android-imageview

问题 I am Trying to download an Image into an ImageView by using the Volley Library. I inject the response of the Volley Library into the ImageView, but I am not getting the desired result. Please check my code and suggest where I can make the changes to get the desired result. public class MainActivity extends AppCompatActivity { Button response_click; TextView text_response; RequestQueue requestQueue; ImageView image_download; String server_url="https://upload.wikimedia.org/wikipedia/commons

问题 Hello Stackoverflow friendo's. I'm just wondering if someone can assist me. I've created an app which holds a lot of images, the images are currently pretty small but I want them to expand once they're clicked. Is there any way of doing this? My app holds about 50 xml and the same in classes. But it holds about 100 images, is there any simple way to do this? An example of my XML <?xml version="1.0" encoding="utf-8"?> <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"

问题 I am working on a App that is simple in work and it is working quite efficiently. But I have one place where I am looking something is not looking great and that is flipping Animation. What I Want : I have a Button and a ImageView beneath the button. On a Button click I want to make a Animation that it looks like ImageView has flipped and next image is shown in the ImageView. So on every click it should show next image with a flipping animation but there are some problems. I would discuss

问题 I want to set the gravity of an array of Imageviews,ImageIcons[i] to the center with the following code, ImageIcons[i] = new ImageView(this); ImageIcons[i].setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); layout.addView(ImageIcons[i]); And I am stuck up while setting the gravity.I request the SO people to guide me on this. Thanks 回答1: Try this LinearLayout.LayoutParams layoutParams=new LinearLayout.LayoutParams(width, height); layoutParams.gravity

问题 I have an Imageview which is zoomed and rotated(I have used multitouch zooming ). So how can i get bitmap of only visible content(I mean when i zoom the image , The part of the bitmap may go out of the screen. So, what i want is the bitmap that is visible on the screen). So is there any built in feature in api to create a small bitmap from a big one? or Is there any function to crop the image using x,y coordinates? actually i want the zoomed or rotated part to go to the next activity 回答1: If

问题 I'd like to Save an Image to the Android Gallery, here's my current code: image.setDrawingCacheEnabled(true); image.buildDrawingCache(true); Bitmap b = image.getDrawingCache(); if(!new File("/"+Environment.DIRECTORY_PICTURES).exists()) Log.e("Error","/"+Environment.DIRECTORY_PICTURES+" Dont exist"); File file = new File(Environment.DIRECTORY_PICTURES+"/myImage.jpg"); file.createNewFile(); FileOutputStream ostream = new FileOutputStream(file); b.compress(CompressFormat.JPEG, 80, ostream);

问题 I want to save my bitmap to cache directory. I use this code: try { File file_d = new File(dir+"screenshot.jpg"); @SuppressWarnings("unused") boolean deleted = file_d.delete(); } catch (Exception e) { // TODO: handle exception } imagePath = new File(dir+"screenshot.jpg"); FileOutputStream fos; try { fos = new FileOutputStream(imagePath); bitmap.compress(CompressFormat.JPEG, 100, fos); fos.flush(); fos.close(); } catch (FileNotFoundException e) { Log.e("GREC", e.getMessage(), e); } catch

问题 I have created a circular ImageView , but I need to add a border outside the image. Here is the code: Bitmap circleBitmap = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888); BitmapShader shader = new BitmapShader (bitmap, TileMode.CLAMP, TileMode.CLAMP); Paint paint = new Paint(); paint.setShader(shader); paint.setAntiAlias(true); paint.setFilterBitmap(true); paint.setDither(true); paint.setColor(Color.parseColor("#BAB399")); Canvas c = new Canvas(circleBitmap); c.drawARGB(0, 0, 0, 0);

问题 I'm working with the library KenBurnsView and I have a problem: the overview or this nice library says the following: "Highly extensible: you can define how the rectangles to be zoomed and panned will be generated" and that's exactly what I want to do but I don't know exactly how. I would like to be able to tell the library to zoom or pan from a specified region (a RectF I presume) of my image. I think I have to implements my own TransitionGenerator and write a custom generateNextTransition()

问题 I'm working with the library KenBurnsView and I have a problem: the overview or this nice library says the following: "Highly extensible: you can define how the rectangles to be zoomed and panned will be generated" and that's exactly what I want to do but I don't know exactly how. I would like to be able to tell the library to zoom or pan from a specified region (a RectF I presume) of my image. I think I have to implements my own TransitionGenerator and write a custom generateNextTransition()