My app is barcodeReader which user read to barcodeID set it Textview and he can enter the number of product in editText.I implement in listview which include textview and editText. When user scan to barcodeNumber, i set to it on textView and but i want after set to text automatically focus the edit text in order .How can i do that?
Edit!!
I already add to request focus on but always focus on 1. editText and when 2. Barcode scanned 1.editText value again take "0";
This is my listView;
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/ID"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="3"
android:ellipsize="end"
android:padding="5dp"
android:singleLine="true" />
<EditText
android:id="#+id/Quantity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ellipsize="end"
android:padding="5dp"
android:singleLine="true"
android:inputType="number">
<requestFocus />
</EditText>
</LinearLayout>
This is my adapter;
public class ListViewAdapter extends BaseAdapter {
public ArrayList<Model> productList;
Activity activity;
public ListViewAdapter(Activity activity, ArrayList<Model> productList) {
super();
this.activity = activity;
this.productList = productList;
}
#Override
public int getCount() {
return productList.size();
}
#Override
public Object getItem(int position) {
return productList.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
private class ViewHolder {
TextView ID;
EditText Quantity;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
LayoutInflater inflater = activity.getLayoutInflater();
if (convertView == null) {
convertView = inflater.inflate(R.layout.listview_row, null);
holder = new ViewHolder();
holder.ID = (TextView) convertView.findViewById(R.id.ID);
holder.Quantity = (EditText) convertView.findViewById(R.id.Quantity);;
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
Model item = productList.get(position);
holder.ID.setText(item.getID().toString());
holder.Quantity(String.valueOf(item.getQuantity()));
return convertView;
}
}
And here is the Activity;
public class BarcodeReaderActivity extends AppCompatActivity {
Button btnBarcodeReader;
EditText Quantity;
private ArrayList<Model> mlist;
Model item;
ListViewAdapter adapter;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_barcodereader);
mlist= new ArrayList<Model>();
ListView lview = (ListView) findViewById(R.id.listview);
adapter = new ListViewAdapter(this, mlist);
QuantityRowID = findViewById(R.id.Quantity);
lview.setAdapter(adapter);
btnBarcodeReader = (Button)findViewById(R.id.btnBarcodeReader);
adapter.notifyDataSetChanged();
final Activity activity = this;
btnBarcodeReader.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
IntentIntegrator integrator = new IntentIntegrator(activity);
integrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES);
integrator.setPrompt("Scan");
integrator.setCameraId(0);
integrator.setBeepEnabled(false);
integrator.setBarcodeImageEnabled(false);
integrator.initiateScan();
}
});
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
if(result != null) {
if(result.getContents() == null) {
Log.d("MainActivity", "Cancelled scan");
Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show();
} else {
Log.d("MainActivity", "Scanned");
//Toast.makeText(this, "Scanned: " + result.getContents(), Toast.LENGTH_LONG).show();
populateList(result.getContents());
}
} else {
// This is important, otherwise the result will not be passed to the fragment
super.onActivityResult(requestCode, resultCode, data);
QuantityRowID.requestFocus();
int val = Integer.parseInt( QuantityRowID.getText().toString() );
item.Quantity=val;
QuantityRowID.setText(val);
adapter.notifyDataSetChanged();
}
}
public void populateList(String ID){
item = new Model(ID,0);
mlist.add(item);
adapter.notifyDataSetChanged();
}
}
Just simply set request focus on your EditText after setting all view like
//your other view like textview and imageview if you have
Quantity.requestFocus();
Try this code..
edittextbox.requestFocus();
and xml code..
<EditText ...>
<requestFocus />
</EditText>
In your Adapter getView() method write this
holder.ID.addTextChangedListener(new TextWatcher() { #Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
holder.Quantity.requestFocus();
}
});
This is a workaround, it will forcefully show the keyboard to targeted editText.
