Main Activity overlay with fragment

Main Activity overlay with fragment - java

I have a problem where when I call my fragment by pushing a button in main activity, its overlay with the main activity. It make both of them on top of each other. I would want the fragment to cover a part of the main activity so the item behind are not viewable. I already user replace() when I want to start the fragment but it still did not work. I can still see the main activity behind of the fragment like picture below:
I want to avoid using visible for the main activity because in my main project there is a lot of item (CalenderView, RecyclerView, etc) behind it.
Here is my main activity code:
public class MainActivity extends AppCompatActivity {
private Button mShowPaymentButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mShowPaymentButton = findViewById(R.id.show_payment_button);
/*FrameLayout blurContainer = findViewById(R.id.fragment_container);
Blurry.with(this)
.radius(25)
.sampling(2)
.onto(blurContainer);*/
mShowPaymentButton.setOnClickListener(v -> {
FragmentManager fragmentManager = getSupportFragmentManager();
BigDecimal amount = new BigDecimal("10.00");
PaymentFragment paymentFragment = PaymentFragment.newInstance(amount);
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.setCustomAnimations(R.anim.slide_in_from_top, R.anim.slide_out_to_top);
fragmentTransaction.replace(R.id.fragment_container, paymentFragment, paymentFragment.getTag());
//fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
});
}}
MainActivity xml:
<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"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="#+id/show_payment_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
Fragment code:
public class PaymentFragment extends Fragment {
private static final String ARG_AMOUNT = "amount";
private Button mPayButton;
private ProgressBar mProgressBar;
EditText mCardNumberEditText;
EditText mExpiryDateEditText;
EditText mCvvEditText;
ImageButton closeButton;
EditText mErrorTextView;
private BigDecimal amount;
public PaymentFragment() {
// Required empty public constructor
}
public static PaymentFragment newInstance(BigDecimal amount) {
PaymentFragment fragment = new PaymentFragment();
Bundle args = new Bundle();
args.putSerializable(ARG_AMOUNT, amount);
fragment.setArguments(args);
return fragment;
}
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_payment, container, false);
mPayButton = view.findViewById(R.id.pay_button);
//mProgressBar = view.findViewById(R.id.progress_bar);
mCardNumberEditText = view.findViewById(R.id.card_number_edit_text);
mExpiryDateEditText = view.findViewById(R.id.expiry_date_edit_text);
mCvvEditText = view.findViewById(R.id.cvv_edit_text);
//mErrorTextView = view.findViewById(R.id.error_text_view);
mPayButton = view.findViewById(R.id.pay_button);
closeButton = view.findViewById(R.id.close_button_payment);
amount = (BigDecimal) getArguments().getSerializable(ARG_AMOUNT);
mPayButton.setText("Pay RM "+amount);
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
closeButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
fragmentTransaction.remove(PaymentFragment.this).commit();
}
});
mPayButton.setOnClickListener(v -> {
// Show the progress bar
//mProgressBar.setVisibility(View.VISIBLE);
mPayButton.setEnabled(false);
String cardNumber = mCardNumberEditText.getText().toString();
String expiryDate = mExpiryDateEditText.getText().toString();
String cvv = mCvvEditText.getText().toString();
if (cardNumber.isEmpty() || expiryDate.isEmpty() || cvv.isEmpty()) {
//mErrorTextView.setText("Please enter all required fields.");
//mErrorTextView.setVisibility(View.VISIBLE);
} else {
/* mProgressBar.postDelayed(() -> {
mProgressBar.setVisibility(View.GONE);
mPayButton.setEnabled(true);
fragmentTransaction.remove(PaymentFragment.this);
fragmentTransaction.commit();
}, 2000);*/
fragmentTransaction.remove(this).commit();
}
});
TranslateAnimation animation = new TranslateAnimation(0, 0, -view.getHeight(), 0);
animation.setDuration(500);
view.startAnimation(animation);
return view;
}
}
fragment xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#590E0E0E"
android:orientation="vertical"
android:padding="16dp">
<ImageButton
android:id="#+id/close_button_payment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:backgroundTint="#AAAAAA"
android:src="#drawable/close_payment_button" />
<TextView
android:text="Add your payment information"
android:textSize="20sp"
android:textStyle="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"/>
<TextView
android:id="#+id/card_number_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Card number:" />
<EditText
android:id="#+id/card_number_edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="number" />
<TextView
android:id="#+id/expiry_date_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Expiry date:" />
<EditText
android:id="#+id/expiry_date_edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="date" />
<TextView
android:id="#+id/cvv_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="CVV:" />
<EditText
android:id="#+id/cvv_edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="number" />
<Button
android:id="#+id/pay_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Pay" />
<TextView
android:id="#+id/error_text_view"
android:layout_width="378dp"
android:layout_height="30dp"
android:textColor="#color/purple_200"
android:visibility="invisible" />
</LinearLayout>
Any advice and suggestion would really help. Thanks in advance. There is no error from my code but maybe can be optimize.

