(I assume you are using the Eclipse IDE with android.)
I am a novice too, so of limited help. But I do know that your
"Log.w() "statements don't print in the console "view", they print in
the LogCat "view" within the DDMS "perspective". (Console is also a
view within the DDMS perspective.) To see the Log printouts, I think
you have to have the emulator itself selected in the Devices "view".
(If you don't have the emulator selected, I think the LogCat doesn't
show you anything...)
Jim
On Oct 12, 9:45 am, JavaAndroid <[EMAIL PROTECTED]> wrote:
> Hi All,
> I m a novice in Google Android.. Just started with couple of tutorials
> present in Google Android Documentation page.
> I have modified the NotePad application present there. I have four
> textfields namely, employeeName,employeeAge,
> employeeQualification, employeeDept.
> I could insert a new record and delete an existing record, but i m
> facing problem in editing an existing record. When i click a record it
> says, the Application EmployeeInformation has stopped unexpectedly.
> Here is my EmployeeInfo class
> package com.dreamapp.employeeinfo.activity;
>
> import android.app.ListActivity;
> import android.content.Intent;
> import android.database.Cursor;
> import android.os.Bundle;
> import android.util.Log;
> import android.view.Menu;
> import android.view.MenuItem;
> import android.view.View;
> import android.widget.ListView;
> import android.widget.SimpleCursorAdapter;
>
> import com.dreamapp.employeeinfo.util.EmployeeDAO;
>
> public class EmployeeInfo extends ListActivity {
> private static final int ACTIVITY_CREATE =0;
> private static final int ACTIVITY_EDIT =1;
>
> private static final int INSERT_ID = Menu.FIRST;
> private static final int DELETE_ID = Menu.FIRST+1;
>
> private EmployeeDAO employee;
> private Cursor mCursor;
>
> private static final String TAG="EmployeeInfo";
> /** Called when the activity is first created. */
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.employee_list);
> employee = new EmployeeDAO(this);
> employee.open();
> fillData();
> }
>
> public void fillData(){
> mCursor = employee.fetchAllEmployeeInformation();
> startManagingCursor(mCursor);
>
> String[] from = new String[] {EmployeeDAO.EMP_NAME};
>
> int[] to = new int[] {R.id.text1};
> SimpleCursorAdapter employeeList =
> new SimpleCursorAdapter(this, R.layout.employee_row,
> mCursor,from, to);
> setListAdapter(employeeList);
> }
>
> public boolean onCreateOptionsMenu(Menu menu){
> super.onCreateOptionsMenu(menu);
> menu.add(0, INSERT_ID, 0, R.string.menu_insert);
> menu.add(0, DELETE_ID, 0, R.string.menu_delete);
> return true;
> }
>
> public boolean onMenuItemSelected(int featureId, MenuItem item){
> switch(item.getItemId()){
> case INSERT_ID:
> insertEmployeeInformation();
> return true;
> case DELETE_ID:
> employee.deleteEmployeenformation(getListView().
> getSelectedItemId());
> fillData();
> return true;
> }
> return super.onMenuItemSelected(featureId, item);
> }
>
> public void insertEmployeeInformation(){
> Intent i = new Intent(this,EmployeeEdit.class);
> startActivityForResult(i, ACTIVITY_CREATE);
> }
>
> protected void onListItemClick(ListView l, View v, int position,
> long id){
> super.onListItemClick(l, v, position, id);
> Cursor c = mCursor;
> Log.w(TAG, "Position in the List "+position);
> c.moveToPosition(position);
> Intent i = new Intent(this,EmployeeEdit.class);
> i.putExtra(EmployeeDAO.KEY_ROW_ID, id);
> i.putExtra(EmployeeDAO.EMP_NAME, c.getString(
> c.getColumnIndexOrThrow(EmployeeDAO.EMP_NAME)));
> i.putExtra(EmployeeDAO.EMP_AGE, id);
> i.putExtra(EmployeeDAO.EMP_QUALIFICATION, c.getInt(
>
> c.getColumnIndexOrThrow(EmployeeDAO.EMP_QUALIFICATION)));
> i.putExtra(EmployeeDAO.EMP_QUALIFICATION, c.getString(
>
> c.getColumnIndexOrThrow(EmployeeDAO.EMP_QUALIFICATION)));
> i.putExtra(EmployeeDAO.EMP_DEPT, c.getString(
> c.getColumnIndexOrThrow(EmployeeDAO.EMP_DEPT)));
> startActivityForResult(i, ACTIVITY_EDIT);
> }
>
> protected void onActivityResult(int requestCode, int resultCode,
> Intent intent){
