Util (glide API)

java.lang.Object
- com.bumptech.glide.util.Util

```
public final class Util
extends Object
```
A collection of assorted utility classes.

Method Summary

All Methods Static Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`static void`	`assertBackgroundThread()` Throws an `IllegalArgumentException` if called on the main thread.
`static void`	`assertMainThread()` Throws an `IllegalArgumentException` if called on a thread other than the main thread.
`static boolean`	`bothNullOrEqual(Object a, Object b)` Null-safe equivalent of `a.equals(b)`.
`static <T> Queue<T>`	`createQueue(int size)` Creates a `Queue` of the given size using Glide's preferred implementation.
`static int`	`getBitmapByteSize(Bitmap bitmap)` Returns the in memory size of the given `Bitmap` in bytes.
`static int`	`getBitmapByteSize(int width, int height, Bitmap.Config config)` Returns the in memory size of `Bitmap` with the given width, height, and `Bitmap.Config`.
`static int`	`getSize(Bitmap bitmap)` Deprecated. Use `getBitmapByteSize(android.graphics.Bitmap)` instead. Scheduled to be removed in Glide 4.0.
`static <T> List<T>`	`getSnapshot(Collection<T> other)` Returns a copy of the given list that is safe to iterate over and perform actions that may modify the original list.
`static boolean`	`isOnBackgroundThread()` Returns `true` if called on a background thread, `false` otherwise.
`static boolean`	`isOnMainThread()` Returns `true` if called on the main thread, `false` otherwise.
`static boolean`	`isValidDimensions(int width, int height)` Returns true if width and height are both > 0 and/or equal to `Target.SIZE_ORIGINAL`.
`static String`	`sha256BytesToHex(byte[] bytes)` Returns the hex string of the given byte array representing a SHA256 hash.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - sha256BytesToHex
```
public static String sha256BytesToHex(byte[] bytes)
```
    Returns the hex string of the given byte array representing a SHA256 hash.
  - getSize
```
@Deprecated
public static int getSize(Bitmap bitmap)
```
    Deprecated. Use getBitmapByteSize(android.graphics.Bitmap) instead. Scheduled to be removed in Glide 4.0.
    
    Returns the allocated byte size of the given bitmap.
    
    See Also:
    
    getBitmapByteSize(android.graphics.Bitmap)
  - getBitmapByteSize
```
public static int getBitmapByteSize(Bitmap bitmap)
```
    Returns the in memory size of the given Bitmap in bytes.
  - getBitmapByteSize
```
public static int getBitmapByteSize(int width,
                                    int height,
                                    Bitmap.Config config)
```
    Returns the in memory size of Bitmap with the given width, height, and Bitmap.Config.
  - isValidDimensions
```
public static boolean isValidDimensions(int width,
                                        int height)
```
    Returns true if width and height are both > 0 and/or equal to Target.SIZE_ORIGINAL.
  - assertMainThread
```
public static void assertMainThread()
```
    Throws an IllegalArgumentException if called on a thread other than the main thread.
  - assertBackgroundThread
```
public static void assertBackgroundThread()
```
    Throws an IllegalArgumentException if called on the main thread.
  - isOnMainThread
```
public static boolean isOnMainThread()
```
    Returns true if called on the main thread, false otherwise.
  - isOnBackgroundThread
```
public static boolean isOnBackgroundThread()
```
    Returns true if called on a background thread, false otherwise.
  - createQueue
```
public static <T> Queue<T> createQueue(int size)
```
    Creates a Queue of the given size using Glide's preferred implementation.
  - getSnapshot
```
public static <T> List<T> getSnapshot(Collection<T> other)
```
    Returns a copy of the given list that is safe to iterate over and perform actions that may modify the original list.
    See #303 and #375.
  - bothNullOrEqual
```
public static boolean bothNullOrEqual(Object a,
                                      Object b)
```
    Null-safe equivalent of a.equals(b).
    
    See Also:
    
    Objects.equals(java.lang.Object, java.lang.Object)

Class Util

Method Summary

Methods inherited from class java.lang.Object

Method Detail

sha256BytesToHex

getSize

getBitmapByteSize

getBitmapByteSize

isValidDimensions

assertMainThread

assertBackgroundThread

isOnMainThread

isOnBackgroundThread

createQueue

getSnapshot

bothNullOrEqual