iphone - How to implement two separate UIScrollViews with nested UIImageViews...only one is zooming -

-

ok, have been working on solving problem day, , getting close. trying have create way view more 1 scrollview/imageview nested pair allows zooming on image.

when view loads, there 1 scrollview takes whole screen, when button pressed, cut width of first scrollview in half, , unhide (which has nested imageview in well) right next it. there split view effect, , ideally user able pinch , zoom each image separately.

so have working except separate pinch , zoom part. no matter pinch on screen, first scrollview zooms. though touching scrollview, still affecting first.

i have them setup in ib, , setup in viewdidload way:

[scrollview setbackgroundcolor:[uicolor blackcolor]]; [scrollview setcancancelcontenttouches:no]; scrollview.clipstobounds = yes;    // default no, want restrict drawing within our scrollview scrollview.indicatorstyle = uiscrollviewindicatorstylewhite;  scrollview.minimumzoomscale = 1; scrollview.maximumzoomscale = 5; scrollview.delegate = self; [scrollview setscrollenabled:yes];  imageview3 = [[uiimageview alloc] initwithimage:[uiimage imagenamed:@"monitor.jpg"]];  [scrollview addsubview:imageview3]; //[scrollview setframe:cgrectmake(0, 0, 1024, 660)];   [scrollview1 setbackgroundcolor:[uicolor blackcolor]]; [scrollview1 setcancancelcontenttouches:no]; scrollview1.clipstobounds = yes;    // default no, want restrict drawing within our scrollview scrollview1.indicatorstyle = uiscrollviewindicatorstylewhite;  scrollview1.minimumzoomscale = 1; scrollview1.maximumzoomscale = 5; scrollview1.delegate = self; [scrollview1 setscrollenabled:yes];  imageview31 = [[uiimageview alloc] initwithimage:[uiimage imagenamed:@"monitor.jpg"]];  [scrollview1 addsubview:imageview31];

and hide , unhide different scrollviews (i have 40 depending on segmentedcontrol index on toolbar. headed in right direction? possible have 2 separately accessible scrollviews?

any appreciated.

thanks!

edit:

ok went through , updated cliptobunds bit...duh. makes better, still isn't solving problem. here code calling depending on selected index:

-(void) pickedone{   if(segment.selectedsegmentindex == 0){      [scrollview setframe:cgrectmake(0, 0, 1024, 660)];     [scrollview setcontentsize:cgsizemake(1024, 660)];     scrollview.hidden = no;      scrollview1.hidden = yes;     scrollview2.hidden = yes;     scrollview3.hidden = yes;  }else if(segment.selectedsegmentindex == 1){      [scrollview setframe:cgrectmake(0, 0, 512, 660)];     scrollview.zoomscale = 1.0;     scrollview.hidden = no;       [scrollview1 setframe:cgrectmake(512, 0, 512, 660)];     scrollview1.zoomscale = 1.0;     scrollview1.hidden = no;              scrollview2.hidden = yes;             scrollview3.hidden = yes;  }

is there majorly wrong approach?

if pinch zoom on right scrollview, makes scroll view bigger, (but doesn't increase size of scrollview2 image) increase size of first scrollview's image when pinch inside of either scrollviews...strange

scrollview.clipstobounds = no;    // default no, want restrict drawing within our scrollview

isn't opposite of want? setting yes restricts restricts drawing within scrollview.

it sounds me aren't resizing scrollview. resizing contents or image view within it? can post code called when tap button?


Comments

Post a Comment

Popular posts from this blog

c# - How to set Z index when using WPF DrawingContext? -

-
how set z-index drawing object when using drawingcontext.drawxxx() methods? the object drawn last have higher z index. can't change index of drawn objects. way draw in order. if using wpf (as placed tag), can use, example, canvas control. create shapes need like polyline obj = new polyline(); //... // ... set properties of obj and add them canvas uielementcollection: yourcanvasname.children.add(obj); //or yourcanvasname.children.insert(i, obj); first items of collection have higher z index. advantages in way: no need redraw on window changes, can anytime move objects , change order.
Read more

razor - Is this a bug in WebMatrix PageData? -

-
i think may have found bug in webmatrix's pagedata, not sure. concerns how pass data partial page calling page. in webmatrix documentation (tutorials, e.g. " 3 - creating consistent look ", , example code), pagedata recommended mechanism pass data between pages (e.g. content page layout page, or partial page). however have found not work other way, pass data partial page calling page. modifying or adding entries in pagedata in partial page, not seem calling page. cutting right down simplest possible example, in test page may have this: @{ pagedata["test"] = "initial entry"; } <p>before calling partial page, test value @pagedata["test"]</p> @renderpage("_testpartial.cshtml") <p>after returning calling page, test value @pagedata["test"]</p> and in _testpartial.cshtml page might have this: @{ pagedata["test"] = "modified entry"; } <p>in partial page...
Read more

visual c++ - Using relative values in array sorting ( asm ) -

-
i need sort through array , sort each individual row in array in ascending order. doesn't seem going (surprise!) keep getting hit 2 errors: a2101: cannot add 2 relocatable labels , a2026: constant expected here's sort, makes sense me, think i'm still trying implement high-lvl language techniqes assembly. there way around not being able use relative values? (the array 7 rows 9 columns, btw). mov cx, 7; cx = number of rows outer: ; outer loop walk through rows push cx mov cx, 9 mov row, cx ;rows middle: ; middle-loop walk through columns push cx sub cx, 1 ;cx = cx-1 mov column, cx ;columns inner: ;inner loop - compare , exchange column values cmp marray[row*9 + column], marray[row*9 + column+1] xchg marray[row*9 + column+1], marray[row*9 + column] ; compare , exchange values marray table inc column loop inner pop cx loop mid...
Read more