InputMethodManager keyboard = (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE);
keyboard.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);
Try this:
public void populateList(String ID){
item = new Model(ID,0);
mlist.add(item);
adapter.notifyDataSetChanged();
ListView listView = (ListView) findViewById(R.id.listview);
listView.smoothScrollToPosition(mlist.size() - 1);
LinearLayout childView = (LinearLayout)listView.getChildAt(listView.getLastVisiblePosition() - listView.getFirstVisiblePosition());
EditText quantity = (EditText)childView.findViewById(R.id.Quantity);
quantity.requestFocus();
}
Hope it helps!!
Related
I have an activity that retrieves data from a database that contains information (name, capital, population, flag image) for many countries. The main layout has an EditText to take the capital name as the input and a ListView. On launching the activity, all the countries are retrieved and shown briefly in the ListView. Then on typing in the EditText I want the ListView to show the countries with the matching capital name. But what I see is a blank ListView. Besides if the EditText is empty, I want the ListView to show all the countries as it showed in the beginning.
The main layout file is as below:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/parentLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF"
android:orientation="vertical" >
<com.google.android.gms.ads.AdView
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:id="#+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
ads:adSize="SMART_BANNER"
ads:adUnitId="#string/banner_ad_id"
android:visibility="gone" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/adView"
android:layout_marginBottom="10dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="5dp" >
<EditText
android:id="#+id/search_input_capital"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text"
android:layout_alignParentTop="true"
android:visibility="visible" >
<requestFocus />
</EditText>
<ListView
android:id="#+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:cacheColorHint="#00000000"
android:divider="#android:color/transparent"
android:drawSelectorOnTop="false"
android:layout_below="#id/search_input_capital">
</ListView>
</RelativeLayout>
</RelativeLayout>
And the code for the activity ( CapitalActivity.java ) is:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_capital);
private ArrayList<Country> items;
private ArrayList<Country> items_all;
private ArrayList<Country> items_new;
private EfficientAdapter adapter;
private ListView listView;
EditText searchInput=(EditText)findViewById(R.id.search_input_capital);
items = new ArrayList<Country>();
items_new = new ArrayList<Country>();
listView = (ListView) findViewById(R.id.listView);
listView.setDividerHeight(10);
adapter = new EfficientAdapter(CapitalActivity.this);
listView.setAdapter(adapter);
setListItems("");
searchInput.addTextChangedListener(new TextWatcher() {
#Override
public void afterTextChanged(Editable s) {
}
#Override
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {
String searchCapital = new String(s.toString()).trim();
items_new.clear();
for(Country myCountry : items_all) {
if( myCountry.getCapital() != null &&
myCountry.getCapital().trim().toLowerCase().contains(searchCapital)) {
items_new.add(myCountry);
}
}
items.clear();
items = (ArrayList<Country>) items_new.clone();
if(searchCapital.trim().isEmpty()){
items = items_all;
}
adapter.notifyDataSetChanged();
}
});
private void setListItems(String searchKey) {
items_all= DatabaseAccessor.getCountryList(CapitalActivity.this, type, typeValue, searchKey);
items=items_all;
adapter.notifyDataSetChanged();
}
Only the necessary code segment has been shown above. What should I do to achieve the target ?
