TextView under expandableList disappears

TextView under expandableList disappears - java

When there is not much data list of ListView, TextView can be seen well. But when there is a lot of data and the List fills the screen, TextView written test disappears. Please see the picture below
enter image description here
enter image description here
Here is the code source.
https://github.com/hardcodingJeon/ExpandList_recyclerView
thankyou!
MainActivity.java
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Display;
import android.view.View;
import android.widget.ExpandableListView;
import java.util.ArrayList;
public class MainActivity extends Activity {
private ExpandableListView listView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Display newDisplay = getWindowManager().getDefaultDisplay();
int width = newDisplay.getWidth();
ArrayList<GroupItem> DataList = new ArrayList<>();
listView = (ExpandableListView)findViewById(R.id.mylist);
for (int i=1;i<25;i++) {
GroupItem temp = new GroupItem("A"+i);
temp.childItems.add(new GroupItem.ChildItem("1","2"));
temp.childItems.add(new GroupItem.ChildItem("2","3"));
temp.childItems.add(new GroupItem.ChildItem("4","5"));
DataList.add(temp);
}
ExpandAdapter adapter = new ExpandAdapter(getApplicationContext(), R.layout.group_row, R.layout.activity_child, DataList);
listView.setIndicatorBounds(width - 50, width);
listView.setAdapter(adapter);
}
}
ExpandAdapter.java
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
public class ExpandAdapter extends BaseExpandableListAdapter {
private Context context;
private int groupLayout = 0;
private int chlidLayout = 0;
private ArrayList<GroupItem> DataList;
private LayoutInflater myinf = null;
public ExpandAdapter(Context context,int groupLay,int chlidLay,ArrayList<GroupItem> DataList){
this.context = context;
this.groupLayout = groupLay;
this.chlidLayout = chlidLay;
this.DataList = DataList;
this.myinf = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
if(convertView == null){
convertView = myinf.inflate(this.groupLayout, parent, false);
}
TextView groupName = (TextView)convertView.findViewById(R.id.groupName);
groupName.setText(DataList.get(groupPosition).groupTitle);
return convertView;
}
#Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
if(convertView == null){
convertView = myinf.inflate(this.chlidLayout, parent, false);
}
RecyclerView recyclerView = convertView.findViewById(R.id.recyclerView);
RecyclerAdapter recyclerAdapter = new RecyclerAdapter(context,DataList.get(groupPosition).childItems);
LinearLayoutManager mManager = new LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false);
recyclerView.setLayoutManager(mManager);
recyclerView.setAdapter(recyclerAdapter);
return convertView;
}
#Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return true;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return true;
}
#Override
public Object getChild(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return DataList.get(groupPosition).childItems.get(childPosition);
}
#Override
public long getChildId(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return childPosition;
}
#Override
public int getChildrenCount(int groupPosition) {
// TODO Auto-generated method stub
return 1;
}
#Override
public GroupItem getGroup(int groupPosition) {
// TODO Auto-generated method stub
return DataList.get(groupPosition);
}
#Override
public int getGroupCount() {
// TODO Auto-generated method stub
return DataList.size();
}
#Override
public long getGroupId(int groupPosition) {
// TODO Auto-generated method stub
return groupPosition;
}
}
GroupItem.java
import java.util.ArrayList;
public class GroupItem {
public String groupTitle;
public ArrayList<ChildItem> childItems = new ArrayList<>();
public GroupItem(String groupTitle) {
this.groupTitle = groupTitle;
}
public static class ChildItem {
String beforePrice;
String afterPrice;
public ChildItem(String beforePrice, String afterPrice) {
this.beforePrice = beforePrice;
this.afterPrice = afterPrice;
}
}
}
RecyclerAdapter.java
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
public class RecyclerAdapter extends RecyclerView.Adapter {
Context context;
ArrayList<GroupItem.ChildItem> items;
public RecyclerAdapter(Context context, ArrayList<GroupItem.ChildItem> items) {
this.context = context;
this.items = items;
}
//뷰id를 참조함
#NonNull
#Override
public RecyclerView.ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(context);
View itemView = inflater.inflate(R.layout.child_item,parent,false);
VH holder = new VH(itemView);
return holder;
}
#Override
public void onBindViewHolder(#NonNull RecyclerView.ViewHolder holder, int position) {
VH vh = (VH)holder;
GroupItem.ChildItem item = items.get(position);
vh.beforePrice.setText( item.beforePrice );
vh.afterPrice.setText( item.afterPrice );
}
#Override
public int getItemCount() {
return items.size();
}
class VH extends RecyclerView.ViewHolder{
TextView beforePrice;
TextView afterPrice;
Button btn;
public VH(#NonNull View itemView) {
super(itemView);
beforePrice = itemView.findViewById(R.id.child_item_beforePrice);
afterPrice = itemView.findViewById(R.id.child_item_afterPrice);
btn = itemView.findViewById(R.id.btn);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(context, items.get(getLayoutPosition()).beforePrice+"\n"+items.get(getLayoutPosition()).afterPrice, Toast.LENGTH_SHORT).show();
}
});
}
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="15dp">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ExpandableListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:indicatorRight="?android:attr/expandableListPreferredItemIndicatorRight"
android:id="#+id/mylist" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TEST"
android:textSize="20sp"/>
</LinearLayout>
</ScrollView>
</LinearLayout>
activity_child.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.recyclerview.widget.RecyclerView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
child_item.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
app:cardCornerRadius="8dp"
app:contentPaddingTop="4dp"
android:layout_marginTop="4dp"
android:layout_marginBottom="4dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp">
<RelativeLayout
android:layout_width="250dp"
android:layout_height="wrap_content"
android:padding="15dp">
<TextView
android:id="#+id/child_item_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="월간유니콘\nPLUS 31"
android:textColor="#color/black"
android:textSize="20sp"
android:layout_centerHorizontal="true"
android:gravity="center"/>
<TextView
android:id="#+id/child_item_period"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="1 개월간 매일 2회"
android:layout_below="#id/child_item_title"
android:layout_centerHorizontal="true"
android:layout_marginTop="15dp"/>
<LinearLayout
android:id="#+id/child_item_Linear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/child_item_period"
android:orientation="vertical"
android:layout_marginTop="10dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="정기구독"
android:layout_below="#id/child_item_period"/>
<!--data-->
<TextView
android:id="#+id/child_item_beforePrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="62000원"/>
<!--data-->
<TextView
android:id="#+id/child_item_afterPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="29000/월"/>
</LinearLayout>
<Button
android:id="#+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="구매"
android:layout_toRightOf="#id/child_item_Linear"
android:layout_below="#id/child_item_period"
android:layout_marginLeft="30dp"
android:layout_marginTop="15dp"
/>
</RelativeLayout>
</androidx.cardview.widget.CardView>
child_row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="#+id/childName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="25dip"
android:paddingLeft="40dip"
/>
<CheckBox
android:textColor="#111111"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New CheckBox"
android:id="#+id/checkBox" />
</LinearLayout>
group_row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:id="#+id/groupName"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:textSize="20dp"
android:paddingLeft="5px"
android:textColor = "#FFA500"
/>
</LinearLayout>

