i would like to add to a LinearLayout some imageViews dynamically in my app.
My following code doesn't show errors and prints what it is supposed to on logcat each time an ImageView is added from java code.
My problem is that when i run the app the images don't appear on screen....any idea where i am doing wrong ?
thanks a lot.
public class MesListesFragment extends Fragment {
private RecyclerView mes_listes_recyclerView;
private ArrayList<ListItem> liste_items;
private LinearLayout list_card_categories;
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.mes_listes_fragment, container, false);
View view2 = inflater.inflate(R.layout.list_item, container, false);
mes_listes_recyclerView = view.findViewById(R.id.mes_listes_recyclerView);
list_card_categories = view2.findViewById(R.id.list_card_recyclerView);
liste_items = new ArrayList<>();
for (int i = 0; i < 10; i ++){
liste_items.add(new ListItem("Liste des ploucs", "18 Août 198" + i));
}
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
mes_listes_recyclerView.setLayoutManager(linearLayoutManager);
mes_listes_recyclerView.setAdapter(new ListViewAdapter(getContext(), liste_items));
for (int i = 0; i < 8; i++){
ImageView image = new ImageView(getContext());
image.setImageResource(R.drawable.user);
list_card_categories.addView(image);
Log.d("view created", "...");
}
return view;
}
}
Here is the xml, the file's called list_item.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:layout_width="match_parent"
android:layout_height="150dp"
android:layout_marginHorizontal="10dp"
android:layout_marginTop="10dp"
app:cardCornerRadius="10dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/list_card_first_container"
android:layout_width="match_parent"
android:layout_height="100dp"
android:baselineAligned="false"
android:orientation="horizontal"
android:weightSum="100">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="50"
android:gravity="center"
android:orientation="vertical">
<TextView
android:id="#+id/list_card_textView_nom_liste"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Nom de la liste"></TextView>
<TextView
android:id="#+id/list_card_textView_date_liste"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Date liste"></TextView>
</LinearLayout>
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="50">
<LinearLayout
android:id="#+id/list_card_recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="50"
android:gravity="center"
android:orientation="horizontal">
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
<LinearLayout
android:id="#+id/list_card_second_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#id/list_card_first_container"
android:gravity="center"
android:orientation="horizontal"
android:paddingVertical="5dp">
<Button
android:id="#+id/list_card_button_editer"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:layout_marginEnd="20dp"
android:background="#color/bleu_fb"
android:text="#string/editer"></Button>
<Button
android:id="#+id/list_card_button_supprimer"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:background="#android:color/holo_red_light"
android:text="#string/supprimer"></Button>
</LinearLayout>
</RelativeLayout>
</androidx.cardview.widget.CardView>
Related
I want to display a recycler view inside the ExpandableListView header item.But I am getting an issue my header is not clickable when I put a recycler view in it.
Here is my code:-
header.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="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="1"
android:padding="8dp"
android:background="#color/grey">
<TextView
android:id="#+id/lblListHeader"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:paddingLeft="5dp"
android:textSize="15dp"
android:layout_weight=".25"
android:text="#"
android:textColor="#color/ModeltitleColor" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".65"
>
<android.support.v7.widget.RecyclerView
android:id="#+id/ivRecyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
/>
</LinearLayout>
<ImageView
android:id="#+id/iv_group_indicator"
android:layout_width="0dp"
android:layout_height="30dp"
android:layout_gravity="center_vertical"
android:layout_weight=".10"
android:src="#drawable/ic_arrow_drop_down_black_24dp" />
</LinearLayout>
</LinearLayout>
here I am setting the group:-
#Override
public View getGroupView(int i, boolean b, View view, ViewGroup viewGroup) {
if (view == null) {
view = LayoutInflater.from(context).inflate(R.layout.zonal_list_group, viewGroup, false);
}
TextView textView = view.findViewById(R.id.lblListHeader);
RecyclerView recyclerView=view.findViewById(R.id.ivRecyclerView);
recyclerView.setLayoutManager(new LinearLayoutManager(context,LinearLayoutManager.HORIZONTAL,false));
ZoneNameAdapter zoneNameAdapter =new ZoneNameAdapter(zonalSnapShotResponse.keyFigureDataGroups.get(i).zones,context);
recyclerView.setAdapter(zoneNameAdapter);
ImageView imageView = view.findViewById(R.id.iv_group_indicator);
textView.setText(zonalSnapShotResponse.keyFigureDataGroups.get(i).dataGroup);
imageView.setImageResource(R.drawable.ic_arrow_drop_down_black_24dp);
if (b) {
imageView.setRotation(180f);
} else {
imageView.setRotation(0f);
}
return view;
}
getChildItemCount does not get called when I put recycler view in the header.