EDIT1: I mostly omitted the EfficientAdapter implementation part in the code pasted above. However I am pasting that code too this time :
public class EfficientAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private Context context;
public EfficientAdapter(Context context) {
mInflater = LayoutInflater.from(context);
this.context = context;
}
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.country_container, null);
holder = new ViewHolder();
holder.nameView = (TextView) convertView.findViewById(R.id.nameView);
holder.continentView = (TextView) convertView.findViewById(R.id.continentView);
holder.imageView = (ImageView) convertView.findViewById(R.id.imageView);
holder.detailsView = (TextView) convertView.findViewById(R.id.detailsView);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
OnClickListener ocl = new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(CapitalActivity.this, CountryLearningActivity.class);
intent.putExtra(Constants.KEY_COUNTRY, items);
intent.putExtra(Constants.KEY_INDEX, position);
startActivity(intent);
}
};
Country item = items.get(position);
holder.nameView.setText(item.getCountry());
if (type.equalsIgnoreCase(filters[0]) || type.equalsIgnoreCase(filters[1])
|| type.equalsIgnoreCase(filters[2])) {
holder.continentView.setText(item.getContinent());
} else if (type.equalsIgnoreCase(filters[3])) {
holder.continentView.setText(Html
.fromHtml("Area: " + formatter.format(Double.parseDouble(item.getArea())) + " km<sup>2</sup>"));
} else if (type.equalsIgnoreCase(filters[4])) {
holder.continentView.setText("Population : " + item.getPopulation());
}
holder.imageView.setImageResource(Utils.getResID(CapitalActivity.this, item.getFlag()));
holder.detailsView.setOnClickListener(ocl);
convertView.setOnClickListener(ocl);
return convertView;
}
class ViewHolder {
TextView nameView;
ImageView imageView;
TextView continentView;
TextView detailsView;
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public int getCount() {
return items.size();
}
#Override
public Object getItem(int position) {
return items.get(position);
}
}
just open teh same page from your current page for the below code
enter cod protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_capital);
private ArrayList<Country> items;
private ArrayList<Country> items_all;
private ArrayList<Country> items_new;
private EfficientAdapter adapter;
private ListView listView;
EditText searchInput=(EditText)findViewById(R.id.search_input_capital);
items = new ArrayList<Country>();
items_new = new ArrayList<Country>();
listView = (ListView) findViewById(R.id.listView);
listView.setDividerHeight(10);
adapter = new EfficientAdapter(CapitalActivity.this);
listView.setAdapter(adapter);
setListItems("");
searchInput.addTextChangedListener(new TextWatcher() {
#Override
public void afterTextChanged(Editable s) {
}
#Override
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {
String searchCapital = new String(s.toString()).trim();
items_new.clear();
for(Country myCountry : items_all) {
if( myCountry.getCapital() != null &&
myCountry.getCapital().trim().toLowerCase().contains(searchCapital)) {
items_new.add(myCountry);
}
}
items.clear();
items = (ArrayList<Country>) items_new.clone();
if(searchCapital.trim().isEmpty()){
items = items_all;
}
adapter.notifyDataSetChanged();
}
});
private void setListItems(String searchKey) {
items_all= DatabaseAccessor.getCountryList(CapitalActivity.this, type, typeValue, searchKey);
items=items_all;
adapter.notifyDataSetChanged();
}e here
I implemented a simple listview with an option to select each time only one item from it, this functionality is working properly.
Also I have a button for sorting the records in Asc or Desc order, when I am selecting a record and after that I am sorting the records the selector of the old record remains in the same old position, even when the selected position is updated different position.
MainActivity:
public class MainActivity extends Activity
{
private ListView _listView;
private PersonAdapter _adapter;
private Button _sortBtn;
private List<Person> _data;
private int _sort;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
_listView = (ListView) findViewById(R.id.list);
_sortBtn = (Button) findViewById(R.id.sort_list_btn);
_sort = 1;
_data = new ArrayList<Person>();
_data.add(new Person("abc", "defg", 1));
_data.add(new Person("aaa", "defg", 12));
_data.add(new Person("ccc", "defg", 13));
_data.add(new Person("bb", "defg", 14));