you have set the ExpandableListView height as wrap content. Hence when the no of elements increase it pushes the TextView below the available screen . I would suggest
1.using ConstraintLayout or RelativeLayout
2. Affixing the TextView at the very bottom and then arranging your Expandable list view relative to that
Otherwise set the height of Expandable ListView to a particular predetermined value(Not Adviced) and it should work perfectly

Related

Android Studio Grid View doesn't show when I run the app

I created a Java class that should display something like this:
But this is what I get when I run the app:
It doesn't show what I wanted and Android Studio doesn't show any error in Logcat, so I don't know why it's not working.
This is the code for the class SetsActivity:
package com.example.myquiz;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.MenuItem;
import android.widget.GridView;
import android.widget.Toolbar;
public class SetsActivity extends AppCompatActivity {
private GridView sets_grid;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sets);
androidx.appcompat.widget.Toolbar toolbar = findViewById(R.id.set_toolbar);
//setSupportActionBar(toolbar);
String title = getIntent().getStringExtra("CATEGORY");
getSupportActionBar().setTitle(title);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
sets_grid = findViewById(R.id.sets_gridview);
SetsAdapter adapter = new SetsAdapter(2);
sets_grid.setAdapter(adapter);
}
#Override
public boolean onOptionsItemSelected(#NonNull MenuItem item) {
if(item.getItemId() == android.R.id.home)
{
SetsActivity.this.finish();
}
return super.onOptionsItemSelected(item);
}
}
I also created an adapter class SetsAdapter so I'm gonna post the code for it as well:
package com.example.myquiz;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
public class SetsAdapter extends BaseAdapter {
private int numOfSets;
public SetsAdapter(int numOfSets) {
this.numOfSets = numOfSets;
}
#Override
public int getCount() {
return 0;
}
#Override
public Object getItem(int position) {
return null;
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view;
if (convertView == null) {
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.set_item_layout, parent, false);
} else {
view = convertView;
}
view.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(parent.getContext(),QuestionActivity.class);
parent.getContext().startActivity(intent);
}
});
((TextView) view.findViewById(R.id.setNo_tv)).setText(String.valueOf(position + 1));
return view;
}
}
And here is the code for the XML file:
<?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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".SetsActivity"
android:orientation="vertical">
<androidx.appcompat.widget.Toolbar
android:id="#+id/set_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/colorPrimary"
android:theme="#style/ThemeOverlay.AppCompat.Dark"
></androidx.appcompat.widget.Toolbar>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Sets"
android:textSize="26sp"
android:textStyle="bold"
android:padding="16dp" />
<GridView
android:layout_width="match_parent"
android:layout_height="0dp"
android:id="#+id/sets_gridview"
android:layout_weight="1"
android:gravity="center"
android:horizontalSpacing="16dp"
android:verticalSpacing="16dp"
android:padding="16dp"
android:columnWidth="100dp"
android:numColumns="auto_fit"
></GridView>
</LinearLayout>
Here is the code for the XML file set_item_layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="100dp"
android:layout_height="100dp"
android:orientation="vertical"
android:gravity="center"
android:background="#drawable/round_corner"
android:backgroundTint="#FFC3C3"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="1"
android:id="#+id/setNo_tv"
android:textStyle="bold"
android:textColor="#android:color/black"
android:textSize="45sp"></TextView>
</LinearLayout>

