Why is this RecyclerView + CardView example not working?

Why is this RecyclerView + CardView example not working? - java

I am trying to create an app with a list of foods on the main activity and a checkbox for each food.
I followed this tutorial in order to do the whole text and checkbox thing: http://android-pratap.blogspot.co.il/2015/01/recyclerview-with-checkbox-example.html
But whenever I run the app it just won't show the RecyclerView on the main screen... (The app will run, but the RecyclerView just isn't there)
If someone can explain how I can change my code so it wouldn't require the cards that would be awesome. Here's my code:
MainAcitivity.java: (Just combines the RecyclerView with the FoodAdapter)
package com.gregskl.foodreminder;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private RecyclerView recycler;
private RecyclerView.Adapter adapter;
private List<Food> foods;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
foods = new ArrayList<>();
foods.add(new Food("Grapes", true));
foods.add(new Food("Oranges", true));
recycler = (RecyclerView) findViewById(R.id.recycler);
recycler.setLayoutManager(new LinearLayoutManager(this));
adapter = new FoodAdapater(foods);
recycler.setAdapter(adapter);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).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_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);
}
}
FoodAdapter.java:
package com.gregskl.foodreminder;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.TextView;
import android.widget.Toast;
import java.util.List;
/**
* Created by Gregory on 11-Sep-16.
*/
public class FoodAdapater extends RecyclerView.Adapter<FoodAdapater.ViewHolder> {
private List<Food> foods;
public FoodAdapater(List<Food> foods) {
this.foods = foods;
}
#Override
public FoodAdapater.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemLayoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list, null);
return new ViewHolder(itemLayoutView);
}
#Override
public void onBindViewHolder(FoodAdapater.ViewHolder holder, int position) {
ViewHolder h = (ViewHolder) holder;
h.text.setText(foods.get(position).getText());
h.checkbox.setChecked(foods.get(position).isAvailable());
h.checkbox.setTag(foods.get(position));
h.checkbox.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Toast.makeText(v.getContext(), "Hey", Toast.LENGTH_LONG).show();
}
});
}
#Override
public int getItemCount() {
return foods.size();
}
public static class ViewHolder extends RecyclerView.ViewHolder {
public TextView text;
public CheckBox checkbox;
public ViewHolder(View itemView) {
super(itemView);
text = (TextView) itemView.findViewById(R.id.text);
checkbox = (CheckBox) itemView.findViewById(R.id.checkbox);
}
}
}
Food.java: (The data model for the food)
package com.gregskl.foodreminder;
/**
* Created by Gregory on 11-Sep-16.
*/
public class Food {
private String text;
private boolean available;
public Food(String text, boolean available) {
this.text = text;
this.available = available;
}
public String getText() {
return text;
}
public boolean isAvailable() {
return available;
}
public void setText(String text) {
this.text = text;
}
public void setAvailable(boolean available) {
this.available = available;
}
}
content_main.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"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.gregskl.foodreminder.MainActivity"
tools:showIn="#layout/activity_main">
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_margin="5dp"
android:layout_weight="1"
android:scrollbars="vertical" />
</RelativeLayout>
list.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
card_view:cardCornerRadius="5dp"
card_view:cardUseCompatPadding="true" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp" >
<TextView
android:id="#+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:text="name"
android:textColor="#android:color/black"
android:textSize="18sp" />
<CheckBox
android:id="#+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
/>
</RelativeLayout>
</android.support.v7.widget.CardView>

Try setting height from android:layout_height="0dp" to android:layout_height="match_parent" in your RecyclerView.
0dp height is used in LinearLayout, yours is RelativeLayout.

Related

My navigation drawer wont open profile fragment with (recyclerview, tablayout and viewpager inside fragment)

