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| java.lang.Object | ||
| ↳ | android.content.BroadcastReceiver | |
| ↳ | android.app.admin.DeviceAdminReceiver | |
Base class for implementing a device administration component. This class provides a convenience for interpreting the raw intent actions that are sent by the system.
The callback methods, like the base BroadcastReceiver.onReceive() method, happen on the main thread of the process. Thus long running operations must be done on another thread. Note that because a receiver is done once returning from its receive function, such long-running operations should probably be done in a Service.
When publishing your DeviceAdmin subclass as a receiver, it must handle ACTION_DEVICE_ADMIN_ENABLED and require the BIND_DEVICE_ADMIN permission. A typical manifest entry would look like:
<receiver android:name=".app.DeviceAdminSample$DeviceAdminSampleReceiver"
android:label="@string/sample_device_admin"
android:description="@string/sample_device_admin_description"
android:permission="android.permission.BIND_DEVICE_ADMIN">
<meta-data android:name="android.app.device_admin"
android:resource="@xml/device_admin_sample" />
<intent-filter>
<action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
</intent-filter>
</receiver>
The meta-data referenced here provides addition information specific to the device administrator, as parsed by the DeviceAdminInfo class. A typical file would be:
<device-admin xmlns:android="http://schemas.android.com/apk/res/android">
<uses-policies>
<limit-password />
<watch-login />
<reset-password />
<force-lock />
<wipe-data />
<expire-password />
<encrypted-storage />
<disable-camera />
<disable-keyguard-features />
</uses-policies>
</device-admin>
For more information about device administration, read the Device Administration developer guide.
| Constants | |||||||||||
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| String | ACTION_DEVICE_ADMIN_DISABLED | Action sent to a device administrator when the user has disabled it. | |||||||||
| String | ACTION_DEVICE_ADMIN_DISABLE_REQUESTED | Action sent to a device administrator when the user has requested to disable it, but before this has actually been done. | |||||||||
| String | ACTION_DEVICE_ADMIN_ENABLED | This is the primary action that a device administrator must implement to be allowed to manage a device. | |||||||||
| String | ACTION_PASSWORD_CHANGED | Action sent to a device administrator when the user has changed the password of their device. | |||||||||
| String | ACTION_PASSWORD_EXPIRING | Action periodically sent to a device administrator when the device password is expiring. | |||||||||
| String | ACTION_PASSWORD_FAILED | Action sent to a device administrator when the user has failed at attempted to enter the password. | |||||||||
| String | ACTION_PASSWORD_SUCCEEDED | Action sent to a device administrator when the user has successfully entered their password, after failing one or more times. | |||||||||
| String | DEVICE_ADMIN_META_DATA | Name under which a DevicePolicy component publishes information about itself. | |||||||||
| String | EXTRA_DISABLE_WARNING | A CharSequence that can be shown to the user informing them of the impact of disabling your admin. | |||||||||
| Public Constructors | |||||||||||
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| Public Methods | |||||||||||
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Retrieve the DevicePolicyManager interface for this administrator to work with the system.
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Retrieve the ComponentName describing who this device administrator is, for use in
DevicePolicyManager APIs that require the administrator to identify itself.
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Called when the user has asked to disable the administrator, as a result of receiving
ACTION_DEVICE_ADMIN_DISABLE_REQUESTED, giving you a chance to present a warning message to them.
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Called prior to the administrator being disabled, as a result of receiving
ACTION_DEVICE_ADMIN_DISABLED.
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Called after the administrator is first enabled, as a result of receiving
ACTION_DEVICE_ADMIN_ENABLED.
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Called after the user has changed their password, as a result of receiving
ACTION_PASSWORD_CHANGED.
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Called periodically when the password is about to expire or has expired.
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Called after the user has failed at entering their current password, as a result of receiving
ACTION_PASSWORD_FAILED.
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Called after the user has succeeded at entering their current password, as a result of receiving
ACTION_PASSWORD_SUCCEEDED.
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Intercept standard device administrator broadcasts.
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Inherited Methods
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 From class android.content.BroadcastReceiver
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| From class java.lang.Object
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Action sent to a device administrator when the user has disabled it. Upon return, the application no longer has access to the protected device policy manager APIs. You will generally handle this in onDisabled(Context, Intent). Note that this action will be sent the receiver regardless of whether it is explicitly listed in its intent filter.
