Media Store Gallery : Gallery « UI « Android

1. Android
2. UI
3. Gallery

Media Store Gallery

   
package app.test;

import android.app.Activity;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.provider.MediaStore;
import android.provider.MediaStore.Images.Media;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.TextView;

public class Test extends Activity {
  public final static int DISPLAYWIDTH = 200;
  public final static int DISPLAYHEIGHT = 200;
  TextView titleTextView;
  ImageButton imageButton;

  Cursor cursor;
  Bitmap bmp;
  String imageFilePath;
  int fileColumn;
  int titleColumn;
  int displayColumn;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    titleTextView = (TextView) this.findViewById(R.id.TitleTextView);
    imageButton = (ImageButton) this.findViewById(R.id.ImageButton);

    String[] columns = { Media.DATA, Media._ID, Media.TITLE,
        Media.DISPLAY_NAME };
    cursor = managedQuery(Media.EXTERNAL_CONTENT_URI, columns, null, null,
        null);

    fileColumn = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    titleColumn = cursor
        .getColumnIndexOrThrow(MediaStore.Images.Media.TITLE);
    displayColumn = cursor
        .getColumnIndexOrThrow(MediaStore.Images.Media.DISPLAY_NAME);

    if (cursor.moveToFirst()) {
      titleTextView.setText(cursor.getString(displayColumn));
      imageFilePath = cursor.getString(fileColumn);
      bmp = getBitmap(imageFilePath);
      imageButton.setImageBitmap(bmp);
    }

    imageButton.setOnClickListener(new OnClickListener() {
      public void onClick(View v) {
        if (cursor.moveToNext()) {
          titleTextView.setText(cursor.getString(displayColumn));
          imageFilePath = cursor.getString(fileColumn);
          bmp = getBitmap(imageFilePath);
          imageButton.setImageBitmap(bmp);
        }
      }
    });
  }

  private Bitmap getBitmap(String imageFilePath) {
    BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options();
    bmpFactoryOptions.inJustDecodeBounds = true;
    Bitmap bmp = BitmapFactory.decodeFile(imageFilePath, bmpFactoryOptions);
    bmpFactoryOptions.inSampleSize = 2;
    bmpFactoryOptions.inJustDecodeBounds = false;
    bmp = BitmapFactory.decodeFile(imageFilePath, bmpFactoryOptions);
    return bmp;
  }
}
//layout/main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<ImageButton android:layout_width="wrap_content" 
             android:layout_height="wrap_content" 
             android:id="@+id/ImageButton"></ImageButton>
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:id="@+id/TitleTextView"
    android:text="Image Title"/>
</LinearLayout>

   
    
    
  

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