all. I'm having a problem.
I am trying to make an application, wherein a navigation-drawer is the source of navigation. In this application, I have some fragments with activities. The problem is, that if I run my profile fragment (which have uses tablayout and recyclerview) in an application for itself, it works. The application when it runs in it's own application.
However, when I attempt to add it to an application, wherein it should be a fragment in a navigation drawer, the application can compile, but when I click on the menuitem in the emulator, it crashes.
I will add the code I have at the moment:
Main Activity
import android.view.MenuItem;
import android.view.View;
import android.view.Menu;
import android.content.Intent;
import com.example.sustainably.ui.myprofile.MainActivityProfile;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.snackbar.Snackbar;
import com.google.android.material.navigation.NavigationView;
import androidx.annotation.NonNull;
import androidx.core.view.GravityCompat;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.navigation.ui.NavigationUI;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
public class MainActivity extends AppCompatActivity {
private AppBarConfiguration mAppBarConfiguration;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.nav_view);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
mAppBarConfiguration = new AppBarConfiguration.Builder(
R.id.nav_home, R.id.nav_friends, R.id.nav_messages, R.id.nav_bookmarks, R.id.nav_myprofile, R.id.nav_discoverforums, R.id.nav_settings, R.id.nav_logout)
.setDrawerLayout(drawer)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
NavigationUI.setupWithNavController(navigationView, navController);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onSupportNavigateUp() {
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
return NavigationUI.navigateUp(navController, mAppBarConfiguration)
|| super.onSupportNavigateUp();
}
public boolean onNavigationItemSelected(MenuItem item) {
NavigationView navigationView = (NavigationView)findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem menuItem) {
int id = menuItem.getItemId();
switch (menuItem.getItemId()) {
case R.id.nav_home:
// code here
break;
case R.id.nav_friends:
// code here
break;
case R.id.nav_messages:
// code here
break;
case R.id.nav_bookmarks:
// code here
break;
case R.id.nav_myprofile:
Intent intent=new Intent(MainActivity.this, MainActivityProfile.class);
startActivity(intent);
break;
case R.id.nav_discoverforums:
//code here
break;
case R.id.nav_settings:
//code here
break;
case R.id.nav_logout:
//code here
break;
}
DrawerLayout drawer = (DrawerLayout)findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
});
return false;
}
}
and in the profile fragment package i have 6 java classes:
BookmarkModel.java
private String Title;
private int Photo;
public BookmarkModel() {
}
public BookmarkModel(String title, int photo) {
Title = title;
Photo = photo;
}
// Getter
public String getTitle() {
return Title;
}
public int getPhoto() {
return Photo;
}
// Setter
public void setTitle(String title) {
Title = title;
}
public void setPhoto(int photo) {
Photo = photo;
}
}
MainActivityProfile.java
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.ViewPager;
import androidx.viewpager2.widget.ViewPager2;
import android.os.Bundle;
import com.example.sustainably.R;
import com.google.android.material.tabs.TabLayout;
public class MainActivityProfile extends AppCompatActivity {
private TabLayout tabLayout;
private ViewPager viewPager;
private ViewPagerAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_myprofile);
tabLayout = (TabLayout) findViewById(R.id.tablayout_id);
viewPager = (ViewPager) findViewById(R.id.viewpager_id);
adapter = new ViewPagerAdapter(getSupportFragmentManager());
// Add Fragment Here
adapter.AddFragment(new PublicBookmarkFragment(), "Public Bookmarks");
adapter.AddFragment(new LatestPostsFragment(), "Latest Posts");
viewPager.setAdapter(adapter);
tabLayout.setupWithViewPager(viewPager);
tabLayout.getTabAt(0).setIcon(R.drawable.ic_outline_bookmarks_24);
tabLayout.getTabAt(1).setIcon(R.drawable.ic_outline_textsms_24);
}
}
PublicBookmarkFragment
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.example.sustainably.R;
import java.util.ArrayList;
import java.util.List;
public class PublicBookmarkFragment extends Fragment {
View v;
private RecyclerView myrecyclerview;
private List<BookmarkModel> lstBookmarkModel;
public PublicBookmarkFragment() {
}
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
v = inflater.inflate(R.layout.public_bookmarks_fragment, container, false);
myrecyclerview = (RecyclerView) v.findViewById(R.id.bookmarks_recyclerview);
RecyclerViewAdapter recyclerAdapter = new RecyclerViewAdapter(getContext(), lstBookmarkModel);
myrecyclerview.setLayoutManager(new GridLayoutManager(getContext(), 2));
myrecyclerview.setAdapter(recyclerAdapter);
return v;
}
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
lstBookmarkModel = new ArrayList<>();
lstBookmarkModel.add(new BookmarkModel("Salad", R.drawable.annapelzer));
lstBookmarkModel.add(new BookmarkModel("Pasta", R.drawable.brookelark_1));
lstBookmarkModel.add(new BookmarkModel("Fruit Salad", R.drawable.brookelark_2));
lstBookmarkModel.add(new BookmarkModel("Smoothies with fruit", R.drawable.brookelark_3));
lstBookmarkModel.add(new BookmarkModel("Soup", R.drawable.cala));
lstBookmarkModel.add(new BookmarkModel("Lobster Salad", R.drawable.davide_cantelli));
lstBookmarkModel.add(new BookmarkModel("Breakfast Toast with Berries", R.drawable.joseph_gonzales));
}
}
RecyclerViewAdapter
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.example.sustainably.R;
import java.util.List;
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.MyViewHolder> {
Context mContext;
List<BookmarkModel> mData;
public RecyclerViewAdapter(Context mContext, List<BookmarkModel> mData) {
this.mContext = mContext;
this.mData = mData;
}
#NonNull
#Override
public MyViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v;
v = LayoutInflater.from(mContext).inflate(R.layout.item_bookmarks, parent, false);
MyViewHolder vHolder = new MyViewHolder(v);
return vHolder;
}
#Override
public void onBindViewHolder(#NonNull MyViewHolder holder, int position) {
holder.tv_title.setText(mData.get(position).getTitle());
