Develop Reference

How to change setText when i delete the data

I want to change my Button text when i delete the items
i already checked it getText, when i getText it shows that the data
already changed but when i try to setText, it's not show to me
In this case what shold i do?
This is my f_productAdapter
package com.example.together.Adapter;
import android.content.Context;
import android.media.Image;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.example.together.Model.FuneralProdcutOrder;
import com.example.together.R;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import static com.example.together.Activities.EditProfileActivity.TAG;
public class f_productAdapter extends BaseAdapter {
Button b;
LayoutInflater inflater = null;
private ArrayList<FuneralProdcutOrder> list;
public f_productAdapter(ArrayList<FuneralProdcutOrder> f_order) {
super();
list = f_order;
}
#Override
public int getCount() {
return list.size();
}
#Override
public Object getItem(int position) {
return list.get(position);
}
#Override
public long getItemId(int position) {
return list.get(position).hashCode();
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
if(convertView == null) {
inflater = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.item_funeralorder, parent, false);
}
TextView tv_name = convertView.findViewById(R.id.productnm); //상품이름
TextView tv_price = convertView.findViewById(R.id.productpri); //상품 가격
ImageView tv_img = convertView.findViewById(R.id.pro_img);
Button tv_delete = convertView.findViewById(R.id.deleteBtn);
FuneralProdcutOrder getProlist = list.get(position);
tv_name.setText(getProlist.getName());
tv_price.setText(getProlist.getPrice());
Picasso.get().load(getProlist.getImg()).fit().into(tv_img);
LayoutInflater inflaters = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View Toplayout = inflaters.inflate(R.layout.activity_goodbyepet_reservation_result, null );
//
b = Toplayout.findViewById(R.id.f_orderBtn);
TextView test = Toplayout.findViewById(R.id.toolbar_title);
Log.e("test",test.getText()+"");
// Log.e("view context", parent.getContext()+"");
// Log.e("view position", position+"");
// Log.e("view count", list.size()+"");
// Log.e("view",b.getText()+"");
// b.setText("테스트");
b.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.e("view alert" ,"확실히 버튼 객체를 찾았습니다 눌림");
}
});
tv_delete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
list.remove(position);
b.setText("Show me~~~~ u r change!!!");
notifyDataSetChanged();
Log.d(TAG, "onClick: What is you?"+list.size());
}
});
return convertView;
}
}
This is my reservationResultActivity
package com.example.together.Activities.GoodbyePet;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.support.v7.widget.Toolbar;
import com.example.together.Adapter.f_productAdapter;
import com.example.together.Model.FuneralProdcutOrder;
import com.example.together.R;
import java.lang.reflect.Array;
import java.util.ArrayList;
public class GoodbyepetReservationResultActivity extends AppCompatActivity {
// private TextView tvParent, tvChild;
Toolbar myToolbar;
ListView funeralview;
Button Btn;
private ArrayList<FuneralProdcutOrder> f_order = new ArrayList<>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_goodbyepet_reservation_result);
int total_price = 0;