Change your activity_main.xml like:
<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"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
...
</androidx.constraintlayout.widget.ConstraintLayout>

Related

Showing created data from Activity in RecyclerView in a child fragment of TabLayout

I have a nav fragment section called GroupbookFragment which uses a TabLayout with 3 Tabs.
(GroupbookKrippeFragment, GroupbookHafenFragment & GroupbookKindergartenFragment)
Each Tab has a CardView with a RecyclerView in it. The goal is to have a global "Add Child" Button on the GroupbookFragment level, which forward you to another activity with a form where you can create a new child. After filling data & clicking a save button, you'll come back to the GroupbookFragmentview and the new created data from the form will show up in the correct CardView within one of the three corresponding fragments.
So far I successfully implemented all functionalities when the methods and "Add child" button are already IN the corresponding tab child fragment (e.g. GroupbookKrippeFragment). The problem here is, whenever I change the tab from the tabLayout, the "Add Child" button is moving away aswell. So after moving all methods & the button into the parent fragment GroupbookFragment I can navigate through all pages and fill the form & save, but the recyclerView won't update and show the new created data in the child's recyclerView anymore?!
Thanks in advance for any help! Here is the code view:
GroupbookFragment.java
public class GroupbookFragment extends Fragment {
// initializing elements
RecyclerView recyclerView;
ChildListAdapter childListAdapter;
List<Child> children = new ArrayList<>();
RoomDb database;
FloatingActionButton addChildBtn;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_groupbook, container, false);
// inflate the layout for GB Krippe fragment
View viewKrippe = inflater.inflate(R.layout.fragment_groupbook_krippe, container, false);
// link recycler view to correct element
recyclerView = viewKrippe.findViewById(R.id.recycler_view_krippe);
// Tab layout initialization
TabLayout tabLayout = view.findViewById(R.id.tabLayout);
ViewPager2 viewPager = view.findViewById(R.id.viewPager_groupBook);
GroupbookAdapter adapterGroupBook = new GroupbookAdapter(getChildFragmentManager(), getLifecycle());
viewPager.setAdapter(adapterGroupBook);
// set 3 Tab titles
tabLayout.addTab(tabLayout.newTab().setText("Krippe"));
tabLayout.addTab(tabLayout.newTab().setText("Hafen"));
tabLayout.addTab(tabLayout.newTab().setText("Kindergarten"));
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
viewPager.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
#Override
public void onPageSelected(int position) {
tabLayout.selectTab(tabLayout.getTabAt(position));
}
});
return view;
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
// add Child code
database = RoomDb.getInstance(getContext());
children = database.mainDAO().getAll();
updateRecycler(children);
// link var to app element & set on click route
addChildBtn = view.findViewById(R.id.child_add_btn);
addChildBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(GroupbookFragment.this.getContext(), AddChildActivity.class);
startActivityForResult(intent, 101);
}
});
}
#Override
public void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 101) {
if (resultCode == Activity.RESULT_OK) {
Child new_child = (Child) data.getSerializableExtra("child");
database.mainDAO().insert(new_child);
children.clear();
children.addAll(database.mainDAO().getAll());
childListAdapter.notifyDataSetChanged();
}
}
}
void updateRecycler(List<Child> children) {
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(GroupbookFragment.this.getContext()));
childListAdapter = new ChildListAdapter(GroupbookFragment.this.getContext(), children, childClickListener);
recyclerView.setAdapter(childListAdapter);
}
private final ChildClickListener childClickListener = new ChildClickListener() {
#Override
public void onClick(Child child) {
}
#Override
public void onLongClick(Child child, CardView cardView) {
}
};
}
GroupbookFragment.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"
tools:context=".Fragments.HomeFragment">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:tabIndicatorAnimationMode="elastic" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="#id/tabLayout">
<androidx.viewpager2.widget.ViewPager2
android:id="#+id/viewPager_groupBook"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
<!-- Add floating button to add child-->
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/child_add_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_margin="#dimen/margin_cardView"
android:backgroundTint="#color/green"
android:src="#drawable/ic_add_child"
app:tint="#color/white" />
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
GroupbookKrippeFragment.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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=".Fragments.Groupbook.GroupbookKrippeFragment">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<androidx.cardview.widget.CardView
android:id="#+id/groupBook_krippe_1"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_margin="#dimen/margin_cardView"
app:cardCornerRadius="#dimen/cornerRadius_Card"
app:cardElevation="#dimen/elevation_default"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toTopOf="#id/groupBook_krippe_2"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_weight="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/creme_500"
android:layout_weight="6"
android:padding="#dimen/padding_default">
<androidx.constraintlayout.widget.Guideline
android:id="#+id/guideline_group_1_start"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.1" />
<ImageView
android:id="#+id/ic_groupBook_krippe_1"
android:layout_width="#dimen/iconSize_groupBook_header"
android:layout_height="match_parent"
android:scaleType="fitCenter"
android:src="#drawable/ic_groupbook_krippe_1_logo"
app:tint="#color/white"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="#id/guideline_group_1_start"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
/>
<TextView
android:id="#+id/title_groupBook_krippe_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/margin_default"
android:text="Gruppe 1"
android:textAllCaps="true"
android:textSize="#dimen/textSize_groupBook_title"
android:textColor="#color/white"
android:fontFamily="#font/candy_beans"
app:layout_constrainedWidth="true"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toEndOf="#id/guideline_group_1_start"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toTopOf="#id/desc_groupBook_krippe_1"/>
<TextView
android:id="#+id/desc_groupBook_krippe_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/margin_default"
android:text="Gesamt: 12 | Anwesend: 10"
android:textSize="#dimen/textSize_groupBook_subTitle"
android:textColor="#color/white"
android:fontFamily="#font/candy_beans"
app:layout_constrainedWidth="true"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toEndOf="#id/guideline_group_1_start"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#id/title_groupBook_krippe_1"
app:layout_constraintBottom_toBottomOf="parent"/>
</androidx.constraintlayout.widget.ConstraintLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:padding="#dimen/padding_default"
android:orientation="vertical">
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TableRow>
<TextView
android:text="ID"
android:textStyle="bold"
android:gravity="center"
android:layout_weight="0.5"/>
<TextView
android:text="Vorname"
android:textStyle="bold"
android:gravity="center"
android:layout_weight="0.5"/>
<TextView
android:text="Nachname"
android:textStyle="bold"
android:gravity="center"
android:layout_weight="0.5"/>
<TextView
android:text="Geburtstag"
android:textStyle="bold"
android:gravity="center"
android:layout_weight="0.5"/>
<TextView
android:text="Geburtsort"
android:textStyle="bold"
android:gravity="center"
android:layout_weight="0.5"/>
<TextView
android:text="Konfession"
android:textStyle="bold"
android:gravity="center"
android:layout_weight="0.5"/>
<TextView
android:text="Nationalität"
android:textStyle="bold"
android:gravity="center"
android:layout_weight="0.5"/>
</TableRow>
</TableLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_view_krippe"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</androidx.recyclerview.widget.RecyclerView>
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>
</RelativeLayout>