holder.img.setImageResource(mData.get(position).getPhoto());
}
#Override
public int getItemCount() {
return mData.size();
}
public static class MyViewHolder extends RecyclerView.ViewHolder {
private TextView tv_title;
private ImageView img;
public MyViewHolder(#NonNull View itemView) {
super(itemView);
tv_title = (TextView) itemView.findViewById(R.id.title_bookmarks);
img = (ImageView) itemView.findViewById(R.id.img_bookmarks);
}
}
}
ViewPagerAdapter
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.List;
public class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> lstFragment = new ArrayList<>();
private final List<String> lstTitles = new ArrayList<>();
public ViewPagerAdapter(#NonNull FragmentManager fm) {
super(fm);
}
#NonNull
#Override
public Fragment getItem(int position) {
return lstFragment.get(position);
}
#Override
public int getCount() {
return lstTitles.size();
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
return lstTitles.get(position);
}
public void AddFragment (Fragment fragment, String title) {
lstFragment.add(fragment);
lstTitles.add(title);
}
}
fragment_myprofile.xml
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/myprofile"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:orientation="vertical">
<include
layout="#layout/profile_header"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<LinearLayout
android:id="#+id/TabContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tablayout_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabGravity="fill"
app:tabIconTint="#color/dark_green"
app:tabIndicatorColor="#color/dark_green"
app:tabInlineLabel="true"
app:tabMode="fixed"
app:tabRippleColor="#color/light_green"
app:tabSelectedTextColor="#color/dark_green"
app:tabTextAppearance="#style/TextAppearance.AppCompat.Small"></com.google.android.material.tabs.TabLayout>
<androidx.viewpager.widget.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/viewpager_id"></androidx.viewpager.widget.ViewPager>
</LinearLayout>
</LinearLayout>
public_bookmarks_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/bookmarks_recyclerview">
</androidx.recyclerview.widget.RecyclerView>
</LinearLayout>
item_bookmarks.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:cardUseCompatPadding="true"
app:cardCornerRadius="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:id="#+id/img_bookmarks"
android:layout_width="200dp"
android:layout_height="200dp"
android:src="#mipmap/ic_launcher"
android:scaleType="centerCrop" />
<TextView
android:id="#+id/title_bookmarks"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="#color/dark_green"
android:padding="5dp"
android:text="#string/title"
android:textSize="16sp" />
</LinearLayout>
</androidx.cardview.widget.CardView>
I'm new at asking questions in here, so if I missed some information you need, or messed something up, please tell me what you need, and I will provide that aswell. Hope you can help.
For clarification as requested:
Logcat errormessages when I click on the menu
2021-05-06 15:28:54.971 18053-18053/com.example.sustainably E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.sustainably, PID: 18053
java.lang.ClassCastException: com.example.sustainably.ui.myprofile.MainActivityProfile cannot be cast to androidx.fragment.app.Fragment
at androidx.fragment.app.Fragment.instantiate(Fragment.java:548)
at androidx.fragment.app.FragmentContainer.instantiate(FragmentContainer.java:57)
at androidx.fragment.app.FragmentManager$3.instantiate(FragmentManager.java:390)
at androidx.navigation.fragment.FragmentNavigator.instantiateFragment(FragmentNavigator.java:132)
at androidx.navigation.fragment.FragmentNavigator.navigate(FragmentNavigator.java:162)
at androidx.navigation.fragment.FragmentNavigator.navigate(FragmentNavigator.java:58)
at androidx.navigation.NavController.navigate(NavController.java:1066)
at androidx.navigation.NavController.navigate(NavController.java:944)
at androidx.navigation.NavController.navigate(NavController.java:877)
at androidx.navigation.ui.NavigationUI.onNavDestinationSelected(NavigationUI.java:97)
at androidx.navigation.ui.NavigationUI$3.onNavigationItemSelected(NavigationUI.java:453)
at com.google.android.material.navigation.NavigationView$1.onMenuItemSelected(NavigationView.java:217)
at androidx.appcompat.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:834)
at androidx.appcompat.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:158)
at androidx.appcompat.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:985)
at com.google.android.material.internal.NavigationMenuPresenter$1.onClick(NavigationMenuPresenter.java:416)
at android.view.View.performClick(View.java:7448)
at android.view.View.performClickInternal(View.java:7425)
at android.view.View.access$3600(View.java:810)
at android.view.View$PerformClick.run(View.java:28305)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
mobile_navigation.xml
<?xml version="1.0" encoding="utf-8"?>
<navigation 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:id="#+id/mobile_navigation"
app:startDestination="#+id/nav_home">
<fragment
android:id="#+id/nav_home"
android:name="com.example.sustainably.ui.home.HomeFragment"
android:label="#string/menu_home"
tools:layout="#layout/fragment_home" />
<fragment
android:id="#+id/nav_friends"
android:name="com.example.sustainably.ui.friends.FriendsFragment"
android:label="#string/menu_friends"
tools:layout="#layout/fragment_friends" />
<fragment
android:id="#+id/nav_bookmarks"
android:name="com.example.sustainably.ui.bookmarks.BookmarksFragment"
android:label="#string/menu_bookmarks"
tools:layout="#layout/fragment_bookmarks" />
<fragment
android:id="#+id/nav_myprofile"
android:name="com.example.sustainably.ui.myprofile.profileRecycle.MyProfileFragment"
android:label="#string/menu_myprofile"
tools:layout="#layout/fragment_myprofile" />
<fragment
android:id="#+id/nav_discoverforums"
android:name="com.example.sustainably.ui.discoverforums.DiscoverForumsFragment"
android:label="#string/menu_discoverforums"
tools:layout="#layout/fragment_discoverforums" />
<fragment
android:id="#+id/nav_messages"
android:name="com.example.sustainably.ui.messages.MessagesFragment"
android:label="#string/menu_messages"
tools:layout="#layout/fragment_messages" />
</navigation>
The code in it's entirety: https://github.com/CabCabz/SustainablyProblem.git

