Research on pulley controls v. Brief Introduction to viewconfiguration

/*** Contains methods and standard constants used to set the UI timeout, size, and distance */public class viewconfiguration {// sets the width of the horizontal scroll bar and the height of the vertical scroll bar, the Unit is pixel PX Private Static final int scroll_bar_size = 10; // defines the time when the scroll bar gradually disappears, in milliseconds Private Static final int scroll_bar_fade_duration = 250; // The default number of seconds after the scroll bar disappears. Unit: Private Static final int scroll_bar_default_delay = 300; // defines the length of Private Static final int fading_edge_length = 12; // define the continuous event Private Static of the sub-control press status Final int pressed_state_duration = 125; // defines a time when the status is changed. Private Static final int long_press_timeout = 500; // defines that the user is holding down the appropriate button, the duration of the global pop-up dialog box is Private Static final int global_actions_key_timeout = 500; // defines the time required for clicking an event or sliding event in a touch event, if the user slides within this time period, it is considered as a click event Private Static final int tap_timeout = 115; /*** defines the duration in milliseconds we will wait to see if a touch event * is a jump tap. If the user does not complete the jump tap within this interval, it is * considered to be a tap. * // when defining a touch event, it is a click event. If the user does not complete the click within this time period, it is considered as a click event Private Static final int jump_tap_timeout = 500; // define the interval for double-click events Private Static final int double_tap_timeout = 300; // define the time for a scaling control to feedback to the user interface Private Static final int zoom_controls_timeout = 3000; /*** inset in pixels to look for touchable content when the user touches the edge of the screen */Private Static final int edge_slop = 12; /*** distance a touch can wander befo Re we think the user is scrolling in pixels */Private Static final int touch_slop = 16; /*** distance a touch can wander before we think the user is attempting a paged scroll * (in dips) */Private Static final int paging_touch_slop = touch_slop * 2; /*** distance between the first touch and second touch to still be considered a double tap */Private Static final int double_tap_slop = 100 ;/** * Distance a touch needs to be outside of a window's Bounds for it to * count as outside for purposes of dismissing the window. */Private Static final int window_touch_slop = 16; // minimum fling initialization speed. The unit is the number of pixels per second. Private Static final int minimum_fling_velocity = 50; // It is used to initialize the maximum fling speed. The unit is the number of pixels per second. Private Static final int maximum_fling_velocity = 4000; // The maximum size of the View Drawing cache, in bytes. In argb888 format, this size should be at least equal to the screen size @ deprecated Private Static final int maximum_drawing_cache_size = 320*480*4; // hvga screen, argb8888 // coefficient of friction strength between flings and scrolls: Private Static float scroll_friction = 0.015f;/*** max distance to over scroll for edge effects */Private Static final int overscroll_distance = 0; /*** max distance to over fling for edge effects */Private Static final int overfling_distance = 4 ;}