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Using UIImageView | CodePath iOS Cliffnotes. Whenever you want an image in a view controller, you use a UIImageView. A UIImageView contains a UIImage, which is the raw bitmap, and allows you to configure how you want to scale or crop the image. Step 1: Add the UIImageView to the view controller.
16 lut 2016 · 1. i have used following code but doesn't worked for me. UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(markerView.bounds.size.width/10, markerView.bounds.size.height/4, markerView.bounds.size.width*4/5, markerView.bounds.size.height/1.5)];
Fresco is a powerful library for displaying images in Android, supporting applications all the way back to GingerBread (API 9). It downloads and caches remote images in a memory efficient manner, using a special region of non-garbage collected memory on Android called ashmem.
The built-in UIImageView works great when the image is locally available, but doesn't have great support when the image needs to be downloaded over the network. This is where AFNetworking comes in handy. The following steps walk through how to pull in and use AFNetworking for working with images over the network.
For example, to create an image view, do the following: var frame = CGRect(x: 0, y: 0, width: 100, height: 100) var imageView = UIImageView(frame: frame) imageView.image = UIImage(named: "smiley_face") imageView.isUserInteractionEnabled = true.
Displaying images is easiest using a third party library such as Picasso from Square which will download and cache remote images and abstract the complexity behind an easy to use DSL. Before Using Picasso , do not forget to add internet permission in the manifest file .
This view takes care of the loading and optimizing of the image, freeing you to focus on app-specific details like the layout and content. In this guide, we will take a look at how to use an ImageView, how to manipulate bitmaps, learn about the different density folders and more.