suggestion:
I analyzed your code, you should not used default navigation drawer setup with mobile_navigation.xml.
Setup drawer menu without mobile_navigation.xml: https://stackoverflow.com/a/67389269/12660050
Solution:
1) As you are using default drawer with mobile_navigation.xml you do not need to
use onNavigationItemSelected() method. So, before doing anything remove it from
your Main Activity.
2) Go to the mobile_navigation.xml file and change tag name fragment to activity in which you are using as a MainActivityProfile.java.
Before:
<fragment
android:id="#+id/nav_myprofile"
android:name="com.example.sustainably.ui.myprofile.profileRecycle.MyProfileFragment"
android:label="#string/menu_myprofile"
tools:layout="#layout/fragment_myprofile" />
After:
<activity
android:id="#+id/nav_myprofile"
android:name="com.example.sustainably.ui.myprofile.profileRecycle.MyProfileFragment"
android:label="#string/menu_myprofile"
tools:layout="#layout/fragment_myprofile" />
By changing only this you can solve your problem!!

Android 4.1.1 - findViewById on RecyclerView returns null in MainActivity

I'm following Android Fundamentals CodeLabs (https://developer.android.com/codelabs/android-training-create-recycler-view?index=..%2F..%2Fandroid-training#3), with minor changes given I am using a more advanced version of Android Studio (4.1.1) and am getting a null recyclerView in MainActivity onCreate method even though the view exists. I've used BasicActivity to start this project. How do I fix this?
Here my XML for fragment_first.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=".FirstFragment">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/ourcards_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<Button
android:id="#+id/button_first"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/next"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
and here the MainActivity.java file content:
package com.example.ourcards;
import android.os.Bundle;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.snackbar.Snackbar;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import java.util.LinkedList;
public class MainActivity extends AppCompatActivity {
private final LinkedList<String> mCardList = new LinkedList<>();
private RecyclerView mRecyclerView;
private CardListAdapter mAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
mCardList.addLast("Carta 1");
mCardList.addLast("Carta 2");
// Get a handle to the RecyclerView.
mRecyclerView = findViewById(R.id.ourcards_view);
// Create an adapter and supply the data to be displayed.
mAdapter = new CardListAdapter(this, mCardList);
// Connect the adapter with the RecyclerView.
mRecyclerView.setAdapter(mAdapter);
// Give the RecyclerView a default layout manager.
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
}
#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);
}
}
EDIT
Here is my activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 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">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/Theme.OurCards.AppBarOverlay">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/Theme.OurCards.PopupOverlay" />
</com.google.android.material.appbar.AppBarLayout>
<include layout="#layout/content_main" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
app:srcCompat="#drawable/ic_add_for_fab" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
Here content_main.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"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<fragment
android:id="#+id/nav_host_fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="0dp"
android:layout_height="0dp"
app:defaultNavHost="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:navGraph="#navigation/nav_graph" />
</androidx.constraintlayout.widget.ConstraintLayout>
Here my CardListAdapter.java
package com.example.ourcards;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import java.util.LinkedList;
public class CardListAdapter extends
RecyclerView.Adapter<CardListAdapter.CardViewHolder> {
private final LinkedList<String> mCardList;
private final LayoutInflater mInflater;
class CardViewHolder extends RecyclerView.ViewHolder {
public final TextView cardItemView;
final CardListAdapter mAdapter;
public CardViewHolder(View itemView, CardListAdapter adapter) {
super(itemView);
cardItemView = itemView.findViewById(R.id.card);
this.mAdapter = adapter;
}
}
public CardListAdapter(Context context,
LinkedList<String> cardList) {
mInflater = LayoutInflater.from(context);
this.mCardList = cardList;
}
#NonNull
#Override
public CardListAdapter.CardViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View mItemView = mInflater.inflate(R.layout.cardlist_item,
parent, false);
return new CardViewHolder(mItemView, this);
}
#Override
public void onBindViewHolder(#NonNull CardListAdapter.CardViewHolder holder, int position) {
String mCurrent = mCardList.get(position);
holder.cardItemView.setText(mCurrent);
}
#Override
public int getItemCount() {
return mCardList.size();
}
}
and here my FirstFragment.java
package com.example.ourcards;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.navigation.fragment.NavHostFragment;
public class FirstFragment extends Fragment {
#Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState
) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_first, container, false);
}
public void onViewCreated(#NonNull View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
view.findViewById(R.id.button_first).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
NavHostFragment.findNavController(FirstFragment.this)
.navigate(R.id.action_FirstFragment_to_SecondFragment);
}
});
}
}

Here my XML for fragment_first.xml:
Note that your filename is fragment_first.xml.
and here the MainActivity.java file content
Your code here seems to have nothing to do with fragment_first.xml. For example, your setContentView() call is loading activity_main.xml.
So, either your RecyclerView needs to be in activity_main.xml, your setContentView() needs to be loading fragment_first, or you otherwise need to synchronize the work in your two code snippets.