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. following is my code:
public class UserChat extends AppCompatActivity {
private RecyclerView recyclerView;
private Button btnSend;
private EditText messageBox;
private TextView name_txt;
final ArrayList<ChatModel> chatModels = new ArrayList<>();
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super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_chat);
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following 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"
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android:layout_width="406dp"
android:layout_height="611dp"
android:paddingStart="15dp"
android:paddingTop="15dp"
app:layout_constrainedHeight="true"
app:layout_constraintBottom_toTopOf="#+id/view"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/toolbar"
app:layout_constraintVertical_bias="0.974" />
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android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#e0e0e0"
app:layout_constraintBottom_toTopOf="#+id/layout_gchat_chatbox" />
<RelativeLayout
android:id="#+id/layout_gchat_chatbox"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent">
<EditText
android:id="#+id/et_chat_box"
android:layout_width="333dp"
android:layout_height="48dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="0dp"
android:layout_toStartOf="#+id/btn_chat_send"
android:background="#android:color/transparent"
android:hint="Enter Message"
android:inputType="text"
android:maxLines="6"
tools:ignore="Autofill" />
<Button
android:id="#+id/btn_chat_send"
android:layout_width="78dp"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_marginEnd="0dp"
android:background="?attr/selectableItemBackground"
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<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="408dp"
android:layout_height="64dp"
android:background="#2E2A2A"
android:minHeight="?attr/actionBarSize"
android:theme="?attr/actionBarTheme"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.333"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/name_txt"
android:layout_width="wrap_content"
android:layout_height="39dp"
android:layout_marginTop="16dp"
android:text="TextView"
android:textColor="#FAF8F8"
android:textSize="21sp"
app:layout_constraintEnd_toEndOf="#+id/toolbar"
app:layout_constraintHorizontal_bias="0.368"
app:layout_constraintStart_toStartOf="#+id/toolbar"
app:layout_constraintTop_toTopOf="parent" />
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android:layout_width="67dp"
android:layout_height="53dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toStartOf="#+id/name_txt"
app:layout_constraintHorizontal_bias="0.673"
app:layout_constraintStart_toStartOf="#+id/toolbar"
app:layout_constraintTop_toTopOf="parent"
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int i = 1;
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There was a problem in height of the recycler view. I saw it here: https://github.com/stfalcon-studio/ChatKit/issues/103. #andriizhumela said that you need to put match parent in width and height of recycler view . so now it is solved

