Java Code Examples for android.graphics.Bitmap#getByteCount()

/**
 * Get the size in bytes of a bitmap in a BitmapDrawable. Note that from Android 4.4 (KitKat) onward this returns the allocated memory size of the bitmap which can be larger than the actual bitmap data byte count (in the case it was re-used).
 *
 * @param value
 * @return size in bytes
 */
@TargetApi(19) // @TargetApi(VERSION_CODES.KITKAT)
public static long getBitmapSize(BitmapDrawable value) {
    if (null == value) {
        return 0;
    }
    Bitmap bitmap = value.getBitmap();

    // From KitKat onward use getAllocationByteCount() as allocated bytes can potentially be
    // larger than bitmap byte count.
    if (Version.hasKitKat()) {
        return bitmap.getAllocationByteCount();
    }

    if (Version.hasHoneycombMR1()) {
        return bitmap.getByteCount();
    }

    // Pre HC-MR1
    return bitmap.getRowBytes() * bitmap.getHeight();
}
 

/**
 * Get the size in bytes of a bitmap in a BitmapDrawable. Note that from Android 4.4 (KitKat)
 * onward this returns the allocated memory size of the bitmap which can be larger than the
 * actual bitmap data byte count (in the case it was re-used).
 *
 * @param value
 * @return size in bytes
 */
@TargetApi(VERSION_CODES.KITKAT)
public static int getBitmapSize(BitmapDrawable value) {
    Bitmap bitmap = value.getBitmap();

    // From KitKat onward use getAllocationByteCount() as allocated bytes can potentially be
    // larger than bitmap byte count.
    if (Malevich.Utils.hasKitKat()) {
        return bitmap.getAllocationByteCount();
    }

    if (Malevich.Utils.hasHoneycombMR1()) {
        return bitmap.getByteCount();
    }

    // Pre HC-MR1
    return bitmap.getRowBytes() * bitmap.getHeight();
}
 

/**
 * Get the size in bytes of a bitmap in a BitmapDrawable. Note that from Android 4.4 (KitKat)
 * onward this returns the allocated memory size of the bitmap which can be larger than the
 * actual bitmap data byte count (in the case it was re-used).
 *
 * @param bitmap
 * @return size in bytes
 */
@TargetApi(VERSION_CODES.KITKAT)
public static int getBitmapSize(Bitmap bitmap) {
    // From KitKat onward use getAllocationByteCount() as allocated bytes can potentially be
    // larger than bitmap byte count.
    if (Utils.hasKitKat()) {
        return bitmap.getAllocationByteCount();
    }

    if (Utils.hasHoneycombMR1()) {
        return bitmap.getByteCount();
    }

    // Pre HC-MR1
    return bitmap.getRowBytes() * bitmap.getHeight();
}
 

/**
 * Get the size in bytes of a bitmap in a BitmapDrawable. Note that from Android 4.4 (KitKat)
 * onward this returns the allocated memory size of the bitmap which can be larger than the
 * actual bitmap data byte count (in the case it was re-used).
 *
 * @param value
 * @return size in bytes
 */
@TargetApi(VERSION_CODES.KITKAT)
public static int getBitmapSize(BitmapDrawable value) {
    Bitmap bitmap = value.getBitmap();

    // From KitKat onward use getAllocationByteCount() as allocated bytes can potentially be
    // larger than bitmap byte count.
    if (Utils.hasKitKat()) {
        return bitmap.getAllocationByteCount();
    }

    if (Utils.hasHoneycombMR1()) {
        return bitmap.getByteCount();
    }

    // Pre HC-MR1
    return bitmap.getRowBytes() * bitmap.getHeight();
}
 

/**
 * 图片按比例大小压缩方法
 *
 * @param bitmap
 * @param sizeM  图片大小（以MB为单位）
 * @return
 */
public static Bitmap getImage(Bitmap bitmap, int sizeM) {
    Bitmap bmp = bitmap;
    // 创建操作图片用的matrix对象
    Matrix matrix = new Matrix();
    // 获取这个图片的宽和高
    do {
        float width = bmp.getWidth();
        float height = bmp.getHeight();
        // 缩放图片动作
        matrix.postScale(0.8F, 0.8F);
        bmp = Bitmap.createBitmap(bmp, 0, 0, (int) width,
                (int) height, matrix, true);
    } while (bmp.getByteCount() > sizeM * 1024 * 1024);
    return bmp;
}
 

/**
 * Get the size in bytes of a bitmap.
 * 
 * @param bitmap
 * @return size in bytes
 */
@TargetApi(12)
public static int getBitmapSize(Bitmap bitmap) {
	if (Utils.hasHoneycombMR1()) {
		return bitmap.getByteCount();
	}
	// Pre HC-MR1
	return bitmap.getRowBytes() * bitmap.getHeight();
}
 

/**
 * 获取 {@link Bitmap} 占用内存大小，单位字节
 */
public static int getByteCount(@Nullable Bitmap bitmap) {
    // bitmap.isRecycled()过滤很关键，在4.4以及以下版本当bitmap已回收时调用其getAllocationByteCount()方法将直接崩溃
    if (bitmap == null || bitmap.isRecycled()) {
        return 0;
    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        return bitmap.getAllocationByteCount();
    } else {
        return bitmap.getByteCount();
    }
}
 

