I have android project where I have to change layout of last exxpanded group (which will collapse) and the group which is clicked. onGroupClick method i have :
int cnt=list.getChildCount();
//set layout to all groups (for closed group)
for(int i = 0; i < cnt; i`enter code here`++){
View group = adapter.getGroupView(i, false,
null, list);
LinearLayout childLayout = (LinearLayout) group.findViewById(R.id.newsLayout); childLayout.setBackgroundResource(R.layout.group_layout_shape);
}
// set layout of clicked group
LinearLayout groupLayout = (LinearLayout) v.findViewById(R.id.newsLayout);
groupLayout.setBackgroundResource(R.layout.group_layout_opened_shape);`enter code here`
it changes layout of clicked group(which will expand), but doesn't change layout of group, that colapses :( can ayone help me
You should not use this method because it is used only for the pictures, colors, layouts to be used inflater, which has a very interesting method
inflate(R.layout.childLayout, ParentView, true);
where you put first the layer you want to inflate, the second - a parent that will contain child and the third - a boolean variable must be true to inflate held.
Example in Activity:
public class MainActivity extends ActionBarActivity {
LayoutInflater inflater;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
inflater = (LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);
RelativeLayout parentView= (RelativeLayout) findViewById(R.id.mainLayout);
View v = (View) inflater.inflate(R.layout.child_layout, parentView, true);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Related
I'm having an issue trying to build a layout where I have a CollapsingToolbar and a Scrollview
The ScrollView contains two CardViews and a RecyclerView
The CollapsingToolbar consists of an image, a title and no buttons for the moment
Activity Layout
Content Layout (The ScrollView is missing android:fillViewport="true")
With these layouts everything is alright except for the scrolling of course (the parallax doesn't work if I scroll on the cardviews which is annoying)
Here's the Adapter
public class HorariosAdapter extends RecyclerView.Adapter<HorariosAdapter.HorarioViewHolder> {
public static class HorarioViewHolder extends RecyclerView.ViewHolder {
CardView cv;
TextView horaDesde;
HorarioViewHolder(View itemView) {
super(itemView);
cv = (CardView) itemView.findViewById(R.id.cvHorario);
horaDesde = (TextView) itemView.findViewById(R.id.txtHora);
}
}
List<Horario> horarios;
HorariosAdapter(List<Horario> pHorarios){
this.horarios = pHorarios;
}
#Override
public int getItemCount() {
return horarios.size();
}
#Override
public HorarioViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.rvhorarios, viewGroup, false);
HorarioViewHolder hvh = new HorarioViewHolder(v);
return hvh;
}
#Override
public void onBindViewHolder(HorarioViewHolder horarioViewHolder, int i) {
horarioViewHolder.horaDesde.setText(horarios.get(i).getHoraDesde());
}
}
Over here we have the Activity
public class DetalleActivity extends AppCompatActivity {
final String EXTRA_ITEM = "Complejo";
private TextView txtDireccion;
private ImageView imgThumbnail;
private RecyclerView rvHorarios;
private HorariosAdapter adapter;
public DetalleActivity CustomListView = null;
private Cancha complejoSeleccionado;
private Horario horario;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
complejoSeleccionado = getIntent().getParcelableExtra(EXTRA_ITEM);
setContentView(R.layout.activity_detalle);
setToolbar(complejoSeleccionado.getComplejo().toString());
txtDireccion = (TextView) findViewById(R.id.txtDireccion);
imgThumbnail = (ImageView) findViewById(R.id.imgThumbnail);
txtDireccion.setText(complejoSeleccionado.getDireccion());
String lowerImagen = complejoSeleccionado.getImagen().toLowerCase();
int idImagen = getResources().getIdentifier(lowerImagen, "drawable", getPackageName());
imgThumbnail.setImageResource(idImagen);
rvHorarios = (RecyclerView) findViewById(R.id.rvHorarios);
rvHorarios.setHasFixedSize(true);
LinearLayoutManager llm = new LinearLayoutManager(getApplicationContext());
rvHorarios.setLayoutManager(llm);
CustomListView = this;
horario = new Horario();
horario.initializeData();
adapter = new HorariosAdapter(horario.horarios);
rvHorarios.setAdapter(adapter);
rvHorarios.setNestedScrollingEnabled(false);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_detalle, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
switch (id) {
case R.id.action_settings:
return true;
case R.id.action_search:
return true;
}
return super.onOptionsItemSelected(item);
}
private void setToolbar(String titulo)
{
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
if (complejoSeleccionado.getComplejo().toString() != null) {toolbar.setTitle(titulo);}
toolbar.inflateMenu(R.menu.menu_main);
toolbar.setNavigationIcon(R.drawable.ic_action_arrow);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent a = new Intent(getApplicationContext(), MainActivity.class);
a.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(a);
}
});
}
}
I've read about NestedScrollView but I don't think it would solve my problem
I also tried TouchHandlers but to no use
Question
How can I put all these three together and scroll them together?
