Android Open Source - LikeYahooWeather Image Utils

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From Project

Back to project page LikeYahooWeather.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.moshdev.likeyahooweather.utils;
//ww w .j  a va 2  s.  c o  m
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Point;
import android.os.Build;
import android.os.Handler;
import android.os.Looper;
import android.util.Log;
import android.view.Display;

public class ImageUtils {
  private static final String TAG = "ImageUtils";

  /**
   * Stores an image on the storage
   * 
   * @param image
   *            the image to store.
   * @param pictureFile
   *            the file in which it must be stored
   */
  public static void storeImage(Bitmap image, File pictureFile) {
    if (pictureFile == null) {
      Log.d(TAG, "Error creating media file, check storage permissions: ");
      return;
    }
    try {
      FileOutputStream fos = new FileOutputStream(pictureFile);
      image.compress(Bitmap.CompressFormat.PNG, 90, fos);
      fos.close();
    } catch (FileNotFoundException e) {
      Log.d(TAG, "File not found: " + e.getMessage());
    } catch (IOException e) {
      Log.d(TAG, "Error accessing file: " + e.getMessage());
    }
  }

  /**
   * Get the screen height.
   * 
   * @param context
   * @return the screen height
   */
  @SuppressWarnings("deprecation")
  @SuppressLint("NewApi")
  public static int getScreenHeight(Activity context) {

    Display display = context.getWindowManager().getDefaultDisplay();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
      Point size = new Point();
      display.getSize(size);
      return size.y;
    }
    return display.getHeight();
  }

  /**
   * Get the screen width.
   * 
   * @param context
   * @return the screen width
   */
  @SuppressWarnings("deprecation")
  @SuppressLint("NewApi")
  public static int getScreenWidth(Activity context) {

    Display display = context.getWindowManager().getDefaultDisplay();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
      Point size = new Point();
      display.getSize(size);
      return size.x;
    }
    return display.getWidth();
  }

  public static void getBlurredImage(final Context context,
      final int bitmapRes, final String nameToSave, final int radius,
      final BlurEffectListener listener) {
    new Thread(new Runnable() {

      @Override
      public void run() {
        File saveFile = new File(context.getFilesDir(), nameToSave);
        Bitmap blurredBitmap = null;
        if (!saveFile.exists()) {
          try {
            Bitmap orgBitmap = BitmapFactory.decodeResource(
                context.getResources(), bitmapRes);
            blurredBitmap = Blur.fastblur(context, orgBitmap,
                radius);
            saveFile.createNewFile();
            ImageUtils.storeImage(blurredBitmap, saveFile);
          } catch (IOException e) {
            e.printStackTrace();
          }

        } else {
          blurredBitmap = BitmapFactory.decodeFile(saveFile
              .getAbsolutePath());
        }
        final Bitmap tempBitmap = blurredBitmap;
        Handler handler = new Handler(Looper.getMainLooper());
        handler.post(new Runnable() {

          @Override
          public void run() {
            listener.onDone(tempBitmap);
          }
        });

      }
    }).start();
  }

  public static interface BlurEffectListener {

    public void onDone(Bitmap bitmap);
  }

  public static String getImageName(int resId) {
    return resId + "_cached.png";
  }
}

Java Source Code List

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