android - How to reduce image size while taking from gallery through imagepath -


i want take image camera , take gallery part did . when take images 1 activity other through image path show memory out error on taking fourth image ,so want take image gallery , when take image gallery should compressed should not have out of memory error byte allocation.

thanks.

here code can in this

imageview1=(imageview) findviewbyid(r.id.image1);     imageview2=(imageview) findviewbyid(r.id.image2);     imageview3=(imageview) findviewbyid(r.id.image3);     imageview4=(imageview) findviewbyid(r.id.image4);       bitmap b = (bitmap) getintent().getparcelableextra("data") ;      sharedpreferences preferences = preferencemanager.getdefaultsharedpreferences(this);     locationname = preferences.getstring("location", "location");      sharedpreferences preferences1 = preferencemanager.getdefaultsharedpreferences(this);     categoryname = preferences1.getstring("categoryname", "categoryname");      sharedpreferences imagepath1 = preferencemanager.getdefaultsharedpreferences(this);     selectedimagepath1 = imagepath1.getstring("picturepath1", "picturepath1");       sharedpreferences imagepath2 = preferencemanager.getdefaultsharedpreferences(this);     selectedimagepath2 = imagepath2.getstring("picturepath2", "picturepath2");      sharedpreferences imagepath3 = preferencemanager.getdefaultsharedpreferences(this);     selectedimagepath3 = imagepath3.getstring("picturepath3", "picturepath3");      sharedpreferences imagepath4 = preferencemanager.getdefaultsharedpreferences(this);     selectedimagepath4 = imagepath4.getstring("picturepath4", "picturepath4");       bitmap thumbnail1 = (bitmapfactory.decodefile(selectedimagepath1));     bytearrayoutputstream stream = new bytearrayoutputstream();     thumbnail1.compress(bitmap.compressformat.jpeg, 90, stream);      bitmap thumbnail2 = (bitmapfactory.decodefile(selectedimagepath2));     bytearrayoutputstream stream1 = new bytearrayoutputstream();     thumbnail2.compress(bitmap.compressformat.jpeg, 90, stream1);      bitmap thumbnail3 = (bitmapfactory.decodefile(selectedimagepath3));     bytearrayoutputstream stream2 = new bytearrayoutputstream();     thumbnail2.compress(bitmap.compressformat.jpeg, 90, stream2);      bitmap thumbnail4 = (bitmapfactory.decodefile(selectedimagepath4));     bytearrayoutputstream stream3 = new bytearrayoutputstream();     thumbnail4.compress(bitmap.compressformat.jpeg, 90, stream3);       imageview1.setimagebitmap(thumbnail1);     thumbnail1.recycle();     imageview2.setimagebitmap(thumbnail2);     imageview3.setimagebitmap(thumbnail3 );     imageview4.setimagebitmap(thumbnail4);

it happens because of image size. have resize or compress images. below code that. use per needed:

public static bitmap loadresizedbitmap( string filename, int width, int height, boolean exact ) {     bitmap bitmap = null;     bitmapfactory.options options = new bitmapfactory.options();     options.injustdecodebounds = true;     bitmapfactory.decodefile( filename, options );     if ( options.outheight > 0 && options.outwidth > 0 ) {         options.injustdecodebounds = false;         options.insamplesize = 2;         while (    options.outwidth  / options.insamplesize > width                 && options.outheight / options.insamplesize > height ) {             options.insamplesize++;         }         options.insamplesize--;          bitmap = bitmapfactory.decodefile( filename, options );         if ( bitmap != null && exact ) {             bitmap = bitmap.createscaledbitmap( bitmap, width, height, false );         }     }     return bitmap; }

or

public static int calculateinsamplesize(             bitmapfactory.options options, int reqwidth, int reqheight) {     // raw height , width of image     final int height = options.outheight;     final int width = options.outwidth;     int insamplesize = 1;      if (height > reqheight || width > reqwidth) {          final int halfheight = height / 2;         final int halfwidth = width / 2;          // calculate largest insamplesize value power of 2 , keeps both         // height , width larger requested height , width.         while ((halfheight / insamplesize) > reqheight                 && (halfwidth / insamplesize) > reqwidth) {             insamplesize *= 2;         }     }      return insamplesize; }

Comments

Post a Comment

Popular posts from this blog

apache - Remove .php and add trailing slash in url using htaccess not loading css -

i have add following code htaccess file removing .php extension , add trailing slash urls. worked fine reduced page loading speed , css code not loading @ all. pages ugly. please help rewriteengine on rewritebase / ## hide .php extension snippet # externally redirect /dir/foo.php /dir/foo rewritecond %{the_request} ^[a-z]{3,}\s([^.]+)\.php [nc] rewriterule ^ %1/ [r,l] # add trailing slash rewritecond %{request_filename} !-f rewritecond %{request_uri} !/$ rewriterule . %{request_uri}/ [l,r=301] # internally forward /dir/foo /dir/foo.php rewritecond %{request_filename} !-d rewritecond %{request_filename}.php -f rewriterule ^(.*?)/?$ $1.php [l] we can rewrite urls using .htaccess files. before writing in .htaccess files need verify kind of server using. can check server adding a <?php phpinfo(); ?> in php page. ensure mod_rewrite module enabled in apache server. can identified checking phpinfo included page. common methods used url rewriting follows ...
Read more

javascript - jQuery show full size image on click -

pretty self explanatory not workking . i want display full image when user click on image... yes know there tons of plugins but i want keep simple. any idea ? css : .full { display: none; width: 500px; height: 500px; margin-left: 100px; margin-top: -300px; position: fixed; background-color: #f00; z-index: 6; } .thumbnail { width: 50px; height: 50px; } html: <img class="thumbnail" src="http://4.bp.blogspot.com/-uhbdp2esxng/txneptvi92i/aaaaaaaaaky/upfqis7zto0/s1600/rihanna-wallpaper.jpg"> jquery: $(document).ready(function() { $('.thumbnail').on('click', function() { var img = $('<img />',{src:this.src,'class':'full'}); $('.full').html(img).show(); console.log('done!'); }); }); try looking how jquery works. $(document).ready(function() { $('.thumbnail').on('click', function(...
Read more