_data.add(new Person("aa", "defg", 144));
_data.add(new Person("fff", "defg", 199));
_adapter = new PersonAdapter(this, _data);
_listView.setAdapter(_adapter);
_sortBtn.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
Comparator<Person> sortById = Person.getComperatorByFirstName(_sort);
Collections.sort(_data, sortById);
_adapter.setData(_data);
_sort = -_sort;
}
});
}
public static class Person
{
public String _fName;
public String _lName;
public int _age;
public boolean _selected;
public Person(String fName, String lName, int age)
{
_fName = fName;
_lName = lName;
_age = age;
}
public static Comparator<Person> getComperatorByFirstName(final int ascendingFlag)
{
return new Comparator<Person>()
{
#Override
public int compare(Person patient1, Person patient2)
{
return patient1._fName.compareTo(patient2._fName) * ascendingFlag;
}
};
}
}
}
listView adapter
public class PersonAdapter extends BaseAdapter
{
private Context _con;
private List<Person> _data;
public PersonAdapter(Context context, List<Person> data)
{
_con = context;
_data = data;
}
#Override
public int getCount()
{
// TODO Auto-generated method stub
return _data.size();
}
#Override
public Person getItem(int position)
{
return _data.get(position);
}
#Override
public long getItemId(int position)
{
// TODO Auto-generated method stub
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent)
{
Holder h = null;
if (convertView == null)
{
h = new Holder();
convertView = LayoutInflater.from(_con).inflate(R.layout.item_layout, parent, false);
h._backgroundItem = (LinearLayout) convertView.findViewById(R.id.item_layout);
h._fName = (TextView) convertView.findViewById(R.id.f_name);
h._lName = (TextView) convertView.findViewById(R.id.l_name);
h._age = (TextView) convertView.findViewById(R.id.age);
convertView.setTag(h);
}
else
{
h = (Holder) convertView.getTag();
}
Person p = getItem(position);
h._fName.setText(p._fName);
h._lName.setText(p._lName);
h._age.setText(String.valueOf(p._age));
h._backgroundItem.setActivated(p._selected);
return convertView;
}
public void setData(List<Person> data)
{
_data = data;
notifyDataSetChanged();
}
private static class Holder
{
public LinearLayout _backgroundItem;
public TextView _fName;
public TextView _lName;
public TextView _age;
}
}
item layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/item_layout"
android:layout_width="match_parent"
android:layout_height="48dp"
android:orientation="horizontal"
android:background="#drawable/list_selector"
android:weightSum="3" >
<TextView
android:id="#+id/f_name"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1" />
<TextView
android:id="#+id/l_name"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1" />
<TextView
android:id="#+id/age"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1" />
</LinearLayout>
I tried already to use clearChoices but after sorting I do not see the selector at all, also I tried to change the choise mode from single mode to none and then again single but without any success.
It is because you are switching the contents of the items inside the list item, but the click is bound to the position withing the ListView, therefore it doesn't "update" to the new position of the item.
I suggest you to programatically click on the new item when you finish the sorting.
Get the ID of the clicked item
public int getItemPosition(long id)
{
for (int position=0; position<mList.size(); position++)
if (mList.get(position).getId() == id)
return position;
return 0;
}
then after the sorting do the click
mList.performItemClick(
mList.getAdapter().getView(mActivePosition, null, null),
mActivePosition,
mList.getAdapter().getItemId(mActivePosition));
hope it helps!
I suggest to store the id of the selected item when it is selected, and after order the dataset, search for that id and re-select it.
I am trying to develop an android mobile application whereby i am required to display part of a listviews which has at least 100 items.
Now i,being the admin of a college,i has listed 100 subjects to be taught.(all to be listed in a listview.All of the subjects have a point and in order for a strudent to apply for this course he/she need to have exact of higher points.An indicative sample is below:
English:24
Spanish:16
MAths:28
Science:26
French:16
Management:22
Law:30
Asian Language:10
Now the student needs to enter his/her point and based(EXACT OR LOWER POINT)on that, he/she get the list of subjects he/she is eligible to apply for.
