After a user registers in the signup activity page I want them to be able to press the login button in the login page and then for the app to go to a profile activity page. However, the app crashes after typing in the username and password and pressing the login button in the login page. Here is the sets of codes and this first set is the Login Page code in “LoginPageActivity.java” activity.
package com.example.xxxx.safetyxxxxxxx;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Patterns;
import android.view.View;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
public class LoginPageActivity extends AppCompatActivity implements View.OnClickListener{
FirebaseAuth mAuth;
EditText editTextEmail, editTextPassword;
ProgressBar progressBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login_page);
mAuth = FirebaseAuth.getInstance();
editTextEmail = findViewById(R.id.editTextEmail);
editTextPassword= (EditText) findViewById(R.id.editTextPassword);
progressBar = (ProgressBar) findViewById(R.id.progressbar);
findViewById(R.id.textViewSignUp).setOnClickListener(this);
findViewById(R.id.buttonLogin).setOnClickListener(this);
}
private void userLogin(){
String email = editTextEmail.getText().toString().trim();
String password = editTextPassword.getText().toString().trim();
if(email.isEmpty()){
editTextEmail.setError("Email is required");
editTextEmail.requestFocus();
return;
}
if(!Patterns.EMAIL_ADDRESS.matcher(email).matches()){
editTextEmail.setError("Please enter a valid email");
editTextEmail.requestFocus();
return;
}
if(password.isEmpty()){
editTextPassword.setError("Password is required");
editTextPassword.requestFocus();
return;
}
if(password.length()<6){
editTextPassword.setError("Minimum length of password should be 6");
editTextPassword.requestFocus();
return;
}
progressBar.setVisibility(View.VISIBLE);
mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
progressBar.setVisibility(View.GONE);
if (task.isSuccessful()) {
Intent intent = new Intent(LoginPageActivity.this, ProfileActivity.class);
startActivity(intent);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
finish();
} else {
Toast.makeText(getApplicationContext(), task.getException().getMessage(), Toast.LENGTH_SHORT).show();
}
}
});
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.textViewSignUp:
startActivity(new Intent(this, SignUpActivity.class));
break;
case R.id.buttonLogin:
userLogin();
break;
}
}
}
Here is the profile activity called “ProfileActivity.java”
package com.example.xxxx.safetyxxxxxxx;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class ProfileActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile);
}
}
Here is the android manifest code. I have tried many different variations of declaring the ProfileActivity class in this manifest based on research and previous issues in the past with the same logcat error.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.xxxx.safetyxxxxxxx">
<application
android:name=".Database"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".LoginPageActivity"
android:label="@string/app_name"/>
<activity android:name=".Main2Activity" />
<activity
android:name=".SignUpActivity"
android:label="@string/app_name">
</activity>
<activity android:name=".ProfileActivity"
android:label="@string/app_name"/>
</application>
</manifest>
Here is the logcat error
12-02 12:04:56.008 2644-2644/com.example.xxxx.safetyxxxxxxx E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.xxxx.safetyxxxxxxx, PID: 2644
android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.xxxx.safetyxxxxxxx/com.example.xxxx.safetyxxxxxxx.ProfileActivity}; have you declared this activity in your AndroidManifest.xml?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1933)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1616)
at android.app.Activity.startActivityForResult(Activity.java:4488)
at android.support.v4.app.BaseFragmentActivityApi16.startActivityForResult(BaseFragmentActivityApi16.java:54)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:67)
at android.app.Activity.startActivityForResult(Activity.java:4446)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:720)
at android.app.Activity.startActivity(Activity.java:4807)
at android.app.Activity.startActivity(Activity.java:4775)
at com.example.xxxx.safetyxxxxxxx.LoginPageActivity$1.onComplete(LoginPageActivity.java:79)
at com.google.android.gms.tasks.zzf.run(Unknown Source:23)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Finally in case it is needed here is the loginpage layout code called “activity_login_page.xml”
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".LoginPageActivity">
<TextView
android:id="@+id/textView2"
android:layout_width="0dp"
android:layout_height="53dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Hi, Welcome to Safety xxxxxxx Please Login or Signup"
android:textAlignment="center"
android:textColor="@android:color/holo_green_dark"
android:textSize="20sp"
app:layout_constraintBottom_toTopOf="@+id/buttonLogin"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.66"></TextView>
<Button
android:id="@+id/buttonLogin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Login"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.87" />
<EditText
android:id="@+id/editTextEmail"
android:layout_width="346dp"
android:layout_height="50dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:ems="10"
android:hint="email"
android:inputType="textEmailAddress"
app:layout_constraintBottom_toTopOf="@+id/editTextPassword"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/textView2"
app:layout_constraintVertical_bias="0.95" />
<EditText
android:id="@+id/editTextPassword"
android:layout_width="346dp"
android:layout_height="50dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:ems="10"
android:inputType="textPassword"
android:hint=" Password"
app:layout_constraintBottom_toTopOf="@+id/buttonLogin"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView2"
app:layout_constraintVertical_bias="0.87" />
<ImageView
android:id="@+id/imageView2"
android:layout_width="219dp"
android:layout_height="229dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toTopOf="@+id/editTextEmail"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.503"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.233"
app:srcCompat="@drawable/safetyxxx" />
<TextView
android:id="@+id/textViewSignUp"
android:layout_width="345dp"
android:layout_height="35dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Do Not Have An Account? Click Here"
android:textAlignment="center"
android:textColor="@android:color/holo_green_dark"
android:textSize="20sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/buttonLogin" />
<android.support.v4.widget.ContentLoadingProgressBar
android:id="@+id/progressbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:visibility="gone"/>
</android.support.constraint.ConstraintLayout>
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Answer
After many tries all I needed to do was press the rebuild project button. It worked perfectly after that.
Thanks for all that tried to help.