//리스트뷰선언
funeralview = findViewById(R.id.funeral_order);
//예약 버튼
Btn = findViewById(R.id.f_orderBtn);
//툴바 선언
myToolbar = findViewById(R.id.my_toolbar);
setSupportActionBar(myToolbar);
//액션바 왼쪽에 버튼
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_btn_back);
getSupportActionBar().setDisplayShowTitleEnabled(false);
for (int i = 0; i < MyCategoriesExpandableListAdapter.parentItems.size(); i++ ) {
for (int j = 0; j < MyCategoriesExpandableListAdapter.childItems.get(i).size(); j++ ){
String isChildChecked = MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.IS_CHECKED);
if (isChildChecked.equalsIgnoreCase(ConstantManager.CHECK_BOX_CHECKED_TRUE)) {
// tvParent.setText(tvParent.getText() + MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_NAME));
// tvChild.setText(tvChild.getText() + MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_PRICE));
String name = MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_NAME);
String price = MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_PRICE);
String img = MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_IMAGE);
f_order.add(new FuneralProdcutOrder(name,price,img));
total_price = total_price + Integer.parseInt(price);
}
}
}
f_productAdapter orAdapter = new f_productAdapter(f_order);
// orAdapter.setHasStableId(true);
Log.e("view activiey", f_order.size()+"안녕");
funeralview.setAdapter(orAdapter);
Btn.setText(f_order.size()+"개 " + total_price+" 원 예약 신청하기");
Btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
//액션바 등록
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.alldelete_manu, menu) ;
return true ;
}
//액션바 클릭 이벤트
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// ((TextView)findViewById(R.id.textView)).setText("SEARCH") ;
return true;
case R.id.settings:
// ((TextView)findViewById(R.id.textView)).setText("ACCOUNT") ;
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
What i want to do
when i delete the button directly change buttons text also change
but setText() is not working
how to change that?
Click delete button
tv_delete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
list.remove(position);
b.setText("Show me~~~~ u r change!!!");
notifyDataSetChanged();
Log.d(TAG, "onClick: What is you?"+list.size());
}
});
What i want to change the button text
Btn.setText(f_order.size()+"개 " + total_price+" 원 예약 신청하기");
This is my XML That include button what i want to change the text
<?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="fill_parent"
tools:context=".Activities.GoodbyePet.GoodbyepetReservationResultActivity">
<android.support.v7.widget.Toolbar
android:id="#+id/my_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/mdtp_white"
android:elevation="4dp"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="예약 상세서"
android:layout_gravity="center"
android:id="#+id/toolbar_title"
android:textSize="20sp"
/>
</android.support.v7.widget.Toolbar>
<ListView
android:id="#+id/funeral_order"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.3"
android:drawSelectorOnTop="false">
</ListView>
<Button
android:id="#+id/f_orderBtn"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.8"
android:layout_margin="10dp"
android:text="바뀌어주세요"
android:background="#drawable/button_radius"
android:textSize="18dp"/>
</LinearLayout>

