iphone - uiview width is zero -


i added uigesture uiview using following code 

uipinchgesturerecognizer *pinchrecognizer = [[uipinchgesturerecognizer alloc] initwithtarget:self action:@selector(scale:)]; [pinchrecognizer setdelegate:self]; [holderview addgesturerecognizer:pinchrecognizer]; [pinchrecognizer release];

and code of scalling is

    if([(uipinchgesturerecognizer*)sender state] == uigesturerecognizerstateended) {          lastscale = 1.0;         return;     }        cgfloat scale = 1.0 - (lastscale - [(uipinchgesturerecognizer*)sender scale]);      cgaffinetransform currenttransform = [(uipinchgesturerecognizer*)sender view].transform;     cgaffinetransform newtransform = cgaffinetransformscale(currenttransform, scale, scale);      [[(uipinchgesturerecognizer*)sender view] settransform:newtransform];      lastscale = [(uipinchgesturerecognizer*)sender scale];      oldtransform = newtransform;      oldcenter = [(uipinchgesturerecognizer*)sender view].center;

the problem before zooming can width , height of holdview after scaling return 0

i use following code display

nslog(@" rectangle %f , %f ,%f, %f ", holderview.frame.origin.x, holderview.frame.origin.y, holderview.bounds.size.width , holderview.bounds.size.height ) ;

another problem when add subview above values return holderview size origin ,.. become 0 suggestion solve

setting transform of view not change values of frame property. if frame reports width 100, might visually 50, or whatever, due transform.

the reason 0 width of frame because either set 0 @ point, or haven't set yet. need provide default size make view visible.


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