imageview

问题 I have a requirement where, i am sending a json file to the server and the parsing happens at the server side. I have created the entries to the json file, now i want to store an image stored in imageview as an entry to the json file. Searched several previous posts but could not find exactly what to do. Any pointers would be of great help for storing the image in json format for sending through server. 回答1: If you want to include Image in a JSON object which you will be sending in a request,

问题 How do I resize the imageView? Xcode says initialisation of imageView was never used. func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") let city = nicosiaPlaces [indexPath.row] cell?.textLabel?.text = city let imageView = CGSize(width: 100, height: 100) cell?.imageView?.image = UIImage(named: city) return cell! } 回答1: You just create a new CGSize every time when the method is called

问题 is it possible to get the src Value of an ImageView as URI? Help would be great 回答1: No. By the time the ImageView has the image, the source of that image is long gone. 回答2: If you know what image it is in your drawable, you can do something like this. String path = Uri.parse("android.resource://my.package.name/" + R.drawable.myimage).toString(); More info - https://stackoverflow.com/a/28505621/2197529 来源： https://stackoverflow.com/questions/37013437/can-i-get-the-src-uri-from-an-imageview

问题 I need to create a custom cell in which there will be a imageview of maximum size 100 X 100. but if image is not there then its(ImageView) height should be 0. How to specify constraint for this in xib ? In first Image there is no image so two button (heart and comment) should automatically goes up(just below hello message). 来源： https://stackoverflow.com/questions/30896856/simageview-in-custom-uitableviewcell

问题 I'm doing one demo of getting Image URLs through JSON and after getting the ULR I'm downloading that images and display them into the GridView . For storing downloaded images I'm using Bitmap array and passing it to ImageAdapter . And now I want to display that images on next activity on ImageView for that I'm using following code in second activity.. // get intent data Intent i = getIntent(); // Selected image id int position = i.getExtras().getInt("id"); ImageAdapter imageAdapter = new

问题 I'm quite new to android programming and I stumbled upon a problem with my layout . At first, I had a Linearlayout with a textview , 2 buttons and a imageview scaled to fit the screen. Now I wanted to put this under a scrollview , so the imageview could be scaled larger (to the width of the screen). Without the scrollview everything just went fine, but with the scrollview , my imageview is not scaled anymore. What am I doing wrong ? I tried numerous solutions on StackOverflow but I can't get

问题 There is a gridview in which I want to display a image. I want to use this json below to diplay image in my gridview. I have an ImageAdapter class in ImageAdapter class I have AsynTask that get json but I don't know how to using it to diplaly image in gridview. How can I display image using this json? {"countries":[{"id":"1","first_name":"man","last_name":"woman","username":"man","password":"4f70432e636970de9929bcc6f1b72412","email":"man@gmail.com","photo":"http:\/\/vulcan.wr.usgs.gov\/Imgs\

问题 (Xamarin with Visual Studio 2015 ) I want to implement a simple Activity inwith an Imageview, which can be moved/dragged with touch: This is what I have implemented, but the Image is flickering and moving slower. Can you give me an example how to implement this? Thanks for your help! private void TouchMeImageViewOnTouch(object sender, View.TouchEventArgs touchEventArgs) { View bild = (View)sender; RelativeLayout.LayoutParams layouti = (RelativeLayout.LayoutParams)bild.LayoutParameters; switch

问题 I have this layout that I want to use as a header for navigation bar: <?xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="164dp"> <ImageView android:id="@+id/app_icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android

问题 I tried to programm a windmill with rotating rotor/head. The stem itself is fixed and drawn as a background onto a canvas (javafx). The rotor/head itself is another image. I thought I could rotate the image itself and draw it onto the graphicscontext. (Didn't work) Then I tried various things: a. Drawing the image onto another canvas, rotate the canvas, make a snapshot of that canvas. (Didn't work) b. Make an imageview, rotate the imageview, snapshot it and draw it (Didn't work) and c. I