Create an interface class like this;
You can set many kind of information as a parameter about your deleted item and send it to your activity.
public interface ItemSelectedListener{
void onItemSelected(boolean isDeleted);
}
In your adapter initialize your interface;
private List<ItemSelectedListener> mItemSelectedSubscribers = new ArrayList<ItemSelectedListener>();
Add this method in your adapter ;
public void subscribeItemSelection(ItemSelectedListener listener) {
mItemSelectedSubscribers .add(listener);
}
Set this loop in your click events;
tv_delete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
for (ItemSelectedListener listener : mItemSelectedSubscribers ) {
listener.onItemSelected(true);
}
list.remove(position);
b.setText("Show me~~~~ u r change!!!");
notifyDataSetChanged();
Log.d(TAG, "onClick: What is you?"+list.size());
}
});
In your activity, implement your interface and you will set a implemented methods. this methods look like this;
boolean isDeleted;
#Override
public void onItemSelected(boolean isDeleted) {
this.isDeleted = isDeleted;
}
You know now item is deleted or not. When a button deleted you can change text by using your method.
if(isDeleted){
btn.setText(changeText)
}
Hope this help!

How to fetch data from a custom list view with multiple radio buttons

I have gone through a lot of links here, but yet i was not able to get my stuff working. Can you please help me fetch data from my custom list.
Details are as under :- My custom list view
<?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" >
<RadioGroup
android:id="#+id/radioGroup_option"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/tv_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:focusable="false"/>
<RadioButton
android:id="#+id/rb_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<RadioButton
android:id="#+id/rb_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</RadioGroup>
</LinearLayout>
I am populating a List through the UI the code for that is :-
package com.example.customadapter;
import java.lang.reflect.Array;
import java.util.Arrays;
import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class CustomAdapter extends ActionBarActivity {
AddDataToArray mydata;
EditText qstno,qstn,opt1,opt2;
Button btn_save,btn_display;
int questio_no;
String question,option1,option2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_custom_adapter);
mydata=AddDataToArray.getInstance();
qstno=(EditText)findViewById(R.id.edt_qstn_no);
qstn=(EditText)findViewById(R.id.edt_add_qstn);
opt1=(EditText)findViewById(R.id.edt_opt1);
opt2=(EditText)findViewById(R.id.edt_opt2);
btn_save=(Button)findViewById(R.id.btn_save);
btn_display=(Button)findViewById(R.id.btn_display);
btn_save.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
questio_no=Integer.parseInt(qstno.getText().toString());
question=qstn.getText().toString();
option1=opt1.getText().toString();
option2=opt2.getText().toString();
System.out.println("Questio added in the UI --> "+ question);
String statusReceived=mydata.AddingQuestions(questio_no, question, option1, option2);
Toast.makeText(getApplicationContext(), statusReceived, Toast.LENGTH_LONG).show();
qstn.setText("");
opt1.setText("");
opt2.setText("");
}
});
btn_display.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
for (int i=0;i<mydata.myQstnList.size();i++)
{
System.out.println("Qustion no"+mydata.myQstnList.get(i).getQstno());