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private static final int REQUEST_IMAGE_CAMERA=101;
private static final int REQUEST_PERMISSION_CAMERA=101;
Button btnGuardar, btnCancelar;
ImageButton btnCamara, btnGaleria;
ImageView imageView;
public static final int MY_DEFAULT_TIMEOUT = 50000;
public EspecimenesInsertarFragment() {
// Required empty public constructor
}
public static EspecimenesInsertarFragment newInstance() { return new EspecimenesInsertarFragment();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view;
view = inflater.inflate(R.layout.fragment_colecciones_insertar, container, false);
imageView = (ImageView)view.findViewById(R.id.imageView);
btnCamara=(ImageButton) view.findViewById(R.id.tomarFoto);
btnGuardar = (Button) view.findViewById(R.id.buttonIngresarEspecimenes);
rq = Volley.newRequestQueue(getContext());
/* if(validaPermisos()){
btnCamara.setEnabled(true);
}else{
btnCamara.setEnabled(false);
} */
if (ContextCompat.checkSelfPermission(getContext(), WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(getActivity(), new String[]{WRITE_EXTERNAL_STORAGE,
Manifest.permission.CAMERA}, 1000);
}
btnGuardar.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
registrar_especimen("http://localhost/BIO-UES-APP/EspecimenesController.php");
}
});
static final int REQUEST_TAKE_PHOTO=1;
public void tomarFoto(View view){
Intent takePictureInent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Log.d("entra","");
if(takePictureInent.resolveActivity(getActivity().getPackageManager())!= null){
File photoFile=null;
try {
photoFile=createImageFile();
}catch (IOException ex){
}
if(photoFile!=null){
Uri photoUri=FileProvider.getUriForFile(getActivity(),"com.example.luvin.drawercero",photoFile);
takePictureInent.putExtra(MediaStore.EXTRA_OUTPUT,photoUri);
getActivity().startActivityForResult(takePictureInent,REQUEST_TAKE_PHOTO);
}
}
}
And this is my XML layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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=".Especimenes.EspecimenesConsultarFragment">
<!-- TODO: Update blank fragment layout -->
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true"
android:layout_centerVertical="true"
android:layout_marginStart="5dp"
android:layout_marginLeft="5dp"
android:layout_marginTop="0dp"
android:layout_marginEnd="-7dp"
android:layout_marginRight="-7dp"
android:layout_marginBottom="9dp"
tools:layout_editor_absoluteX="393dp"
tools:layout_editor_absoluteY="79dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent">
<ImageButton
android:id="#+id/tomarFoto"
android:layout_width="90dp"
android:layout_height="90dp"
android:layout_marginStart="100dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="24dp"
android:layout_marginRight="24dp"
android:clickable="true"
android:src="#android:drawable/ic_menu_camera" />
<ImageButton
android:id="#+id/seleccionarDesdeGaleria"
android:layout_width="90dp"
android:layout_height="90dp"
android:layout_marginStart="200dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="24dp"
android:layout_marginRight="24dp"
android:src="#android:drawable/ic_menu_gallery" />
</FrameLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="88dp"
android:orientation="vertical">
<Button
android:id="#+id/buttonCancelarEspecimenes"
android:layout_width="129dp"
android:layout_height="41dp"
android:layout_toRightOf="#+id/buttonIngresar"
android:backgroundTint="#96A6A8"
android:gravity="center|left"
android:text="CANCELAR"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.783"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.659" />
<Button
android:id="#+id/buttonIngresarEspecimenes"
android:layout_width="129dp"
android:layout_height="41dp"
android:layout_marginStart="68dp"
android:text="INGRESAR"
app:backgroundTint="#00BCD4"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/buttonCancelar"
app:layout_constraintHorizontal_bias="0.85"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.659" />
</androidx.constraintlayout.widget.ConstraintLayout>
</LinearLayout>
</ScrollView>
Logcat message when button is pressed:
com.example.luvin.drawercero D/ViewRootImpl#6731d38[MainActivity]: ViewPostIme pointer 1
To complete my question, I have the permissions in the manifest. I already tried to call the camera in another way, tried creating the method in the MainActivity to create the OnClick event in the XML Layout, but nothing works.
If anyone knows how to solve this issue please help.
Thanks.

