Thank for replies. I had one dynamic layer and than added into two and more layer different name. For example, NSURL* urldynamic1 = [NSURL URLWithString:URL1]; dynamicLayer1 = [AGSDynamicMapServiceLayer dynamicMapServiceLayerWithURL: urldynamic1]; [self.mapView addMapLayer:dynamicLayer1 withName:Name1]; NSURL* urldynamic2 = [NSURL URLWithString:URL2]; dynamicLayer2 = [AGSDynamicMapServiceLayer dynamicMapServiceLayerWithURL: urldynamic2]; [self.mapView addMapLayer:dynamicLayer2 withName:Name2]; just changing the opacity of the recently added layers.
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