Action sent to a device administrator when the user has requested to disable it, but before this has actually been done. This gives you a chance to supply a message to the user about the impact of disabling your admin, by setting the extra field EXTRA_DISABLE_WARNING in the result Intent. If not set, no warning will be displayed. If set, the given text will be shown to the user before they disable your admin.
This is the primary action that a device administrator must implement to be allowed to manage a device. This will be set to the receiver when the user enables it for administration. You will generally handle this in onEnabled(Context, Intent). To be supported, the receiver must also require the BIND_DEVICE_ADMIN permission so that other applications can not abuse it.
Action sent to a device administrator when the user has changed the password of their device. You can at this point check the characteristics of the new password with DevicePolicyManager.isActivePasswordSufficient(). You will generally handle this in onPasswordChanged(Context, Intent).
The calling device admin must have requested USES_POLICY_LIMIT_PASSWORD to receive this broadcast.
Action periodically sent to a device administrator when the device password is expiring.
The calling device admin must have requested USES_POLICY_EXPIRE_PASSWORD to receive this broadcast.
Action sent to a device administrator when the user has failed at attempted to enter the password. You can at this point check the number of failed password attempts there have been with DevicePolicyManager.getCurrentFailedPasswordAttempts(). You will generally handle this in onPasswordFailed(Context, Intent).
The calling device admin must have requested USES_POLICY_WATCH_LOGIN to receive this broadcast.
Action sent to a device administrator when the user has successfully entered their password, after failing one or more times.
The calling device admin must have requested USES_POLICY_WATCH_LOGIN to receive this broadcast.
Name under which a DevicePolicy component publishes information about itself. This meta-data must reference an XML resource containing a device-admin tag. XXX TO DO: describe syntax.
A CharSequence that can be shown to the user informing them of the impact of disabling your admin.
Retrieve the DevicePolicyManager interface for this administrator to work with the system.
Retrieve the ComponentName describing who this device administrator is, for use in DevicePolicyManager APIs that require the administrator to identify itself.
Called when the user has asked to disable the administrator, as a result of receiving ACTION_DEVICE_ADMIN_DISABLE_REQUESTED, giving you a chance to present a warning message to them. The message is returned as the result; if null is returned (the default implementation), no message will be displayed.
| context | The running context as per onReceive(Context, Intent). |
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| intent | The received intent as per onReceive(Context, Intent). |
Called prior to the administrator being disabled, as a result of receiving ACTION_DEVICE_ADMIN_DISABLED. Upon return, you can no longer use the protected parts of the DevicePolicyManager API.
| context | The running context as per onReceive(Context, Intent). |
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| intent | The received intent as per onReceive(Context, Intent). |
Called after the administrator is first enabled, as a result of receiving ACTION_DEVICE_ADMIN_ENABLED. At this point you can use DevicePolicyManager to set your desired policies.
| context | The running context as per onReceive(Context, Intent). |
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| intent | The received intent as per onReceive(Context, Intent). |
Called after the user has changed their password, as a result of receiving ACTION_PASSWORD_CHANGED. At this point you can use DevicePolicyManager.getCurrentFailedPasswordAttempts() to retrieve the active password characteristics.
| context | The running context as per onReceive(Context, Intent). |
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| intent | The received intent as per onReceive(Context, Intent). |
Called periodically when the password is about to expire or has expired. It will typically be called at these times: on device boot, once per day before the password expires, and at the time when the password expires.
If the password is not updated by the user, this method will continue to be called once per day until the password is changed or the device admin disables password expiration.
The admin will typically post a notification requesting the user to change their password in response to this call. The actual password expiration time can be obtained by calling getPasswordExpiration(ComponentName)
The admin should be sure to take down any notifications it posted in response to this call when it receives onPasswordChanged(Context, Intent).
| context | The running context as per onReceive(Context, Intent). |
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| intent | The received intent as per onReceive(Context, Intent). |
Called after the user has failed at entering their current password, as a result of receiving ACTION_PASSWORD_FAILED. At this point you can use DevicePolicyManager to retrieve the number of failed password attempts.
| context | The running context as per onReceive(Context, Intent). |
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| intent | The received intent as per onReceive(Context, Intent). |
Called after the user has succeeded at entering their current password, as a result of receiving ACTION_PASSWORD_SUCCEEDED. This will only be received the first time they succeed after having previously failed.
| context | The running context as per onReceive(Context, Intent). |
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| intent | The received intent as per onReceive(Context, Intent). |
Intercept standard device administrator broadcasts. Implementations should not override this method; it is better to implement the convenience callbacks for each action.
| context | The Context in which the receiver is running. |
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| intent | The Intent being received. |