You forgot to add the on click listener to your photo button. This should solve your problem:
btnCamara = view.findViewById(R.id.tomarFoto);
btnCamera.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
tomarFoto(v);
}
});

RecyclerView in fragments not working properly

I want to make a RecyclerView containing Cards inside it.
The problem is that I'm getting something weird. Like shown in screenshot below (Notice the another card overlapping the card below - the card below is only what I want to be displayed):
Here's ListContentAAR.java file's code:
class ListContentAAR {
int hImage;
String hPicTag;
String hDescription;
String hLocation;
Button btn_accept;
Button btn_share;
String postDate;
String postTime;
String postedBy;
ListContentAAR(int hImage,
String hPicTag,
String hDescription,
String hLocation,
Button btn_accept,
Button btn_share,
String postDate,
String postTime,
String postedBy) {
this.hImage = hImage;
this.hPicTag = hPicTag;
this.hDescription = hDescription;
this.hLocation = hLocation;
this.btn_accept = btn_accept;
this.btn_share = btn_share;
this.postDate = postDate;
this.postTime = postTime;
this.postedBy = postedBy;
}
}
Here's RVAdapterAAR.java file's code:
public class RVAdapterAAR extends RecyclerView.Adapter<RVAdapterAAR.PersonViewHolder> {
public static class PersonViewHolder extends RecyclerView.ViewHolder {
CardView cardView;
ImageView hImage;
TextView hPicTag;
TextView hDescription;
TextView hLocation;
Button btn_accept;
Button btn_share;
TextView postDate;
TextView postTime;
TextView postedBy;
PersonViewHolder(View itemView) {
super(itemView);
cardView = (CardView) itemView.findViewById(R.id.card_accept_request);
hImage = (ImageView) itemView.findViewById(R.id.h_pic_accept);
hPicTag = (TextView) itemView.findViewById(R.id.h_pic_tag);
hDescription = (TextView) itemView.findViewById(R.id.h_description_accept);
hLocation = (TextView) itemView.findViewById(R.id.h_location_tag);
btn_accept = (Button) itemView.findViewById(R.id.btn_accept);
btn_share = (Button) itemView.findViewById(R.id.btn_share);
postDate = (TextView) itemView.findViewById(R.id.post_date);
postTime = (TextView) itemView.findViewById(R.id.post_time);
postedBy = (TextView) itemView.findViewById(R.id.posted_by);
}
}
List<ListContentAAR> listContentAARs;
RVAdapterAAR(List<ListContentAAR> listContentAARs) {
this.listContentAARs = listContentAARs;
}
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
}
public PersonViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.fragment_accept_a_request, viewGroup, false);
PersonViewHolder personViewHolder = new PersonViewHolder(view);
return personViewHolder;
}
public void onBindViewHolder (PersonViewHolder personViewHolder, int i) {
personViewHolder.hImage.setImageResource(listContentAARs.get(i).hImage);
personViewHolder.hPicTag.setText(listContentAARs.get(i).hPicTag);
personViewHolder.hDescription.setText(listContentAARs.get(i).hDescription);
personViewHolder.hLocation.setText(listContentAARs.get(i).hLocation);
// something for btn_accept
// something for btn_share
personViewHolder.postDate.setText(listContentAARs.get(i).postDate);
personViewHolder.postTime.setText(listContentAARs.get(i).postTime);
personViewHolder.postedBy.setText(listContentAARs.get(i).postedBy);
}
public int getItemCount() {
return listContentAARs.size();
}
}
Here's AcceptARequest.java file's code:
public class AcceptARequest extends Fragment{
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private OnFragmentInteractionListener mListener;
public List<ListContentAAR> listContentAARs;
public RecyclerView recyclerView;
public AcceptARequest() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #param param1 Parameter 1.
* #param param2 Parameter 2.
* #return A new instance of fragment AcceptARequest.
*/
// TODO: Rename and change types and number of parameters
public static AcceptARequest newInstance(String param1, String param2) {
AcceptARequest fragment = new AcceptARequest();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View rootView = inflater.inflate(R.layout.fragment_accept_a_request, container, false);
recyclerView = (RecyclerView) rootView.findViewById(R.id.accept_request_list);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity());
recyclerView.setLayoutManager(linearLayoutManager);
recyclerView.setHasFixedSize(true);
initializeData();
initializeAdapter();
return rootView;
}
private void initializeData(){
listContentAARs = new ArrayList<>();
listContentAARs.add(new ListContentAAR(R.drawable.ic_action_facebook,
"H pic goes here",
"H description goes here",
"H location goes here",
R.id.btn_accept,
R.id.btn_share,
"date",
"time",
"posted by"));
}
private void initializeAdapter(){
RVAdapterAAR adapter = new RVAdapterAAR(listContentAARs);
recyclerView.setAdapter(adapter);
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}
Here's fragment_accept_a_request.xml file's code:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.abc.xyz.AcceptARequest">
<include layout="#layout/accept_a_request_recyclerview"/>
<android.support.v7.widget.RecyclerView
android:id="#+id/accept_request_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
</android.support.v7.widget.RecyclerView>
</RelativeLayout>
Here's accept_a_request_recyclerview.xml file's code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:tools="http://schemas.android.com/tools"
tools:showIn="#layout/fragment_accept_a_request">
<android.support.v7.widget.CardView
android:id="#+id/card_accept_request"
android:layout_width="match_parent"
android:layout_height="#dimen/card_accept_request"
app:cardElevation="2dp"
app:cardUseCompatPadding="true"
app:contentPadding="10dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/h_pic_accept"
android:layout_width="match_parent"
android:layout_height="#dimen/h_pic_dimen_accept"
android:layout_gravity="center_horizontal|center_vertical"/>
<TextView
android:id="#+id/h_pic_tag"
android:layout_width="match_parent"
android:layout_height="#dimen/homeless_pic_dimen_accept"
android:text="h pic goes here"
android:gravity="center_horizontal|center_vertical"/>
<TextView
android:id="#+id/h_description_accept"
android:layout_below="#+id/h_pic_tag"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal|center_vertical"
android:text="h description goes here"
android:maxLines="5"/>
<TextView
android:id="#+id/h_location_tag"
android:layout_below="#id/h_description_accept"
android:layout_width="match_parent"
android:layout_height="#dimen/h_pic_dimen_accept"
android:text="h location goes here"
android:gravity="center_horizontal|center_vertical"
android:paddingTop="#dimen/paddings"
android:paddingBottom="#dimen/paddings"/>
<LinearLayout
android:id="#+id/btn_accept_share_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="#id/h_location_tag">
<Button
android:id="#+id/btn_accept"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/btn_accept"
android:textColor="#color/colorPrimary"
style="?android:attr/borderlessButtonStyle"/>
<Button
android:id="#+id/btn_share"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/btn_share"
android:textColor="#color/colorPrimary"
style="?android:attr/borderlessButtonStyle"/>
</LinearLayout>
<LinearLayout
android:id="#+id/date_time_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="#+id/btn_accept_share_container"
android:layout_alignRight="#+id/btn_accept_share_container"
android:orientation="vertical"
android:layout_below="#id/homeless_location_tag">
<TextView
android:id="#+id/post_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="date"/>
<TextView
android:id="#+id/post_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="time"/>
</LinearLayout>
<TextView
android:id="#+id/posted_by"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="posted by [name]"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</RelativeLayout>
As I'm a beginner, I totally have no idea about what is going wrong here!

