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Android Build a Self-Destructing Message Android App Adding Users Using Parse.com Logging In

Posted by LeJacque Gillespie
LeJacque Gillespie
3,990 Points

Logging in Error

I cut and pasted just like the video stated, I'm on Android Studio, but I received a BUNCH of errors. I worked through most of them, but keep getting these errors in my loginactivity2 file:

package lejacque1.ribbit2;

import android.app.AlertDialog; import android.content.Intent; import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView;

import com.parse.LogInCallback; import com.parse.ParseException; import com.parse.ParseUser; import com.parse.SignUpCallback;

public class LoginActivity2Activity extends ActionBarActivity {

protected EditText mUsername;
protected EditText mPassword;
protected Button mLoginButton;

protected TextView mSignUpTextView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login_activity2);

    mSignUpTextView = (TextView) findViewById(R.id.signUpText);
    mSignUpTextView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(LoginActivity2Activity.this,
                    SignUpActivity2Activity.class);
            startActivity(intent);

        }
    });

    mUsername = (EditText) findViewById(R.id.usernameField);
    mPassword = (EditText) findViewById(R.id.passwordField);
    mLoginButton = (Button) findViewById(R.id.loginButton);
    mLoginButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            String username = mUsername.getText().toString();
            String password = mPassword.getText().toString();

            username = username.trim();
            password = password.trim();

            if (username.isEmpty() || password.isEmpty()) {
                AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity2Activity.this);
                builder.setMessage(R.string.login_error_message)
                        .setTitle(R.string.login_error_title)
                        .setPositiveButton(android.R.string.ok, null);

                AlertDialog dialog = builder.create();
                dialog.show();
            } else {
                ParseUser.logInInBackground(username, password, new LogInCallback() {
                    @Override
                    public void done(ParseUser user, ParseException e) {
                        if (e == null) {
                            Intent intent = new Intent(LoginActivity2Activity.this, MainActivity.class);
                            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                            startActivity(intent);
                        } else {
                            AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity2Activity.this);
                            builder.setMessage(e.getMessage())
                                    .setTitle(R.string.login_error_title)
                                    .setPositiveButton(android.R.string.ok, null);

                            AlertDialog dialog = builder.create();
                            dialog.show();
                        }
                    }
                });

            }
        }
    });

    @Override
    public boolean onCreateOptionsMenu; (Menu menu){
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_login_activity2, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected; (MenuItem MenuItem item);
    item){
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);

The errors are: @Override not applicable to local variable, ')' expected, ';' expected, Modifier public not allowed here, Unexpected token, Variable 'item' is never assigned, Cannot return a value from a method with void result type, and Variable' onOptionsItemSelected' is never used

The part of the code with the error is:

@Override public boolean onCreateOptionsMenu; (Menu menu){ // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_login_activity2, menu); return true; }

    @Override
    public boolean onOptionsItemSelected; (MenuItem MenuItem item);
    item){
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);

Thanks for any help.

LeJacque Gillespie
LeJacque Gillespie
3,990 Points

I tried it but its still showing the same errors.

LeJacque Gillespie
LeJacque Gillespie
3,990 Points

I stand corrected, I went through it again and caught a few. It fixed the poronle. Thanks.

Sanjiv Saha
Sanjiv Saha
1,110 Points
Sanjiv Saha
Sanjiv Saha
1,110 Points

It gives a ClassCastException..instead of extending FragmentActivity in MainActivity extend ActionBarActivity and make this change in the MainActivity..just paste this code in the in the MainActivity where a very similar code exists:

for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) { // Create a tab with text corresponding to the page title defined by // the adapter. Also specify this Activity object, which implements // the TabListener interface, as the callback (listener) for when // this tab is selected. actionBar.addTab( actionBar.newTab() .setText(mSectionsPagerAdapter.getPageTitle(i)) //Edited to change from ActionBarActivity to FragmentActivity .setTabListener(this)); }