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com.iristick.smartglass.support.camera2

Class CameraManager.TorchCallback

  • java.lang.Object
    • com.iristick.smartglass.support.camera2.CameraManager.TorchCallback
Enclosing class:
CameraManager

public abstract static class CameraManager.TorchCallback
extends Object
A callback for camera flash torch modes becoming unavailable, disabled, or enabled.

The torch mode becomes unavailable when the camera device it belongs to becomes unavailable or other camera resources it needs become busy due to other higher priority camera activities. The torch mode becomes disabled when it was turned off or when the camera device it belongs to is no longer in use and other camera resources it needs are no longer busy. A camera's torch mode is turned off when an application calls CameraManager.setTorchMode(java.lang.String, boolean) to turn off the camera's torch mode, or when an application turns on another camera's torch mode if keeping multiple torch modes on simultaneously is not supported. The torch mode becomes enabled when it is turned on via CameraManager.setTorchMode(java.lang.String, boolean).

The torch mode is available to set via CameraManager.setTorchMode(java.lang.String, boolean) only when it's in a disabled or enabled state.

Extend this callback and pass an instance of the subclass to CameraManager.registerTorchCallback(com.iristick.smartglass.support.camera2.CameraManager.TorchCallback, android.os.Handler) to be notified of such status changes.

See Also:
CameraManager.registerTorchCallback(com.iristick.smartglass.support.camera2.CameraManager.TorchCallback, android.os.Handler)

Constructor Summary

Constructor and Description
TorchCallback() 

Method Summary

Modifier and Type Method and Description
void onTorchModeChanged(String cameraId, boolean enabled)
A camera's torch mode has become enabled or disabled and can be changed via CameraManager.setTorchMode(java.lang.String, boolean).
void onTorchModeUnavailable(String cameraId)
A camera's torch mode has become unavailable to set via CameraManager.setTorchMode(java.lang.String, boolean).

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TorchCallback

public TorchCallback()

Method Detail

onTorchModeUnavailable

public void onTorchModeUnavailable(String cameraId)
A camera's torch mode has become unavailable to set via CameraManager.setTorchMode(java.lang.String, boolean).

If torch mode was previously turned on by calling CameraManager.setTorchMode(java.lang.String, boolean), it will be turned off before onTorchModeUnavailable(java.lang.String) is invoked. CameraManager.setTorchMode(java.lang.String, boolean) will fail until the torch mode has entered a disabled or enabled state again.

The default implementation of this method does nothing.

Parameters:
cameraId - The unique identifier of the camera whose torch mode has become unavailable.

onTorchModeChanged

public void onTorchModeChanged(String cameraId,
                               boolean enabled)
A camera's torch mode has become enabled or disabled and can be changed via CameraManager.setTorchMode(java.lang.String, boolean).

The default implementation of this method does nothing.

Parameters:
cameraId - The unique identifier of the camera whose torch mode has been changed.
enabled - The state that the torch mode of the camera has been changed to. true when the torch mode has become on and available to be turned off. false when the torch mode has becomes off and available to be turned on.