iOS Touch-screen event guide

This article mainly gives you a summary of 2 ways to implement the iOS touch-screen event, simple and practical, the need for small partners can refer to.

The code is as follows:

Inside a function (initialization, etc.), add the scope to identify the touch event

Infoview=[[uiview Alloc] Initwithframe:cgrectmake (20, 100,220, 280)];//range, out of this range will not detect the touch of

Infoview.backgroundcolor=[uicolor Bluecolor];

infoview.alpha=0.6;

[Self.view Addsubview:infoview];

/****************** surveillance gesture control *****************///have up and down, I only used to the left and right, up and down.

Uiswipegesturerecognizer *recognizer;

recognizer = [[Uiswipegesturerecognizer alloc] initwithtarget:self action: @selector (Handleswipefrom:)];

[Recognizer Setdirection: (uiswipegesturerecognizerdirectionright)];

[InfoView Addgesturerecognizer:recognizer];

recognizer = [[Uiswipegesturerecognizer alloc] initwithtarget:self action: @selector (Handleswipefrom:)];

[Recognizer Setdirection: (Uiswipegesturerecognizerdirectionup)];

[Self.view Addgesturerecognizer:recognizer];

recognizer = [[Uiswipegesturerecognizer alloc] initwithtarget:self action: @selector (Handleswipefrom:)];

[Recognizer Setdirection: (Uiswipegesturerecognizerdirectiondown)];

[Self.view Addgesturerecognizer:recognizer];

recognizer = [[Uiswipegesturerecognizer alloc] initwithtarget:self action: @selector (Handleswipefrom:)];

[Recognizer Setdirection: (Uiswipegesturerecognizerdirectionleft)];

[InfoView Addgesturerecognizer:recognizer];

realization function of touch event

Sliding Event 1

-(void) Handleswipefrom: (Uiswipegesturerecognizer *) recognizer{

If you slide to the left,

if (recognizer.direction==uiswipegesturerecognizerdirectionleft) {

NSLog (@ "**************** slide **************** to the left");

}

If you slide right

if (recognizer.direction==uiswipegesturerecognizerdirectionright) {

NSLog (@ "**************** right sliding ****************");

}

if (Recognizer.direction==uiswipegesturerecognizerdirectiondown) {

NSLog (@ "**************** to slide ****************");

}

if (recognizer.direction==uiswipegesturerecognizerdirectionup) {

NSLog (@ "**************** upward sliding ****************");

}

}

Method Two:

The code is as follows:

Gseventrecord header;

Gshardwarekeyinfo key = {0,0,0,0,1,{' a '},1,{' a '},0,0,0,0};

memset (&header, 0, sizeof (header));

Header.type = Kgseventkeydown;

header.infosize = sizeof (Gshardwarekeyinfo);

Header.timestamp = Mach_absolute_time ();

struct

{

Gseventrecord Header1;

Gshardwarekeyinfo Key1;

}fuck = {header, key};

Gssendevent (&fuck, Gsgetpurpleapplicationport ());

Gseventrecord header;

Gshardwarekeyinfo key = {0,0,0,0,1,{' a '},1,{' a '},0,0,0,0};

memset (&header, 0, sizeof (header));

Header.type = Kgseventkeydown;

header.infosize = sizeof (Gshardwarekeyinfo);

Header.timestamp = Mach_absolute_time ();

struct

{

Gseventrecord Header1;

Gshardwarekeyinfo Key1;

}fuck = {header, key};

Gssendevent (&fuck, Gsgetpurpleapplicationport ());

The above mentioned is the entire content of this article, I hope you can enjoy.