Thanks for replying so quickly. On Fri, Dec 17, 2010 at 1:59 PM, Kostya Vasilyev <[email protected]> wrote:
> What is the output of logcat under "Caused by:" ? > > I see no "Caused by" in the logcat output, here is the complete output http://pastebin.com/VMsrK0Db > And don't extend your JavaScript callback from "test". > > Activities represent "UI screens" and are managed by Android. Defining and > instantiating one yourself, bypassing the framework, is a recipe for > disaster. > > Sorry, i am new to developing for android, what exactly do you mean ? What could be a walk around? Cuil > -- Kostya > > 17.12.2010 11:14, cuil yahoo пишет: > > This thing has started to irritate me, > I have copied the code below, > > > this is test.java, the main class of my program. > > package android.test; > > > import android.app.Activity; > import android.content.ContentValues; > import android.database.sqlite.*; > import android.os.Bundle; > import android.util.*; > import android.webkit.WebView; > import android.webkit.WebViewClient; > import seeta.socialcalc.R; > > class JavaScriptInterface extends test{ > String saveme; > public JavaScriptInterface(test test) { > // TODO Auto-generated constructor stub > } > > public void gotit(String s) > { > saveme=s; > final String got="gotit"; > insertvalues(s); > Log.d(got, s); > } > > > > private void insertvalues(String s) > { > databaseopener dataBasehelper = new databaseopener(this); > SQLiteDatabase db = dataBasehelper.getWritableDatabase(); > ContentValues cv = new ContentValues(); > cv.put(databaseopener.data, "data"); > db.insert("textdata", databaseopener.data, cv); > db.close(); > > } > > } > > public class test extends Activity { > /** Called when the activity is first created. */ > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.main); > > Log.d("test" , "got till here1"); > WebView web = (WebView) findViewById(R.id.webView); > web.getSettings().setJavaScriptEnabled(true); > web.getSettings().setJavaScriptCanOpenWindowsAutomatically(false); > web.getSettings().setPluginsEnabled(false); > web.getSettings().setSupportMultipleWindows(false); > web.getSettings().setSupportZoom(false); > web.setVerticalScrollBarEnabled(false); > web.setHorizontalScrollBarEnabled(false); > web.addJavascriptInterface(new JavaScriptInterface(this), > "Android"); > > //Our application's main page will be loaded > web.loadUrl("file:///android_asset/index.html"); > > web.setWebViewClient(new WebViewClient() { > @Override public boolean shouldOverrideUrlLoading(WebView view, > String url) { > return false; > } > }); > } > } > > > The next class helps implement databases, > > > package android.test; > > import android.content.Context; > import android.database.sqlite.SQLiteDatabase; > import android.database.sqlite.SQLiteDatabase.CursorFactory; > import android.database.sqlite.SQLiteOpenHelper; > import android.database.SQLException; > > > > > > public class databaseopener extends SQLiteOpenHelper > { > > private static final String database_name = "mydatabase.db"; > static String data = "Data"; > > > > public databaseopener(Context context) > { > super(context, database_name, null, 1); > // TODO Auto-generated constructor stub > > } > @Override > public void onCreate(SQLiteDatabase db) { > > android.util.Log.d("database", "database about to be created"); > db.execSQL( "CREATE TABLE textdata (_id INTEGER PRIMARY KEY > AUTOINCREMENT, data TEXT);"); > // TODO Auto-generated method stub > > } > > @Override > public void onUpgrade(SQLiteDatabase db, int oldVersion, int > newVersion) { > > // i don't want to upgrade right now, first want the database to be > created. > // TODO Auto-generated method stub > > } > > } > > > Any Pointers on errors would be appreciated. > > Cuil > > > On Fri, Dec 17, 2010 at 1:34 PM, Kostya Vasilyev <[email protected]>wrote: > >> It looks like a problem in your JavaScriptInterface.insertValues. >> >> There should be more in the logcat below what you posted, starting with >> "Caused by:". >> >> -- Kostya >> >> >> 17.12.2010 10:31, cuil yahoo пишет: >> >> I went through some online material both blogs and videos, and managed >> to rectify the code. However, now i get a NullPointerException, >> >> 12-17 12:48:44.184: INFO/dalvikvm(327): at >> android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:203) >> 12-17 12:48:44.194: INFO/dalvikvm(327): at >> android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:98) >> 12-17 12:48:44.194: INFO/dalvikvm(327): at >> android.test.JavaScriptInterface.insertvalues(test.java:32) >> 12-17 12:48:44.224: INFO/dalvikvm(327): at >> android.test.JavaScriptInterface.gotit(test.java:23) >> 12-17 12:48:44.224: INFO/dalvikvm(327): at >> android.webkit.WebViewCore.nativeTouchUp(Native Method) >> 12-17 12:48:44.224: INFO/dalvikvm(327): at >> android.webkit.WebViewCore.nativeTouchUp(Native Method) >> 12-17 12:48:44.244: INFO/dalvikvm(327): at >> android.webkit.WebViewCore.access$3300(WebViewCore.java:52) >> 12-17 12:48:44.254: INFO/dalvikvm(327): at >> android.webkit.WebViewCore$EventHub$1.handleMessage(WebViewCore.java:1150) >> 12-17 12:48:44.264: INFO/dalvikvm(327): at >> android.os.Handler.dispatchMessage(Handler.java:99) >> 12-17 12:48:44.304: INFO/dalvikvm(327): at >> android.os.Looper.loop(Looper.java:123) >> 12-17 12:48:44.304: INFO/dalvikvm(327): at >> android.webkit.WebViewCore$WebCoreThread.run(WebViewCore.java:621) >> 12-17 12:48:44.334: INFO/dalvikvm(327): at >> java.lang.Thread.run(Thread.java:1096) >> >> >> It would be helpful if someone could provide some pointers to handle this. >> I could use catch and finally blocks, but the database should open atleast. >> >> Thanks. >> >> Cuil >> >> >> >> On Thu, Dec 16, 2010 at 6:23 PM, cuil yahoo <[email protected]> wrote: >> >>> Hello, >>> >>> I am trying to use a database to store a huge text in it serially(using a >>> primary key, for easy searching). >>> >>> I have already done the following things, >>> >>> 1. Created a SQLite database(named database) using the SQLite Database >>> Browser, and have imported that to my assets folder in Eclipse. The database >>> has two fields one _id(primarykey) and saveme(the text field). >>> >>> 2. Now, i want to write stuff in this database, however when i try to >>> open the database using the code below, i get a SQLite Code 14 type of an >>> error( which on a google result showed up error on opening of database). >>> >>> SQLiteDatabase writedatabase = null; >>> writedatabase.openDatabase("file:///android_asset/database",null,0); >>> writedatabase.execSQL("INSERT INTO " + "database" + " Values ('1', >>> 'first')"); >>> >>> >>> It would be really very helpful, if someone could please point the error >>> in the steps. >>> >>> Thanks. >>> >>> Cuil >>> >>> >>> >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Android Developers" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en >> >> >> >> -- >> Kostya Vasilyev -- WiFi Manager + pretty widget -- >> http://kmansoft.wordpress.com >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Android Developers" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected]<android-developers%[email protected]> >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en >> > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > > > > -- > Kostya Vasilyev -- WiFi Manager + pretty widget -- > http://kmansoft.wordpress.com > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected]<android-developers%[email protected]> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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