I have tried multiple solutions but noting worked for me.Please help
I am adding views to my adapter dynamically and when the views exceeds the screen boundaries I am unable to see the full views.
I have tried android:isScrollContainer="true" and android:scrollbars="vertical" without any luck.
public void onAddField(View v) {
final LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View rowView = inflater.inflate(R.layout.field, null);
spin = rowView.findViewById(R.id.type_spinner2);
weightLayout = rowView.findViewById(R.id.myLayout);
getdata();
spin.setAdapter(new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_spinner_dropdown_item, arrayList2));
parentLinearLayout.addView(rowView, parentLinearLayout.getChildCount() - 1);
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#E5E5E5"
android:orientation="vertical"
android:scrollbars="vertical"
android:isScrollContainer="true">
Try to use this:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="50dp"
android:text="TextView" />
</LinearLayout>
</ScrollView>
</LinearLayout>
This way your ScrollView will expand with your LinerLayout.
Recycler View is only occupying 1st half of the screen no matter what I do.
Can anyone suggest how to make Recyclerview occupy full width of the screen?
This is what it displays me in Android Studio
But this is the actual output on a device. It's all wrapped to the left side of the device.
activity.java
public class RecordLogs extends AppCompatActivity {
private RecyclerView recyclerView;
private RecordsAdapter adapter;
private List<Record> recordList;
private ProgressBar progressBar;
private FirebaseFirestore db;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_record_logs);
progressBar = findViewById(R.id.progressbar);
recyclerView = findViewById(R.id.recyclerview);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager((this)));
recordList = new ArrayList<>();
adapter = new RecordsAdapter(this, recordList);
recyclerView.setAdapter(adapter);
db = FirebaseFirestore.getInstance();
activity.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".RecordLogs">
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
<ProgressBar
android:id="#+id/progressbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true" />
</RelativeLayout>
row.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:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:orientation="vertical">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:orientation="horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/date"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#000"
android:textSize="15sp"
tools:text="26/7/2018" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Date"
android:textSize="10sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/qty"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#000"
android:textSize="15sp"
tools:text="5" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Qty. L"
android:textSize="10sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/rate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#000"
android:textSize="15sp"
tools:text="25" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Rate ₹"
android:textSize="10sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/total"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#000"
android:textSize="15sp"
tools:text="125" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Total ₹"
android:textSize="10sp" />
</LinearLayout>
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
adapter.java
public class RecordsAdapter extends RecyclerView.Adapter<RecordsAdapter.RecordViewHolder> {
private Context mCtx;
private List<Record> recordList;
public RecordsAdapter(Context mCtx, List<Record> recordList) {
this.mCtx = mCtx;
this.recordList = recordList;
}
#NonNull
#Override
public RecordViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(mCtx);
View view = inflater.inflate(R.layout.record_logs_card, null);
return new RecordViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull RecordViewHolder holder, int position) {
Record record = recordList.get(position);
holder.date.setText(record.getDate());
holder.qty.setText(String.valueOf(record.getQty()));
holder.rate.setText(String.valueOf(record.getRate()));
holder.total.setText(String.valueOf(record.getTotal()));
}
#Override
public int getItemCount() {
return recordList.size();
}
class RecordViewHolder extends RecyclerView.ViewHolder {
TextView date, qty, rate, total;
public RecordViewHolder(View itemView) {
super(itemView);
date = itemView.findViewById(R.id.date);
qty = itemView.findViewById(R.id.qty);
rate = itemView.findViewById(R.id.rate);
total = itemView.findViewById(R.id.total);
}
}
}
I found it:
All I had to change the following line of code in my custom adapter as follows:
View view = inflater.inflate(R.layout.record_logs_card, null);
to
View view = inflater.inflate(R.layout.record_logs_card, parent, false);`
