InstallConstraints
class InstallConstraints : Parcelable
kotlin.Any | |
↳ | android.content.pm.PackageInstaller.InstallConstraints |
A class to encapsulate constraints for installation. When used with checkInstallConstraints(java.util.List,android.content.pm.PackageInstaller.InstallConstraints,java.util.concurrent.Executor,java.util.function.Consumer)
, it specifies the conditions to check against for the packages in question. This can be used by app stores to deliver auto updates without disrupting the user experience (referred as gentle update) - for example, an app store might hold off updates when it find out the app to update is interacting with the user. Use Builder
to create a new instance and call mutator methods to add constraints. If no mutators were called, default constraints will be generated which implies no constraints. It is recommended to use preset constraints which are useful in most cases. For the purpose of gentle update, it is recommended to always use GENTLE_UPDATE
for the system knows best how to do it. It will also benefits the installer as the platform evolves and add more constraints to improve the accuracy and efficiency of gentle update. Note the constraints are applied transitively. If app Foo is used by app Bar (via shared library or bounded service), the constraints will also be applied to Bar.
Summary
Nested classes | |
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Builder class for constructing |
Inherited constants | |
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Public methods | |
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Int | |
Boolean |
Indicates whether some other object is "equal to" this one. |
Int |
hashCode() |
Boolean | |
Boolean | |
Boolean | |
Boolean | |
Boolean | |
Unit |
writeToParcel(dest: Parcel, flags: Int) Flatten this object in to a Parcel. |
Properties | |
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static Parcelable.Creator<PackageInstaller.InstallConstraints!> | |
static PackageInstaller.InstallConstraints |
Preset constraints suitable for gentle update. |
Public methods
describeContents
fun describeContents(): Int
Return | |
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Int |
a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or android.os.Parcelable#CONTENTS_FILE_DESCRIPTOR |
equals
fun equals(other: Any?): Boolean
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
x
andy
,x.equals(y)
should returntrue
if and only ify.equals(x)
returnstrue
. - It is transitive: for any non-null reference values
x
,y
, andz
, ifx.equals(y)
returnstrue
andy.equals(z)
returnstrue
, thenx.equals(z)
should returntrue
. - It is consistent: for any non-null reference values
x
andy
, multiple invocations ofx.equals(y)
consistently returntrue
or consistently returnfalse
, provided no information used inequals
comparisons 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 | |
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obj |
the reference object with which to compare. |
o |
This value may be null . |
Return | |
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Boolean |
true if this object is the same as the obj argument; false otherwise. |
writeToParcel
fun writeToParcel(
dest: Parcel,
flags: Int
): Unit
Flatten this object in to a Parcel.
Parameters | |
---|---|
dest |
Parcel: This value cannot be null . |
flags |
Int: Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE . Value is either 0 or a combination of android.os.Parcelable#PARCELABLE_WRITE_RETURN_VALUE , and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES |
Properties
CREATOR
static val CREATOR: Parcelable.Creator<PackageInstaller.InstallConstraints!>
GENTLE_UPDATE
static val GENTLE_UPDATE: PackageInstaller.InstallConstraints
Preset constraints suitable for gentle update.