Universal image Loader own use of some feelings

1. The application definition of the global entry is initialized:

Imageloaderconfiguration configuration =NewImageloaderconfiguration.builder (Getapplicationcontext ()). ThreadPoolSize (3)//number of lines Cheng Chinega loaded. ThreadPriority (Thread.norm_priority-1)//default. Denycacheimagemultiplesizesinmemory ()//. MemoryCache (New Weakmemorycache ())//You can also use your own memory to cache the actual. MemoryCache (NewLrumemorycache (50 * 1024 * 1024))//You can also use your own memory cache to implement. Memorycachesize (50*1024*1024). Diskcachefilenamegenerator (NewMd5filenamegenerator ())//encrypt the URL name at the time of saving with MD5. Tasksprocessingorder (Queueprocessingtype.fifo)//Advanced First Out. diskcachesize (200 * 1024 * 1024). Defaultdisplayimageoptions (Displayimageoptions.createsimple ()). Imagedownloader (NewBaseimagedownloader (Getapplicationcontext ()))//default. Imagedecoder (NewBaseimagedecoder (true))//default//. Writedebuglogs ()//Remove for release app. Build (); //Global initialization of this configurationImageloader.getinstance (). init (configuration);

2. Display settings:

/*** options for displaying pictures, no transition time * for circle community, flash flashing when resolving a list of pictures too many*/     Public StaticDisplayimageoptions Optionswithcache =NewDisplayimageoptions.builder (). showimageonloading (R.drawable.icon_no_photo). Showimageonfail (R. Drawable.icon_no_photo). Showimageforemptyuri (R.drawable.icon_no_photo)//sets the picture to be displayed when the image URI is empty or wrong. Cacheinmemory (true). Cacheondisk (true). Bitmapconfig (Bitmap.Config.RGB_565). Considerexifparams (true)            //exactly_stretched: The picture zooms to the exact size of the target exactly: the target size of the image will be scaled down completely//In_sample_int: The image will be sampled in multiples of two times. Imagescaletype (Imagescaletype.in_sample_int). resetviewbeforeloading (false)            //. Delaybeforeloading (+)//a little delay before loading the picture will improve the smoothness of the overall slide.. Displayer (NewFadeinbitmapdisplayer (200))//whether the picture is loaded and the animation time is gradually entered. build ();

3, if the ImageView set the length of the width of the size:

Display can be used to automatically scale the image according to the size of the ImageView, saving memory:

imageloader.getinstance (). DisplayImage (Pic_url, imageview,optionswithcache);

For the ListView, the image may be duplicated by sliding too fast, which can be handled by setting tag:

 Public Static voidSetimagewithtag (FinalString Pic_url,FinalImageView imageview,context Context) {        if(Pic_url! =NULL) {String tag=(String) Imageview.gettag (); if(Tag = =NULL) {tag= ""; }            if(Pic_url.equals (Imageview.gettag ())) {return; }} String Picurl=Pic_url; if(!picurl.contains ("HTTP//") ) {Picurl= myconfig.picfirst+Picurl; }        //log.i ("main", "Loading Pic:" +pic_url);imageloader.getinstance (). DisplayImage (Picurl, ImageView, Optionswithcache); }

Settings inside the listview:

Setimageutils.setimagewithtag (picurl,holder.iv,context);

Holder.iv.setTag (picurl);

4, some pictures during the loading process of monitoring:

//load a picture of a custom configuration, Network Load Monitor, wait for the load picture to complete and then initialize to zoom outImageloader.getinstance (). DisplayImage (Picurl,mimageview, Setimageutils.optionswithcache,NewSimpleimageloadinglistener () {@Override Public voidonloadingstarted (String imageuri, view view) {Super. onloadingstarted (Imageuri, view); Utility.setloadingprogressbar (NULL, Parentview,true); } @Override Public voidOnloadingcomplete (String imageuri, view view, Bitmap loadedimage) {Super. Onloadingcomplete (Imageuri, view, loadedimage); Utility.setloadingprogressbar (NULL, Parentview,false); }        }, NewImageloadingprogresslistener () {@Override Public voidOnprogressupdate (String s, view view,intIintI1) {                //log.i ("main", "i=" +i+ ", il=" +i1);            }        });

There are mainly Imageloadinglistener (or its subclasses), and there are two kinds of imageloadingprogresslistener.

For universal image loader combination of memory, local storage two-level mechanism, to a certain extent convenient use, but there are some problems, there is a certain chance to oom, loading network pictures not fast enough.

Universal Image Loader Some of the feelings you use