E.g Enter your points:24
the output in the listview should give the following:
French:16
Management:22
English:24
Asian Language:10
I tried this but am stuck and could not complete the codes:
Course.java
public class Course {
private String name;
private int points;
public Course(String name, int points) {
this.name = name;
this.points = points;
}
public String getName() {
return name;
}
public int getPoints() {
return points;
}
#Override
public String toString() {
return getName();
}
}
Course[] courses = new Course[]{
new Course("Medicine", 30),
new Course("Physics", 28),
new Course("Math", 24),
new Course("English", 20)
};
Button searchButton = (Button) findViewById(R.id.btn_search);
searchButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
List<Course> courseList = new ArrayList<Course>(Arrays.asList(courses));
// initialize the adapter with courseList... //
// this code inside the Button's onClick
int points = Integer.parseInt(editText.getText().toString());
for (Course c : courses) {
if (c.getPoints() <= points) {
adapter.add(c);
}
}
course.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<EditText
android:layout_width="0dp"
android:layout_weight="1"
android:maxLines="1"
android:inputType="number"
android:layout_height="wrap_content"
android:hint="Enter your points:"
android:id="#+id/editText"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Search"
android:id="#+id/btn_search"/>
</LinearLayout>
<ListView
android:id="#+id/courseNames"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
My solution as below -
MainActivity
public class MainActivity extends AppCompatActivity {
ListView myList;
EditText edtSearch;
Button btnSearch;
listAdapter adapter;
ArrayList<Course> alSearchCourses;
Course[] courses;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myList = (ListView) findViewById(R.id.myList);
edtSearch = (EditText) findViewById(R.id.edtSearch);
btnSearch = (Button) findViewById(R.id.btnSearch);
courses = new Course[]{
new Course("Medicine", 30),
new Course("Physics", 28),
new Course("Math", 24),
new Course("English", 20)
};
adapter = new listAdapter(this, courses);
myList.setAdapter(adapter);
edtSearch.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (count == 0) {
adapter = new listAdapter(MainActivity.this, courses);
myList.setAdapter(adapter);
}
}
#Override
public void afterTextChanged(Editable s) {
}
});
btnSearch.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
alSearchCourses = new ArrayList<>();
int points = Integer.parseInt(edtSearch.getText().toString());
for (int i = 0; i < courses.length; i++) {
Course c2 = courses[i];
if (c2.getPoints() <= points) {
alSearchCourses.add(c2);
}
}
Course searchCourses [] = new Course[alSearchCourses.size()];
searchCourses = alSearchCourses.toArray(searchCourses);
adapter = new listAdapter(MainActivity.this, searchCourses);
myList.setAdapter(adapter);
}
});
}
}
listAdapter
public class listAdapter extends BaseAdapter {
Context context;
Course[] courses;
LayoutInflater inflater;
public listAdapter(Context context, Course[] courses) {
this.context = context;
this.courses = courses;
inflater = LayoutInflater.from(context);
}
#Override
public int getCount() {
return courses.length;
}
#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) {
if(convertView == null){
convertView = inflater.inflate(R.layout.list_item_layout, null);
}
TextView txtCourse = (TextView) convertView.findViewById(R.id.txtCourse);
txtCourse.setText(courses[position].getName() + "-" + courses[position].getPoints());
return convertView;
}
}
Hope it helps :)
in my listview already 20 items and above listview there is one "ADD" button .when i am click on button then open one popup dialog.. in popup dialog there is on edittext and save and close button .. when i am write something edittext and click on save button then its not working.... i'll use custom listview with one image left side and text in center..... help me
Button add = (Button)findViewById(R.id.btn_Add);
add.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
final Dialog dialog = new Dialog(context);
dialog.setContentView(R.layout.popup);
dialog.setTitle("Add Category");
Button close = (Button)dialog.findViewById(R.id.btn_cls);
close.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
dialog.dismiss();
}
});
Button save = (Button)dialog.findViewById(R.id.btn_sv);
save.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
EditText edit = (EditText)dialog.findViewById(R.id.editText1);
list.add(edit.getText().toString());
edit.setText("");
adapter.notifyDataSetChanged();
}
});
dialog.show();
}
});
Try this way,hope this will help you to solve your problem.
