SystemUpdatePolicy Class
Definition
Important
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Determines when over-the-air system updates are installed on a device.
[Android.Runtime.Register("android/app/admin/SystemUpdatePolicy", ApiSince=23, DoNotGenerateAcw=true)]
public class SystemUpdatePolicy : Java.Lang.Object, Android.OS.IParcelable, IDisposable, Java.Interop.IJavaPeerable[<Android.Runtime.Register("android/app/admin/SystemUpdatePolicy", ApiSince=23, DoNotGenerateAcw=true)>]
type SystemUpdatePolicy = class
inherit Object
interface IParcelable
interface IJavaObject
interface IDisposable
interface IJavaPeerable- Inheritance
- Attributes
- Implements
Remarks
Determines when over-the-air system updates are installed on a device. Only a device policy controller (DPC) running in device owner mode or in profile owner mode for an organization-owned device can set an update policy for the device—by calling the DevicePolicyManager method DevicePolicyManager#setSystemUpdatePolicy setSystemUpdatePolicy(). An update policy affects the pending system update (if there is one) and any future updates for the device.
If a policy is set on a device, the system doesn't notify the user about updates.
<h3>Example</h3>
The example below shows how a DPC might set a maintenance window for system updates:
<code>
private final MAINTENANCE_WINDOW_START = 1380; // 11pm
private final MAINTENANCE_WINDOW_END = 120; // 2am
// ...
// Create the system update policy
SystemUpdatePolicy policy = SystemUpdatePolicy.createWindowedInstallPolicy(
MAINTENANCE_WINDOW_START, MAINTENANCE_WINDOW_END);
// Get a DevicePolicyManager instance to set the policy on the device
DevicePolicyManager dpm =
(DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
ComponentName adminComponent = getComponentName(context);
dpm.setSystemUpdatePolicy(adminComponent, policy);
</code>
<h3>Developer guide</h3> To learn more, read Manage system updates.
Java documentation for android.app.admin.SystemUpdatePolicy.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Constructors
| SystemUpdatePolicy(IntPtr, JniHandleOwnership) |
Properties
| Class |
Returns the runtime class of this |
| Creator | |
| FreezePeriods |
Returns the list of freeze periods previously set on this system update policy object. |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| InstallWindowEnd |
Get the end of the maintenance window. |
| InstallWindowStart |
Get the start of the maintenance window. |
| JniIdentityHashCode | (Inherited from Object) |
| JniPeerMembers | |
| PeerReference | (Inherited from Object) |
| PolicyType |
Returns the type of system update policy, or -1 if no policy has been set. |
| ThresholdClass | |
| ThresholdType | |
Methods
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| CreateAutomaticInstallPolicy() |
Create a policy object and set it to install update automatically as soon as one is available. |
| CreatePostponeInstallPolicy() |
Create a policy object and set it to block installation for a maximum period of 30 days. |
| CreateWindowedInstallPolicy(Int32, Int32) |
Create a policy object and set it to: new system update will only be installed automatically when the system clock is inside a daily maintenance window. |
| DescribeContents() | |
| Dispose() | (Inherited from Object) |
| Dispose(Boolean) | (Inherited from Object) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| SetFreezePeriods(IList<FreezePeriod>) |
Configure a list of freeze periods on top of the current policy. |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| ToArray<T>() | (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterFromRuntime() | (Inherited from Object) |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| WriteToParcel(Parcel, ParcelableWriteFlags) | |
Explicit Interface Implementations
| IJavaPeerable.Disposed() | (Inherited from Object) |
| IJavaPeerable.DisposeUnlessReferenced() | (Inherited from Object) |
| IJavaPeerable.Finalized() | (Inherited from Object) |
| IJavaPeerable.JniManagedPeerState | (Inherited from Object) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from Object) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from Object) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from Object) |
Extension Methods
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| GetJniTypeName(IJavaPeerable) | |