The mistake is that in onCreateViewHolder you should only inflate the content of recyclerView item, but not the very RecyclerView.The right implementation is as follow:
recyclerview_item.xml
<android.support.v7.widget.CardView
android:id="#+id/card_accept_request"
android:layout_width="match_parent"
android:layout_height="#dimen/card_accept_request"
app:cardElevation="2dp"
app:cardUseCompatPadding="true"
app:contentPadding="10dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/h_pic_accept"
android:layout_width="match_parent"
android:layout_height="#dimen/h_pic_dimen_accept"
android:layout_gravity="center_horizontal|center_vertical"/>
<TextView
android:id="#+id/h_pic_tag"
android:layout_width="match_parent"
android:layout_height="#dimen/h_pic_dimen_accept"
android:text="H pic goes here"
android:gravity="center_horizontal|center_vertical"/>
<TextView
android:id="#+id/h_description_accept"
android:layout_below="#+id/h_pic_tag"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal|center_vertical"
android:text="H description goes here"
android:maxLines="5"/>
<TextView
android:id="#+id/h_location_tag"
android:layout_below="#id/h_description_accept"
android:layout_width="match_parent"
android:layout_height="#dimen/h_pic_dimen_accept"
android:text="H location goes here"
android:gravity="center_horizontal|center_vertical"
android:paddingTop="#dimen/paddings"
android:paddingBottom="#dimen/paddings"/>
<LinearLayout
android:id="#+id/btn_accept_share_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="#id/homeless_location_tag">
<Button
android:id="#+id/btn_accept"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/btn_accept"
android:textColor="#color/colorPrimary"
style="?android:attr/borderlessButtonStyle"/>
<Button
android:id="#+id/btn_share"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/btn_share"
android:textColor="#color/colorPrimary"
style="?android:attr/borderlessButtonStyle"/>
</LinearLayout>
<LinearLayout
android:id="#+id/date_time_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="#+id/btn_accept_share_container"
android:layout_alignRight="#+id/btn_accept_share_container"
android:orientation="vertical"
android:layout_below="#id/homeless_location_tag">
<TextView
android:id="#+id/post_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="date"/>
<TextView
android:id="#+id/post_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="time"/>
</LinearLayout>
<TextView
android:id="#+id/posted_by"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="posted by [name]"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
your_fragment_layout.xml
<android.support.v7.widget.RecyclerView
android:id="#+id/accept_request_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
</android.support.v7.widget.RecyclerView>
In your Activity you inflate Fragment from your_fragment_layout.xml
and then in onCreateViewHolder you should replace this line:
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.fragment_accept_a_request, viewGroup, false);
on this line :
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.recyclerview_item, viewGroup, false);

