rotate Image - Android android.graphics

Android examples for android.graphics:Image Operation

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Description

rotate Image

Demo Code

import java.io.FileNotFoundException;
import java.io.FileOutputStream;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;

public class Main {

  /**//from  www  . ja  v  a2  s .  com
   * This method is use for rotation of image.
   *
   * @param mediaFile
   *
   **/
  public static void rotateImage(String mediaFile, int rotation) {
    if (rotation != 0) {
      BitmapFactory.Options options = new BitmapFactory.Options();
      options.inSampleSize = 2;
      Bitmap bitmap = BitmapFactory.decodeFile(mediaFile, options);
      if (bitmap != null) {

        Matrix matrix = new Matrix();
        matrix.setRotate(rotation);
        bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
        // bitmap.recycle();
        try {
          final FileOutputStream fos = new FileOutputStream(mediaFile);
          bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
        } catch (FileNotFoundException e) {
          e.printStackTrace();
        }
      }
    }
  }

}

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