System.out.println("Question -->"+mydata.myQstnList.get(i).getQstn());
//System.out.println("The First Option added was:-" + mydata.myQstnList.get(i).getOpt1());
}
Intent myIntent = new Intent(CustomAdapter.this, Mediator.class);
startActivity(myIntent);
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.custom_adapter, 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);
}
}
Finally i made an adapter from base adapter as follows:-
package com.example.customadapter;
import java.util.List;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;
public class MyAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private List<Question> mQuestion;
Context context;
public MyAdapter(Context context,List<Question> mQuestion) {
super();
this.context=context;
this.mQuestion = mQuestion;
this.mInflater = LayoutInflater.from(context);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return mQuestion.size();
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return mQuestion.get(position);
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View view;
ViewHolder holder;
if (convertView == null){
view = mInflater.inflate(R.layout.customized_view, parent,false);
holder = new ViewHolder();
holder.rg=(RadioGroup)view.findViewById(R.id.radioGroup_option);
holder.tv_qstn=(TextView)view.findViewById(R.id.tv_id);
holder.rb_opt1=(RadioButton)view.findViewById(R.id.rb_1);
holder.rb_opt2=(RadioButton)view.findViewById(R.id.rb_2);
view.setTag(mQuestion);
}else {
view = convertView;
holder = (ViewHolder)view.getTag();
}
Question qstnRef=mQuestion.get(position);
holder.tv_qstn.setText(qstnRef.getQstn());
holder.rb_opt1.setText(qstnRef.getOpt1());
holder.rb_opt2.setText(qstnRef.getOpt2());
holder.rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// TODO Auto-generated method stub
//List<Question> data =(List<Question>) group.getTag();
//Toast.makeText(context,(CharSequence) data.get(checkedId).getOpt2(),Toast.LENGTH_SHORT).show();
int childCount=group.getChildCount();
for (int i=0;i<childCount;i++){
RadioButton r_btn=(RadioButton)group.getChildAt(i);
if (r_btn.getId() == checkedId){
System.out.println(r_btn.getText().toString());
}
}
}
});
return view;
}
private class ViewHolder {
public TextView tv_qstn;
public RadioButton rb_opt1,rb_opt2;
public RadioGroup rg;
}
}
But i am trying to get this data that i enter in the UI, but I am not able to get this to work, please provide me assistance !!!!
The code in the current format is giving me runtime error :-
05-09 06:01:06.669: E/AndroidRuntime(2420):
java.lang.ClassCastException: android.widget.TextView cannot be cast
to android.widget.RadioButton
05-09 06:01:06.669: E/AndroidRuntime(2420): at
com.example.customadapter.MyAdapter$1.onCheckedChanged(MyAdapter.java:83)

group.getChildCount() returns 3 as it has 3 child. but 1 child is of TextView that's why you were getting java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.RadioButton
To avoid it do type checking using instanceof before typecasting.
do like this:
int childCount=group.getChildCount();
for (int i=0;i<childCount;i++){
if(group.getChildAt(i) instanceof RadioButton ) { // check if child is `RadioButton`
RadioButton r_btn = (RadioButton) group.getChildAt(i);
if (r_btn.getId() == checkedId) {
System.out.println(r_btn.getText().toString());
}
}
}

How to dynamically add user input into a listView within a fragment?

