objective c - how to make an object move by touching it in iOS -

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i newbie in objective-c , trying make simple app in when touch object move randomly while , stops. need touch again move again , stop after while.

i have searched touch method , tutorials, problem don't know how start. need function move object , 1 touch it, don't know how connect them , use them.

here tutorial helped me lot view of functionality , function in opposite way of app. still can not start programming on own.

http://xcodenoobies.blogspot.se/2010/11/under-construction.html

any appreciated, regarding how program logic , how find right methods , how find type of variables need.

step 1: put code in viewdidload method, in have created uiimageview , add view randomly

[self.view settag:1]; for(int i=0;i<4;i++) {     int x = arc4random()%300;     int y = arc4random()%400;  #warning set image here      uiimageview *imgview = [[uiimageview alloc] initwithimage:[uiimage imagenamed:@"someimage.png"]];     [imgview setframe:cgrectmake(x, y, 25, 25)];     [imgview setuserinteractionenabled:yes];     [self.view addsubview:imgview]; }

step 2 : define touchbegan method handle touch , move objects around view, have set tag = 1 viewcontroller ,because dont want move our mainview, subviews moved

- (void)touchesbegan:(nsset *)touches withevent:(uievent *)event {     uitouch *touch = [touches anyobject];      if([[touch view] tag] != 1)     {         [uiview animatewithduration:0.25f animations:^{             int x = arc4random()%300;             int y = arc4random()%400;              [[touch view] setcenter:cgpointmake(x, y)];         }];     } }

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