java - Android how to use Environment.getExternalStorageDirectory() corretly -

-

android how use environment.getexternalstoragedirectory()

how can use environment.getexternalstoragedirectory() read/write image sd card ? or there better way it?

i did use source download e save image:

    try {          url url = new url(urlbaseimagem + icone);         urlconnection conection = url.openconnection();         conection.connect();         // useful can show tipical 0-100% progress bar         int lenghtoffile = conection.getcontentlength();          //         // download file         inputstream input = new bufferedinputstream(url.openstream(), 8192);          // output stream                         //file sdcard = environment.getexternalstoragepublicdirectory(download_service);         file sdcard = environment.getexternalstoragedirectory();          file directory = new file(sdcard.getabsolutepath() + "/cardapioweb/rest/");          if(directory.exists() == false){             directory.mkdirs();         }         file outputfile = new file(directory, icone);          outputstream output = new fileoutputstream(outputfile);          byte data[] = new byte[1024];          long total = 0;          while ((count = input.read(data)) != -1) {             total += count;             // publishing progress....             // after onprogressupdate called             //publishprogress(""+(int)((total*100)/lenghtoffile));              // writing data file             output.write(data, 0, count);         }          // flushing output         output.flush();          // closing streams         output.close();         input.close();          log.w("cardapioweb:" , "imagem " + outputfile.tostring() + " salva no sdcard");       } catch (exception e) {         log.e("error: ", e.getmessage());     }

i did use source load e show image:

file arq = new file(this.sdcard.getabsolutepath() + "/cardapioweb/rest/" + filialdatacollection.get(position).get(key_icone));  //verifica se imagem foi baixada com sucesso if(arq.exists() == true){         //deve exibir imagem sdcard         file outputfile1 = new file(this.sdcard.getabsolutepath() + "/cardapioweb/rest/", filialdatacollection.get(position).get(key_icone));         drawable imagem = drawable.createfrompath(outputfile1.tostring());         holder.tvweatherimage.setimagedrawable(imagem);  }

the above codes works fine on emulator (android virtual device) eclipse !!!! when generate apk , install on galaxy s4, app can not read images (no error generated). not display images. wrong?

put log in code see 

outputfile1.tostring();

actually points to, expect?

personally, have used outputfile1.getabsolutepath(); not line below:

drawable imagem = drawable.createfrompath(outputfile1.tostring());

Comments

Post a Comment

Popular posts from this blog

wordpress - (T_ENDFOREACH) php error -

-
creating wordpress website , i'm getting following php error: parse error: syntax error, unexpected 'endforeach' (t_endforeach) in /home/soralmedia/public_html/wp-content/themes/soral media/woocommerce/myaccount/my-orders.php on line 98 here's code file: <?php /** * orders * * shows recent orders on account page. * * template can overridden copying yourtheme/woocommerce/myaccount/my-orders.php. * * however, on occasion woocommerce need update template files , (the theme developer). * need copy new files theme maintain compatibility. try this. * little possible, happen. when occurs version of template file will. * bumped , readme list important changes. * * @see http://docs.woothemes.com/document/template-structure/ * @author woothemes * @package woocommerce/templates * @version 2.5.0 */ if ( ! defined( 'abspath' ) ) { exit; } $my_orders_columns = apply_filters( 'woocommerce_my_account_my_orders_columns', array( ...
Read more

Export Excel workseet into txt file using vba - (text and numbers with formulas) -

-
i new vba have developed code use in excel move text/numbers txt file. issue have 3 functions need go same txt file. when run first function has set fs = createobject("scripting.filesystemobject") set = fs.createtextfile(module1.nys45uploadfilename, true) a.writeline (str) a.close. the other 2 functions had save. set fs = createobject("scripting.filesystemobject") set = fs.savetextfile(module1.nys45uploadfilename, true) a.writeline (str) a.close. the first function go txt file, other 2 error object doesn't support property or method. when changed 3 create last function goes txt file. can not figure out word use in order make other 2 functions follow txt file in order keyed. the entire code follows private sub addrecord_click() on error goto errhandler module1.nys45uploadfilename = application.getsaveasfilename(filefilter:="textfiles (*.txt), *.txt") if module1.nys45uploadfilename = "false" exit sub ...
Read more

Using django-mptt to get only the categories that have items -

-
sample structure: all uppercase: category mixed case: item root ├── books │   ├── fiction │   │   └── classics │   └── non-fiction ├── clothing └── electronics ├── laptops ├── phones │   ├── apple │   │   ├── iphone 6 │   │   ├── iphone 6 plus │   │   ├── iphone 6s │   │   └── iphone 6s plus │   ├── motorola │   │   ├── moto g4 │   │   ├── moto g4 play │   │   ├── moto g4 plus │   │   └── moto x │   └── samsung └── tablets └── apple i'm trying have index page show "electronics" category. "clothing" category shouldn't show since it's empty , "books" category shouldn't show either since, although has child categories, child categories don't have items. similarly, "electronics" page should show "phones" category. "laptops" category shouldn't show since it's empty , "tablets" category shouldn't show either since...
Read more