imageview

问题 There's say some ImageView object. I want to read bits/raw data of this object as InputStream. How to do that? 回答1: First get Background image of the imageview as an object of Drawable iv.getBackground(); Then convert Drwable image into bitmap using BitmapDrawable bitDw = ((BitmapDrawable) d); Bitmap bitmap = bitDw.getBitmap(); Now use ByteArrayOutputStream to get the bitmap into the stream and get bytearray[] convert bytearray into ByteArrayInputStream you can use the following code to get

问题 I am trying to open a remote Stream of a JPEG image and convert it into a Bitmap object: BitmapFactory.decodeStream( new URL("http://some.url.to/source/image.jpg") .openStream()); The decoder returns null and in the logs I get the following message: DEBUG/skia(xxxx): --- decoder->decode returned false Note: 1. the content length is non-zero and content type is image/jpeg 2. When I open the URL in browser I can see the image. What is that I am missing here? Please help. Thanks. 回答1: The

问题 I'm looking to add a blur animation to an ImageView , but with a set duration. So, for example I want an image to blur out over time. I already have the method to blur the image, but what I need is to make it go from blur to none blur over, say, 2 seconds. Can anybody help me out? EDIT: This is the method I currently have to blur the image. public Bitmap blur(Bitmap sentBitmap, int radius) { // Stack Blur Algorithm by Mario Klingemann <mario@quasimondo.com> Bitmap bitmap = sentBitmap.copy

问题 Here is a video of the problem: http://youtu.be/Jid0PO2HgcU I have a problem when trying to set the image for the [cell imageView] in a UITableView from the asset library. The image is loaded but it doesn't appear in the cell until I touch (select) that cell. Here is my code that sets the imageView of the cell: //Start loading the image using the image path NSString *path = [occasion imagePath]; if (path != nil && [path hasPrefix:@"ass"]) { NSLog(@"photo loaded from assets library"); /

问题 Here is a video of the problem: http://youtu.be/Jid0PO2HgcU I have a problem when trying to set the image for the [cell imageView] in a UITableView from the asset library. The image is loaded but it doesn't appear in the cell until I touch (select) that cell. Here is my code that sets the imageView of the cell: //Start loading the image using the image path NSString *path = [occasion imagePath]; if (path != nil && [path hasPrefix:@"ass"]) { NSLog(@"photo loaded from assets library"); /

问题 I am trying to make an app where I can let a user select a picture to display on their profile. I am able to browse and set their selected image on imageview. But the image is lost once the the activity is destroyed. I tried to implement onSaveInstanceState but still it's the same. I'm wondering if I am using it correctly. I hope you can help a newbie like me. Thanks in advance. Here's the code that I'm using: public class AccountFragment extends Fragment implements OnClickListener { private

问题 I am trying to make an app where I can let a user select a picture to display on their profile. I am able to browse and set their selected image on imageview. But the image is lost once the the activity is destroyed. I tried to implement onSaveInstanceState but still it's the same. I'm wondering if I am using it correctly. I hope you can help a newbie like me. Thanks in advance. Here's the code that I'm using: public class AccountFragment extends Fragment implements OnClickListener { private

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Is it possible to use BitmapFactory.decodeFile method to decode a image from http location? i have a problem in set url image to image view. i tried below methods Method 1: Bitmap bimage= getBitmapFromURL(bannerpath); image.setImageBitmap(bimage); public static Bitmap getBitmapFromURL(String src) { try { Log.e("src",src); URL url = new URL(src); HttpURLConnection connection = (HttpURLConnection) url

问题 I am using View Pager with fragment to showing image and video, I am able to show image and video properly but I have problem, when I swipe for video, then video is playing, but I swipe next or previous then video is still playing on just next or previous screen but when I move two slide next or previous then video is being stop, but why not on next or previous slide. I search it more but I did not get any solution, any help will be appreciable. Thanks in advance. Here is my code: This is

问题 When a FloatingActionButton is anchored to a CollapsingToolbarLayout, it disappears when you scroll up, reappears when you scroll down after a certain point. I was wondering if you can do that with any type of view. In my app, I'm trying to anchor an ImageView to the CollapsingToolbarLayout but it won't disappear like the FloatingActionButton. Here's the XML code. <android.support.design.widget.AppBarLayout android:id="@+id/bar" android:layout_width="match_parent" android:layout_height="252dp