The getCount() method in the SetsAdapter should return numOfSets not 0.
#Override
public int getCount() {
return numOfSets;
}

Showing xml for correct view

When a user logs in to my app, they can either click the view students button or daily grading button. The view students will display a student's image and their name. The daily grading will display the student's image, name, and two checkboxes that says pass or fail. Now the issue I have is that the checkboxes for pass and fail are showing up in my activity_view_students.xml view when it should not be. It should only show when a user clicks daily grading. I will put images below to make it clearer
What it looks like in the activity_view_students.xml
What it should look like in activity_view_students.xml
I will paste all relevant code below.
ViewStudents.java
package com.example.studenttracker;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.Query;
import com.google.firebase.database.ValueEventListener;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
public class ViewStudents extends AppCompatActivity {
RecyclerView recyclerView;
Button addStudent;
private DatabaseReference myRef;
public ArrayList<Students> students;
private RecyclerAdapter recyclerAdapter;
private Button orderStudents;
private EditText mEditTextAge;
private EditText mEditTextAssignment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_view_students);
recyclerView = findViewById(R.id.recyclerView);
addStudent = findViewById(R.id.addStudentButton);
mEditTextAge = findViewById(R.id.EditTextAge);
mEditTextAssignment = findViewById(R.id.EditTextAssignment);
orderStudents = findViewById(R.id.orderStudents);
addStudent.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(ViewStudents.this, AddStudent.class));
}
});
recyclerView.setLayoutManager(new GridLayoutManager(this, 2));
recyclerView.setHasFixedSize(true);
myRef = FirebaseDatabase.getInstance().getReference();
students = new ArrayList<>();
ClearAll();
GetDataFromFirebase();
}
private void GetDataFromFirebase() {
Query query = myRef.child("student");
query.addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot dataSnapshot) {
ClearAll();
for(DataSnapshot snapshot: dataSnapshot.getChildren()) {
Students student = new Students();
if (snapshot.child("url").getValue() == null) {
student.setImageUrl(snapshot.child("imageUrl").getValue().toString());
}
else {
student.setImageUrl(snapshot.child("url").getValue().toString());
}
// student.setAge(mEditTextAge.getText().toString());
// student.setAssignment(mEditTextAssignment.getText().toString().trim());
student.setName(snapshot.child("name").getValue().toString());
students.add(student);
}
recyclerAdapter = new RecyclerAdapter(getApplicationContext(), students);
recyclerView.setAdapter(recyclerAdapter);
recyclerAdapter.notifyDataSetChanged();
}
#Override
public void onCancelled(#NonNull DatabaseError databaseError) {
}
});
}
private void ClearAll() {
if (students != null) {
students.clear();
if(recyclerAdapter != null) {
recyclerAdapter.notifyDataSetChanged();
}
}
students = new ArrayList<>();
}
public void orderStudents(View view) {
Collections.sort( students, new Comparator<Students>() {
#Override
public int compare( Students o1, Students o2 ) {
return o1.name.compareTo( o2.name );
}
});
recyclerAdapter.notifyDataSetChanged();
}
}
RecyclerAdapter.java
package com.example.studenttracker;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.bumptech.glide.Glide;
import java.util.ArrayList;
public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.ViewHolder> {
private OnItemClickListener mListener;
public interface OnItemClickListener {
void onItemClick(int position);
}
public void setOnItemClickListener(OnItemClickListener listener) {
mListener = listener;
}
private static final String Tag = "RecyclerView";
private Context mContext;
private ArrayList<Students> studentsArrayList;
public RecyclerAdapter(Context mContext, ArrayList<Students> studentsArrayList) {
this.mContext = mContext;
this.studentsArrayList = studentsArrayList;
}
#NonNull
#Override
public RecyclerAdapter.ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.activity_student_item,parent,false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull ViewHolder holder, int position) {
//TextView
holder.textView.setText(studentsArrayList.get(position).getName());
Glide.with(mContext).load(studentsArrayList.get(position).getImageUrl()).into(holder.imageView);
// if (studentsArrayList.get(position).get) { //check if you need the buttons or not
// holder..setVisibility(View.VISIBLE);
// holder.checkBox2.setVisibility(View.VISIBLE);
// } else {
// holder.checkBox.setVisibility(View.GONE);
// holder.checkBox2.setVisibility(View.GONE);
// }
}
#Override
public int getItemCount() {
return studentsArrayList.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
ImageView imageView;
TextView textView;
public ViewHolder(#NonNull View itemView) {
super(itemView);
imageView = itemView.findViewById(R.id.imageView);
