android - images not appearing in gridView but after keyboard actived -
i have 2 activites,transporting arraylist imageurls activity addproductactivity activity sdcard. sdcard.java code is:
public class sdcard extends activity { private arraylist<string> imageurls; private displayimageoptions options; private imageadapter imageadapter; imageloader imageloader; @suppresswarnings("deprecation") @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_photoalbum); getactionbar(); getactionbar().sethomebuttonenabled(true); getactionbar().setdisplayhomeasupenabled(true); getactionbar().setdisplayshowtitleenabled(true); getactionbar().settitle("select image"); final string[] columns = { mediastore.images.media.data, mediastore.images.media._id }; final string orderby = mediastore.images.media.date_taken; cursor imagecursor = managedquery( mediastore.images.media.external_content_uri, columns, null, null, orderby + " desc"); this.imageurls = new arraylist<string>(); (int = 0; < imagecursor.getcount(); i++) { imagecursor.movetoposition(i); int datacolumnindex = imagecursor .getcolumnindex(mediastore.images.media.data); imageurls.add(imagecursor.getstring(datacolumnindex)); system.out.println("=====> array path => " + imageurls.get(i)); } options = new displayimageoptions.builder() .showimageforemptyuri(r.drawable.ic_launcher) .showimageonfail(r.drawable.ic_error_loadingsmall) .cacheinmemory(true) .cacheondisk(true) .considerexifparams(true) .bitmapconfig(bitmap.config.rgb_565) .build(); imageloader = imageloader.getinstance(); imageloader.init(imageloaderconfiguration.createdefault(this)); imageadapter = new imageadapter(this, imageurls); gridview gridview = (gridview) findviewbyid(r.id.album_gridview); gridview.setadapter(imageadapter); } @override public boolean oncreateoptionsmenu(menu menu) { // inflate menu; adds items action bar if present. getmenuinflater().inflate(r.menu.select_image, menu); return true; } @override public boolean onoptionsitemselected(menuitem item) { switch (item.getitemid()) { case android.r.id.home: intent intent = new intent(sdcard.this, addproductactivity.class); intent.addflags(intent.flag_activity_clear_top); startactivity(intent); return true; case r.id.select_image_submit: arraylist<string> selecteditems = imageadapter.getcheckeditems(); if (selecteditems.size() == 0) { toast.maketext(getbasecontext(), "no selected image！", toast.length_long) .show(); } else if (selecteditems.size() > 9) { toast.maketext(getbasecontext(), "must below 9 images", toast.length_long) .show(); } else { intent intent1 = new intent(this, addproductactivity.class); intent1.putstringarraylistextra("select_image", selecteditems); intent1.setflags(intent.flag_activity_clear_top); setresult(9392,intent1); finish(); } default: return super.onoptionsitemselected(item); } } @override protected void onstop() { imageloader.stop(); super.onstop(); } public class imageadapter extends baseadapter { arraylist<string> mlist; layoutinflater minflater; context mcontext; sparsebooleanarray msparsebooleanarray; public imageadapter(context context, arraylist<string> imagelist) { // todo auto-generated constructor stub mcontext = context; minflater = layoutinflater.from(mcontext); msparsebooleanarray = new sparsebooleanarray(); mlist = new arraylist<string>(); this.mlist = imagelist; } public arraylist<string> getcheckeditems() { arraylist<string> mtemparry = new arraylist<string>(); (int = 0; < mlist.size(); i++) { if (msparsebooleanarray.get(i)) { mtemparry.add(mlist.get(i)); } } return mtemparry; } @override public int getcount() { return imageurls.size(); } @override public object getitem(int position) { return null; } @override public long getitemid(int position) { return position; } @override public view getview(final int position, view convertview, viewgroup parent) { final progressbar spinner = (progressbar) findviewbyid(r.id.loading_image_fromsdcard); if (convertview == null) { convertview = minflater.inflate( r.layout.photoalbum_gridview_item, null); } checkbox mcheckbox = (checkbox) convertview .findviewbyid(r.id.select_image_cb); final imageview imageview = (imageview) convertview .findviewbyid(r.id.photo_img_view); imageloader.displayimage("file://" + imageurls.get(position), imageview, options, new simpleimageloadinglistener() { @override public void onloadingstarted(string imageuri, view view) { spinner.setvisibility(view.visible); } @override public void onloadingfailed(string imageuri, view view, failreason failreason) { string message = null; switch (failreason.gettype()) { case io_error: message = "input/output error"; break; case decoding_error: message = "image can't decoded"; break; case network_denied: message = "downloads denied"; break; case out_of_memory: message = "out of memory error"; break; case unknown: message = "unknown error"; break; } toast.maketext(sdcard.this, message, toast.length_short).show(); spinner.setvisibility(view.gone); } @override public