listview onitemclicklistener not working using in activity

Hello friend i have custom listview using arrayadopter in my activity i am using listview on item click listner but problem is that its not working please help me here is my code the tost message which i used in my onitem click listner in my activity is not working what problem is here please tell
my custom layout for listview code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:fab="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_margin="0dp"
android:padding="0dp"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:layout_width="28dp"
android:layout_height="28dp"
android:id="#+id/versenumber"
android:text="1"
android:background="#drawable/roundedbutton"/>
<TextView
android:layout_width="match_parent"
android:id="#+id/verse"
android:layout_gravity="center|top"
android:layout_height="wrap_content"
android:layout_weight="2"
android:textColor="#color/darkcolor"
android:textSize="20sp"
android:text="#string/versedisplay"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_gravity="top"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:id="#+id/speakverse"
android:layout_width="28dp"
android:layout_marginTop="10dp"
android:layout_height="28dp"
fab:srcCompat="#drawable/speak" />
<ImageView
android:layout_width="28dp"
android:layout_height="28dp"
android:id="#+id/share"
android:paddingTop="-10dp"
android:layout_marginTop="10dp"
android:src="#drawable/ic_share_black_24dp"/>
<ToggleButton
android:id="#+id/adbookmark"
android:layout_marginTop="10dp"
android:layout_width="27dp"
android:layout_height="28dp"
android:layout_gravity="right"
android:background="#drawable/toggle_selector"
android:textOff=""
android:textOn="" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:textAlignment="center"
android:layout_gravity="top"
android:layout_height="wrap_content"
android:orientation="horizontal">
</LinearLayout>
</LinearLayout>
<?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=".ALLVERSE">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/colorAccent"
app:popupTheme="#style/AppTheme.PopupOverlay">
<TextView
android:id="#+id/bookname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:textSize="20sp"
android:textColor="#ffffff"
android:textStyle="bold"
android:text="ALL VERESE" />
</android.support.v7.widget.Toolbar>
<ListView
android:layout_below="#+id/toolbar"
android:id="#+id/mylistview"
android:divider="#null"
android:dividerHeight="3dp"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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=".ALLVERSE">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/colorAccent"
app:popupTheme="#style/AppTheme.PopupOverlay"/>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/allversecontent" />
</android.support.design.widget.CoordinatorLayout>
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 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:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="#layout/allverseappbar"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
package bible.swordof.God;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.support.annotation.NonNull;
import android.support.design.widget.NavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import es.dmoral.toasty.Toasty;
public class ALLVERSE extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private ListView listView;
private ArrayList<String>versenumber;
private ArrayList<String>verselist;
private ArrayList<String>id;
private ArrayList<String>refernce;
private DatabaseHelper mDBHelper;
private SQLiteDatabase mDb;
private int booknumber;
private int chapternumber;
private String bookname;
private TextView booknametitle;
private FullverseAdopter adopter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_allverse);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
booknametitle=findViewById(R.id.bookname);
Intent mIntent = getIntent();
booknumber = mIntent.getIntExtra("Boooknumber",0);
chapternumber= mIntent.getIntExtra("Chapternumber", 0);
bookname=mIntent.getStringExtra("Bookname");
booknametitle.setText(bookname.toString() +" "+ chapternumber);
//Toast.makeText(this, ""+bookname, Toast.LENGTH_SHORT).show();
setSupportActionBar(toolbar);
toolbar.setTitle("ALL VERSE");
setSupportActionBar(toolbar);
if (getSupportActionBar() != null) {
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
setData();
listView =findViewById(R.id.list);
adopter=new FullverseAdopter(this,R.layout.versedisplayrow,versenumber,verselist,refernce,id);
listView.setAdapter(adopter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(ALLVERSE.this, "LIFE RUNS ON CODE", Toast.LENGTH_SHORT).show();
}
});
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// handle arrow click here
if (item.getItemId() == android.R.id.home) {
onBackPressed();
}
return super.onOptionsItemSelected(item);
}
private void setData() {
versenumber=new ArrayList<>();
verselist=new ArrayList<>();
refernce=new ArrayList<>();
id=new ArrayList<>();
mDBHelper = new DatabaseHelper(this);
mDb = mDBHelper.getReadableDatabase();
Cursor cursor = mDb.rawQuery("SELECT id, v, t from t_kjv where b="+booknumber+" AND c="+chapternumber+";", new String[]{});
if(cursor!=null && cursor.getCount() > 0)
{ if (cursor.moveToFirst())
{
do {
id.add(cursor.getString(0));
versenumber.add(cursor.getString(1));
verselist.add(cursor.getString(2));
refernce.add(bookname+" "+chapternumber);
}
while (cursor.moveToNext());
}
}
}
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
Fragment fragment;
int id = item.getItemId();
if (id == R.id.home) {
Intent intent=new Intent(this,MainActivity.class);
startActivity(intent);
} else if (id == R.id.favoruite)
{ Intent intent=new Intent(this,Favourite.class);
startActivity(intent);
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
My adopter customadopter class:
package bible.swordof.God;
import android.app.Activity;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.opengl.Visibility;
import android.preference.PreferenceManager;
import android.speech.tts.TextToSpeech;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ToggleButton;