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android: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=".MainActivity"
android:background="#drawable/black"
android:orientation="vertical">
<EditText
android:id="#+id/search"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#drawable/bbbb"
android:ems="10"
android:textColor="#color/White"
android:hint="Search"
android:padding="5dp"
android:textSize="20sp">
<requestFocus />
</EditText>
<ListView
android:id="#+id/listview"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:layout_marginTop="10dp"
android:dividerHeight="5dp"
android:cacheColorHint="#null"
android:listSelector="#null"
android:clipToPadding="false"
android:drawSelectorOnTop="true" />
<Button
android:id="#+id/btn_Add"
android:layout_width="match_parent"
android:layout_height="60dp"
android:background="#drawable/list_selector"
android:text="ADD Category"
android:textSize="25sp"
android:textStyle="bold" />
</LinearLayout>
listview_item.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/button_border"
android:gravity="center"
android:padding="5dp">
<ImageView
android:id="#+id/flag"
android:background="#drawable/sd"
android:layout_width="60dp"
android:layout_height="60dp"
android:adjustViewBounds="true"/>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginLeft="5dp">
<TextView
android:id="#+id/country"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:textSize="21sp"
android:textStyle="bold" />
</LinearLayout>
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/round"
android:layout_marginLeft="5dp"/>
</LinearLayout>
popup.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp">
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp">
<Button
android:id="#+id/btn_cls"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:background="#drawable/list_selector"
android:text="Close" />
<Button
android:id="#+id/btn_sv"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:background="#drawable/list_selector"
android:text="Save" />
</LinearLayout>
</LinearLayout>
MainActivity.java
public class MainActivity extends Activity {
private ListView list;
private ListViewAdapter adapter;
private EditText editsearch;
private Button add;
private String[] animal = new String[] {"COW","LION","TIGER","ELEPHANT","MONKEY","DONKEY"};
private ArrayList<String> listData;
private Dialog dialog;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
list = (ListView) findViewById(R.id.listview);
add = (Button)findViewById(R.id.btn_Add);
listData = new ArrayList<String>();
for (int i=0;i<animal.length;i++){
listData.add(animal[i]);
}
Collections.sort(listData);
add.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
addAnimal();
}
});
adapter = new ListViewAdapter(this,listData);
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this,listData.get(position),Toast.LENGTH_SHORT).show();
// if(listData.get(position).equals("COW"));
// intent = new Intent(getBaseContext(),COW.class);
//
// else if(listData.get(position).equals("LION"))
// intent = new Intent(getBaseContext(),LION.class);
//
// else if(listData.get(position).equals("TIGER"))
// intent = new Intent(getBaseContext(),TIGER.class);
//
// else if(listData.get(position).equals("MONKEY"))
// intent = new Intent(getBaseContext(),MOKEY.class);
//
// else if(listData.get(position).equals("DONKEY"))
// intent = new Intent(getBaseContext(),DONKEY.class);
}
});
editsearch = (EditText) findViewById(R.id.search);
editsearch.addTextChangedListener(new TextWatcher() {
#Override
public void afterTextChanged(Editable arg0) {
String text = editsearch.getText().toString();
adapter.filter(text);
}
#Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
}
#Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2,int arg3) {
}
});
}
public void addAnimal(){
dialog = new Dialog(this);
dialog.setContentView(R.layout.popup);
dialog.setTitle("Add Animal");
final EditText edit = (EditText)dialog.findViewById(R.id.editText1);
Button close = (Button)dialog.findViewById(R.id.btn_cls);
close.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();
}
});
Button save = (Button)dialog.findViewById(R.id.btn_sv);
save.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(edit.getText().toString().trim().length()>0){
listData.add(edit.getText().toString());
Collections.sort(listData);
adapter = new ListViewAdapter(MainActivity.this,listData);
list.setAdapter(adapter);
dialog.dismiss();
}else{
edit.setError("Value Required");
}
}
});
dialog.show();
}
class ListViewAdapter extends BaseAdapter {
private Context context;
private ArrayList<String> data;
private ArrayList<String> filterData;
public ListViewAdapter(Context context,ArrayList<String> data) {
this.context = context;
this.data = data;
filterData =new ArrayList<String>();
filterData.addAll(this.data);
}
public class ViewHolder {
TextView country;
}
#Override
public int getCount() {
return filterData.size();
}
#Override
public Object getItem(int position) {
return filterData.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
public View getView(final int position, View view, ViewGroup parent) {
final ViewHolder holder;
if (view == null) {
holder = new ViewHolder();
view = LayoutInflater.from(context).inflate(R.layout.listview_item, null);
holder.country = (TextView) view.findViewById(R.id.country);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
holder.country.setText(filterData.get(position));
return view;
}
public void filter(String charText) {
filterData.clear();
if (charText.length() == 0) {
filterData.addAll(data);
}else{
for (String animal : data){
if (animal.toLowerCase().contains(charText.toLowerCase())){
filterData.add(animal);
}
}
}
notifyDataSetChanged();
}
}
}
i will use like that..