textView = itemView.findViewById(R.id.textView);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mListener != null) {
int position = getAdapterPosition();
}
}
});
}
}
}
activity_view_students.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=".ViewStudents">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="409dp"
android:layout_height="729dp"
android:layout_marginEnd="1dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" >
</androidx.recyclerview.widget.RecyclerView>
<Button
android:id="#+id/addStudentButton"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:text="Add Students"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="#+id/orderStudents"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="orderStudents"
android:text="Order Students"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
daily_grading.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=".DailyGrading">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="409dp"
android:layout_height="729dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
activity_student_item.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="wrap_content"
tools:context=".DailyGrading">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:foreground="?android:attr/selectableItemBackground"
app:cardElevation="2dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
</androidx.cardview.widget.CardView>
<RelativeLayout
android:id="#+id/relativeLayout2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp"
tools:layout_editor_absoluteX="0dp"
tools:layout_editor_absoluteY="52dp">
<ImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_marginTop="50dp"
android:paddingTop="20dp"
android:scaleType="centerCrop" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/imageView"
android:layout_margin="10dp"
android:textSize="16sp" />
<CheckBox
android:id="#+id/passc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/textView"
android:text="PASS" />
<CheckBox
android:id="#+id/failc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/textView"
android:layout_toRightOf="#+id/passc"
android:text="FAIL" />
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
GradingRecyclerAdapter
package com.example.studenttracker;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.bumptech.glide.Glide;
import java.util.ArrayList;
public class GradingRecyclerAdapter extends RecyclerView.Adapter<GradingRecyclerAdapter.ViewHolder> {
private OnItemClickListener mListener;
public interface OnItemClickListener {
void onItemClick(int position);
}
public void setOnItemClickListener(OnItemClickListener listener) {
mListener = listener;
}
private static final String Tag = "RecyclerView";
private Context mContext;
private ArrayList<Students> studentsArrayList;
public GradingRecyclerAdapter(Context mContext, ArrayList<Students> studentsArrayList) {
this.mContext = mContext;
this.studentsArrayList = studentsArrayList;
}
#NonNull
#Override
public GradingRecyclerAdapter.ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.activity_grading_student_item,parent,false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull ViewHolder holder, int position) {
//TextView
holder.textView.setText(studentsArrayList.get(position).getName());
Glide.with(mContext).load(studentsArrayList.get(position).getImageUrl()).into(holder.imageView);
}
#Override
public int getItemCount() {
return studentsArrayList.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
ImageView imageView;
TextView textView;
Button passButton;
Button failButton;
public ViewHolder(#NonNull View itemView) {
super(itemView);
imageView = itemView.findViewById(R.id.imageView);
textView = itemView.findViewById(R.id.textView);
passButton = itemView.findViewById(R.id.PASS);
failButton = itemView.findViewById(R.id.FAIL);
// passButton.setVisibility(View.GONE);
// failButton.setVisibility(View.GONE);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mListener != null) {
int position = getAdapterPosition();
}
}
});
}
}
}
activity_grading_student_item
<?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="wrap_content"
tools:context=".DailyGrading">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:foreground="?android:attr/selectableItemBackground"
app:cardElevation="2dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
</androidx.cardview.widget.CardView>
<RelativeLayout
android:id="#+id/relativeLayout2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp"
tools:layout_editor_absoluteX="0dp"
tools:layout_editor_absoluteY="52dp">
<ImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_marginTop="50dp"
android:paddingTop="20dp"
android:scaleType="centerCrop" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/imageView"
android:layout_margin="10dp"
android:textSize="16sp" />
<CheckBox
android:id="#+id/PASS"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/textView"
android:text="PASS" />
<CheckBox
android:id="#+id/FAIL"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/textView"
android:layout_toRightOf="#+id/PASS"
android:text="FAIL" />
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

