sencha touch - How to offer files for download? -


i have problem. in sencha touch application have list items .pdf, .png, ... if user taps on 1 of them file should download on mobile device. how can this? have no idea :-)

thanks help.

you can use phonegap file api download files, if using sencha touch 2.3 or above follow bellow steps.

  1. install phonegap in sencha project executing following command @ project root , command creates phonegap folder inside project root.

    sencha phonegap init

  2. you need install 2 phonegap plugins work file api executing 2 following commands inside phonegap folder.

    $ phonegap local plugin add https://git-wip-us.apache.org/repos/asf/cordova-plugin-file.git

    $ phonegap local plugin add https://git-wip-us.apache.org/repos/asf/cordova-plugin-file-transfer.git

now can start working file api in sencha touch , can follow below code used 1 of project.

if want download file, first need read device file system , using file system can download files.

getfilesystem : function(){     var me =this;     ext.viewport.mask({          xtype: 'loadmask',          message: 'downloading files..'      });     var extfs = ext.create("ext.device.filesystem.cordova");     extfs.requestfilesystem({          type: window.persistent,          size: 1024 * 1024,          success: function(fsys) {              window.filesys = fsys;              ext.viewport.unmask();              me.filedownload("myfolder/filename.png","http://someurl");          },          failure: function(error){             alert(error);             ext.viewport.unmask();         }           }); }

i passing filelocation(location want store file inside phone) & url in above function.

filedownload: function(filelocation,url){     ext.viewport.mask({          xtype: 'loadmask',          message: 'downloading files..'      });     var me = this;     var fsys = window.filesys     if(fsys){         var file = ext.create('ext.device.filesystem.fileentry',                      fsys.fs.root.tourl() + filelocation, fsys);          file.download({             source: url,             success: function(entry){                 ext.msg.alert('success', 'image downloaded');                 ext.viewport.unmask();             },             failure: function(error){                 ext.msg.alert('error', 'download failed');                 ext.viewport.unmask();             }               });     } }

now can see image @ internalmemorycard/myfolder/filename.png

sencha docs

ext.device.filesystem.cordova

ext.device.filesystem.fileentry

if using sencha touch 2.2 or below change instead of using sencha class need directly use phonegap api.

for reading file system & file download follow phonegap documentation.


Comments

Post a Comment

Popular posts from this blog

android - Get AccessToken using signpost OAuth without opening a browser (Two legged Oauth) -

i using signpost oauth access data magento server. have read various tutorials on same , reach point open browser user can enter credentials. however, per requirement have automate part. hence, user should not browser page. have set-up done on server side ( magento ), hit url , returned call page. same through program in android. i have tried below, consumer = new commonshttpoauthconsumer(key, secret); provider = new commonshttpoauthprovider(oauth_init_url,access_token_url, authorize_url); try { provider.retrieverequesttoken(consumer, oauth.out_of_band); log.d("tokens" , consumer.gettoken() + " -- " + consumer.gettokensecret()); } and request tokens. dont know how bypass next step. tried directly accessing accesstoken (stupid of me) provider.retrieveaccesstoken(consumer, "mycallback://callback"); no luck, ends in oauth.signpost.exception.oauthnotauthorizedexception: authorization failed (server replied 401). ...
Read more

org.mockito.exceptions.misusing.InvalidUseOfMatchersException: mockito -

getting error org.mockito.exceptions.misusing.invaliduseofmatchersexception: invalid use of argument matchers! 1 matchers expected, 2 recorded. exception may occur if matchers combined raw values: //incorrect: somemethod(anyobject(), "raw string"); when using matchers, arguments have provided matchers. example: //correct: somemethod(anyobject(), eq("string matcher")); at when( getprogramservice .callservice(any(getprogramtype.class))) .thenreturn(jaxbresponse); please explain error , possible resolution the code posted looks fine; don't see problem it. code before or above causing exception. key here: invalid use of argument matchers! 1 matchers expected, 2 recorded. any , used above, doesn't return "special kind of null" or "special kind of getprogramtype"; don't exist. instead, returns null , side effect puts matcher on stack. whe...
Read more

google shop client API returns 400 bad request error while adding an item -

i'm working on solution add items in google shopping market java application. following tutorial real mess because of missing classes of laste release, after setting 1.5-beta maven managed make base example typecheck correctly classes. still can make simple task of adding 1 item. instead of posting whole code i'm posting part creates product feed. private product createproduct(string id) { product product = new product(); product.title = "red wool sweater"; product.content = new content( "text", "comfortable , soft, sweater keep warm on " + "cold winter nights. red , blue stripes."); product.appcontrol = new appcontrol(); product.appcontrol.addrequireddestination("productads"); product.externalid = id; product.lang = "it"; product.country = "it"; product.condition = "nuovo"; product.price = new price("eu...
Read more