Code for saving images in Android

Copy From camra app:

 

<Br/> Import Java. io. file; <br/> Import Java. io. filenotfoundexception; <br/> Import Java. io. fileoutputstream; <br/> Import Java. io. ioexception; <br/> Import Java. io. outputstream; <br/> Import android. content. contentresolver; <br/> Import android. content. contentvalues; <br/> Import android. graphics. bitmap; <br/> Import android. graphics. bitmap. compressformat; <br/> Import android. location. location; <br/> impor T android. media. exifinterface; <br/> Import android.net. uri; <br/> Import android. OS. environment; <br/> Import android. provider. mediastore. images; <br/> Import android. util. log; <br/> public class imagemanager {<br/> Private Static final string tag = "imagemanager"; <br/> Private Static final URI storage_uri = images. media. external_content_uri; </P> <p> Public static final string camera_image_bucket_name = <Br/> environment. getexternalstoragedirectory (). tostring () <br/> + "/dcim/camera"; <br/> private imagemanager () {<br/>}</P> <p> Private Static Boolean checkfswritable () {<br/> // create a temporary file to see whether a volume is really writeable. <br/> // it's important not to put it in the root directory which may have a <br/> // limit on the number of files. <br/> string directoryname = <br/> Environment. getexternalstoragedirectory (). tostring () + "/dcim"; <br/> file directory = new file (directoryname); <br/> If (! Directory. isdirectory () {<br/> If (! Directory. mkdirs () {<br/> return false; <br/>}< br/> return directory. canwrite (); <br/>}< br/> Public static Boolean hasstorage () {<br/> return hasstorage (true ); <br/>}< br/> Public static Boolean hasstorage (Boolean requirewriteaccess) {<br/> string state = environment. getexternalstoragestate (); <br/> If (environment. media_mounted.equals (State) {<br/> If (requirewriteaccess) {<br/> Boolean writable = checkfswritable (); <br/> return writable; <br/>}else {<br/> return true; <br/>}< br/>} else if (! Requirewriteaccess <br/> & Environment. media_mounted_read_only.equals (State) {<br/> return true; <br/>}< br/> return false; <br/>}</P> <p> Public static int getexiforientation (string filepath) {<br/> int degree = 0; <br/> exifinterface EXIF = NULL; <br/> try {<br/> EXIF = new exifinterface (filepath); <br/>}catch (ioexception ex) {<br/> log. E (TAG, "cannot read EXIF", ex); <br/>}< br/> If (EXIF! = NULL) {<br/> int orientation = EXIF. getattributeint (<br/> exifinterface. tag_orientation,-1); <br/> If (orientation! =-1) {<br/> // We only recognize a subset of orientation tag values. <br/> switch (orientation) {<br/> case exifinterface. orientation_rotate_90: <br/> degree = 90; <br/> break; <br/> case exifinterface. orientation_rotate_180: <br/> degree = 180; <br/> break; <br/> case exifinterface. orientation_rotate_270: <br/> degree = 270; <br/> break; <br/>}< br/> return degree; <br/>}</P> <p> // <Br/> // stores a bitmap or a jpeg byte array to a file (using the specified <br/> // directory and filename ). also Add an entry to the media store for <br/> // this picture. the title, datetaken, location are attributes for the <br/> // picture. the degree is a one element array which returns the orientation <br/> // of the picture. <br/> // <br/> Public static URI addimage (contentresolver C R, String title, long datetaken, <br/> location, string directory, string filename, <br/> bitmap source, byte [] parse data, int [] degree) {<br/> // We shocould store image data earlier than insert it to contentprovider, <br/> // otherwise we may not be able to generate thumbnail in time. <br/> outputstream = NULL; <br/> string filepath = directory + "/" + filename; <br/> try {<B R/> file dir = new file (directory); <br/> If (! Dir. exists () dir. mkdirs (); <br/> file = new file (directory, filename); <br/> outputstream = new fileoutputstream (File); <br/> If (source! = NULL) {<br/> source. compress (compressformat. JPEG, 100, outputstream); <br/> degree [0] = 0; <br/>}else {<br/> outputstream. write (writable data); <br/> degree [0] = getexiforientation (filepath); <br/>}< br/>} catch (filenotfoundexception ex) {<br/> log. W (TAG, ex); <br/> return NULL; <br/>} catch (ioexception ex) {<br/> log. W (TAG, ex); <br/> return NULL; <br/>} finally {<br/> utils. closesilentl Y (outputstream); <br/>}< br/> // read back the compressed file size. <br/> long size = new file (directory, filename ). length (); <br/> contentvalues values = new contentvalues (9); <br/> values. put (images. media. title, title); <br/> // That filename is what will be handed to Gmail when a user shares a <br/> // photo. gmail gets the name of the picture attachment from the <br/> // "display_name" Field. <Br/> values. put (images. media. display_name, filename); <br/> values. put (images. media. date_taken, datetaken); <br/> values. put (images. media. mime_type, "image/JPEG"); <br/> values. put (images. media. orientation, degree [0]); <br/> values. put (images. media. data, filepath); <br/> values. put (images. media. size, size); <br/> If (location! = NULL) {<br/> values. put (images. media. latitude, location. getlatitude (); <br/> values. put (images. media. longpolling, location. getlongpolling (); <br/>}< br/> return Cr. insert (storage_uri, values); <br/>}< br/> 

 

Usage, such as saving a specified view to an image file:

Mainview mmainview = (mainview) findviewbyid (R. id. main_back); </P> <p> If (false = mmainview. isdrawingcacheenabled () {<br/> mmainview. setdrawingcacheenabled (true); <br/>}</P> <p> Bitmap bitmap = mmainview. getdrawingcache (); <br/> // storeimagetofile (Bitmap); <br/> storeimage (bitmap, null); <br/> mmainview. setdrawingcacheenabled (false); </P> <p> toast. maketext (mcontext, "Save photo:" + mlastcontenturi, toast. length_short ). show ();