PackageInstaller.InstallConstraints
public
static
final
class
PackageInstaller.InstallConstraints
extends Object
implements
Parcelable
java.lang.Object | |
↳ | android.content.pm.PackageInstaller.InstallConstraints |
A class to encapsulate constraints for installation.
When used with PackageInstaller.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 | |
---|---|
class |
PackageInstaller.InstallConstraints.Builder
Builder class for constructing |
Inherited constants |
---|
Fields | |
---|---|
public
static
final
Creator<PackageInstaller.InstallConstraints> |
CREATOR
|
public
static
final
PackageInstaller.InstallConstraints |
GENTLE_UPDATE
Preset constraints suitable for gentle update. |
Public methods | |
---|---|
int
|
describeContents()
Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
boolean
|
equals(Object o)
Indicates whether some other object is "equal to" this one. |
int
|
hashCode()
Returns a hash code value for the object. |
boolean
|
isAppNotForegroundRequired()
|
boolean
|
isAppNotInteractingRequired()
|
boolean
|
isAppNotTopVisibleRequired()
|
boolean
|
isDeviceIdleRequired()
|
boolean
|
isNotInCallRequired()
|
void
|
writeToParcel(Parcel dest, int flags)
Flatten this object in to a Parcel. |
Inherited methods | |
---|---|
Fields
CREATOR
public static final Creator<PackageInstaller.InstallConstraints> CREATOR
GENTLE_UPDATE
public static final PackageInstaller.InstallConstraints GENTLE_UPDATE
Preset constraints suitable for gentle update.
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 0 or CONTENTS_FILE_DESCRIPTOR |
equals
public boolean equals (Object o)
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 | |
---|---|
o |
Object : This value may be null . |
Returns | |
---|---|
boolean |
true if this object is the same as the obj
argument; false otherwise. |
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
hashCode
method must consistently return the same integer, provided no information used inequals
comparisons 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
equals
method, then calling thehashCode
method 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
equals
method, then calling thehashCode
method 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. |
isAppNotForegroundRequired
public boolean isAppNotForegroundRequired ()
Returns | |
---|---|
boolean |
isAppNotInteractingRequired
public boolean isAppNotInteractingRequired ()
Returns | |
---|---|
boolean |
isAppNotTopVisibleRequired
public boolean isAppNotTopVisibleRequired ()
Returns | |
---|---|
boolean |
writeToParcel
public void writeToParcel (Parcel dest, int flags)
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.PARCELABLE_WRITE_RETURN_VALUE .
Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE , and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES |
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Last updated 2024-04-11 UTC.