android - how to display images from sd card using ImageLoader -
i'm getting malformedurlexception while displaying images sd card using imageloader, getting error of java.net.malformedurlexception: protocol not found: /storage/emulated/0/classnkk_images/3_20150928162260013.png . can possible pass sd card path imageloader.
log cat
09-30 06:40:24.056 14267-14343/? w/system.err﹕ java.net.malformedurlexception: protocol not found: /storage/emulated/0/classnkk_images/3_20150928162260013.png 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ java.net.url.<init>(url.java:176) 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ java.net.url.<init>(url.java:125) 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ com.example.tazeen.classnkk.imageloader.getbitmap(imageloader.java:68) 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ com.example.tazeen.classnkk.imageloader.access$000(imageloader.java:23) 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ com.example.tazeen.classnkk.imageloader$photosloader.run(imageloader.java:134) 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ java.util.concurrent.executors$runnableadapter.call(executors.java:422) 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ java.util.concurrent.futuretask.run(futuretask.java:237) 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1112) 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:587) 09-30 06:40:24.056 14267-14343/? w/system.err﹕ @ java.lang.thread.run(thread.java:818) here imageloader class
public class imageloader { memorycache memorycache=new memorycache(); filecache filecache; private map<imageview, string> imageviews= collections.synchronizedmap(new weakhashmap<imageview, string>()); executorservice executorservice; public imageloader(context context){ filecache=new filecache(context); executorservice= executors.newfixedthreadpool(5); } int stub_id = r.drawable.ic_launcher; public void displayimage(string url, int loader, imageview imageview) { stub_id = loader; imageviews.put(imageview, url); bitmap bitmap=memorycache.get(url); if(bitmap!=null) imageview.setimagebitmap(bitmap); else { queuephoto(url, imageview); imageview.setimageresource(loader); } } private void queuephoto(string url, imageview imageview) { phototoload p=new phototoload(url, imageview); executorservice.submit(new photosloader(p)); } private bitmap getbitmap(string url) { file f=filecache.getfile(url); //from sd cache bitmap b = decodefile(f); if(b!=null) return b; //from web try { bitmap bitmap=null; url imageurl = new url(url); httpurlconnection conn = (httpurlconnection)imageurl.openconnection(); conn.setconnecttimeout(8000); conn.setreadtimeout(8000); conn.setinstancefollowredirects(true); inputstream is=conn.getinputstream(); outputstream os = new fileoutputstream(f); utils.copystream(is, os); os.close(); bitmap = decodefile(f); return bitmap; } catch (exception ex){ ex.printstacktrace(); return null; } } //decodes image , scales reduce memory consumption private bitmap decodefile(file f){ try { //decode image size bitmapfactory.options o = new bitmapfactory.options(); o.injustdecodebounds = true; bitmapfactory.decodestream(new fileinputstream(f), null, o); //find correct scale value. should power of 2. final int required_size=70; int width_tmp=o.outwidth, height_tmp=o.outheight; int scale=1; while(true){ if(width_tmp/2<required_size || height_tmp/2<required_size) break; width_tmp/=2; height_tmp/=2; scale*=2; } //decode insamplesize bitmapfactory.options o2 = new bitmapfactory.options(); o2.insamplesize=scale; return bitmapfactory.decodestream(new fileinputstream(f), null, o2); } catch (filenotfoundexception e) {} return null; } //task queue private class phototoload { public string url; public imageview imageview; public phototoload(string u, imageview i){ url=u; imageview=i; } } class photosloader implements runnable { phototoload phototoload; photosloader(phototoload phototoload){ this.phototoload=phototoload; } @override public void run() { if(imageviewreused(phototoload)) return; bitmap bmp=getbitmap(phototoload.url); memorycache.put(phototoload.url, bmp); if(imageviewreused(phototoload)) return; bitmapdisplayer bd=new bitmapdisplayer(bmp, phototoload); activity a=(activity)phototoload.imageview.getcontext(); a.runonuithread(bd); } } boolean imageviewreused(phototoload phototoload){ string tag=imageviews.get(phototoload.imageview); if(tag==null || !tag.equals(phototoload.url)) return true; return false; } //used display bitmap in ui thread class bitmapdisplayer implements runnable { bitmap bitmap; phototoload phototoload; public bitmapdisplayer(bitmap b, phototoload p){bitmap=b;phototoload=p;} public void run() { if(imageviewreused(phototoload)) return; if(bitmap!=null) phototoload.imageview.setimagebitmap(bitmap); else phototoload.imageview.setimageresource(stub_id); } } public void clearcache() { memorycache.clear(); filecache.clear(); } }
it seems having malformed url - error says.
therefore check if have proper url.
similar question:
malformedurlexception in android when downloading zip file.
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