You can simply use different adapters
create another activity_student_item.xml let's say activity_view_student_item.xml and remove the checkboxes from that one
create another adapter for that recyclerView but change
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.activity_student_item,parent,false);
in the new adapter to
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.activity_view_student_item,parent,false);
and in the ViewStudents activity set the recycler's Adapter to that new adapter

The expandable list view is not expanding the list when clicked. I tried to set the clickable but still clicking on list doesn't expand anything

I used an expandable list view in the main layout and then used other two layout. The list_parent includes textfield, so clicking on that textfield it should expand to show the third layout which is the list_child and it also contain a text view.
But the problem is that whenever I click on those texts on the expandable list view in activity_main it doesn't expand. I also tried to set the clickable as true in activity_main and added android:descendantFocusability="blocksDescendants" in the ExpandableListView but it's still not expanding on click.
MainActivity.java
package com.calcounterapplication.demoexlist;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.ListView;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class MainActivity extends AppCompatActivity {
ExpandableListView expandableListView;
List<String> langs;
Map<String, List<String>> topics;
ExpandableListAdapter listAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
expandableListView = (ExpandableListView) findViewById(R.id.expandableListView);
fillData();
listAdapter = new MyExListAdapter(this,langs,topics);
expandableListView.setAdapter(listAdapter);
}
public void fillData()
{
langs = new ArrayList<>();
topics = new HashMap<>();
langs.add("Java");
langs.add("C");
List<String> java = new ArrayList<>();
List<String> c = new ArrayList<>();
java.add("Super");
java.add("Encapsulation");
java.add("Methods");
c.add("Procedure");
c.add("Pointers");
c.add("Array");
topics.put(langs.get(0),java);
topics.put(langs.get(1),c);
}
}
MyExListAdapter.java
package com.calcounterapplication.demoexlist;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
import java.util.List;
import java.util.Map;
public class MyExListAdapter extends BaseExpandableListAdapter
{
Context context;
List<String> langs;
Map<String, List<String>> topics;
public MyExListAdapter(Context context, List<String> langs, Map<String, List<String>> topics) {
this.context = context;
this.langs = langs;
this.topics = topics;
}
#Override
public int getGroupCount() {
return langs.size();
}
#Override
public int getChildrenCount(int groupPosition) {
return topics.get(langs.get(groupPosition)).size();
}
#Override
public Object getGroup(int groupPosition) {
return langs.get(groupPosition);
}
#Override
public Object getChild(int groupPosition, int childPosition) {
return topics.get(langs.get(groupPosition)).get(childPosition);
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
String lang = (String) getGroup(groupPosition);
if(convertView == null)
{
LayoutInflater inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.list_parent,null);
}
TextView txtParent = (TextView) convertView.findViewById(R.id.txtParent);
txtParent.setText(lang);
return convertView;
}
#Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
String topic = (String) getChild(groupPosition,childPosition);
if(convertView == null)
{
LayoutInflater inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.list_child,null);
}
TextView txtChild = (TextView) convertView.findViewById(R.id.txtChild);
txtChild.setText(topic);
return convertView;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
activity_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"
android:clickable="true"
android:focusable="false"
tools:context=".MainActivity">
<ExpandableListView
android:id="#+id/expandableListView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:descendantFocusability="blocksDescendants" />
</RelativeLayout>
list_parent.xml
<?xml version="1.0" encoding="utf-8"?>
<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">
<TextView
android:id="#+id/txtParent"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPersonName"
android:text="Large Text" />
</LinearLayout>
list_child.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Name"
android:id="#+id/txtChild"
android:layout_gravity="center" />
</LinearLayout>

Clickable element of ListView with gridView inside (Android)