import com.amulyakhare.textdrawable.TextDrawable;
import com.amulyakhare.textdrawable.util.ColorGenerator;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import es.dmoral.toasty.Toasty;
import petrov.kristiyan.colorpicker.ColorPicker;
import static android.content.Context.MODE_PRIVATE;
import static android.database.sqlite.SQLiteDatabase.CONFLICT_NONE;
import static android.icu.lang.UCharacter.GraphemeClusterBreak.V;
import static android.support.constraint.Constraints.TAG;
import static android.support.v4.content.ContextCompat.createDeviceProtectedStorageContext;
import static android.support.v4.content.ContextCompat.startActivity;
public class FullverseAdopter extends ArrayAdapter<String> {
private ALLVERSE activity;
private List<String> versenumber;
private List<String>verseid;
private List<String> verselist;
private List<String> refernce;
TextToSpeech textToSpeech;
private DatabaseHelper mDBHelper;
private SQLiteDatabase mDb;
private boolean ischeckd;
String My_PREF="MY_PREF";
public String ex="switch";
//check for availabe language
int result;
public FullverseAdopter(ALLVERSE context, int resource, List<String> versenumber, List<String> verselist, List<String> refernce, List<String>verseid) {
super(context, resource, versenumber);
this.activity = context;
this.versenumber = versenumber;
this.verselist = verselist;
this.refernce = refernce;
this.verseid=verseid;
}
#Override
public int getCount() {
return versenumber.size();
}
#Override
public String getItem(int position) {
return versenumber.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, final ViewGroup parent) {
final ViewHolder holder;
LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
// If holder not exist then locate all view from UI file.
if (convertView == null) {
// inflate UI from XML file
convertView = inflater.inflate(R.layout.versedisplayrow, parent, false);
// get all UI view
holder = new ViewHolder(convertView);
// set tag for holder
holder.versenumber = (TextView) convertView.findViewById(R.id.versenumber);
holder.verselist = (TextView) convertView.findViewById(R.id.verse);
holder.addfavoruite=(ToggleButton)convertView.findViewById(R.id.adbookmark);
convertView.setTag(holder);
} else {
// if holder created, get tag from view
holder = (ViewHolder) convertView.getTag();
}
holder.versenumber.setText(versenumber.get(position));
holder.verselist.setText(verselist.get(position));
//verselist highlight
//share verse
holder.share.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toasty.info(activity, "Sharing a verse.", Toast.LENGTH_SHORT, true).show();
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, refernce.get(position) + ":" + versenumber.get(position) + '\n' + verselist.get(position));
sendIntent.setType("text/plain");
activity.startActivity(sendIntent);
}
});
//add in favourite
holder.addfavoruite.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
mDBHelper = new DatabaseHelper(activity);
mDb = mDBHelper.getWritableDatabase();
ContentValues contentValues=new ContentValues();
contentValues.put("id",verseid.get(position));
contentValues.put("bookname",refernce.get(position));
contentValues.put("versenumber",versenumber.get(position));
contentValues.put("verse",verselist.get(position));
long check=mDb.insert("favourite",null,contentValues);
Log.d("MY_TAG","DB IS NOW "+check);
Toasty.success(activity, "Added in favouite", Toast.LENGTH_SHORT, true).show();
}else {
mDBHelper = new DatabaseHelper(activity);
mDb = mDBHelper.getWritableDatabase();
long delete= mDb.delete("favourite","id=?",new String[]{verseid.get(position)});
Toasty.error(activity, "Remove in favouite", Toast.LENGTH_SHORT, true).show();
}
}
});
textToSpeech = new TextToSpeech(activity, new TextToSpeech.OnInitListener() {
#Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
result = textToSpeech.setLanguage(Locale.ENGLISH);
} else {
Toast.makeText(activity, "YOUR DEVICE NOT SUPPORTED", Toast.LENGTH_SHORT).show();
}
}
});
//My toggle button
holder.speakverse.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(activity, "I AM CLICKED", Toast.LENGTH_SHORT).show();
if (result == TextToSpeech.LANG_NOT_SUPPORTED || result == TextToSpeech.LANG_MISSING_DATA) {
Toast.makeText(activity, "Language not supported or Missing", Toast.LENGTH_SHORT).show();
} else {
textToSpeech.speak(verselist.get(position), TextToSpeech.QUEUE_FLUSH, null);
}
}
});
return convertView;
}
static class ViewHolder {
private TextView versenumber;
private TextView verselist;
private ImageView share;
private ToggleButton addfavoruite;
private ImageView speakverse;
public ViewHolder(View v) {
versenumber = (TextView) v.findViewById(R.id.versenumber);
verselist = (TextView) v.findViewById(R.id.verse);
share = (ImageView) v.findViewById(R.id.share);
speakverse = (ImageView) v.findViewById(R.id.speakverse);
addfavoruite=(ToggleButton)v.findViewById(R.id.adbookmark);
}
}
public boolean CheckIsDataAlreadyInDBorNot(String TableName, String dbfield, String fieldValue) {
mDBHelper = new DatabaseHelper(activity);
mDb = mDBHelper.getReadableDatabase();
String Query = "Select * from " + TableName + " where " + dbfield + " = " + fieldValue;
Cursor cursor = mDb.rawQuery(Query, null);
if(cursor.getCount() <= 0){
cursor.close();
Toast.makeText(activity, "false", Toast.LENGTH_SHORT).show();
return false;
}else {
Toast.makeText(activity, "TRUE", Toast.LENGTH_SHORT).show();
}
cursor.close();
return true;
}
public void opecolorpicker(){
ColorPicker colorPicker = new ColorPicker(activity);
ArrayList<String>colors=new ArrayList<>();
colors.add("#FF0000");
colors.add("#FFEC33");
colors.add("#3C33FF");
colors.add("#DA33FF");
colors.add("#33FF99");
colors.add("#90FF33");
colors.add("#DD33FF");
colors.add("#F0B27A");
colors.add("#DAF7A6");
colors.add("#34495E");
colorPicker.setColors(colors).setTitle("HIGHLIGHT VERSE").setRoundColorButton(true).setOnChooseColorListener(new ColorPicker.OnChooseColorListener() {
#Override
public void onChooseColor(int position, int color) {
Toast.makeText(activity, ""+color, Toast.LENGTH_SHORT).show();
}
#Override
public void onCancel() {
}
}).show();
}
}

