.setVisibility(View.VISIBLE);

			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}
}