EDIT 1: I know I shouldn't be using a RecyclerView inside a ScrollView, a possible solution could be to separate them in different tabs?
what you are looking for is parallax effect. This library will give you good idea about how to achieve that
I have a scroll view and it give images from database and image view in scroll view create dynamically.I want to when select one of images it display on another activity or bigger.
This is my code:
public class MainActivity extends Activity{
private DatabaseH db;
private Bitmap[] ax;
ImageView im;
int i;
String table="main";
String noeDastor="کار با فایل";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
db = new DatabaseH(this);
db.useable();
refresher();
LinearLayout yourLayout = (LinearLayout)findViewById(R.id.ll1);
for ( i = 0; i < ax.length; i++) {
im=new ImageView(getApplicationContext());
im.setImageBitmap(ax[i]);
yourLayout.addView(im,700,500);
}
OnClickListener on=new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent=new Intent();
intent.putExtra("integer", i);
intent.putExtra("table", table);
intent.putExtra("noeDastor", noeDastor);
startActivity(intent);
}
};
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean 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);
}
private void refresher(){
db.open();
int save = db.shomaresh_field(table,noeDastor);
ax = new Bitmap[save];
for (int i = 0; i <save; i++) {
ax[i] = db.retrive(table,noeDastor,i);
}
db.close();
}
Use RecyclerView with LinearLayoutManager and set orientation horizontal like this :
LinearLayoutManager layoutManager
= new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
RecyclerView rvSlide = (RecyclerView) findViewById(R.id.rvSlide);
rvSlide.setLayoutManager(layoutManager);
Use ImageView as a RecyclerView item and in adapter handle the onClickListner on ImageView then you get what you want.
In your for loop with every add view you should set imageView Id like 0,1,2,etc. as you like
imageView.setId(i);
then you get id by using
imageView.getId();
to be use and find which clicked has been performed but in your imageView.onClickListener callback
I did develop an android project which includes edittext , button and listview . I have a mainActivity which includes these views in it's layout.When user enter a text on Edittext and clikc the buttom ,text will transfer to listview.Up to here, everything is okey , I can do that.Addition to this,I did create class which is extended by ArrayAdapter because I want to optimize application.I want to test application with 1000 text etc ,thanks to this I can optimize my adapter, but I don not know how to I test it ?
public class TodoItemAdapter extends ArrayAdapter<TodoItem> {
int resource;
public TodoItemAdapter(Context context, int resource,List<TodoItem> objects) {
super(context, resource ,objects);
this.resource = resource ;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
TodoItem toDoItem = getItem(position);
String toDoTask = toDoItem.task;
String toDoDate = DateFormat.getDateInstance().format(toDoItem.enteringData );
String inflaterService = Context.LAYOUT_INFLATER_SERVICE;
LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(inflaterService);
View toDoView = inflater.inflate(this.resource,null);
TextView taskView = (TextView) toDoView.findViewById(R.id.tvTask);
TextView dateView = (TextView) toDoView.findViewById(R.id.tvDate);
taskView.setText(toDoTask);
dateView.setText(toDoDate);
return toDoView;
}
}
public class MyActivity extends Activity {
private ArrayList <TodoItem> todoItems;
private TodoItemAdapter todoArrayAdapter ;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
final EditText etTodo = (EditText) findViewById(R.id.etTodo);
Button btnAddTodo = (Button) findViewById(R.id.btnAddTodo);
ListView lvTodoItems = (ListView) findViewById(R.id.todoListView);
todoItems = new ArrayList<TodoItem>();// line1
todoArrayAdapter = new TodoItemAdapter(this,R.layout.todoitem,todoItems) ;//line2
lvTodoItems.setAdapter(todoArrayAdapter); //line3
//line1,line2 and line3 apply ( DataSource -> Adapter -> AdapterView ) schema.
