net.doo.snap.util.bitmap

Class BitmapUtils

net.doo.snap.util.bitmap.BitmapUtils

public class BitmapUtils

Contains convenient methods for Bitmaps

Method Summary

Modifier and Type	Method and Description
static int	calculateInSampleSize() Calculates best inSampleSize to fit reqWidth and reqHeight or a bit more
static void	compress() Compresses Bitmap to File
static android.graphics.Bitmap	createPreview() Create preview from large (nodpi) resource image
static android.graphics.Bitmap	createPreview() Create preview from image byte array
static android.graphics.Bitmap	decodeQuietly() Decodes Bitmap with minimal log output. Accepts null arguments.
static android.graphics.Bitmap	drawableToBitmap() Converts image drawable to bitmap
static android.graphics.Rect	getBitmapBounds()
static android.graphics.Rect	getContentBounds()
static boolean	isBitmapValid()

Method Detail

getBitmapBounds

public static android.graphics.Rect getBitmapBounds()

Returns:

bounds of Bitmap from file.

isBitmapValid

public static boolean isBitmapValid()

Returns:

true if Bitmap valid (and can be drawed). false otherwise.

getContentBounds

public static android.graphics.Rect getContentBounds()

Returns:

Rect with minimum bounds in which all content of Bitmap might be fit. Assuming that transparent pixels are "empty", therefore not counting them as a content. Method performs in linear time (relatively to amount of pixels), so it's not recommended to invoke it from the main thread for large images.

Throws:

- if Bitmap is null

compress

public static void compress()

Compresses Bitmap to File

createPreview

public static android.graphics.Bitmap createPreview()

Create preview from large (nodpi) resource image

Returns:

Bitmap with size close to target height and width

createPreview

public static android.graphics.Bitmap createPreview()

Create preview from image byte array

Returns:

Bitmap with size close to target height and width

calculateInSampleSize

public static int calculateInSampleSize()

Calculates best inSampleSize to fit reqWidth and reqHeight or a bit more

Returns:

decodeQuietly

public static android.graphics.Bitmap decodeQuietly()

Decodes Bitmap with minimal log output. Accepts null arguments.

Returns:

Bitmap or null if load failed.

drawableToBitmap

public static android.graphics.Bitmap drawableToBitmap()

Converts image drawable to bitmap

Returns:

Bitmap image bitmap