Slide unlocking method for touchscreen device under screen locking state

A slide unlocking method for a touchscreen device under a screen locking state, comprising steps of:

• sampling a track generated by the sliding of a user's finger on a touchscreen, and sequentially acquiring a plurality of sampling points, each sampling point having an x-axis coordinate value and a y-axis coordinate value;
• acquiring a first sampling point and a last sampling point of the track, calculating a transverse sliding distance of the finger on the touchscreen by subtracting the x-axis coordinate value of the last sampling point and the x-axis coordinate value of the first sampling point from one another and calculating its absolute value, and calculating a longitudinal sliding distance of the finger on the touchscreen by subtracting the y-axis coordinate value of the last sampling point and the y-axis coordinate value of the first sampling point from one another and calculating its absolute value;
• and
• unlocking the touchscreen when the transverse sliding distance is greater than or equal to a first preset distance D1 and the longitudinal sliding distance is less than or equal to a second preset distance D2, and keeping the touchscreen in the screen locking state and showing a prompt for unlocking the touchscreen when the transverse sliding distance is less than the first preset distance D1 or the longitudinal sliding distance is greater than the second preset distance D2.

A slide unlocking method for a touchscreen device under a screen locking state, comprising steps of:

• sampling a track generated by the sliding of a user's finger on a touchscreen, and sequentially acquiring a plurality of sampling points, each sampling point having an x-axis coordinate value and a y-axis coordinate value;
• acquiring a first sampling point and a last sampling point of the track, calculating a transverse sliding distance of the finger on the touchscreen by subtracting the x-axis coordinate value of the last sampling point and the x-axis coordinate value of the first sampling point from one another and calculating its absolute value, and calculating a longitudinal sliding distance of the finger on the touchscreen by subtracting the y-axis coordinate value of the last sampling point and the y-axis coordinate value of the first sampling point from one another and calculating its absolute value;
• and
• unlocking the touchscreen when the longitudinal sliding distance is greater than or equal to a third preset distance D3 and the transverse sliding distance is less than or equal to a fourth preset distance D4, and keeping the touchscreen in the screen locking state and showing a prompt for unlocking the touchscreen when the longitudinal sliding distance is less than the third preset distance D3 or the transverse sliding distance is greater than the fourth preset distance D4.

A slide unlocking method for a touchscreen device under a screen locking state, comprising steps of:

• sampling a track generated by sliding of a user's finger on a touchscreen and sequentially acquiring a plurality of sampling points;
• calculating a transverse sliding distance of the finger on the touchscreen by using the sampling points;
• calculating a longitudinal sliding distance of the finger on the touchscreen by using the sampling points;
• and
• unlocking the touchscreen when the transverse sliding distance is greater than or equal to a first preset distance D1 and the longitudinal sliding distance is less than or equal to a second preset distance D2, and keeping the touchscreen in the screen locking state and showing a prompt for unlocking the touchscreen when the transverse sliding distance is less than the first preset distance D1 or the longitudinal sliding distance is greater than the second preset distance D2.