> super.onActivityResult(requestCode, resultCode, intent);
> Bundle extras = intent.getExtras();
> switch(requestCode){
> case ACTIVITY_CREATE:
> String employeeName = extras.getString(EmployeeDAO.EMP_NAME);
> int employeeAge = extras.getInt(EmployeeDAO.EMP_NAME);
> String employeeQualification =
> extras.getString(EmployeeDAO.EMP_QUALIFICATION);
> String employeeDept = extras.getString(EmployeeDAO.EMP_DEPT);
> employee.insertEmployeeInformation(employeeName, employeeAge,
> employeeQualification, employeeDept);
> fillData();
> break;
> case ACTIVITY_EDIT:
> Long rowId = extras.getLong(EmployeeDAO.KEY_ROW_ID);
> if(rowId != null){
> String updateEmployeeName =
> extras.getString(EmployeeDAO.EMP_NAME);
> int updateEmployeeAge =
> extras.getInt(EmployeeDAO.EMP_NAME);
> String updateEmployeeQualification =
> extras.getString(EmployeeDAO.EMP_QUALIFICATION);
> String updateEmployeeDept =
> extras.getString(EmployeeDAO.EMP_DEPT);
> employee.updateEmployeeInformation(rowId,
> updateEmployeeName,
> updateEmployeeAge,
> updateEmployeeQualification,
> updateEmployeeDept);
> fillData();
> break;
> }
> }
>
> }
>
> }
>
> and My EmployeeEdit class
>
> package com.dreamapp.employeeinfo.activity;
>
> import com.dreamapp.employeeinfo.util.EmployeeDAO;
>
> import android.app.Activity;
> import android.content.Intent;
> import android.os.Bundle;
> import android.view.View;
> import android.widget.Button;
> import android.widget.EditText;
> import android.util.Log;
>
> public class EmployeeEdit extends Activity {
>
> public EditText mEmployeeName;
> public EditText mEmployeeAge;
> public EditText mEmployeeQualification;
> public EditText mEmployeeDept;
> public Long mRowId;
>
> public static final String TAG = "EmployeeEdit";
>
> protected void onCreate(Bundle savedInstanceState){
> super.onCreate(savedInstanceState);
> setContentView(R.layout.employee_edit);
> Log.w(TAG, "OnCreate Method in EmployeeEdit Class");
> mEmployeeName = (EditText) findViewById(R.id.name);
> mEmployeeAge = (EditText) findViewById(R.id.age);
> mEmployeeQualification = (EditText)
> findViewById(R.id.qualification);
> mEmployeeDept = (EditText) findViewById(R.id.dept);
>
> Button confirmButton = (Button) findViewById(R.id.confirm);
> mRowId = null;
> Bundle extras = getIntent().getExtras();
> if(extras !=null){
> String name = extras.getString(EmployeeDAO.EMP_NAME);
> int age = extras.getInt(EmployeeDAO.EMP_AGE);
> String qualification =
> extras.getString(EmployeeDAO.EMP_QUALIFICATION);
> String dept = extras.getString(EmployeeDAO.EMP_DEPT);
> mEmployeeName.setText(name);
> mEmployeeAge.setText(age);
> mEmployeeQualification.setText(qualification);
> mEmployeeDept.setText(dept);
> Log.w(TAG, "Preparing the View");
> }
>
> confirmButton.setOnClickListener(new View.OnClickListener(){
>
> public void onClick(View v) {
> Log.w(TAG, "OnClick Button Listener");
> Bundle bundle = new Bundle();
> bundle.putString(EmployeeDAO.EMP_NAME,
> mEmployeeName.getText().toString());
> bundle.putString(EmployeeDAO.EMP_AGE,
> mEmployeeAge.getText().toString());
> bundle.putString(EmployeeDAO.EMP_QUALIFICATION,
> mEmployeeQualification.getText().toString());
> bundle.putString(EmployeeDAO.EMP_DEPT,
> mEmployeeDept.getText().toString());
> Log.w(TAG, "Values Present in Bundle"+bundle);
> if (mRowId != null) {
> bundle.putLong(EmployeeDAO.KEY_ROW_ID, mRowId);
> }
> Intent mIntent = new Intent();
> mIntent.putExtras(bundle);
> setResult(RESULT_OK, mIntent);
> finish();
>
> }
>
> } );
> }
>
> }
>
> and finally my EmployeeDAO class
>
> /*
> * This class Primarily takes care of Inserting, Updating and
> Selecting
> * and Deleting an Employee information. Basic CRUD operations are
> * covered here
> * @author Sabari
> */
>
> package com.dreamapp.employeeinfo.util;
>
> import android.content.ContentValues;
> import android.content.Context;
> import android.database.Cursor;
> import android.database.SQLException;
> import android.database.sqlite.SQLiteDatabase;
> import android.database.sqlite.SQLiteOpenHelper;
> import android.util.Log;
