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Android Reference

DisplayInfo


android.view

Class DisplayInfo

  • All Implemented Interfaces:
    Parcelable


    public final class DisplayInfo
    extends Object
    implements Parcelable
    Describes the characteristics of a particular logical display.
    • Field Detail

      • layerStack

        public int layerStack
        The surface flinger layer stack associated with this logical display.
      • flags

        public int flags
        Display flags.
      • type

        public int type
        Display type.
      • address

        public String address
        Display address, or null if none. Interpretation varies by display type.
      • name

        public String name
        The human-readable name of the display.
      • appWidth

        public int appWidth
        The width of the portion of the display that is available to applications, in pixels. Represents the size of the display minus any system decorations.
      • appHeight

        public int appHeight
        The height of the portion of the display that is available to applications, in pixels. Represents the size of the display minus any system decorations.
      • smallestNominalAppWidth

        public int smallestNominalAppWidth
        The smallest value of appWidth that an application is likely to encounter, in pixels, excepting cases where the width may be even smaller due to the presence of a soft keyboard, for example.
      • smallestNominalAppHeight

        public int smallestNominalAppHeight
        The smallest value of appHeight that an application is likely to encounter, in pixels, excepting cases where the height may be even smaller due to the presence of a soft keyboard, for example.
      • largestNominalAppWidth

        public int largestNominalAppWidth
        The largest value of appWidth that an application is likely to encounter, in pixels, excepting cases where the width may be even larger due to system decorations such as the status bar being hidden, for example.
      • largestNominalAppHeight

        public int largestNominalAppHeight
        The largest value of appHeight that an application is likely to encounter, in pixels, excepting cases where the height may be even larger due to system decorations such as the status bar being hidden, for example.
      • logicalWidth

        public int logicalWidth
        The logical width of the display, in pixels. Represents the usable size of the display which may be smaller than the physical size when the system is emulating a smaller display.
      • logicalHeight

        public int logicalHeight
        The logical height of the display, in pixels. Represents the usable size of the display which may be smaller than the physical size when the system is emulating a smaller display.
      • refreshRate

        public float refreshRate
        The refresh rate of this display in frames per second.

        The value of this field is indeterminate if the logical display is presented on more than one physical display.

      • logicalDensityDpi

        public int logicalDensityDpi
        The logical display density which is the basis for density-independent pixels.
      • physicalXDpi

        public float physicalXDpi
        The exact physical pixels per inch of the screen in the X dimension.

        The value of this field is indeterminate if the logical display is presented on more than one physical display.

      • physicalYDpi

        public float physicalYDpi
        The exact physical pixels per inch of the screen in the Y dimension.

        The value of this field is indeterminate if the logical display is presented on more than one physical display.

    • Constructor Detail

      • DisplayInfo

        public DisplayInfo()
    • Method Detail

      • equals

        public boolean equals(Object o)
        Description copied from class: Object
        Compares this instance with the specified object and indicates if they are equal. In order to be equal, o must represent the same object as this instance using a class-specific comparison. The general contract is that this comparison should be reflexive, symmetric, and transitive. Also, no object reference other than null is equal to null.

        The default implementation returns true only if this == o. See Writing a correct equals method if you intend implementing your own equals method.

        The general contract for the equals and Object.hashCode() methods is that if equals returns true for any two objects, then hashCode() must return the same value for these objects. This means that subclasses of Object usually override either both methods or neither of them.

        Overrides:
        equals in class Object
        Parameters:
        o - the object to compare this instance with.
        Returns:
        true if the specified object is equal to this Object; false otherwise.
        See Also:
        Object.hashCode()
      • hashCode

        public int hashCode()
        Description copied from class: Object
        Returns an integer hash code for this object. By contract, any two objects for which Object.equals(java.lang.Object) returns true must return the same hash code value. This means that subclasses of Object usually override both methods or neither method.

        Note that hash values must not change over time unless information used in equals comparisons also changes.

        See Writing a correct hashCode method if you intend implementing your own hashCode method.

        Overrides:
        hashCode in class Object
        Returns:
        this object's hash code.
        See Also:
        Object.equals(java.lang.Object)
      • readFromParcel

        public void readFromParcel(Parcel source)
      • describeContents

        public int describeContents()
        Description copied from interface: Parcelable
        Describe the kinds of special objects contained in this Parcelable's marshalled representation.
        Specified by:
        describeContents in interface Parcelable
        Returns:
        a bitmask indicating the set of special object types marshalled by the Parcelable.
      • toString

        public String toString()
        Description copied from class: Object
        Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:
           getClass().getName() + '@' + Integer.toHexString(hashCode())

        See Writing a useful toString method if you intend implementing your own toString method.

        Overrides:
        toString in class Object
        Returns:
        a printable representation of this object.


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