Abstract: This application relates to the field of human-computer interaction, and provides a virtual keyboard processing method. The method is applied to an electronic device, where the electronic device is provided with a display. The method includes: selecting, in response to a detected first gesture operation, a first type of virtual keyboard corresponding to the first gesture operation from a plurality of types of virtual keyboards, where virtual keys included in different types of virtual keyboards in the plurality of types of virtual keyboards are not completely the same; and displaying the first type of virtual keyboard by using the display. More virtual keys are provided for a user by different types of virtual keyboards. This improves flexibility of a process in which the user enables the virtual keyboard, and helps provide more abundant virtual keys, so that an additional physical keyboard does not need to be provided.

Abstract: An embodiment provides a feedback method, applied to an electronic device provided with a touchscreen. The touchscreen is provided with a plurality of vibration feedback elements. The method includes detecting a first contact operation acting on the touchscreen, and obtaining first location information of a first contact point corresponding to the first contact operation, where the first location information corresponds to a first virtual key on a virtual keyboard. The method also includes if the first virtual key is an anchor point key, obtaining, from the plurality of vibration feedback elements, a first vibration feedback element that matches the first virtual key, and indicating the first vibration feedback element to emit a vibration wave, to prompt that the first virtual key is an anchor point key, so that the user can sense a location of the anchor point key. This can reduce difficulty in implementing touch typing on the touchscreen.

Abstract: A method, a feedback-enabled device and a computer-readable memory are provided, for generating haptic feedback. The actuators of a tactile surface are vibrated for producing vibration bursts based on a sequence of an adaptive friction grain signal. The adaptive friction grain signal comprises a plurality of grains corresponding to the vibration bursts, each grain being defined by an amplitude. The adaptive friction grain signal has a grain density that is variable over the sequence.

Abstract: Systems and methods for generating pseudo haptic feedback for a virtual widget are disclosed. The method includes computing, from a force profile of the virtual widget, a virtual displacement value based on a force value and a type of the virtual widget. The force profile describes a user's perception of physical characteristics of the virtual widget. The method generates a visual haptic feedback based on the virtual displacement value and the type of the virtual widget. Further, in response to the force value, the method may display on a display screen the visual haptic feedback.

Abstract: Systems and methods for generating pseudo haptic feedback for a virtual widget are disclosed. The method includes computing, from a force profile of the virtual widget, a virtual displacement value based on a force value and a type of the virtual widget. The force profile describes a user's perception of physical characteristics of the virtual widget. The method generates a visual haptic feedback based on the virtual displacement value and the type of the virtual widget. Further, in response to the force value, the method may display on a display screen the visual haptic feedback.

Abstract: A method, a feedback-enabled device and a computer-readable memory are provided, for generating haptic feedback. The actuators of a tactile surface are vibrated for producing vibration bursts based on a sequence of an adaptive friction grain signal. The adaptive friction grain signal comprises a plurality of grains corresponding to the vibration bursts, each grain being defined by an amplitude. The adaptive friction grain signal has a grain density that is variable over the sequence.