android - --- SkImageDecoder::Factory returned null -
i trying insert , retrieve image data sqlite database. have following codes. image inserted correctly when try retrieve, logcat shows --- skimagedecoder::factory returned null error. please me
this class used create , insert database
imageview img; string picpath; bitmap bmp; canvas cnvs; random r; int x, y, height, width; bytearrayoutputstream blob; //sql sql; paint paint; string name, no; uri data; sqlitedatabase db; string[] filepath = {mediastore.images.media.data}; ; cursor cur; textview txt; int colindex; contentvalues ctv; byte[] imgdata; public static final string db_name = "new.db"; public static final string table_name = "sample"; public static final int db_version = 1; public static final string name = "name"; public static final string no = "no"; public static final string img = "img"; public static final string pixelx = "posx"; public static final string pixely = "posy"; public void create() { db = openorcreatedatabase(db_name, context.mode_world_writeable, null); db.execsql("create table if not exists " + table_name + "(" + name + " text not null," + no + " text primary key," + img + " blob," + pixelx + " integer ," + pixely + " integer );"); db.close(); } public void insert() { db = openorcreatedatabase(db_name, context.mode_private, null); db.execsql("delete " + table_name); ctv.put(name, name); ctv.put(no, no); try { fileinputstream img_file = new fileinputstream(picpath); bufferedinputstream bis = new bufferedinputstream(img_file); imgdata = new byte[bis.available()]; bis.read(); ctv.put(img, imgdata); long val = db.insert(table_name, null, ctv); toast.maketext(this.getbasecontext(), "image saved", toast.length_short).show(); if (val < 0) toast.maketext(this.getbasecontext(), "image not saved", toast.length_short).show(); bis.close(); } catch (exception e) { e.getmessage(); } db.close(); } protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.register); ctv = new contentvalues(); img = (imageview) findviewbyid(r.id.imageview1); r = new random(); paint = new paint(); x = r.nextint(100); blob = new bytearrayoutputstream(); create(); intent = getintent(); name = i.getstringextra("name"); no = i.getstringextra("no"); //open button button open = (button) findviewbyid(r.id.button3); open.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { // todo auto-generated method stub intent gal_open = new intent(intent.action_pick, android.provider.mediastore.images.media.external_content_uri); startactivityforresult(gal_open, 1); } }); txt = (textview) findviewbyid(r.id.textview1); button shuffle = (button) findviewbyid(r.id.button2); shuffle.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { // todo auto-generated method stub bmp = bitmap.createbitmap(img.getheight(), img.getwidth(), bitmap.config.rgb_565); cnvs = new canvas(bmp); height = img.getmeasuredheight(); width = img.getmeasuredwidth(); x = r.nextint(height); y = r.nextint(width); paint.setcolor(color.red); txt.settext(x + "," + y); cnvs.drawbitmap(bitmapfactory.decodefile(picpath), 0, 0, null); cnvs.drawrect(x, y, x + 20, y + 20, paint); img.setimagebitmap(bmp); } }); button ok = (button) findviewbyid(r.id.button1); txt = (textview) findviewbyid(r.id.textview1); ok.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { // todo auto-generated method stub create(); insert(); startactivity(new intent(getapplicationcontext(), mainactivity.class)); } }); } public void onactivityresult(int requestcode, int resultcode, intent intentdata) { super.onactivityresult(requestcode, resultcode, intentdata); if (requestcode == 1 && resultcode == result_ok && intentdata != null) { bmp = bitmap.createbitmap(img.getheight(), img.getwidth(), bitmap.config.rgb_565); cnvs = new canvas(bmp); height = img.getmeasuredheight(); width = img.getmeasuredwidth(); x = r.nextint(height); y = r.nextint(width); paint.setcolor(color.red); data = intentdata.getdata(); cur = getcontentresolver().query(data, filepath, null, null, null); cur.movetofirst(); colindex = cur.getcolumnindex(filepath[0]); picpath = cur.getstring(colindex); cur.close(); txt = (textview) findviewbyid(r.id.textview1); txt.settext(x + "," + y); cnvs.drawbitmap(bitmapfactory.decodefile(picpath), 0, 0, null); cnvs.drawrect(x, y, x + 20, y + 20, paint); img.setimagebitmap(bmp); } } the code retrieve data is
public class login extends activity { //sql sql; user user; string name; textview no; imageview img; int imgx, imgy; view touchlistener; sqlitedatabase db; byte[] imgdata1; cursor cur; int pixelx, pixely; public static final string db_name = "new.db"; public static final string table_name = "sample"; public static final int db_version = 1; public static final string name = "name"; public static final string no = "no"; public static final string img = "img"; public static final string pixelx = "posx"; public static final string pixely = "posy"; @suppresslint("newapi") public void retrieve() { img = (imageview) findviewbyid(r.id.imageview1); db = openorcreatedatabase(db_name, context.mode_world_writeable, null); cur = db.query(true, table_name, new string[]{name, no, img, pixelx, pixely}, null, null, null, null, null, null, null); cur.movetofirst(); imgdata1 = cur.getblob(cur.getcolumnindex("img")); img.setimagebitmap(bitmapfactory.decodebytearray(imgdata1, 0, imgdata1.length)); toast.maketext(getapplicationcontext(), "image retreived", 100).show(); cur.close(); db.close(); } public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.login); retrieve(); } }
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