Re: [android-developers] database insertion problem
Use adb logcat, DDMS, or the DDMS perspective in Eclipse to examine
LogCat and look at the stack trace associated with your crash.
On Thu, Aug 18, 2011 at 6:44 AM, josh.bash wrote:
> i am trying to create a user for my application. but after taking the
> appropriate details when i press the confirm button my program
> crashes. can anybody tell me what is the problem???
>
> here is the code for that activity:-
>
> package kumar.avinash.pbi.learnoid;
>
> import android.app.Activity;
> import android.content.Intent;
> import android.database.Cursor;
> import android.os.Bundle;
> import android.view.View;
> import android.widget.Button;
> import android.widget.EditText;
>
> @SuppressWarnings("unused")
> public class EditUser extends Activity {
> private static EditText mEditUserId;
> private static EditText mEditUserPass;
> private static Long mRowId;
> private static LearnoidDbAdapter mDbHelper;
> private static String user_id;
> private static String pass;
>
> @Override
> protected void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> mDbHelper = new LearnoidDbAdapter(this);
> mDbHelper.open();
> if (mRowId == null) {
> Bundle extras = getIntent().getExtras();
> mRowId = (extras != null) ?
> extras.getLong(LearnoidDbAdapter.KEY_ROWID) :
> null;
> }
>
> setContentView(R.layout.user_edit);
> setTitle("create user");
>
> mEditUserId = (EditText) findViewById(R.id.user_id);
> user_id = mEditUserId.toString();
> mEditUserPass = (EditText) findViewById(R.id.pass);
> pass = mEditUserPass.toString();
>
> Button confirmButton = (Button) findViewById(R.id.confirm);
> mRowId = (savedInstanceState == null) ? null :
> (Long)
> savedInstanceState.getSerializable(LearnoidDbAdapter.KEY_ROWID);
>
> populateFields();
>
> confirmButton.setOnClickListener(new View.OnClickListener() {
>
> public void onClick(View view) {
>
> setResult(RESULT_OK);
> finish();
> Intent edit_to_login = new Intent(EditUser.this,
> Login.class);
> startActivity(edit_to_login);
> }
>
> });
>
>
> }
>
> private void populateFields() {
> if (mRowId != null) {
> Cursor user = mDbHelper.fetchUser(mRowId);
> startManagingCursor(user);
> mDbHelper.createUser(user_id, pass);
> }
> }
>
> @Override
> protected void onPause() {
>
> super.onPause();
> saveState();
> }
> @Override
> protected void onResume() {
>
> super.onResume();
> //populateFields();
> }
> @Override
> protected void onSaveInstanceState(Bundle outState) {
>
> super.onSaveInstanceState(outState);
> saveState();
> outState.putSerializable(LearnoidDbAdapter.KEY_ROWID, mRowId);
> }
>
> private void saveState() {
> String user_id = mEditUserId.getText().toString();
> String user_pass = mEditUserPass.getText().toString();
>
> if (mRowId == null) {
> long id = mDbHelper.createUser(user_id, user_pass);
> if (id > 0) {
> mRowId = id;
> }
> } else {
> mDbHelper.updateUser(mRowId, user_id, user_pass);
> }
> }
>
> }
>
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[android-developers] database insertion problem
i am trying to create a user for my application. but after taking the
appropriate details when i press the confirm button my program
crashes. can anybody tell me what is the problem???
here is the code for that activity:-
package kumar.avinash.pbi.learnoid;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
@SuppressWarnings("unused")
public class EditUser extends Activity {
private static EditText mEditUserId;
private static EditText mEditUserPass;
private static Long mRowId;
private static LearnoidDbAdapter mDbHelper;
private static String user_id;
private static String pass;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mDbHelper = new LearnoidDbAdapter(this);
mDbHelper.open();
if (mRowId == null) {
Bundle extras = getIntent().getExtras();
mRowId = (extras != null) ?
extras.getLong(LearnoidDbAdapter.KEY_ROWID) :
null;
}
setContentView(R.layout.user_edit);
setTitle("create user");
mEditUserId = (EditText) findViewById(R.id.user_id);
user_id = mEditUserId.toString();
mEditUserPass = (EditText) findViewById(R.id.pass);
pass = mEditUserPass.toString();
Button confirmButton = (Button) findViewById(R.id.confirm);
mRowId = (savedInstanceState == null) ? null :
(Long)
savedInstanceState.getSerializable(LearnoidDbAdapter.KEY_ROWID);
populateFields();
confirmButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
setResult(RESULT_OK);
finish();
Intent edit_to_login = new Intent(EditUser.this,
Login.class);
startActivity(edit_to_login);
}
});
}
private void populateFields() {
if (mRowId != null) {
Cursor user = mDbHelper.fetchUser(mRowId);
startManagingCursor(user);
mDbHelper.createUser(user_id, pass);
}
}
@Override
protected void onPause() {
super.onPause();
saveState();
}
@Override
protected void onResume() {
super.onResume();
//populateFields();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
saveState();
outState.putSerializable(LearnoidDbAdapter.KEY_ROWID, mRowId);
}
private void saveState() {
String user_id = mEditUserId.getText().toString();
String user_pass = mEditUserPass.getText().toString();
if (mRowId == null) {
long id = mDbHelper.createUser(user_id, user_pass);
if (id > 0) {
mRowId = id;
}
} else {
mDbHelper.updateUser(mRowId, user_id, user_pass);
}
}
}
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