public class list extends Activity {
private ListView list;
private Button add ;
private Dialog dialog;
private ListViewAdapter adapter;
private ArrayList<String> listData;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_item);
list = (ListView)findViewById(R.id.listview1);
add = (Button)findViewById(R.id.btn_Addd);
listData = new ArrayList<String>();
add.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
AddSMS();
}
});
list.setAdapter(adapter);
}
public void AddSMS(){
dialog = new Dialog(this);
dialog.setContentView(R.layout.popup1);
dialog.setTitle("Add Your SMS");
final EditText et = (EditText)dialog.findViewById(R.id.editText11);
Button close = (Button)dialog.findViewById(R.id.btn_clss);
close.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();
}
});
Button save = (Button)dialog.findViewById(R.id.btn_svv);
save.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (et.getText().toString().trim().length()>0){
listData.add(et.getText().toString());
adapter = new ListViewAdapter(list.this, listData);
list.setAdapter(adapter);
dialog.dismiss();
}else {
et.setError("Value Required");
}
}
});
dialog.show();
}
class ListViewAdapter extends BaseAdapter {
private Context context;
private ArrayList<String> data;
private ArrayList<String> filterData;
public ListViewAdapter(Context context,ArrayList<String> data) {
this.context = context;
this.data = data;
filterData =new ArrayList<String>();
filterData.addAll(this.data);
}
public class ViewHolder {
TextView txttt;
}
#Override
public int getCount() {
return filterData.size();
}
#Override
public Object getItem(int position) {
return filterData.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
public View getView(final int position, View view, ViewGroup parent) {
final ViewHolder holder;
if (view == null) {
holder = new ViewHolder();
view = LayoutInflater.from(context).inflate(R.layout.list_double, null);
holder.txttt = (TextView) view.findViewById(R.id.txttt);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
holder.txttt.setText(filterData.get(position));
return view;
}
public void filter(String charText) {
filterData.clear();
if (charText.length() == 0) {
filterData.addAll(data);
}else{
for (String Detail : data){
if (Detail.toLowerCase().contains(charText.toLowerCase())){
filterData.add(Detail);
}
}
}
notifyDataSetChanged();
}
}
}
instead of add to list add the item in adapter and then call notifyDataSetChanged
i wanted to add a search function to my customize list view. i actually search through internet for few hours, but i unable to follow all those complicated tutorial or demo, so i decided to post my problem here. Hope somebody can actually help me to solve this. here is my code
ListView lv;
EditText inputSearch;
CustomListView testingAdapter;
//at oncreate method
lv = (ListView) findViewById(R.id.lvEditSavingList);
inputSearch = (EditText) findViewById(R.id.inputSearch);
loadListViewData();
private void loadListViewData() {
// TODO Auto-generated method stub
UnderControlDb db = new UnderControlDb(getApplicationContext());
String[] info = db.MySavingShowData();
int counter = info.length;
Integer[] imageID = new Integer[counter];
for(int i=0;i<counter;i++){
imageID[i] = R.drawable.edit_notes_list;
}
testingAdapter = new CustomListView(MySaving.this, info, imageID);
lv.setAdapter(testingAdapter);
}
then this is my customize class
public class CustomListView extends ArrayAdapter<String>{
private final Activity context;
private final String[] data;
private final Integer[] imageId;
public CustomListView(Activity context,String[] data, Integer[] imageId) {
super(context, R.layout.my_saving_list, data);
this.context = context;
this.data = data;
this.imageId = imageId;
}
#Override
public View getView(int position, View view, ViewGroup parent) {
LayoutInflater inflater = context.getLayoutInflater();
View rowView= inflater.inflate(R.layout.my_saving_list, null, true);
TextView txtTitle = (TextView) rowView.findViewById(R.id.tvSavingListView);
ImageView imageView = (ImageView) rowView.findViewById(R.id.imgS);
txtTitle.setText(data[position]);
imageView.setImageResource(imageId[position]);
return rowView;
}
}
and my xml code
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TableRow>
<TextView
android:id="#+id/tvSavingListView"
android:layout_width="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="5dp"
android:textSize="16sp"
android:layout_height="30dp" />
<ImageView
android:id="#+id/imgS"
android:layout_width="25dp"
android:layout_height="25dp"/>
</TableRow>
</TableLayout>
I've wrote a small sample in order to show you how you can search data from your listView.
