Android-universal-image-loader-master detailed

<span id="Label3"></p><p>Android-universal-image-loader-master use<br>: Https://github.com/nostra13/Android-Universal-Image-Loader<br>Steps:<br>1), first configure the Imageloaderconfiguration this class to achieve global Imageloader implementation of the situation,<br>Application in the Configuration.<br><br>This configuration tuning is Custom. You can tune every option, your may tune some of them,<br>Or you can create the default configuration by<br>Imageloaderconfiguration.createdefault (this);<br>Method.<br>Imageloaderconfiguration.builder config = new Imageloaderconfiguration.builder (context);<br>Config.threadpriority (thread.norm_priority-2);<br>Config.denycacheimagemultiplesizesinmemory ();<br>Config.diskcachefilenamegenerator (new Md5filenamegenerator ());<br>Config.diskcachesize (50 * 1024 * 1024); MiB<br>Config.tasksprocessingorder (queueprocessingtype.lifo);<br>Config.writedebuglogs (); Remove for release app<br><br>Note: more configuration items are viewed in imageloaderconfiguration.builder.<br><br>2), Initialize global configuration<br>Initialize Imageloader with Configuration.<br>Imageloader.getinstance (). Init (config.build ());<br><br>3), Initialize the display image format Displayimageoptions settings<br>Displayimageoptions options = new Displayimageoptions.builder ()<br>. showimageonloading (r.drawable.ic_stub)<br>. Showimageforemptyuri (r.drawable.ic_empty)<br>. Showimageonfail (r.drawable.ic_error)<br>. cacheinmemory (true)<br>. Cacheondisk (true)<br>. Considerexifparams (true)<br>. displayer (new Roundedbitmapdisplayer (20))<br>. Build ();<br>4), loading the picture onto the control<br>Imageloader.getinstance (). displayimage (imageurls[position], holder.image, options,null);<br>Note: DisplayImage This method has multiple overloaded forms, depending on the Situation.<br>5) example:<br>5.1) Configure the global parameters and initialize:<br>/*******************************************************************************<br>public class Uilapplication extends application {<br>@TargetApi (build.version_codes. Gingerbread)<br>@SuppressWarnings ("unused")<br>@Override<br>public void OnCreate () {<br>If (Constants.Config.DEVELOPER_MODE && Build.VERSION.SDK_INT >= build.version_codes. Gingerbread) {<br>Strictmode.setthreadpolicy (new StrictMode.ThreadPolicy.Builder (). detectall (). penaltydialog (). Build ());<br>Strictmode.setvmpolicy (new StrictMode.VmPolicy.Builder (). detectall (). penaltydeath (). Build ());<br>}<br><br>Super.oncreate ();<br><br>Initimageloader (getapplicationcontext ());<br>}<br><br>Initializing the Imageloader global configuration<br>public static void Initimageloader (context Context) {<br>This configuration tuning is Custom. You can tune every option, your may tune some of them,<br>Or you can create the default configuration by<br>Imageloaderconfiguration.createdefault (this);<br>Method.<br>Imageloaderconfiguration.builder config = new Imageloaderconfiguration.builder (context);<br>Config.threadpriority (thread.norm_priority-2);<br>Config.denycacheimagemultiplesizesinmemory ();<br>Config.diskcachefilenamegenerator (new Md5filenamegenerator ());<br>Config.diskcachesize (50 * 1024 * 1024); MiB<br>Config.tasksprocessingorder (queueprocessingtype.lifo);<br>Config.writedebuglogs (); Remove for release app<br><br>Initialize Imageloader with Configuration.<br>Imageloader.getinstance (). Init (config.build ());<br>}<br>}<br>5.2),<br><br>public class MyActivity extends Activity {<br><br>Private Layoutinflater inflater;<br>Private Displayimageoptions options;<br>Private ListView listview;<br>string[] Imageurls = constants.images;<br><br>@Override<br>protected void OnCreate (Bundle Savedinstancestate) {<br>Super.oncreate (savedinstancestate);<br>Setcontentview (r.layout.fr_image_list);<br>Inflater=layoutinflater.from (this);<br>Init ();<br><br>listview= (ListView) Findviewbyid (android. r.id.list);<br>Listview.setadapter (new Mybaseadapter ());<br>}<br><br>Private class Mybaseadapter extends baseadapter{<br><br>@Override<br>public int GetCount () {<br>Return imageurls.length;<br>}<br><br>@Override<br>Public Object GetItem (int Position) {<br>Return imageurls[position];<br>}<br><br>@Override<br>Public long Getitemid (int Position) {<br>Return position;<br>}<br><br>@Override<br>Public View getView (int position, View convertview, viewgroup Parent) {<br>View view=convertview;<br>Viewholder holder;<br>If (convertview==null) {<br>Holder=new Viewholder ();<br>View = inflater.inflate (r.layout.item_list_image, parent, false);<br>Holder.image = (ImageView) View.findviewbyid (r.id.image);<br>Holder.text = (TextView) View.findviewbyid (r.id.text);<br>View.settag (holder);<br>}else{<br>holder= (viewholder) View.gettag ();<br>}<br>Holder.text.setText ("Item" + (position + 1));<br>Instantiate Imageloader and load pictures<br>Imageloader.getinstance (). displayimage (imageurls[position], holder.image, options,null);<br> <br>Return view;<br>}<br>}<br><br>View Cache Object<br>private Static Class Viewholder {<br>TextView text;<br>ImageView image;<br>}<br><br>private void init () {<br>options = new Displayimageoptions.builder ()<br>. showimageonloading (r.drawable.ic_stub)<br>. Showimageforemptyuri (r.drawable.ic_empty)<br>. Showimageonfail (r.drawable.ic_error)<br>. cacheinmemory (true)<br>. Cacheondisk (true)<br>. Considerexifparams (true)<br>. displayer (new Roundedbitmapdisplayer (20))<br>. Build ();<br>}<br>}</p><p><p>Android-universal-image-loader-master detailed</p></p></span>