>
> public class EmployeeDAO {
>
> public static final String EMP_NAME = "employeeName";
> public static final String EMP_AGE = "employeeAge";
> public static final String EMP_QUALIFICATION =
> "employeeQualification";
> public static final String EMP_DEPT = "employeeDept";
> public static final String KEY_ROW_ID = "_id";
>
> private static final String TAG="EmployeeDAO";
> private DatabaseHelper mDbHelper;
> private SQLiteDatabase mDb;
>
> /*
> * Variables needed for Database
> *
> */
> private static final String DATABASE_CREATE =
> "create table employeeMaster (_id integer primary key
> autoincrement, "
> + "employeeName text not null, employeeAge int not null," +
> "employeeQualification text not null, employeeDept text not
> null);";
> private static final String DATABASE_NAME = "data";
> private static final String DATABASE_TABLE = "employeeMaster";
> private static final int DATABASE_VERSION = 2;
>
> private final Context mCtx;
>
> private static class DatabaseHelper extends SQLiteOpenHelper{
>
> DatabaseHelper(Context context){
> super(context, DATABASE_NAME, null, DATABASE_VERSION);
> }
>
> @Override
> public void onCreate(SQLiteDatabase db) {
> db.execSQL(DATABASE_CREATE);
> }
>
> @Override
> public void onUpgrade(SQLiteDatabase db, int oldVersion, int
> newVersion) {
> Log.w(TAG, "Upgrading database from version " +
> oldVersion + " to "
> + newVersion + ", which will destroy all old
> data");
> db.execSQL("DROP TABLE IF EXISTS employeeMaster");
> }
> }
>
> public EmployeeDAO(Context ctx){
> this.mCtx = ctx;
> }
>
> public EmployeeDAO open() throws SQLException{
> mDbHelper = new DatabaseHelper(mCtx);
> mDb = mDbHelper.getWritableDatabase();
> return this;
> }
>
> public void close(){
> mDbHelper.close();
> }
>
> public long insertEmployeeInformation(String employeeName, int
> employeeAge,
> String employeeQualification,String
> employeeDept){
> ContentValues initiaValues = new ContentValues();
> initiaValues.put(EMP_NAME, employeeName);
> initiaValues.put(EMP_AGE, employeeAge);
> initiaValues.put(EMP_QUALIFICATION, employeeQualification);
> initiaValues.put(EMP_DEPT, employeeDept);
> Log.w(TAG, " Values Before Inserting an Employee Information"
> +
> initiaValues);
> return mDb.insert(DATABASE_TABLE, null, initiaValues);
> }
>
> public boolean deleteEmployeenformation(long rowId){
> Log.w(TAG, "Deleting this Employee Information "+ rowId);
> return mDb.delete(DATABASE_TABLE, KEY_ROW_ID + "=" + rowId ,
> null) >
> 0;
> }
>
> public Cursor fetchAllEmployeeInformation(){
> Log.w(TAG, "Fetching all EmployeeInformation from DB");
> return mDb.query(DATABASE_TABLE, new String[]
> {KEY_ROW_ID,EMP_NAME,
> EMP_AGE,EMP_QUALIFICATION,EMP_DEPT}, null,
> null, null, null,
> null);
> }
>
> public Cursor fetchEmployeeInformation(long rowId){
> Cursor mCursor =
> mDb.query(DATABASE_TABLE, new
> String[] {KEY_ROW_ID,EMP_NAME,
> EMP_AGE,EMP_QUALIFICATION,EMP_DEPT},
> KEY_ROW_ID + "=" +
> rowId,null, null, null, null, null);
> if(mCursor!= null){
> mCursor.moveToFirst();
> }
> return mCursor;
> }
>
> public boolean updateEmployeeInformation(long rowId, String
> employeeName,
> int employeeAge, String employeeQualification, String
> employeeDept)
> {
> ContentValues updateValues = new ContentValues();
> updateValues.put(EMP_NAME, employeeName);
> updateValues.put(EMP_AGE, employeeAge);
> updateValues.put(EMP_QUALIFICATION, employeeQualification);
> updateValues.put(EMP_DEPT, employeeDept);
> Log.w(TAG, "Updating this Information "+updateValues);
> return mDb.update(DATABASE_TABLE, updateValues , KEY_ROW_ID +
> "=" +
> rowId , null) > 0;
>
> }
>
> }
>
> and one more thing is i have added many logger statements throughout
> my application, but these aren`t getting printed on Anroid Console. Is
> there any other technique to print these debuggigng statements.
> Log.w(TAG, "Position in the List "+position);
>
> Any help for the above mentioned issue is highly appreciated...
>
> Thanks in Advance
>
> Thanks
> JavaAndroid
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