Im trying to add text into a listview within a fragment but i keep getting an error: cannot find symbol method setListAdapter(ArrayAdapter).
I'm using this tutorial as reference but it only shows how to do it within a activity : http://wptrafficanalyzer.in/blog/dynamically-add-items-to-listview-in-android/
Im trying to move this over to a fragment. Can anyone help please i would highly appreciate it? heres my code :
MainActivity:
import android.app.Activity;
import android.os.Bundle;
import android.view.ActionMode;
import android.view.Menu;
import android.view.MenuItem;
import com.example.fragments.DeleteDialogueFragment;
import com.example.PeopleFragment;
public class MainActivity extends Activity implements PeopleFragment.PeopleFragmentListener, DeleteDialogueFragment.DeleteDialogueListener {
private final String TAG = "MAINACTIVITY";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, new PeopleFragment())
.commit();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
//INTERFACE METHODS
public void deleteCharacter(){
PeopleFragment peopleFragment = (PeopleFragment) getFragmentManager().findFragmentById(R.id.container);
peopleFragment.deleteCharacter();
}
}
PeopleFragment :
import android.app.Activity;
import android.app.DialogFragment;
import android.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.ActionMode;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import com.example.actionbardemo.R;
import java.util.ArrayList;
import java.util.Arrays;
public class PeopleFragment extends Fragment{
private final String TAG = "PEOPLEFRAGMENT";
private PeopleFragmentListener mListener;
private ArrayAdapter<String> mPeopleAdapter;
private ActionMode mActionMode;
private int mPersonSelected = -1;
/** Items entered by the user is stored in this ArrayList variable */
private ArrayList<String> pList = new ArrayList<String>();
public interface PeopleFragmentListener {
}
public static PeopleFragment newInstance() {
PeopleFragment fragment = new PeopleFragment();
return fragment;
}
public PeopleFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ArrayList<String> people = new ArrayList<String>(Arrays.asList(getResources().getStringArray(R.array.people)));
mPeopleAdapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,people);
// Reference to the button of the layout main.xml
Button btn = (Button) getView().findViewById(R.id.btnAdd);
// Defining a click event listener for the button "Add"
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
EditText edit = (EditText) getView().findViewById(R.id.txtItem);
pList.add(edit.getText().toString());
edit.setText("");
mPeopleAdapter.notifyDataSetChanged();
}
};
// Setting the event listener for the add button
btn.setOnClickListener(listener);
// Setting the adapter to the ListView
setListAdapter(mPeopleAdapter);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
ListView peopleList = (ListView) rootView.findViewById(R.id.peopleList);
peopleList.setAdapter(mPeopleAdapter);
peopleList.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
if(mActionMode != null){
return false;
}
mPersonSelected = position;
mActionMode = getActivity().startActionMode(mActionModeCallback);
return true;
}
});
return rootView;
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mListener = (PeopleFragmentListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString() + " must implement PeopleFragmentListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
//INTERFACE METHODS
public void deleteCharacter(){
mPeopleAdapter.remove(mPeopleAdapter.getItem(mPersonSelected));
mPeopleAdapter.notifyDataSetChanged();
}
public String getToDelete(){
return mPeopleAdapter.getItem(mPersonSelected);
}
//CONTEXTUAL ACTION BAR CALLBACK
private ActionMode.Callback mActionModeCallback = new ActionMode.Callback() {
// Called when the action mode is created; startActionMode() was called
#Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
// Inflate a menu resource providing context menu items
MenuInflater inflater = mode.getMenuInflater();
inflater.inflate(R.menu.peoplemenu, menu);
return true;
}
// Called each time the action mode is shown. Always called after onCreateActionMode, but
// may be called multiple times if the mode is invalidated.
#Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return false; // Return false if nothing is done
}
// Called when the user selects a contextual menu item
#Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()) {
case R.id.peopleDelete:
Log.i(TAG,mPeopleAdapter.getItem(mPersonSelected));
DialogFragment dialog = new DeleteDialogueFragment();
Bundle args = new Bundle();
args.putString("name",mPeopleAdapter.getItem(mPersonSelected));
dialog.setArguments(args);
dialog.show(getActivity().getFragmentManager(), "DeleteDiaglogueFragment");
mode.finish();
return true;
default:
return false;
}
}
// Called when the user exits the action mode
#Override
public void onDestroyActionMode(ActionMode mode) {
mActionMode = null;
}
};
}
activity_main.xml (layout):
<FrameLayout 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=".MainActivity"
tools:ignore="MergeRootFrame" />
fragment_main.xml (layout):
<?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">
<EditText
android:id="#+id/txtItem"
android:layout_width="240dp"
android:layout_height="wrap_content"
android:inputType="text"
android:hint="#string/hintTxtItem"/>
<Button
android:id="#+id/btnAdd"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/lblBtnAdd"
android:layout_toRightOf="#id/txtItem"/>
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/peopleList"
android:layout_gravity="center_horizontal" />
</LinearLayout>
strings.xml(values):
<string name="app_name">ActionBarDemo</string>
<string name="action_settings">Settings</string>
<string name="hintTxtItem">Enter an item here ...</string>
<string name="lblBtnAdd">Add Item</string>
<string name="txtEmpty">List is empty</string>
<string name="delete_confirm">Are you sure you want to delete</string>
<string name="delete">Delete</string>
<string name="cancel">Cancel</string>
<string-array name="people">
<item>person 1</item>
<item>person 2</item>
<item>person 3</item>
<item>person 4</item>
<item>person 5</item>
<item>person 6</item>
</string-array>

