how to zoom in and zoom out an image on clicking button in iphone -


i have image in imageview placed in scrollview., zoom in , out performed on pinches,

now, want zoom in , out on clicking buttons placed zoom in , zoom out.

how it? there option? if knows please tell me.

thanks in advance.

you can set zoom scale of scroll view programatically based on tap of button. simple implementation:

- (ibaction)zoomin:(id)sender {     if(scrollview.zoomscale < scrollview.maximumzoomscale) {         scrollview.zoomscale = (scrollview.zoomscale + 0.1);     } }   - (ibaction)zoomout:(id)sender {     if(scrollview.zoomscale > scrollview.minimumzoomscale) {         scrollview.zoomscale = (scrollview.zoomscale - 0.1);     } }

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