After messing up a lot with this problem, I finally figured out the solution.
It was simple.
I just changed the RelativeLayout to LinearLayout, and it worked like a charm!
Here's the final fragment_accept_a_request.xml file's code:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
android:orientation="vertical"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.humanehelper.humanehelper.AcceptARequest">
<android.support.v7.widget.RecyclerView
android:id="#+id/accept_request_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
<include layout="#layout/accept_a_request_recyclerview"/>
</LinearLayout>
and here's accept_a_request_recyclerview.xml file's code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:tools="http://schemas.android.com/tools"
tools:showIn="#layout/fragment_accept_a_request">
<android.support.v7.widget.CardView
android:id="#+id/card_accept_request"
android:layout_width="match_parent"
android:layout_height="#dimen/card_accept_request"
app:cardElevation="2dp"
app:cardUseCompatPadding="true"
app:contentPadding="10dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/h_pic_accept"
android:layout_width="match_parent"
android:layout_height="#dimen/h_pic_dimen_accept"
android:layout_gravity="center_horizontal|center_vertical"/>
<TextView
android:id="#+id/h_pic_tag"
android:layout_width="match_parent"
android:layout_height="#dimen/homeless_pic_dimen_accept"
android:text="h pic goes here"
android:gravity="center_horizontal|center_vertical"/>
<TextView
android:id="#+id/h_description_accept"
android:layout_below="#+id/h_pic_tag"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal|center_vertical"
android:text="h description goes here"
android:maxLines="5"/>
<TextView
android:id="#+id/h_location_tag"
android:layout_below="#id/h_description_accept"
android:layout_width="match_parent"
android:layout_height="#dimen/h_pic_dimen_accept"
android:text="h location goes here"
android:gravity="center_horizontal|center_vertical"
android:paddingTop="#dimen/paddings"
android:paddingBottom="#dimen/paddings"/>
<LinearLayout
android:id="#+id/btn_accept_share_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="#id/h_location_tag">
<Button
android:id="#+id/btn_accept"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/btn_accept"
android:textColor="#color/colorPrimary"
style="?android:attr/borderlessButtonStyle"/>
<Button
android:id="#+id/btn_share"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/btn_share"
android:textColor="#color/colorPrimary"
style="?android:attr/borderlessButtonStyle"/>
</LinearLayout>
<LinearLayout
android:id="#+id/date_time_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="#+id/btn_accept_share_container"
android:layout_alignRight="#+id/btn_accept_share_container"
android:orientation="vertical"
android:layout_below="#id/homeless_location_tag">
<TextView
android:id="#+id/post_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="date"/>
<TextView
android:id="#+id/post_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="time"/>
</LinearLayout>
<TextView
android:id="#+id/posted_by"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="posted by [name]"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>

