de.mrapp.android.util

Class DisplayUtil

java.lang.Object

de.mrapp.android.util.DisplayUtil

public class DisplayUtil
extends java.lang.Object

An utility class, which provides static methods, which are related to a device's display metrics.

Since:

1.0.0

Field Summary

Fields

Modifier and Type	Field and Description
protected static float	PIXEL_DP_RATIO The ratio, which can be used to convert values, which are measured in pixels, into values, which are measured in dp, and vice versa.

Method Summary

Modifier and Type	Method and Description
static float	dpToPixels(android.content.Context context, float dp) Converts a Float value, which is measured in dp, into a value, which is measured in pixels.
static int	dpToPixels(android.content.Context context, int dp) Converts an Integer value, which is measured in dp, into a value, which is measured in pixels.
static float	pixelsToDp(android.content.Context context, float pixels) Converts a Float value, which is measured in pixels, into a value, which is measured in dp.
static int	pixelsToDp(android.content.Context context, int pixels) Converts an Integer value, which is measured in pixels, into a value, which is measured in dp.

Methods inherited from class java.lang.Object

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

Field Detail

PIXEL_DP_RATIO

@VisibleForTesting
protected static final float PIXEL_DP_RATIO

The ratio, which can be used to convert values, which are measured in pixels, into values, which are measured in dp, and vice versa.

See Also:

Constant Field Values

Method Detail

pixelsToDp

public static int pixelsToDp(android.content.Context context,
                             int pixels)

Converts an Integer value, which is measured in pixels, into a value, which is measured in dp.

Parameters:

context - The context, which should be used to retrieve the device's display metrics, as an instance of the class Context. The context may not be null

pixels - The pixel value, which should be converted, as an Integer value

Returns:

The calculated dp value as an Integer value. The value might be rounded

pixelsToDp

public static float pixelsToDp(android.content.Context context,
                               float pixels)

Converts a Float value, which is measured in pixels, into a value, which is measured in dp.

Parameters:

context - The context, which should be used to retrieve the device's display metrics, as an instance of the class Context. The context may not be null

pixels - The pixel value, which should be converted, as a Float value

Returns:

The calculated dp value as a Float value

dpToPixels

public static int dpToPixels(android.content.Context context,
                             int dp)

Converts an Integer value, which is measured in dp, into a value, which is measured in pixels.

Parameters:

context - The context, which should be used to retrieve the device's display metrics, as an instance of the class Context. The context may not be null

dp - The dp value, which should be converted, as an Integer value

Returns:

The calculated pixel value as an Integer value. The value might be rounded

dpToPixels

public static float dpToPixels(android.content.Context context,
                               float dp)

Converts a Float value, which is measured in dp, into a value, which is measured in pixels.

Parameters:

context - The context, which should be used to retrieve the device's display metrics, as an instance of the class Context. The context may not be null

dp - The dp value, which should be converted, as a Float value

Returns:

The calculated pixel value as a Float value