@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR1)
private int getBitmapSize(Bitmap bitmap) {
  if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB_MR1) {
    return bitmap.getRowBytes() * bitmap.getHeight();
  }
  return bitmap.getByteCount();
}
 

/**
 * 得到bitmap的大小
 */
public static int getBitmapSize(Bitmap bitmap) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {    //API 19
        return bitmap.getAllocationByteCount();
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {//API 12
        return bitmap.getByteCount();
    }
    // 在低版本中用一行的字节x高度
    return bitmap.getRowBytes() * bitmap.getHeight(); //earlier version
}
 

public static int calculateBitmapSize(Bitmap bitmap) {
    int sizeInBytes;
    if (Utils.isHoneycombMR1orLater()) {
        sizeInBytes = bitmap.getByteCount();
    }
    else {
        sizeInBytes = bitmap.getRowBytes() * bitmap.getHeight();
    }
    return sizeInBytes / 1024;
}
 

/**
 * returns the bytesize of the give bitmap
 */
public static int byteSizeOf(Bitmap bitmap) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        return bitmap.getAllocationByteCount();
    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {
        return bitmap.getByteCount();
    } else {
        return bitmap.getRowBytes() * bitmap.getHeight();
    }
}
 

public static int getBitmapSize(Bitmap bitmap)
{
    int size = 0;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        size = bitmap.getAllocationByteCount();
    }else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1)
    {
        size = bitmap.getByteCount();
    }else
    {
        size = bitmap.getWidth()*bitmap.getHeight()*3;
    }
    return size;
}
 

public static int getBitmapSize(Bitmap bitmap)
{
if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.HONEYCOMB_MR1)
  return bitmap.getByteCount();
// Pre HC-MR1
return bitmap.getRowBytes()*bitmap.getHeight();
}
 

public static byte[] loadPhotoRGBABytes(Bitmap bitmap) {
    if (bitmap == null) {
        return null;
    }
    byte[] bytes = new byte[bitmap.getByteCount()];
    ByteBuffer rgbaBuffer = ByteBuffer.wrap(bytes);
    bitmap.copyPixelsToBuffer(rgbaBuffer);
    return bytes;
}
 

/**
 * Get the size in bytes of a bitmap.
 *
 * @param bitmap
 * @return size in bytes
 */
@TargetApi(12)
public static int getBitmapSize(Bitmap bitmap) {
    if (Utils.hasHoneycombMR1()) {
        return bitmap.getByteCount();
    }
    // Pre HC-MR1
    return bitmap.getRowBytes() * bitmap.getHeight();
}
 

@TargetApi(Build.VERSION_CODES.KITKAT)
private static int getBitmapSize(Bitmap bitmap) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        return bitmap.getAllocationByteCount();
    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {
        return bitmap.getByteCount();
    }
    return bitmap.getRowBytes() * bitmap.getHeight();
}
 

@Override
protected int sizeOf(Uri key, Bitmap value) {
    return value.getByteCount() / 1024;
}
 

@Override
protected int sizeOf(String key, Bitmap value) {
	return value.getByteCount();
}
 

private static void findImageViewInViewTree(View curNode,List<ImageViewInfo> imageList) {

        if (curNode.getVisibility() != View.VISIBLE) {
            return ;
        }
        if (curNode instanceof ViewGroup) {
            ViewGroup curNodeGroup = (ViewGroup) curNode;
            for (int i = 0; i < curNodeGroup.getChildCount(); i++) {
                findImageViewInViewTree(curNodeGroup.getChildAt(i),imageList);
            }
        } else {
            if (curNode instanceof ImageView) {
                ImageViewInfo imageViewInfo = new ImageViewInfo();
                ImageView curImage = (ImageView) curNode;
                Drawable drawable = curImage.getDrawable();
                if (drawable instanceof BitmapDrawable) {
                    Bitmap bitmap = ((BitmapDrawable) drawable).getBitmap();
                    imageViewInfo.imageHeight = bitmap.getHeight();
                    imageViewInfo.imageWidth = bitmap.getWidth();
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {     //API 19
                        imageViewInfo.imageSize = bitmap.getAllocationByteCount();
                    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {//API 12
                        imageViewInfo.imageSize = bitmap.getByteCount();
                    } else {
                        imageViewInfo.imageSize = bitmap.getRowBytes() * bitmap.getHeight();
                    }

                    if(bitmap.getHeight() * bitmap.getWidth() > curImage.getMeasuredHeight() * curImage.getMeasuredWidth()){
                        imageViewInfo.imgViewInfo = MyUtil.printImageView(curImage);
                        imageList.add(imageViewInfo);
                    }

                }else {
                    imageViewInfo.imageHeight = drawable.getIntrinsicHeight();
                    imageViewInfo.imageWidth = drawable.getIntrinsicWidth();
                    if(imageViewInfo.imageHeight * imageViewInfo.imageWidth > curImage.getMeasuredHeight() * curImage.getMeasuredWidth()){
                        imageViewInfo.imgViewInfo = MyUtil.printImageView(curImage);
                        imageList.add(imageViewInfo);
                    }
                }

            }
        }
        return ;
    }
 

public static int getSizeInBytes(final Bitmap bitmap) {
    return bitmap.getByteCount();
}