Use this:
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,long id) {
Toast.makeText(ALLVERSE.this, "LIFE RUNS ON CODE", Toast.LENGTH_SHORT).show();
}
});
Instead of:
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(ALLVERSE.this, "LIFE RUNS ON CODE", Toast.LENGTH_SHORT).show();
}
});

First item of listview showing popup menu when it shouldn't

So, I found this weird behavior listview that applying popup menu when a certain condition is met (on this case, if approval is "Unchecked" )
All item on the listview behave the way I expect, except the first item when value of approval is "Accept" or "Denied".
So, here is my code.
Order.java
package com.example.listview;
public class Order {
String name;
String approval;
public Order(String name, String approval) {
this.name = name;
this.approval = approval;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getApproval() {
return approval;
}
public void setApproval(String approval) {
this.approval = approval;
}
}
OrderAdapter.java
package com.example.listview;
import android.app.Activity;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.PopupMenu;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import java.util.List;
public class OrderAdapter extends BaseAdapter {
Activity activity;
List<Order> orders;
LayoutInflater inflater;
public OrderAdapter(Activity activity, List<Order> orders) {
this.activity = activity;
this.orders = orders;
inflater = activity.getLayoutInflater();
}
#Override
public int getCount() {
return orders.size();
}
#Override
public Object getItem(int i) {
return i;
}
#Override
public long getItemId(int i) {
return i;
}
#Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolder holder = null;
if (view == null){
view = inflater.inflate(R.layout.lv_order_item, viewGroup, false);
holder = new ViewHolder();
holder.tvName = view.findViewById(R.id.tv_name);
holder.tvApproval = view.findViewById(R.id.tv_approval);
holder.rlPopUpMenu = view.findViewById(R.id.rl_popUpMenu);
view.setTag(holder);
}else
holder = (ViewHolder)view.getTag();
final Order model = orders.get(i);
holder.tvName.setText(model.getName());
holder.tvApproval.setText(model.getApproval());
holder.tvApproval.setTextColor(Color.parseColor("#D0CACA"));
// Condition For PopUp Menu
if(model.getApproval().equals("Unchecked")) {
// Menu Popup
holder.rlPopUpMenu.setVisibility(View.VISIBLE);
holder.rlPopUpMenu.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
PopupMenu popup = new PopupMenu(view.getContext(), view);
popup.getMenuInflater().inflate(R.menu.order_item_popup_menu, popup.getMenu());
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
#Override
public boolean onMenuItemClick(MenuItem menuItem) {
if(menuItem.getItemId() == R.id.action_accept) {
Toast.makeText(activity, "You Click Accept", Toast.LENGTH_SHORT).show();
}
if(menuItem.getItemId() == R.id.action_denied) {
Toast.makeText(activity, "You Click Denied", Toast.LENGTH_SHORT).show();
}
return true;
}
});
popup.show();
}
});
} else if(model.getApproval().equals("Accept")) {
holder.tvApproval.setTextColor(Color.parseColor("#32FF84"));
} else if(model.getApproval().equals("Denied")) {
holder.tvApproval.setTextColor(Color.parseColor("#1F9999"));
}
return view;
}
class ViewHolder{
TextView tvName;
TextView tvApproval;
RelativeLayout rlPopUpMenu;
}
}
OrderActivity.java
package com.example.listview;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ScrollView;
import java.util.ArrayList;
import java.util.List;
public class OrderActivity extends AppCompatActivity {
List<Order> orders;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_order);
getSupportActionBar().setTitle("List View");
final ScrollView scrollView = findViewById(R.id.order_scrollview);
// To Scroll to the Top when Opening The Activity
scrollView.smoothScrollTo(0, 0);
final NonScrollListView non_scroll_list = (NonScrollListView) findViewById(R.id.lv_order);
orders = new ArrayList<>();
orders.add(new Order("MikeA", "Accept"));
orders.add(new Order("MikeB", "Accept"));
orders.add(new Order("MikeC", "Unchecked"));
orders.add(new Order("MikeD", "Denied"));
orders.add(new Order("MikeE", "Unchecked"));
orders.add(new Order("MikeF", "Unchecked"));
orders.add(new Order("MikeG", "Unchecked"));
orders.add(new Order("MikeH", "Unchecked"));
orders.add(new Order("MikeI", "Accept"));
orders.add(new Order("MikeJ", "Unchecked"));
orders.add(new Order("MikeK", "Unchecked"));
orders.add(new Order("MikeL", "Unchecked"));
final OrderAdapter adapter = new OrderAdapter(this, orders);
non_scroll_list.setAdapter(adapter);
}
}
NonScrollListView.java
package com.example.listview;
import android.content.Context;
import android.util.AttributeSet;
import android.view.ViewGroup;
import android.widget.ListView;
public class NonScrollListView extends ListView {
public NonScrollListView(Context context) {
super(context);
}
public NonScrollListView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public NonScrollListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(
Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);
ViewGroup.LayoutParams params = getLayoutParams();
params.height = getMeasuredHeight();
}
}
Folder layout
activity_order.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView 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:id="#+id/order_scrollview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="none"
android:fillViewport="true"
android:background="#F2F2F2"
tools:context="com.example.listview.OrderActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="12dp">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#F2F2F2">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:background="#F2F2F2"
android:orientation="vertical">
<com.example.listview.NonScrollListView
android:id="#+id/lv_order"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:cacheColorHint="#android:color/transparent"
android:listSelector="#android:color/transparent"
android:background="#FFFFFF">
</com.example.listview.NonScrollListView>
</LinearLayout>
</android.support.v7.widget.CardView>
</RelativeLayout>
</ScrollView>
lv_order_item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="80dp"
android:paddingBottom="13dp"
android:background="#991F1F">
<RelativeLayout
android:id="#+id/rl_popUpMenu"
android:layout_width="70dp"
android:layout_height="40dp"
android:gravity="center"
android:paddingLeft="30dp"
android:visibility="gone"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true">
<ImageView
android:layout_width="4dp"
android:layout_height="18dp"
android:src="#drawable/three_dots_order"/>
</RelativeLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:paddingLeft="20dp"
android:orientation="vertical">
<TextView
android:id="#+id/tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="16sp"
android:textColor="#fff"/>
<TextView
android:id="#+id/tv_approval"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="16sp"
android:textColor="#fff"/>
</LinearLayout>
</RelativeLayout>
Folder menu
order_item_popup_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#+id/action_accept"
android:title="Accept"/>
<item
android:id="#+id/action_denied"
android:title="Denied"/>
</menu>
And here is the picture of the list
As you can see, MikeA's approval value is "Accept",
so the popup menu (the three dot) should not appear.
So, is there anything that I miss ?

