Android. invalidate (), android. invalidate

Android. invalidate (), android. invalidate

Invalidate () invalidates the entire widget and causes the re-painting Control (inherited from the Control .)

Invalidate (Region) invalidates the specified area of the control (add it to the update area of the control, and re-draw the update area next time during the painting operation), and sends a draw message to the control. (Inherited from Control .)

Invalidate (Boolean) invalidates a specific area of the Control and sends a draw message to the control. The sub-control assigned to the control is invalid. (Inherited from Control .)

Invalidate (Rectangle) invalidates the specified area of the control (add it to the update area of the control, and re-draw the update area next time during the painting operation), and sends a draw message to the control. (Inherited from Control .)

Invalidate (Region, Boolean) invalidates the specified area of the control (add it to the update area of the control, and re-draw the update area next time during the painting operation), and sends a draw message to the control. The sub-control assigned to the control is invalid. (Inherited from Control .)

Invalidate (Rectangle, Boolean) invalidates the specified area of the control (add it to the update area of the Control and re-draw the update area next time), and sends a draw message to the control. The sub-control assigned to the control is invalid. (Inherited from Control .)