Selecting and Deleting List View items dynamically through a CAB on a button click, not through long press

I have an application with a list view and a custom adapter where I add custom objects to the list view. I know how to delete objects through long-pressing one of the list items in the list, but I have a trash can action bar button and I want it so that when you click on that button, it brings up the same CAB as if you were long-pressing a list item, and I want the user to be able to select multiple list items, and then click a delete button on the CAB.
What I have tried:
package viva.inspection.com.inspectionpicker;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.SparseBooleanArray;
import android.view.ActionMode;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AbsListView;
import android.widget.Adapter;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.GregorianCalendar;
import java.util.HashSet;
import java.util.List;
import viva.inspection.com.inspectionpicker.R;
public class ListActivity extends Activity {
private static ArrayList<InspectionItem> inspections;
private static final String s = "inspection list";
public static final String PREFS_NAME = "MyPrefsFile";
ListView inspectionList;
private final int GET_VALUE=111;
private final int GET_VAL = 11;
private MyAdapter listviewadapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list);
SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
inspectionList = (ListView) findViewById(R.id.listView);
inspectionList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
inspections = new ArrayList<InspectionItem>();
inspections.add(new InspectionItem(new GregorianCalendar(7,15,14), "hi", "hi", "hi", "hi", "hi", "hi", "hi", "hi", "hi", "hi", new ArrayList<String>()));
if(getIntent().getStringExtra("NEW_VALUE") != null) {
//addItems(getIntent().getStringExtra("NEW_VALUE"));
SharedPreferences.Editor edit = settings.edit();
edit.putString("myKey", TextUtils.join(",", inspections));
edit.commit();
}
if(!(settings.getString("myKey", "hi").equals("hi"))) {
//We have saved values. Grab them.
} else {
//We have no saved values
inspections = new ArrayList<InspectionItem>();
inspections.add(new InspectionItem(new GregorianCalendar(7,15,14), "hi", "hi", "hi", "hi", "hi", "hi", "hi", "hi", "hi", "hi", new ArrayList<String>()));
}
listviewadapter = new MyAdapter(this, R.layout.row_layout,
inspections);
inspectionList.setAdapter(listviewadapter);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.list, 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();
switch(id) {
case R.id.action_settings:
return true;
case R.id.action_new:
Intent intent = new Intent(this, InitialChoose.class);
startActivity(intent);
return true;
case R.id.action_delete:
inspectionList.setOnItemSelectedListener(new ActionBarCallBack());
startActionMode(new ActionBarCallBack());
//mActionMode.finish();
return true;
}
return super.onOptionsItemSelected(item);
}
class ActionBarCallBack implements ListView.OnItemSelectedListener, ActionMode.Callback {
ActionMode activeMode;
#Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()) {
case R.id.delete:
// Calls getSelectedIds method from ListViewAdapter Class
SparseBooleanArray selected = listviewadapter
.getSelectedIds();
// Captures all selected ids with a loop
for (int i = (selected.size() - 1); i >= 0; i--) {
if (selected.valueAt(i)) {
InspectionItem selecteditem = listviewadapter
.getItem(selected.keyAt(i));
// Remove selected items following the ids
listviewadapter.remove(selecteditem);
}
}
// Close CAB
mode.finish();
return true;
default:
return false;
}
}
#Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
mode.getMenuInflater().inflate(R.menu.cab_menu, menu);
return true;
}
#Override
public void onDestroyActionMode(ActionMode mode) {
// TODO Auto-generated method stub
listviewadapter.removeSelection();
}
#Override
public boolean onPrepareActionMode(final ActionMode mode, Menu menu) {
// TODO Auto-generated method stub
return false;
}
#Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
listviewadapter.toggleSelection(i);
final int checkedCount = inspectionList.getCheckedItemCount();
// Set the CAB title according to total checked items
activeMode.setTitle(checkedCount + " Selected");
}
#Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
}
/*
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode==RESULT_OK){
if(requestCode == GET_VALUE){
if(data.getStringExtra("NEW_VALUE")!=null && data.getStringExtra("NEW_VALUE").length()>0){
addItems(data.getStringExtra("NEW_VALUE"));
SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
SharedPreferences.Editor edit = settings.edit();
edit.putString("myKey", TextUtils.join(",", inspections));
edit.commit();
}
}
}
} */
}
Basically, with this code, if I click on the trash-can action bar button, the CAB shows up, but I can't select any items on the list and proceed to delete them. Any help is greatly appreciated.

