i have app measures distance between colored circles in live camera feed. i'm able string jni here. now, want save string database can't make work.
this db helper class:
public class databasehelperuback extends sqliteopenhelper { public static final string database_name="ubackrecords.db"; public static final string table_name="records_table"; public static final string col_0="id"; public static final string col_1="uback"; public databasehelperuback(context context) { super(context, database_name, null, 1); } @override public void oncreate(sqlitedatabase db) { db.execsql("create table " + table_name + " (id integer primary key autoincrement, uback text) "); } @override public void onupgrade(sqlitedatabase db, int oldversion, int newversion) { db.execsql("drop table if exist "+table_name); } //public boolean insertdata(string name, string date_today, string sleeve, string shoulder, string body_length, string cross_back, string bw_length, string bn_cuff, string inseam, string outseam){ public boolean insertdata(string uback){ sqlitedatabase db=this.getwritabledatabase(); contentvalues contentvalues = new contentvalues(); contentvalues.put(col_1,uback); long result = db.insert(table_name, null, contentvalues); if(result == -1) return false; else return true; } public boolean updatedata(string id, string uback){ sqlitedatabase db=this.getwritabledatabase(); contentvalues contentvalues = new contentvalues(); contentvalues.put(col_0,id); contentvalues.put(col_1,uback); db.update(table_name, contentvalues, "id = ?", new string[] { id } ); return true; } public cursor getalldata(){ sqlitedatabase db=this.getwritabledatabase(); cursor res = db.rawquery("select * "+table_name,null); return res; } } i made work on following class made work id=1 of table. not know how retrieve last row of table 1 updated/replaced (because live camera feed).
public class ubacktrackviewer extends sampleviewbase{ databasehelperuback mydb; private context mcontext; private int mframesize; private bitmap mbitmap; private int[] mrgba; public ubacktrackviewer(context context) { super(context); this.mcontext = context; mydb = new databasehelperuback(mcontext); } public string messageme2(string text) { system.out.println(text); mydb.updatedata("1", text); return text; } @override public boolean ontouchevent(motionevent event){ switch (event.getaction()) { case motionevent.action_down: mydb.insertdata(""); } static { system.loadlibrary("objtrack_opencv_jnii_uback"); } @override protected void onpreviewstared(int previewwidtd, int previewheight) { mframesize = previewwidtd * previewheight; mrgba = new int[mframesize]; mbitmap = bitmap.createbitmap(previewwidtd, previewheight, bitmap.config.argb_8888); } @override protected void onpreviewstopped() { if(mbitmap != null) { mbitmap.recycle(); mbitmap = null; } mrgba = null; } @override protected bitmap processframe(byte[] data) { int[] rgba = mrgba; ubackobjecttrack(getframewidth(), getframeheight(), data, rgba, loweractivity.bshowtresholded); //returnuback3(getframewidth(), getframeheight(), data, rgba, loweractivity.bshowtresholded); // returnuback(getframewidth(), getframeheight(), data, rgba, loweractivity.bshowtresholded); //returnuback2(getframewidth(), getframeheight(), data, rgba, loweractivity.bshowtresholded); bitmap bmp = mbitmap; bmp.setpixels(rgba, 0/* offset */, getframewidth() /* stride */, 0, 0, getframewidth(), getframeheight()); return bmp; } //public native void returnuback(int width, int height, byte yuv[], int[] rgba, boolean debug); // public native void returnuback2(int width, int height, byte yuv[], int[] rgba, boolean debug); //public native void returnuback3(int width, int height, byte yuv[], int[] rgba, boolean debug); public native void ubackobjecttrack(int width, int height, byte yuv[], int[] rgba, boolean debug); public native string ubackobjecttrack(); static { system.loadlibrary("objtrack_opencv_jnii_uback"); } }
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