picture widget android

Objective In Android applications, there are often scenes that need to be used to store pictures on the device, and it's very inconvenient to get directly from the path. So it is generally recommended to call the gallery application of the system, select the picture, and then use it. This blog will explain how to get pictures from the System Gallery in Android.

What is EXIF First to understand what is EXIF. EXIF is an image file format, its data stored in the JPEG format is exactly the same, in fact, the EXIF format is the JPEG format header inserted in the digital photos of information, including shooting aperture, shutter, balance white, ISO, focal length, date and time and so on various and shooting conditions and camera brand, model, Color coding and GPS and so on. In simple terms, exif= takes the parameters +jped. Therefore, you can use any view

In practice, sometimes we need to load a large picture into memory from the SD card, but if your phone storage is very small, if you put this big picture directly into the content will cause the allocation failure and other abnormal problems. So we need a way to load the big picture into memory without the exception.How can I load a large

The previous article about the way to add a border to the picture, only to add some rules to the image of the border, if you want to add some more beautiful effect, it is a bit troublesome. Here is the idea to solve this problem.The idea is: some of the more beautiful lace pictures We are very difficult to control with the code, on the current level is not up to, do not exclude cattle, and then PS those effects are programmers to make, there must be a

In Android development, picture processing is a difficult point. For a lot of picture processing, accidentally will appear oom error. Then, building the cache is a very necessary means. Building the cache with soft references is just one of the steps, let's take a look at the general process of drawing processing.Generally speaking, the process of image processin

Images downloaded on the network adaptive: android:adjustviewbounds= "true" (which is explained in detail below)android:id= "@+id/dynamic_item_image"android:layout_width= "Wrap_content"android:layout_height= "Wrap_content"android:layout_gravity= "Top"android:layout_margintop= "5dip" android:adjustviewbounds= "true" android:background= "@drawable/imageview_background"/>In addition, android:background= "@drawable/imageview_background" is a frame that adds a border to the

IOException */public void Savefi Le (Bitmap BM, String fileName) throws IOException {file Dirfile = new File (Album_path); if (!dirfile.exists ()) {Dirfile.mkdir (); } File Mycapturefile = new file (Album_path + fileName); Bufferedoutputstream BOS = new Bufferedoutputstream (new FileOutputStream (Mycapturefile)); Bm.compress (Bitmap.CompressFormat.JPEG, N, BOS); Bos.flush (); Bos.close (); } private Runnable savefilerunnable = new Runna

code: list Imagebean Imagebean = new Imagebean (); Imagebean.setpath (Mdirpath + "/" + item); try { Imagebean.setbitmap (bimp.revitionimagesize (Mdirpath + "/" + Item); } catch (IOException e) { E.printstacktrace (); } Bimp.tempSelectBitmap.add (Imagebean); msg = new Message (); msg.what=0; AlbumActivity.handler.sendMessage (msg); Here is a note that I encountered a mistake in writing the removal of the

Because the project needs to do screen adaptation, and a lot of original pictures, the original words are from other programs ba La down, and now a lot of their own, so must consider how to do, and to ensure that the layout will not be messyNeedless to say, the film production method, avoid people go too many detoursIn fact, the Android SDK with the image of the production tool, if it is used by the artist, you also need to configure the Java environm

Long time no write, now in Guangzhou, a company internship, one months, interns nothing to do, see the Company a project. Android and iOS do not do the same thing (iOS has more people to do this project, not the amount of explanation.) The original to do this thing also job-hopping), both iOS to do the control more cool, I have nothing to do, one of the controls and iOS do almost, to see the effect of it The truncated GIF looks a bit fast, because

I. Description of the problem Android applications often involve loading a large number of images from the network, in order to increase the speed and efficiency of loading, reduce network traffic will adopt two-level caching and asynchronous loading mechanism, the so-called two-level cache is obtained from memory, and then from the file to obtain, the last access to the network. The memory cache (level) is essentially a map collection that stores th

This article describes the Android implementation ListView asynchronous loading of network pictures and dynamic update methods. Share to everyone for your reference, specific as follows: Application Example: Parsing the data returned in the background, each display in the ListView, including the activity picture, store name, activity details, address, telephone and distance. Definition of ListView in Layo

) {Options_decode.insamplesize = scale;Bitmap Bitmap = Bitmapfactory.decodestream (in, NULL,Options_decode);return BITMAP;}} catch (FileNotFoundException e) {LOG.V ("Bitmaputil", "createbitmap==" +e.tostring ());} finally {Closeinputstream (in);}}return null;}Close the input streamprivate static void Closeinputstream (InputStream in) {if (null! = IN) {try {In.close ();} catch (IOException e) {LOG.V ("Bitmaputil", "closeinputstream==" +e.tostring ());}}}Pictu