devliving.online.cvscanner.util

Class Util

java.lang.Object

devliving.online.cvscanner.util.Util

public final class Util
extends java.lang.Object

Created by Mehedi Hasan Khan on 8/20/17.

Constructor Summary

Constructors

Constructor and Description
Util()

Method Summary

Modifier and Type	Method and Description
static int	calculateBitmapSampleSize(android.content.Context context, android.net.Uri bitmapUri)
static int	calculateInSampleSize(android.content.Context context, android.net.Uri imageUri, int reqWidth, int reqHeight, boolean keepAspectRatio)
static void	closeSilently(java.io.Closeable c)
static android.net.Uri	createTempFile(android.content.Context context, java.lang.String fileName, java.lang.String fileExtension, boolean useExternalStorage)
static int	getExifRotation(android.content.Context context, android.net.Uri imageUri)
static android.net.Uri	getUriForFile(android.content.Context context, java.io.File file) Shareable FileProvider uri.
static android.net.Uri	getUriFromPath(java.lang.String path)
static android.graphics.Bitmap	loadBitmapFromUri(android.content.Context context, int sampleSize, android.net.Uri uri)
static android.graphics.Bitmap	loadBitmapFromUri(android.content.Context context, android.net.Uri imageUri, int reqWidth, int reqHeight) Tries to preserve aspect ratio
static java.lang.String	saveImage(android.content.Context context, java.lang.String imageName, Mat img, boolean useExternalStorage)
static boolean	setExifRotation(android.content.Context context, android.net.Uri imageUri, int rotation)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Util

public Util()

Method Detail

closeSilently

public static void closeSilently(java.io.Closeable c)

createTempFile

public static android.net.Uri createTempFile(android.content.Context context,
                                             java.lang.String fileName,
                                             java.lang.String fileExtension,
                                             boolean useExternalStorage)
                                      throws java.io.IOException

Throws:

java.io.IOException

getUriForFile

public static android.net.Uri getUriForFile(android.content.Context context,
                                            java.io.File file)

Shareable FileProvider uri. The image must be in either 'context.getCacheDir() + "/CVScanner/"' or 'context.getExternalFilesDir(Environment.DIRECTORY_PICTURES)'

Parameters:

context -

file -

Returns:

getUriFromPath

public static android.net.Uri getUriFromPath(java.lang.String path)

saveImage

public static java.lang.String saveImage(android.content.Context context,
                                         java.lang.String imageName,
                                         Mat img,
                                         boolean useExternalStorage)
                                  throws java.io.IOException

Parameters:

context -

imageName - without extension

img -

useExternalStorage -

Returns:

Throws:

java.io.IOException

calculateBitmapSampleSize

public static int calculateBitmapSampleSize(android.content.Context context,
                                            android.net.Uri bitmapUri)
                                     throws java.io.IOException

Throws:

java.io.IOException

loadBitmapFromUri

public static android.graphics.Bitmap loadBitmapFromUri(android.content.Context context,
                                                        int sampleSize,
                                                        android.net.Uri uri)
                                                 throws java.io.FileNotFoundException

Throws:

java.io.FileNotFoundException

calculateInSampleSize

public static int calculateInSampleSize(android.content.Context context,
                                        android.net.Uri imageUri,
                                        int reqWidth,
                                        int reqHeight,
                                        boolean keepAspectRatio)
                                 throws java.io.FileNotFoundException

Throws:

java.io.FileNotFoundException

loadBitmapFromUri

public static android.graphics.Bitmap loadBitmapFromUri(android.content.Context context,
                                                        android.net.Uri imageUri,
                                                        int reqWidth,
                                                        int reqHeight)

Tries to preserve aspect ratio

Parameters:

context -

imageUri -

reqWidth -

reqHeight -

Returns:

getExifRotation

public static int getExifRotation(android.content.Context context,
                                  android.net.Uri imageUri)
                           throws java.io.IOException

Throws:

java.io.IOException

setExifRotation

public static boolean setExifRotation(android.content.Context context,
                                      android.net.Uri imageUri,
                                      int rotation)
                               throws java.io.IOException

Throws:

java.io.IOException