I want to make listView element clickable.
When i add gridView inside listView then i cant click on listView element..
How to make listView element clickable when gridView is inside listView?
I try to set focusable, descendantFocusability, clickable...
ProductsFragment.java
package pl.pieczolap.ui.products;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.toolbox.Volley;
import com.bumptech.glide.Glide;
import com.squareup.picasso.Picasso;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.ViewModelProviders;
import pl.globoox.pieczolap.R;
import pl.pieczolap.API.getProducts;
import pl.pieczolap.MyGridView;
public class ProductsFragment extends Fragment {
private ProductsViewModel StampViewModel;
ArrayList<String> product_uid_shop = new ArrayList();
ArrayList<String> product_uid_product = new ArrayList();
ArrayList<String> product_name = new ArrayList();
ArrayList<String> product_info = new ArrayList();
ArrayList<String> product_stamps = new ArrayList();
ArrayList<String> product_clientStamps = new ArrayList();
MyGridView gridView_stamps;
ListView listView_products;
SharedPreferences sharedPref;
Integer clientStamps;
Integer needStamps;
ImageView imageView_loadingData;
TextView textView_winner;
public View onCreateView(#NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
StampViewModel =
ViewModelProviders.of(this).get(ProductsViewModel.class);
View root = inflater.inflate(R.layout.fragment_products, container, false);
// LOAD GIF LOADING IMAGE
imageView_loadingData = root.findViewById(R.id.imageView_loadingData);
Glide.with(root).load(R.drawable.loadingdots).placeholder(R.drawable.loadingdots).into(imageView_loadingData);
listView_products = root.findViewById(R.id.listView_products);
sharedPref = getActivity().getApplicationContext().getSharedPreferences("pl.piecozlap", Context.MODE_PRIVATE);
Bundle arguments = this.getArguments();
String uid_shop = arguments.getString("uid_shop", "none");
// GET ALL STAMPS
Response.Listener<String> responseListenerUserComments = new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response);
int errorCode = jsonResponse.getInt("errorCode");
// CANT CONNECT TO DATABASE
if (errorCode == 1) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity().getApplicationContext());
builder.setMessage("Brak połączenia z bazą danych!").setNegativeButton("PONÓW", null).create().show();
}
// GET STAMP AND PRODUCT INFO
if (errorCode == 2) {
JSONArray products = jsonResponse.getJSONArray("products");
for (int i = 0; i < products.length(); i++) {
JSONObject jsonObject = products.getJSONObject(i);
product_uid_shop.add(jsonObject.getString("uid_shop"));
product_uid_product.add(jsonObject.getString("uid_product"));
product_name.add(jsonObject.getString("name"));
product_info.add(jsonObject.getString("info"));
product_stamps.add(jsonObject.getString("stamps"));
product_clientStamps.add(jsonObject.getString("clientStamps"));
}
// HIDE LOADING GIF
imageView_loadingData.setVisibility(View.INVISIBLE);
ProductsAdapter productsAdapter = new ProductsAdapter();
listView_products.setAdapter(productsAdapter);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
getProducts getStamps = new getProducts(sharedPref.getString("uid_client", "none"), uid_shop, responseListenerUserComments);
RequestQueue queue = Volley.newRequestQueue(getActivity().getApplicationContext());
queue.add(getStamps);
return root;
}
// LISTVIEW CUSTOMADAPTER
// LISTVIEW CUSTOMADAPTER
// LISTVIEW CUSTOMADAPTER
// LISTVIEW CUSTOMADAPTER
public class ProductsAdapter extends BaseAdapter {
#Override
public int getCount() {
return product_uid_shop.size();
}
#Override
public Object getItem(int position) {
return null;
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
convertView = getLayoutInflater().inflate(R.layout.customlayout_products, null);
clientStamps = Integer.valueOf(product_clientStamps.get(position));
needStamps = Integer.valueOf(product_stamps.get(position));
TextView textView_product_name = convertView.findViewById(R.id.textView_product_name);
TextView textView_product_info = convertView.findViewById(R.id.textView_product_info);
