Android: App crashing after button clicked
Question
So, right now im working on a parking app. I want to make a dropdown menu for the vehicle type in the compound ticket subsystem. i can run the app smoothly, but when i click the button that will go to the compound ticket class, the app will crash.
Here is my XML:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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">
<EditText
android:id="@+id/etUserName"
android:layout_width="310dp"
android:layout_height="50sp"
android:background="@drawable/input_field"
android:ems="10"
android:fontFamily="@font/regular"
android:hint="Vehicle No"
android:inputType="textPersonName"
android:textColorHint="@color/gray"
app:layout_constraintBottom_toTopOf="@+id/autoComplete"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.485"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.915" />
<AutoCompleteTextView
android:id="@+id/autoComplete"
android:layout_width="310dp"
android:layout_height="50sp"
android:layout_marginBottom="24dp"
android:background="@drawable/input_field"
android:ems="10"
android:fontFamily="@font/regular"
android:hint="Type of Vehicle"
android:inputType="none"
android:textColorHint="@color/gray"
android:textSize="18sp"
app:layout_constraintBottom_toTopOf="@+id/placeoffence"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.495"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.979" />
<EditText
android:id="@+id/placeoffence"
android:layout_width="310dp"
android:layout_height="50sp"
android:background="@drawable/input_field"
android:ems="10"
android:fontFamily="@font/regular"
android:hint="Place of Offence"
android:inputType="textPersonName"
android:textColorHint="@color/gray"
app:layout_constraintBottom_toTopOf="@+id/regBtn"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.485"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.755" />
<Button
android:id="@+id/regBtn"
android:layout_width="310dp"
android:layout_height="50sp"
android:background="@drawable/button"
android:fontFamily="@font/bold"
android:text="Submit"
android:textAllCaps="false"
android:textColor="#FFFFFF"
android:textSize="18sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.514"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.891" />
<ImageView
android:id="@+id/imageView19"
android:layout_width="170dp"
android:layout_height="185dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0"
app:srcCompat="@drawable/ui1" />
<TextView
android:id="@+id/tv4"
android:layout_width="142dp"
android:layout_height="55dp"
android:fontFamily="@font/bold"
android:text="Enter \nTraffic Ticket"
android:textColor="@color/black"
android:textSize="22sp"
app:layout_constraintBottom_toTopOf="@+id/tv6"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.182"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.845" />
<TextView
android:id="@+id/tv6"
android:layout_width="287dp"
android:layout_height="54dp"
android:fontFamily="@font/light"
android:text="Please complete the traffic ticket details for students who violate the rules and laws at UTM."
android:textColor="@color/black"
android:textSize="14sp"
app:layout_constraintBottom_toTopOf="@+id/etUserName"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.395"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.72" />
</androidx.constraintlayout.widget.ConstraintLayout>
Here is my Compound Ticket class:
package com.example.depark.police;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Toast;
import com.example.depark.R;
public class CompoundTicket extends AppCompatActivity {
String[] vehicle = {"Proton","Perodua","Honda","Yamaha"};
AutoCompleteTextView autoCompleteTxt;
ArrayAdapter<String> adapterItems;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_compound_ticket);
autoCompleteTxt = findViewById(R.id.autoComplete);
adapterItems = new ArrayAdapter<String>(this,R.layout.list_type_of_vehicle,vehicle);
autoCompleteTxt.setAdapter(adapterItems);
autoCompleteTxt.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String item = parent.getItemAtPosition(position).toString();
Toast.makeText(getApplicationContext(),"Item: "+item,Toast.LENGTH_SHORT).show();
}
});
}
}
My home fragment:
package com.example.depark.police;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.Nullable;
import androidx.annotation.NonNull;