Find below the code, and do not hesitate to ask me any question for more clarification.
public class TestSearch extends Activity {
ListView lv;
EditText inputSearch;
CustomListView testingAdapter;
public class listContent{
public String info;
public int imageInfo;
public listContent(String info, int imageInfo) {
this.info = info;
this.imageInfo = imageInfo;
}
public String getInfo() {
return info;
}
public void setInfo(String info) {
this.info = info;
}
public int getImageInfo() {
return imageInfo;
}
public void setImageInfo(int imageInfo) {
this.imageInfo = imageInfo;
}
}
ArrayList<listContent> itemsContent;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test_search);
itemsContent = new ArrayList<listContent>();
CustomListView testingAdapter;
lv = (ListView) findViewById(R.id.lvEditSavingList);
inputSearch = (EditText) findViewById(R.id.inputSearch);
inputSearch.addTextChangedListener(textWatcher);
loadListViewData();
}
private TextWatcher textWatcher = new TextWatcher() {
#Override
public void afterTextChanged(Editable s) {
String text = inputSearch.getText().toString().toLowerCase(Locale.getDefault());
testingAdapter.filter(text);
}
#Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
}
#Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
}
};
private void loadListViewData() {
// TODO Auto-generated method stub
itemsContent.add(new listContent("text", R.drawable.ic_launcher));
itemsContent.add(new listContent("hello", R.drawable.ic_launcher));
itemsContent.add(new listContent("dear", R.drawable.ic_launcher));
itemsContent.add(new listContent("test", R.drawable.ic_launcher));
itemsContent.add(new listContent("lol", R.drawable.ic_launcher));
testingAdapter = new CustomListView(TestSearch.this, itemsContent);
lv.setAdapter(testingAdapter);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.test_search, menu);
return true;
}
public class CustomListView extends BaseAdapter{
private final Context mContext;
private ArrayList<listContent> items;
ArrayList<listContent> filtereditems;
public CustomListView(Context context, ArrayList<listContent> items) {
this.mContext= context;
this.items = items;
this.filtereditems = new ArrayList<listContent>();
this.filtereditems.addAll(items);
}
#Override
public View getView(int position, View view, ViewGroup parent) {
LayoutInflater inflater = LayoutInflater.from(mContext);
View rowView= inflater.inflate(R.layout.my_saving_list, null, true);
TextView txtTitle = (TextView) rowView.findViewById(R.id.tvSavingListView);
ImageView imageView = (ImageView) rowView.findViewById(R.id.imgS);
txtTitle.setText(items.get(position).getInfo());
imageView.setImageResource(items.get(position).getImageInfo());
return rowView;
}
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
items.clear();
if (charText.length() == 0) {
items.addAll(filtereditems);
}
else
{
for (listContent wp : filtereditems)
{
if(wp.getInfo().startsWith(charText))
{
items.add(wp);
}
}
}
notifyDataSetChanged();
}
#Override
public int getCount() {
return items.size();
}
#Override
public Object getItem(int arg0) {
return items.get(arg0);
}
#Override
public long getItemId(int arg0) {
return arg0;
}
}
}