This is a tricky one. I used CheckedTextView's for multiple selections inside the list however when the list scrolls the adapter re-uses the old views and sometimes checks the wrong items. To overcome that I used an array of all the currently checked items, so the adapter can know which items should be checked.
Before going back to the original list you need to call notifyDataSetChanged(), which notifies to redrawn the visible views therefore uncheck/delete the selections (depends on what action you chose back at the CAB).
package com.example.simon.cabdelete;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.util.SparseBooleanArray;
import android.view.ActionMode;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.CheckedTextView;
import android.widget.ListView;
import java.util.ArrayList;
import java.util.List;
/**
* Created by Simon on 2014 Jul 18.
*/
public class MainActivity extends Activity {
private final static String TAG = "MainActivity";
MyAdapter mAdapter;
ListView mListView;
List<String> mListArray;
SparseBooleanArray mCheckedItems;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mListView = (ListView) findViewById(R.id.listView);
// Default list item click listener
mListView.setOnItemClickListener(new AdapterView.OnItemClickListener(){
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// Do something on normal click
}
});
mCheckedItems = new SparseBooleanArray();
int size = 20;
mListArray = new ArrayList<String>(size);
for (int i=0; i<size; i++)
mListArray.add("Item "+i);
mAdapter = new MyAdapter(this, R.layout.list_item, mListArray);
mListView.setAdapter(mAdapter);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.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();
switch (id) {
case R.id.action_settings:
break;
case R.id.action_delete:
startActionMode(new ActionBarCallBack());
break;
}
return super.onOptionsItemSelected(item);
}
public class MyAdapter extends ArrayAdapter<String> {
List<String> items;
int itemResource;
LayoutInflater inflater;
public MyAdapter(Context ctx, int resource, List<String> objects) {
super(ctx, resource, objects);
this.items = objects;
this.itemResource = resource;
this.inflater = ((MainActivity)ctx).getLayoutInflater();
}
#Override
public View getView(int pos, View convertView, ViewGroup parent) {
// (Re)Use convertView
if (convertView == null) {
convertView = inflater.inflate(itemResource, parent, false);
}
CheckedTextView checkView = (CheckedTextView) convertView;
checkView.setText(items.get(pos));
if (mCheckedItems.get(pos))
checkView.setChecked(true);
else
checkView.setChecked(false);
return convertView;
}
}
public class ActionBarCallBack implements ListView.OnItemClickListener,
ActionMode.Callback {
ActionMode actionMode;
AdapterView.OnItemClickListener previousListener;
#Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
Log.v(TAG, "Action mode started");
actionMode = mode;
mode.getMenuInflater().inflate(R.menu.cab_menu, menu);
previousListener = mListView.getOnItemClickListener();
mListView.setOnItemClickListener(this);
mCheckedItems = new SparseBooleanArray(mListView.getCount());
return true;
}
#Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return false;
}
#Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()) {
case R.id.delete:
Log.v(TAG, "Deleting "+mCheckedItems.size()+" items");
for (int i= mCheckedItems.size()-1; i>=0; i--) {
int key = mCheckedItems.keyAt(i);
Log.v(TAG, "Removing array item # " + key);
mListArray.remove(key);
}
mode.finish();
return true;
default:
return false;
}
}
#Override
public void onDestroyActionMode(ActionMode mode) {
Log.v(TAG, "Exiting action mode.");
mListView.setOnItemClickListener(previousListener);
mCheckedItems.clear();
mAdapter.notifyDataSetChanged();
}
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
CheckedTextView checkView = (CheckedTextView) view;
boolean state = checkView.isChecked();
checkView.setChecked(!state);
if (!mCheckedItems.get(position))
mCheckedItems.put(position, true);
else
mCheckedItems.delete(position);
actionMode.setTitle(mCheckedItems.size() + " Items selected");
Log.v(TAG, "Action item # " + position +
" clicked. It's state now is " + state);
}
}
}
And here are my xml files create the whole look:
res/layout/activity_main.xml:
<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:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".MainActivity">
<ListView
android:id="#+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:drawSelectorOnTop="true"/>
<!-- Note that drawSelectorOnTop is important as it lets
the CheckedTextViews to be clicked in a normal way too-->
</RelativeLayout>
res/layout/list_item.xml:
<CheckedTextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:background="#drawable/list_selector"/>
res/drawable/list_selector.xml:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#color/item_default" android:state_checked="false"/>
<item android:drawable="#color/item_checked" android:state_checked="true"/>
</selector>
res/values/colors.xml:
<resources>
<color name="item_default">#33B5E5</color>
<color name="item_checked">#0095CC</color>
</resources>

