How to use multitouch in Webworks app?

Hello!

After my first problems in the development of the app for BB in Webworks I still made my app. I have to use multitouch now, but I have no idea how. I did find samples with multitouch. I found only this: http://developer.blackberry.com/html5/apis/touchevent.html#targetTouches but I don't know how to use this function. Can you help me?

PS. Sorry for my bad English

And that's that

The following example is an implementation of filling of touch

I decided to leave the bind to the mouse in that it is probably useful to others

It is a living example of an ePub with blow gettures reader and touch

The code is a little complex, so I will answer any other than Gregs Qs

Basically what this did that target an iFrame and control

Anywhere you see a reference to my target frame - ignore it and replace with what you want to do

The hardest things to understand for the novice, here are the angle and the time (both are included)

Without much explain this sets @ high tell the manager what to do

A call to bindtouch (target) does what it says but is native, you must pass the name of the div tag

A binding triggers all important events

Angles and timing are still developing

Timing is crucial if you need one no doubt

Angle is optional and depends on how the finger is moved, but requires a JS call very expensive Math.atan2 (point1, point2)

Basically Angle you indicate where you moved your finger after the first touch so you can probably kill such things

The County touch gets the correct contact and doing what it takes with it based on defines it

Look - I told you it was very complicated

Oh - bind it to the mouse allows you to transfer the call to a mouse event - I thought it might be useful for other readers

The target an iFrmae is also very convenient as it is scrolling

I leave you for that suit your needs

function bindtouch (target) {}
var TOUCH_TAP_DIST = 30;
var TOUCH_TAP_TIME = 150;
var TOUCH_DRAG_DIST = 50;
var TOUCH_DRAG_TIME = 500;
var TOUCH_DRAG_VELOCITY = 50;
var TOUCH_SWIPE_DIST = 50;
var TOUCH_SWIPE_TIME = 500;
var TOUCH_SWIPE_VELOCITY = 75;

var SWIPE_NONE = 0;
var SWIPE_RIGHT = 1;
var SWIPE_UP = 2;
var SWIPE_LEFT = 4;
var SWIPE_DOWN = 8;

var _TOUCH_DRAG_VELOCITY = TOUCH_DRAG_VELOCITY * TOUCH_DRAG_VELOCITY;
    
var touch = [];

var el = target;

function squangle (p1, p2) {}
((p2.y-p1.y) return math.atan2, (p2.x - p1.x));
}

el.addEventListener ('touchend', Function {}
e.preventDefault ();
var TB = e.changedTouches;
for (var i = 0; i)
CTI var is ct [i] .identificateur;.
CTO var = ct [i];
{if (CTO. ClientX)}
Touch [sic] = {sx: cto.clientX,}
SY: cto.clientY,
TX: cto.clientX,
Ty: cto.clientY,
BX: cto.clientX,
by: cto.clientY,
PV: 0,
{TM: e.timeStamp};
var id = "#tch" + ct;
                
evt var = document.createEvent ("MouseEvents");
evt.initMouseEvent ("mousedown", true, true, window,
0, cto.screenX, cto.screenY,.
cto.clientX, cto.clientY, false, false, false, false, 0, null);
e.srcElement.dispatchEvent (evt);
}
}
});

el.addEventListener ('touchmove', Function {}
e.preventDefault ();
var TB = e.changedTouches;
for (var i = 0; i)
CTO var = ct [i];
TCO var = touch [cto.identifier];
var ms = e.timeStamp - tco.tm;
{if (CTO. ClientX)}
TCO. TX = cto.clientX;
TCO. Ty = cto.clientY;
TCO. PV = Math.sqrt (((tco.sx-tco.tx) * (tco.sx - tco.tx)))
+ ((tco.sy-tco.ty) * (tco.sy - tco.ty)));
if(e.touches.Length == 2) {}
dreadful var = e.touches.length;
}
if(e.touches.Length == 1) {}
var dx = Math.abs(tco.bx-tco.sx);
var dy = Math.abs(tco.by-tco.sy);

If (tco.pv< _touch_drag_velocity)="">
If ((smode == SCALE_ZOOM) & (fsize > 1.00)) {}
$(frames['appframe'].document).scrollLeft ($(frames['appframe'].document).scrollLeft () + (tco.sx - tco.tx));
//                            }
EB var = $(frames['appframe'].document);
St var = eb.scrollTop ();
$(frames['appframe'].document).scrollTop (st + (tco.sy - tco.ty));
.SX Touch [i] = e.touches [i] .clientX;
.Sy Touch [i] = e.touches [i] .clientY;
}
}
                
TCO. SX = cto.clientX;
TCO. Sy = cto.clientY;
}
}
});
            
el.addEventListener ('touchstart', Function {}
e.preventDefault ();
var TB = e.changedTouches;
for (var i = 0; i)
CTO var = ct [i];
TCO var = touch [cto.identifier];
var ms = e.timeStamp - tco.tm;
var dx = Math.abs(tco.bx-tco.sx);
var dy = Math.abs(tco.by-tco.sy);
evt var = document.createEvent ("MouseEvents");

If ((dx< touch_tap_dist)="" &&="" (dy="">< touch_tap_dist)="" &&="" (ms=""><= touch_tap_time))="">
evt.initMouseEvent ("click", true, true, window,
0, tco.sx, tco.sy, tco.sx, tco.sy, false, false, false, false, 0, null);
e.srcElement.dispatchEvent (evt);
}
ElseIf (((dx > TOUCH_SWIPE_DIST) |)) (dy > TOUCH_SWIPE_DIST)) & (Mrs.<= touch_swipe_time))="">
if(DX > TOUCH_SWIPE_DIST) {}
If (TCO. BX > TCO. SX) {}
swipex = SWIPE_RIGHT;
}
else {}
swipex = SWIPE_LEFT;
}
}
else {}
swipex = SWIPE_NONE;
}
                    
if(dy > TOUCH_SWIPE_DIST) {}
if(TCO.by > TCO.) SY) {}
swipey = SWIPE_UP;
}
else {}
swipey = SWIPE_DOWN;
}
}
else {}
swipey = SWIPE_NONE;
}
                    
If ((swipey == SWIPE_NONE) & (swipex == SWIPE_RIGHT))
{
switchPage (1);
}
If ((swipey == SWIPE_NONE) & (swipex == SWIPE_LEFT))
{
switchPage(-1);
}

evt.initMouseEvent ("mouseup", true, true, window,
0, tco.sx, tco.sy, tco.sx, tco.sy, false, false, false, false, 0, null);
e.srcElement.dispatchEvent (evt);
}
else {}
evt.initMouseEvent ("mouseup", true, true, window,
0, tco.sx, tco.sy, tco.sx, tco.sy, false, false, false, false, 0, null);
}

}
});
}

Tags: BlackBerry Developers

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