textView_product_name.setText(String.valueOf(clientStamps));
textView_product_info.setText(product_info.get(position));
// WINNER TEXTVIEW
TextView textView_winner = convertView.findViewById(R.id.textView_winner);
if (clientStamps == needStamps) {
textView_winner.setVisibility(View.VISIBLE);
} else {
textView_winner.setVisibility(View.INVISIBLE);
}
// -------------------- //
// CLICK ON SHOP //
// -------------------- //
convertView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.d("TAGA", "sasdadsa");
new AlertDialog.Builder(getActivity().getApplicationContext())
.setTitle("Delete entry")
.setMessage("Are you sure you want to delete this entry?")
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Continue with delete operation
}
})
.setNegativeButton(android.R.string.no, null)
.setIcon(android.R.drawable.ic_dialog_alert)
.show();
}
});
gridView_stamps = convertView.findViewById(R.id.gridView_stamps);
StampsAdapter stampAdapter = new StampsAdapter();
gridView_stamps.setAdapter(stampAdapter);
gridView_stamps.setClickable(false);
return convertView;
}
}
// STAMP GRIDVIEW
// STAMP GRIDVIEW
// STAMP GRIDVIEW
// STAMP GRIDVIEW
public class StampsAdapter extends BaseAdapter {
#Override
public int getCount() {
return needStamps;
}
#Override
public Object getItem(int position) {
return null;
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
convertView = getLayoutInflater().inflate(R.layout.customlayout_onestamp, null);
if (position < clientStamps) {
final ImageView imageView = convertView.findViewById(R.id.imgageView_onestamp);
Picasso.get().load("http://pieczolap.pl/admin/shops/999/stamp.jpg").into(imageView);
}
return convertView;
}
}
}
customlayout_products.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="wrap_content"
android:layout_height="400dp"
android:layout_marginLeft="20dp"
android:layout_marginTop="20dp"
android:layout_marginRight="20dp"
android:layout_marginBottom="50dp"
android:background="#drawable/customlayout_shops_background"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/relativeLayout"
android:layout_width="wrap_content"
android:layout_height="60dp"
android:background="#drawable/customlayout_shops_background">
<TextView
android:id="#+id/textView_product_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="Info"
android:textSize="15dp" />
<TextView
android:id="#+id/textView_product_info"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/textView_product_name"
android:layout_margin="5dp"
android:text="Info"
android:textSize="10dp" />
</RelativeLayout>
<pl.pieczolap.MyGridView
android:id="#+id/gridView_stamps"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:clickable="false"
android:columnWidth="100dp"
android:gravity="center"
android:horizontalSpacing="10dp"
android:numColumns="4"
android:padding="10dp"
android:stretchMode="spacingWidth"
android:verticalSpacing="10dp"
app:layout_constraintTop_toBottomOf="#id/relativeLayout"
tools:ignore="MissingConstraints" />
<TextView
android:id="#+id/textView_winner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:gravity="center"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:rotation="-6"
android:layout_margin="5dp"
android:textColor="#FF0000"
android:textStyle="bold"
android:text="Zebrano wszystkie!"
android:textSize="30dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
fragment_products.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:descendantFocusability="blocksDescendants"
android:focusable="true"
android:layout_height="match_parent">
<ListView
android:id="#+id/listView_products"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:descendantFocusability="blocksDescendants"
android:divider="#null"
android:focusable="true"
android:clickable="true"
android:dividerHeight="10dp"
android:padding="4dp"
android:layout_marginBottom="70dp"
app:layout_constraintTop_toBottomOf="#+id/button_addShop" />
<ImageView
android:id="#+id/imageView_loadingData"
android:layout_width="350dp"
android:layout_height="100dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

