DisplayTopology
  public final class DisplayTopology  
  extends Object   implements Parcelable  
| java.lang.Object | |
| ↳ | android.hardware.display.DisplayTopology | 
Represents the relative placement of extended displays. Does not support concurrent calls, so a lock should be held when calling into this class.
Summary
| Inherited constants | 
|---|
| Fields | |
|---|---|
|  public static final Creator<DisplayTopology> | CREATOR
 | 
| Public methods | |
|---|---|
|  int |  describeContents() Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. | 
|  boolean |  equals(Object obj) Indicates whether some other object is "equal to" this one. | 
|  SparseArray<RectF> |  getAbsoluteBounds() Assign absolute bounds in dp to each display. | 
|  int |  hashCode() Returns a hash code value for the object. | 
|  String |  toString() Returns a string representation of the object. | 
|  void |  writeToParcel(Parcel dest, int flags) Flatten this object in to a Parcel. | 
| Inherited methods | |
|---|---|
Fields
Public methods
describeContents
public int describeContents ()
Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.
| Returns | |
|---|---|
| int | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0orCONTENTS_FILE_DESCRIPTOR | 
equals
public boolean equals (Object obj)
Indicates whether some other object is "equal to" this one.
 The equals method implements an equivalence relation on non-null object references: 
- It is reflexive: for any non-null reference value x,x.equals(x)should returntrue.
- It is symmetric: for any non-null reference values xandy,x.equals(y)should returntrueif and only ify.equals(x)returnstrue.
- It is transitive: for any non-null reference values x,y, andz, ifx.equals(y)returnstrueandy.equals(z)returnstrue, thenx.equals(z)should returntrue.
- It is consistent: for any non-null reference values xandy, multiple invocations ofx.equals(y)consistently returntrueor consistently returnfalse, provided no information used inequalscomparisons on the objects is modified.
- For any non-null reference value x,x.equals(null)should returnfalse.
An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.
| Parameters | |
|---|---|
| obj | Object: the reference object with which to compare. | 
| Returns | |
|---|---|
| boolean | trueif this object is the same as the obj argument;falseotherwise. | 
getAbsoluteBounds
public SparseArray<RectF> getAbsoluteBounds ()
Assign absolute bounds in dp to each display. The top-left corner of the root is at position (0, 0).
| Returns | |
|---|---|
| SparseArray<RectF> | Map from logical display ID to the display's absolute bounds in dp | 
hashCode
public int hashCode ()
Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap. 
 The general contract of hashCode is: 
- Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCodemethod must consistently return the same integer, provided no information used inequalscomparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
- If two objects are equal according to the equalsmethod, then calling thehashCodemethod on each of the two objects must produce the same integer result.
- It is not required that if two objects are unequal according to the equalsmethod, then calling thehashCodemethod on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
| Returns | |
|---|---|
| int | a hash code value for this object. | 
toString
public String toString ()
Returns a string representation of the object.
| Returns | |
|---|---|
| String | a string representation of the object. | 
writeToParcel
public void writeToParcel (Parcel dest, int flags)
Flatten this object in to a Parcel.
| Parameters | |
|---|---|
| dest | Parcel: The Parcel in which the object should be written. This value cannot benull. | 
| flags | int: Additional flags about how the object should be written. May be 0 orParcelable.PARCELABLE_WRITE_RETURN_VALUE. Value is either0or a combination ofParcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES | 