Android Studio Change Fragment on Button Click

Basically I have two fragments with two classes for each and one main class and main activity. I want to set one of the fragment as the home screen and when I press a button it shows the other fragment and hides the previous one.
Problems:
My first problem is that the application is not even opening, its saying,"Unfortunately Application stopped working".
Next, when I click on my button both the fragments are merging and the last fragment is not disappearing.
My main class:
public class MainActivity extends ActionBarActivity {
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
UpcomingProject Upcoming = new UpcomingProject();
fragmentTransaction.replace(android.R.id.content, Upcoming);
fragmentTransaction.commit();
}
#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_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem 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);
}
}
#Override
public void onBackPressed() {
}
My Main Activity:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="10dp"
tools:context=".MainActivity">
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/upcomingproject"/>
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/createproject"/>
</LinearLayout>
My Home page fragment xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="10dp"
>
<Button
android:id="#+id/button_create"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:text="#string/button_create"
android:layout_margin="15sp"
android:background="#drawable/drawable_buttoncreate"
android:clickable="true" />
</LinearLayout>
My home page fragment java class:
public class UpcomingProject extends Fragment implements View.OnClickListener {
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView;
rootView = inflater.inflate(R.layout.upcomingproject, container, false);
Button CreateP = (Button)rootView.findViewById(R.id.button_create);
CreateP.setOnClickListener(this);
return rootView;
}
#Override
public void onClick(View v) {
CreateProject Create = new CreateProject();
fragmentTransaction.replace(android.R.id.content, Create);
fragmentTransaction.commit();
}
}
My second fragment, the one I want to switch too on the click of a button:
public class CreateProject extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView;
rootView = inflater.inflate(R.layout.createproject, container, false);
return rootView;
}
}
And the second fragment's xml:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="20dp"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:scrollbarAlwaysDrawVerticalTrack="true">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="10dp">
<TextView android:id="#+id/name_input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/name_input"
android:textSize="20sp"/>
<EditText android:id="#+id/edit_message"
android:layout_weight="1"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:hint="#string/edit_message"/>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="10dp"
android:layout_marginBottom="10dp">
<TextView android:id="#+id/contact_input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/contact_input"
android:layout_gravity="top"
android:textSize="20sp"/>
<EditText android:id="#+id/contact_description"
android:layout_weight="1"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:inputType="number"
android:hint="#string/contact_description"/>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="10dp"
android:layout_marginBottom="10dp">
<TextView android:id="#+id/email_input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/email_input"
android:layout_gravity="top"
android:textSize="20sp"/>
<EditText android:id="#+id/email_description"
android:layout_weight="1"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:inputType="textEmailAddress"
/>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="10dp"
android:layout_marginBottom="10dp"
>
<TextView android:id="#+id/category_input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/category_input"
android:layout_gravity="top"
android:textSize="20sp"/>
<RadioGroup
android:id="#+id/radioGroup"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<RadioButton android:id="#+id/radio_individual"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="#string/radio_individual"
/>
<RadioButton android:id="#+id/radio_NPO"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="#string/radio_NPO"
/>
<RadioButton android:id="#+id/radio_NGO"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="#string/radio_NGO"
/>
</RadioGroup>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="10dp"
android:layout_marginBottom="10dp"
>
<TextView android:id="#+id/title_input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/title_input"
android:layout_gravity="top"
android:textSize="20sp"/>
<EditText android:id="#+id/title_description"
android:layout_weight="1"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:inputType="text" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="10dp"
android:layout_marginBottom="10dp"
>
<TextView android:id="#+id/description_input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/description_input"
android:layout_gravity="top"
android:textSize="20sp"/>
<EditText android:id="#+id/edit_description"
android:layout_weight="1"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:hint="#string/edit_description" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingTop="10dp"
android:gravity="center"
android:layout_marginBottom="10dp">
<Button android:id="#+id/button_register"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/button_register"
android:layout_margin="10sp"
android:background="#drawable/drawable_buttoncreate"/>
<Button android:id="#+id/button_reset"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/button_reset"
android:layout_margin="10sp"
android:background="#drawable/drawable_buttoncreate"/>
</LinearLayout>
</LinearLayout>
</ScrollView>

Try to use getSupportFragmentManager() in your Main Activity to replace first fragment. And getChildFragmentManager() when you replace second fragment

This is a very late reply, but I'll give it in case anyone else hits the same issue.
The reason for this problem was that you have explicitly defined the fragment in your xml file. If you want to swap the fragment it's best to define it as a FrameLayout and then swap it in your onCreate method using e.g.
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
FragmentTransaction fts = getSupportFragmentManager().beginTransaction();
fts.add(R.id.content, UpcomingProject.newInstance());
fts.commit();
setContentView(R.layout.activity_main);
}
This is all explained very well and in much more detail in the link in hrskrs's comment above (https://github.com/codepath/android_guides/wiki/Creating-and-Using-Fragments)

Develop Reference

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Main Activity overlay with fragment - java

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