import androidx.cardview.widget.CardView;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProviders;
import com.example.depark.HomeViewModel;
import com.example.depark.R;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.squareup.picasso.Picasso;
public class PoliceHomeFragment extends Fragment implements View.OnClickListener{
private HomeViewModel homeViewModel;
private FirebaseStorage firebaseStorage;
private StorageReference storageReference;
private FirebaseAuth firebaseAuth;
private ImageView img;
private Button b1;
private CardView parkingCard, receiptCard, feeCard, valetCard;
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
homeViewModel =
ViewModelProviders.of(this).get(HomeViewModel.class);
View root = inflater.inflate(R.layout.police_home_fragment, container, false);
final TextView textView = root.findViewById(R.id.textView2);
homeViewModel.getText().observe(getViewLifecycleOwner(), new Observer<String>() {
@Override
public void onChanged(@Nullable String s) {
textView.setText(s);
}
});
firebaseStorage = FirebaseStorage.getInstance();
firebaseAuth = FirebaseAuth.getInstance();
img = root.findViewById(R.id.imageView2);
b1 = root.findViewById(R.id.btnCheck);
// defining cards
parkingCard = root.findViewById(R.id.eparking_card);
receiptCard = root.findViewById(R.id.receipt_card);
feeCard = root.findViewById(R.id.fee_card);
valetCard = root.findViewById(R.id.valet_card);
// add click listener to the cards
parkingCard.setOnClickListener(this);
receiptCard.setOnClickListener(this);
feeCard.setOnClickListener(this);
valetCard.setOnClickListener(this);
storageReference = firebaseStorage.getReference();
storageReference.child(firebaseAuth.getUid()).
child("Images/Profile Pic").
getDownloadUrl().
addOnSuccessListener(new OnSuccessListener<Uri>() {
@Override
public void onSuccess (Uri uri){
Picasso.get().load(uri).fit().centerCrop().into(img);
}
});
return root;
}
@Override
public void onClick(View view) {
Intent i;
switch (view.getId()) {
case R.id.eparking_card : i = new Intent (getActivity(), CompoundTicket.class); startActivity(i); break;
// case R.id.receipt_card : i = new Intent (getActivity(), PaymentListFragment.class); startActivity(i); break;
//case R.id.fee_card : i = new Intent (getActivity(), StudentListFragment.class); startActivity(i); break;
//case R.id.valet_card : i = new Intent (getActivity(), ValetListFragment.class); startActivity(i); break;
default:break;
}
}
}
the crash log:
FATAL EXCEPTION: main
Process: com.example.depark, PID: 30834
android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.depark/com.example.depark.police.CompoundTicket}; have you declared this activity in your AndroidManifest.xml, or does your intent not match its declared <intent-filter>?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:2197)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1839)
at android.app.Activity.startActivityForResult(Activity.java:5471)
at androidx.activity.ComponentActivity.startActivityForResult(ComponentActivity.java:712)
at android.app.Activity.startActivityForResult(Activity.java:5429)
at androidx.activity.ComponentActivity.startActivityForResult(ComponentActivity.java:693)
at android.app.Activity.startActivity(Activity.java:5927)
at androidx.core.content.ContextCompat$Api16Impl.startActivity(ContextCompat.java:830)
at androidx.core.content.ContextCompat.startActivity(ContextCompat.java:279)
at androidx.fragment.app.FragmentHostCallback.onStartActivityFromFragment(FragmentHostCallback.java:167)
at androidx.fragment.app.Fragment.startActivity(Fragment.java:1445)
at androidx.fragment.app.Fragment.startActivity(Fragment.java:1433)
at com.example.depark.police.PoliceHomeFragment.onClick(PoliceHomeFragment.java:92)
at android.view.View.performClick(View.java:7506)
at android.view.View.performClickInternal(View.java:7483)
at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0)
at android.view.View$PerformClick.run(View.java:29334)
at android.os.Handler.handleCallback(Handler.java:942)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7872)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
1 answers
solution1
0 2022-12-23 08:52:07
PROBLEM SOLVED. adding the CompoundTicket activity class to the AndroidManifest.xml
<activity android:name=".police.CompoundTicket" />
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