This is what I have for my image modal with no header and pinch to zoom.
<ion-modal-view class="image-modal" ng-click="closeImgModal()">
<ion-scroll zooming="true"
direction="xy"
delegate-handle="zoom-pane"
class="zoom-pane"
min-zoom="1"
scrollbar-x="false"
scrollbar-y="false"
overflow-scroll="false">
<img ng-src="{{imageSrc}}" >
</ion-scroll>
</ion-modal-view>
and here is my css:
/* full screen image zoom pane */
.zoom-pane {
width: 100% !important;
height: 100% !important;
}
.zoom-pane .scroll {
min-height: 100% !important;
display: -webkit-box;
display: -moz-box;
display: -ms-flexbox;
display: -webkit-flex;
display: flex;
-webkit-box-direction: normal;
-moz-box-direction: normal;
-webkit-box-orient: horizontal;
-moz-box-orient: horizontal;
-webkit-flex-direction: row;
-ms-flex-direction: row;
flex-direction: row;
-webkit-flex-wrap: nowrap;
-ms-flex-wrap: nowrap;
flex-wrap: nowrap;
-webkit-box-pack: center;
-moz-box-pack: center;
-webkit-justify-content: center;
-ms-flex-pack: center;
justify-content: center;
-webkit-align-content: stretch;
-ms-flex-line-pack: stretch;
align-content: stretch;
-webkit-box-align: center;
-moz-box-align: center;
-webkit-align-items: center;
-ms-flex-align: center;
align-items: center;
}
.zoom-pane img {
width: 100% !important;
vertical-align: middle !important;
}
.image-modal {
width: 100% !important;
height: 100% !important;
top: 0 !important;
left: 0 !important;
background: black !important;
}