My button component takes space of my custom view class,if i put more it takes up more space,any reason why is that
My oncreate method :
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_control);
MyCustomPanel view = new MyCustomPanel(this);
DisplayMetrics metrics;
metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int height = getDPI(500, metrics);
int width = getDPI(800,metrics);
layout = (LinearLayout) findViewById(R.id.r2) ;
layout1 = (LinearLayout) findViewById(R.id.l2);
ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(width,
height);
layout.addView(view,params);
}
This is my xml code :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/r2"
android:gravity="bottom|start"
android:layout_gravity="bottom|start"
tools:context="company.ciso.com.wheelchair.Control">
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:gravity="top|end"
android:layout_gravity="top|end"
android:id="#+id/l2"
>
<Button
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/b1"
android:text="S1" />
</LinearLayout>
</LinearLayout>
these are the screen shots
Additionally is there anyway to set gravity of my custom view.??
Update your layout with this code.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/l2"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_gravity="top|end"
android:gravity="top|end"
android:orientation="horizontal">
<Button
android:id="#+id/b1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="S1" />
</LinearLayout>
<LinearLayout
android:id="#+id/r2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:orientation="horizontal"></LinearLayout>
</RelativeLayout>
Good day!
I have tried a lot of other posts on stackoverflow but it didn't work for me,
maybe its because I'm new to Android Development.
My problem is as follow:
XML Layout:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/item_detail_container"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center_horizontal"
tools:context=".ItemDetailActivity"
tools:ignore="MergeRootFrame" >
<TextView
android:layout_width="match_parent"
android:layout_height="89dp"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Medium Text"
android:id="#+id/txtDetails"
android:layout_gravity="center_horizontal|top"
android:padding="5dp" />
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="369dp"
android:layout_gravity="center_horizontal|bottom" />
</FrameLayout>
Preview in Android Studio:
inside the onCreateView:
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) { }
Binding the listview:
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View rootView = inflater.inflate(R.layout.fragment_item_detail, container, false);
List<Events> list = Events.getEvents();
int max = list.size();
String[] Values = new String[max];
for (int i = 0; i < max; i++) {
Events e = list.get(i);
Values[i] = e.getNaam();
}
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(
rootView.getContext(),
android.R.layout.simple_list_item_1, Values);
listView.setAdapter(arrayAdapter);
return rootview;
}
Another point is i can't click a list item wich is strange !
Any ideas or tips?
what do i wrong?
Kind Regards,
Stefan
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/item_detail_container"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center_horizontal"
tools:context=".ItemDetailActivity"
tools:ignore="MergeRootFrame" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Medium Text"
android:id="#+id/txtDetails"
android:layout_gravity="center_horizontal|top"
android:padding="5dp" />
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|bottom" />
</FrameLayout>
Try something like the following.
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/item_detail_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center_horizontal"
tools:context=".ItemDetailActivity"
tools:ignore="MergeRootFrame" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/linearLayout">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Medium Text"
android:id="#+id/txtDetails"
android:layout_gravity="center_horizontal|top"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:paddingTop="10dp"
android:paddingBottom="10dp" />
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
</FrameLayout>
<LinearLayout>
<ScrollView>
<ListView ...>
</listView>
</ScrollView>
</LinearLayout>
You need to add a LinearLayout around the scrollview, that way the scrollview knows inside what it should scroll. If this doesn't work, replace the ListView with another LinearLayout and add your items to the LinearLayout. I'm not sure if a View is capable of scrolling at all. Try first option first, otherwise try the latter. I know the latter will work for sure since I used the exact same design myself in an app I'm developing.
As already mentioned in the comment, you have to add a ScrollView around your ListView, e.g.:
<ScrollView>
<ListView ....>
</ListView>
</ScrollView>