Loading images from URLs into gridview

I have a gridview which is supposed to contain an image and a text below it. I am using Picasso to load the images but when I run the app, nothing appears in the imageviews!
Below is my MainActivity.java code:
import android.content.Context;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.GridView;
import android.widget.ImageView;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
import java.util.Arrays;
public class MainActivity extends AppCompatActivity {
GridView gv;
Context context;
ArrayList prgmName;
public static String [] prgmNameList={"C++","VB.NET","JAVA", "JavaScript", "MySQL", "PHP"};
public static String [] prgmImgFiles = {"cpp.png", "vb.net.png", "java.png", "js.png", "mysql.png", "php.png"};
public static Integer [] prgmImages={R.mipmap.img_0, R.mipmap.img_1, R.mipmap.img_2};
public ArrayList<String> arrayList = new ArrayList<String>(Arrays.asList(prgmNameList));
public ArrayList<Integer> arrayList2 = new ArrayList<Integer>(Arrays.asList(prgmImages));
public ArrayList<String> arrayList3 = new ArrayList<String>(Arrays.asList(prgmImgFiles));
public static GridViewAdapter gvd;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void onLoadClick(View v)
{
gv=(GridView) findViewById(R.id.gridView2);
gvd = new GridViewAdapter(this, arrayList, arrayList3);
gv.setAdapter(gvd);
ImageView iv2 = (ImageView)findViewById(R.id.imageViewTest);
// addItem("JavaScript", "http://10.0.2.2/picgal/images/js.png");
Picasso.with(this).load("http://10.0.2.2/picgal/images/java.png").into(iv2);
}
public void addItem(String txt, String ImgID)
{
arrayList.add(txt);
arrayList3.add(ImgID);
gvd.notifyDataSetChanged();
}
}
Below is my GridViewAdapter.java code:
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
/**
* Created by ITM on 7/4/2016.
*/
public class GridViewAdapter extends BaseAdapter {
ArrayList<String> result;
Context context;
ArrayList<String> imageId;
private static LayoutInflater inflater=null;
public static final String server = "http://10.0.2.2/picgal/images/";
public Holder holder=new Holder();
public GridViewAdapter(MainActivity mainActivity, ArrayList<String> prgmNameList, ArrayList<String> prgmImages) {
// TODO Auto-generated constructor stub
result=prgmNameList;
context=mainActivity;
imageId=prgmImages;
inflater = ( LayoutInflater )context.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return result.size();
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
public class Holder
{
public TextView tv;
public ImageView img;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View rowView;
rowView = inflater.inflate(R.layout.img_layout, null);
holder.tv=(TextView) rowView.findViewById(R.id.txt);
holder.img=(ImageView) rowView.findViewById(R.id.img);
holder.tv.setText(result.get(position));
Log.i("getView", imageId.get(position));
Picasso.with(context).load(imageId.get(position)).into(holder.img);
// holder.img.setImageResource(imageId.get(position));
rowView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(context, "You Clicked " + result.get(position) +"\n"+getCount(), Toast.LENGTH_LONG).show();
}
});
return rowView;
}
}
The activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<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="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.badihbarakat.gridviewapp.MainActivity">
<GridView
android:layout_width="wrap_content"
android:layout_height="250dp"
android:id="#+id/gridView2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:background="#ffe5e5"
android:columnWidth="100dp"
android:drawSelectorOnTop="true"
android:gravity="center"
android:numColumns="auto_fit"
android:stretchMode="spacingWidthUniform"
android:verticalSpacing="5dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_marginTop="5dp"
android:scrollIndicators="left" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Load"
android:id="#+id/btnLoad"
android:layout_below="#+id/gridView2"
android:layout_centerHorizontal="true"
android:onClick="onLoadClick" />
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/imageViewTest"
android:layout_below="#+id/btnLoad"
android:layout_centerHorizontal="true" />
</RelativeLayout>
The img_layout.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="match_parent"
android:orientation="vertical">
<FrameLayout
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true">
<ImageView
android:id="#+id/img"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/frame" />
</FrameLayout>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/txt"
android:textAlignment="center"/>
</LinearLayout>
I have added a test ImageView below the button to test the Picasso object working. It is working fine. Can any one help please.
Thanks

1.You are passing wrong arguments in the gridView's constructor.
gvd = new GridViewAdapter(this, arrayList, arrayList3);
should be
gvd = new GridViewAdapter(this, arrayList, arrayList2);
as stated in your code, arrayList2 consists of Images.
2.In adapter, change the second argument in constructor:
from ArrayList<String> to ArrayList<Integer>
public GridViewAdapter(MainActivity mainActivity, ArrayList<String> prgmNameList, ArrayList<Integer> prgmImages) {
//...
}
After this, try passing it to Picasso.
New :
Can you try the following code :
//server url
String imageURL = ""
//array of images passed in constructor to append with url
String arrayOfImages[] = imageId;
String completeImageURL = server + arrayOfImages[position];
Picasso.with(context)
.load(completeImageURL)
.into(holder.img);

Best ever I used , ImageLoader Library
https://github.com/nostra13/Android-Universal-Image-Loader
ImageLoader imageLoader = ImageLoader.getInstance();
imageLoader.displayImage(imageUri, imageView);

Thanks for all of you who assisted in this question.
Actually, after revising the Picasso code, I discovered that the path to the image file was missing!
What I have put was:
Picasso.with(context).load(imageId.get(position)).into(holder.img);
As imageId.get(position) contains only the file name and not the full path on the server, the Picasso was not able to find the file!
The correct code is:
Picasso.with(context).load(server+imageId.get(position)).into(holder.img);
Where server is a String containing the full path of the images folder.
Thanks again to all of you.

We Keep Coding

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

TextView under expandableList disappears - java

Related

Android Studio Grid View doesn't show when I run the app

Showing xml for correct view

The expandable list view is not expanding the list when clicked. I tried to set the clickable but still clicking on list doesn't expand anything

Clickable element of ListView with gridView inside (Android)

Loading images from URLs into gridview

Categories

Resources