EditText inside ListView will not stay focused [duplicate]

This question already has answers here:
Focusable EditText inside ListView
(13 answers)
Closed 9 years ago.
I have an EditText inside each row of a ListView. For some reason, when I tap the EditText, it briefly gains focus but then immediately loses it.
I have tried these things:
listView.setItemsCanFocus(true);
editText.setFocusable(true);
While the EditText is (briefly) focused, the Enter key says Next and the auto-correct bar is present. When it loses focus, the soft keyboard stays up, but the Enter key becomes a Return Arrow, and the auto-correct bar disappears.

If you want list items to take focus, its pretty straight forward:
Make the listview not focusable, and say that its focus is afterDescendants which lets EditTexts and other focusable items take focus.
<ListView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:descendantFocusability="afterDescendants"
android:focusable="false" />

EditTexts within ListViews are extremely tricky. I'd suggest you avoid them like the plague if possible. When I was messing with them, this answer was helpful though. If you only have a few items you can always just use a ScrollView.

I know this question is old, but I was also fighting with EditText and ListView today. I think lose time with focus problem or updating dataset is the end of the line.
So, I created an Activity and dynamically added the controls I need. In this example I added two controls: a textview and edittext.
First I create a class to be a "container" of the controls and them I put the controls on a ScrollView.
The layout.xml file:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/llMain"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/tvHeader"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<ScrollView
android:id="#+id/svMain"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:id="#+id/llForm"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
</LinearLayout>
The "containter" class:
import android.widget.EditText;
public class RespostasArray {
private int pergunta;
private int formulario;
private int form_coord;
private int coordenada;
private int form_resposta;
private String questao;
private String resposta;
private EditText respostaEdit;
public RespostasArray() {
respostaEdit = null;
}
public int getPergunta() {
return pergunta;
}
public void setPergunta(int pergunta) {
this.pergunta = pergunta;
}
public int getFormulario() {
return formulario;
}
public void setFormulario(int formulario) {
this.formulario = formulario;
}
public int getForm_coord() {
return form_coord;
}
public void setForm_coord(int form_coord) {
this.form_coord = form_coord;
}
public int getCoordenada() {
return coordenada;
}
public void setCoordenada(int coordenada) {
this.coordenada = coordenada;
}
public int getForm_resposta() {
return form_resposta;
}
public void setForm_resposta(int form_resposta) {
this.form_resposta = form_resposta;
}
public String getQuestao() {
return questao;
}
public void setQuestao(String questao) {
this.questao = questao;
}
public String getResposta() {
return resposta;
}
public void setResposta(String resposta) {
this.resposta = resposta;
}
public EditText getRespostaEdit() {
return respostaEdit;
}
public void setRespostaEdit(EditText respostaEdit) {
this.respostaEdit = respostaEdit;
}
}
So, the main activity:
import java.util.ArrayList;
import java.util.List;
import jv.android.getpoint.R;
import jv.android.getpointlib.data.Formularios;
import jv.android.getpointlib.data.GetPointDataHelper;
import jv.android.getpointlib.data.Respostas;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.WindowManager.LayoutParams;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
public class RespostasActivity extends Activity {
private Intent intent;
private ArrayList<RespostasArray> listItems = null;
private GetPointDataHelper db = null;
private int coordenada = -1;
private int formulario = -1;
private LinearLayout llRespostas;
private TextView tvRespostasHeader;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout.xml);
llRespostas = (LinearLayout)findViewById(R.id.llRespostas);
tvHeader = (TextView)findViewById(R.id.tvHeader);
listItems = new ArrayList<RespostasArray>();
db = new GetPointDataHelper(this, false);
intent = getIntent();
if (intent != null)
{
Bundle params = intent.getExtras();
if (params != null) {
coordenada = params.getInt("coordenada");
formulario = params.getInt("formulario");
tvHeader.setText("Some header");
// Load the fields I need from SQLite. Change it to your needs.
List<Respostas> respostas = db.selectAllRespostaDaCoordenada (coordenada, formulario);
if (respostas != null && respostas.size() > 0) {
for (int i = 0; i < respostas.size(); i++) {
TextView tv = new TextView(getApplicationContext());
tv.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
tv.setText(respostas.get(i).getQuestao().trim() + (respostas.get(i).getQuestao().trim().endsWith(":") ? "" : ":"));
llRespostas.addView(tv);
EditText et = new EditText(getApplicationContext());
et.setText(respostas.get(i).getResposta().trim());
et.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
llRespostas.addView(et);
RespostasArray ra = new RespostasArray();
ra.setCoordenada(respostas.get(i).getCoordenada());
ra.setForm_coord(respostas.get(i).getForm_coord());
ra.setForm_resposta(respostas.get(i).getForm_resposta());
ra.setFormulario(respostas.get(i).getFormulario());
ra.setPergunta(respostas.get(i).getPergunta());
ra.setQuestao(respostas.get(i).getQuestao());
ra.setResposta(respostas.get(i).getResposta());
ra.setRespostaEdit(et);
listItems.add(ra);
}
}
}
}
}
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
doProcessResult();
}
return super.onKeyDown(keyCode, event);
}
private void doProcessResult() {
for (int i = 0; i < listItems.size(); i++) {
if (listItems.get(i).getForm_resposta() == 0) {
db.insertResposta(listItems.get(i).getFormulario(), listItems.get(i).getForm_coord(), listItems.get(i).getPergunta(), listItems.get(i).getRespostaEdit().getText().toString());
} else {
db.updateResposta(listItems.get(i).getForm_resposta(), listItems.get(i).getRespostaEdit().getText().toString());
}
}
}
}
I hope it helps someone.