void onloadingcomplete(string imageuri, view view, bitmap loadedimage) { spinner.setvisibility(view.gone); animation anim =animationutils.loadanimation(sdcard.this, r.anim.push_left_in); imageview.setanimation(anim); anim.start(); } }); imageview.setonclicklistener(new onclicklistener() { @override public void onclick(view v) { // todo auto-generated method stub toast.maketext(getbasecontext(), "selected item " + position, toast.length_long) .show(); } }); mcheckbox.settag(position); mcheckbox.setchecked(msparsebooleanarray.get(position)); mcheckbox.setoncheckedchangelistener(mcheckedchangelistener); return convertview; } oncheckedchangelistener mcheckedchangelistener = new oncheckedchangelistener() { @override public void oncheckedchanged(compoundbutton buttonview, boolean ischecked) { // todo auto-generated method stub msparsebooleanarray.put((integer) buttonview.gettag(), ischecked); } }; } } and activity addproductactivity recive imageurls activity sdcard , display image on it, code
public class addproductactivity extends activity{ gridview gridview; private string image; private static final int gallery_request = 9390; private displayimageoptions options; imageloader imageloader; private arraylist<string> selectimageurls; string[] f; private selectimageadapter selectimageadapter; imageview imageview; @suppresswarnings("deprecation") @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_add_product); final actionbar actionbar = getactionbar(); actionbar.setdisplayshowtitleenabled(false); // actionbar.setnavigationmode(actionbar.navigation_mode_list); actionbar.sethomebuttonenabled(true); actionbar.setdisplayhomeasupenabled(true); actionbar.setdisplayshowtitleenabled(true); actionbar.settitle("add product"); options = new displayimageoptions.builder() .showstubimage(r.drawable.ic_launcher) .showimageonfail(r.drawable.ic_error_loadingsmall) .cacheinmemory().cacheondisc().build(); gridview = (gridview) findviewbyid(r.id.select_image_gridview); this.selectimageurls = new arraylist<string>(); } @override public boolean oncreateoptionsmenu(menu menu) { // inflate menu; adds items action bar if present. getmenuinflater().inflate(r.menu.add_product, menu); return true; } @override public boolean onoptionsitemselected(menuitem item) { switch (item.getitemid()) { case android.r.id.home: intent intent = new intent(addproductactivity.this, mainactivity.class); intent.addflags(intent.flag_activity_clear_top); startactivity(intent); return true; case r.id.action_upload_picture: return true; default: return super.onoptionsitemselected(item); } } public void onselectfromsd(menuitem item) { intent selectfromsdcard = new intent(addproductactivity.this,sdcard.class); startactivityforresult(selectfromsdcard, gallery_request); } @override public void onactivityresult(int requestcode, int resultcode, intent data) { system.out.println("[requestcode=" + requestcode + "]" + "[resultcode=" + resultcode + "]"); if (requestcode == gallery_request && resultcode == 9392 && data != null) { // image = data.getdata().tostring(); selectimageurls = data.getstringarraylistextra("select_image"); if (selectimageurls != null) { // system.out.println("recieve =" + selectimageurls.size()); f = (string[]) selectimageurls .toarray(new string[selectimageurls.size()]); if (selectimageadapter == null) { selectimageadapter = new selectimageadapter(this, selectimageurls); imageloader.init(imageloaderconfiguration .createdefault(this)); gridview.setadapter(selectimageadapter); selectimageadapter.notifydatasetchanged(); gridview.setonitemclicklistener(new onitemclicklistener() { @override public void onitemclick(adapterview<?> parent, view view, int position, long id) { startfullimagepageractivity(position); } }); } else { selectimageadapter.notifydatasetchanged(); } } else { return; } } else { super.onactivityresult(requestcode, resultcode, data); } } protected void startfullimagepageractivity(int position) { // todo auto-generated method stub intent = new intent(addproductactivity.this, fullscreenviewactivity.class); i.putstringarraylistextra("position_url", selectimageurls); i.putextra("position", position); startactivity(i); } public class selectimageadapter extends baseadapter { layoutinflater minflater; context mcontext; public selectimageadapter(context context, arraylist<string> imagelist) { // todo auto-generated constructor stub mcontext = context; minflater = layoutinflater.from(mcontext); imageloader = imageloader.getinstance(); } @override public int getcount() { // todo auto-generated method stub return selectimageurls.size(); } @override public object getitem(int position) { // todo auto-generated method stub return null; } @override public long getitemid(int position) { // todo auto-generated method stub return position; } @override public view getview(int position, view convertview, viewgroup parent) { // todo auto-generated method stub if (convertview == null) { convertview = minflater.inflate(r.layout.select_image, null); } final imageview imageview = (imageview) convertview.findviewbyid(r.id.select_images); final progressbar spinner = (progressbar)convertview.findviewbyid(r.id.select_image_loading); //final viewanimator animator = (viewanimator)convertview.findviewbyid(r.id.animator); imageloader.displayimage("file://" + selectimageurls.get(position), imageview, options, new simpleimageloadinglistener() { @override public void onloadingstarted(string imageuri, view view) { spinner.setvisibility(view.visible); //animator.setdisplayedchild(1); } @override public void onloadingfailed(string imageuri, view view, failreason failreason) { string message = null; switch (failreason.gettype()) { case io_error: message = "input/output error"; break; case decoding_error: message = "image can't decoded"; break; case network_denied: message = "downloads denied"; break; case out_of_memory: message = "out of memory error"; break; case unknown: message = "unknown error"; break; }toast.maketext(addproductactivity.this, message,toast.length_short).show(); spinner.setvisibility(view.gone); //animator.setdisplayedchild(0); } @override public void onloadingcomplete(string imageuri, view view, bitmap loadedimage) { // animation anim = // animationutils.loadanimation(sdcard.this, // r.anim.push_left_in); // imageview.setanimation(anim); // anim.start(); spinner.setvisibility(view.gone); notifydatasetchanged();//followed armin's suggestion } }); return convertview; } } but when returned activity addproductactivity,the images did not appear in gridview ,if clicked editortext active keyboard,the images appearing in gridview. puzzled,waiting suggestions, thanks!
image url :http://i61.tinypic.com/2ch9onq.png actived keyboard image appearing: http://i61.tinypic.com/2l8uumc.png
if used getview() method in addproductactivity,it works fine.
@override public view getview(final int position, view convertview, viewgroup parent) { if (convertview == null){ imageview = new imageview(mcontext); imageview.setlayoutparams(new gridview.layoutparams(245, 150)); imageview.setscaletype(imageview.scaletype.center_crop); } else { imageview = (imageview) convertview; } bitmapfactory.options bmoptions = new bitmapfactory.options(); bmoptions.injustdecodebounds = false ; bmoptions.insamplesize = 4; bmoptions.inpurgeable = true ; bitmap bitmap = bitmapfactory.decodefile(selectimageurls.get(position), bmoptions); imageview.setimagebitmap(bitmap); return imageview; } but not smooth when transfored imageurls addproductactivity.
try replace adapter code.
public class selectimageadapter extends baseadapter { context mcontext; viewholder holder; public selectimageadapter(context context, arraylist<string> imagelist) { // todo auto-generated constructor stub mcontext = context; imageloader = imageloader.getinstance(); } @override public int getcount() { // todo auto-generated method stub return selectimageurls.size(); } @override public object getitem(int position) { // todo auto-generated method stub return null; } @override public long getitemid(int position) { // todo auto-generated method stub return position; } @override public view getview(int position, view convertview, viewgroup parent) { if (convertview == null) { holder = new viewholder(); convertview = layoutinflater.from(mcontext).inflate(r.layout.select_image, null); holder.imageview = (imageview) convertview.findviewbyid(r.id.select_images); holder.spinner = (progressbar)convertview.findviewbyid(r.id.select_image_loading); convertview.settag(holder); }else{ holder = (viewholder) convertview.gettag(); } //final viewanimator animator = (viewanimator)convertview.findviewbyid(r.id.animator); imageloader.displayimage("file://" + selectimageurls.get(position),holder.imageview, options, new simpleimageloadinglistener() { @override public void onloadingstarted(string imageuri, view view) { holder.spinner.setvisibility(view.visible); //animator.setdisplayedchild(1); } @override public void onloadingfailed(string imageuri, view view, failreason failreason) { string message = null; switch (failreason.gettype()) { case io_error: message = "input/output error"; break; case decoding_error: message = "image can't decoded"; break; case network_denied: message = "downloads denied"; break; case out_of_memory: message = "out of memory error"; break; case unknown: message = "unknown error"; break; } toast.maketext(addproductactivity.this, message,toast.length_short).show(); holder.spinner.setvisibility(view.gone); //animator.setdisplayedchild(0); } @override public void onloadingcomplete(string imageuri, view view, bitmap loadedimage) { // animation anim = // animationutils.loadanimation(sdcard.this, // r.anim.push_left_in); // imageview.setanimation(anim); // anim.start(); holder.spinner.setvisibility(view.gone); } }); return convertview; } class viewholder { imageview imageview; progressbar spinner; } }
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