Replace your code with this
if(model.getApproval().equals("Unchecked")) {
// Menu Popup
holder.rlPopUpMenu.setVisibility(View.VISIBLE);
holder.rlPopUpMenu.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
PopupMenu popup = new PopupMenu(view.getContext(), view);
popup.getMenuInflater().inflate(R.menu.order_item_popup_menu, popup.getMenu());
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
#Override
public boolean onMenuItemClick(MenuItem menuItem) {
if(menuItem.getItemId() == R.id.action_accept) {
Toast.makeText(activity, "You Click Accept", Toast.LENGTH_SHORT).show();
}
if(menuItem.getItemId() == R.id.action_denied) {
Toast.makeText(activity, "You Click Denied", Toast.LENGTH_SHORT).show();
}
return true;
}
});
popup.show();
}
});
} else if(model.getApproval().equals("Accept")) {
holder.rlPopUpMenu.setVisibility(View.GONE);
holder.tvApproval.setTextColor(Color.parseColor("#32FF84"));
} else if(model.getApproval().equals("Denied")) {
holder.rlPopUpMenu.setVisibility(View.GONE);
holder.tvApproval.setTextColor(Color.parseColor("#1F9999"));
}

Can't get text from editText Android Eclipse

I'm having some issues with my school project. I can't get the text from the textbox. I searched for a solution but nothing found.. I'll be grateful if somebody help me :)
So here is my Java code:
package com.src.vicnote;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.os.Build;
public class NewNoteActivity extends ActionBarActivity {
Button saveButton;
EditText textData;
Context context;
String text;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_new_note);
saveButton = (Button) this.findViewById(R.id.buttonSave);
saveButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
textData = (EditText) findViewById(R.id.editText);
text = textData.getText().toString();
//text = "this is sparta!";
Log.d("ADebugTag", "string: \"" + text + "\" end of note text");
new SaveClass(text/*, context.getApplicationContext()*/);
}
});
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).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.new_note, 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_new_note,
container, false);
return rootView;
}
}
}
And my XML
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.src.vicnote.NewNoteActivity"
tools:ignore="MergeRootFrame" >
<Button
android:id="#+id/buttonSave"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="Save" />
<EditText
android:id="#+id/editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/buttonSave"
android:ems="10"
android:gravity="top"
android:inputType="textMultiLine" >
<requestFocus />
</EditText>
</RelativeLayout>
Also I want to ask you what will happen if the text is cyrillic? Will be there any problem?

Try initializing textData outside of your OnClickListener:
textData = (EditText) findViewById(R.id.editText);
saveButton = (Button) this.findViewById(R.id.buttonSave);
saveButton.setOnClickListener(new View.OnClickListener() { //...

I was also stuck at finding method to get text from edittext. I got resolved this issue by doing the below,
String selQuantity = (((TextView)findViewById(R.id.etxtQuantity)).getText()).toString();
Try this. It works.

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Why is this RecyclerView + CardView example not working? - java

Try setting height from android:layout_height="0dp" to android:layout_height="match_parent" in your RecyclerView. 0dp height is used in LinearLayout, yours is RelativeLayout.

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