btnAddTodo.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
todoItems.add(new TodoItem(etTodo.getText().toString()));
todoArrayAdapter.notifyDataSetChanged();
etTodo.setText("");
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.my, 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);
}
}
You can use Espresso to write Android UI tests like the following:
public void testAdapter() {
for (int i = 0; i < 1000; i++) {
onView(withId(R.id.etTodo))
.perform(typeText("Todo #" + i));
onView(withId(R.id.btnAddTodo))
.perform(click());
}
}
I made a list and now I want when the user clicks an item, it opens a new screen showing the PKMN data. Here's my code:
Kanto.class
public class Kanto extends ActionBarActivity {
//fasendu listaa = making list
ListView listView; //criandu var = making variable
String[] pokemonsKanto = {
"#1 Bulbasaur", "#2 Ivysaur", "#3 Venusaur"
}; //lista = list
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_kanto);
//continuandu a lista = the other part to the list work
listView = (ListView) findViewById(R.id.listView);
ArrayAdapter<String> array = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, pokemonsKanto);
listView.setAdapter(array);
//lista cabada = finished
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.kanto, 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();
return id == R.id.action_settings || super.onOptionsItemSelected(item);
}
}
activity_kanto.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=".Kanto">
<ListView
android:id="#+id/listView"
android:layout_width="match_parent"
android:layout_height="wrap_content"></ListView>
How can I do that? Sorry, I'm a completely newbie .
Now you just have to set an onItemClickListener to your ListView, like this:
listView.setOnItemClickListener(new AdapterView.OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
//create an Intent to your new `Activity` with PKMN data
Intent pkmnActivityIntent = new Intent(Kanto.this, YourPKMNActivity.class);
//pass your pkmn number and name (from your `String` array) in the `Intent`, so it can be shown in the new `Activity`
pkmnActivityIntent.putExtra("name",pokemonsKanto[position] );
//start your new Activity
startActivity(pkmnActivityIntent );
}
});
This listener is activated when the user clicks an item in your list. You can set it right after listview.setAdapter() method.
Edit: Do not forget to declare your new Activity on your manifest.xml file.
Then in your new Activity, just get the pkmn name by using:
String pkmnName = getIntent().getStringExtra("name");
Now you can show your pkmnName in a TextView or something.
You need to add a listener to the items of the list,for example I will give you how to show the text of the item in an alert dialog (you can put the title of the item in a string to pass it in intent rather than display it in an alert dialog) :
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
//The title of the Item is recovered in a String
String item = (String) listView.getAdapter().getItem(position);
AlertDialog.Builder adb = new AlertDialog.Builder(kanto.this);
//The title of the alert Dialog
adb.setTitle("Your Item");
//The name of the Item
adb.setMessage("You have selected : "+item);
//the OK button
adb.setPositiveButton("Ok", null);
//show the alert dialog
adb.show();
}
});
I have an activity which has a spinner to select a day and a list that should show the list items according to the item selected from the spinner.
I'm querying the sqlite database and different queries must be used for different items selected on spinner.
I'm using a simple cursor adapter.
I have set onItemSelected(AdapterView<?> parent, View view, int position, long id) for my spinner. In that I check if the selected spinner item equals to today.
If so I need to change the list that is shown.
My problem is that the list stays the same no matter what spinner item is selected. It doesn't change.
Note that my spinner and the list are on same page. Can someone please suggest a solution for this?
public class RecentJobListActivity extends Activity {
ListView listView ;
private Spinner spinner;
private TakenJobDataBaseOpenHelper jobDatabaseHelper;
private Cursor cursor;
SimpleCursorAdapter cursoradapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_recent_job_list);
addItemsOnSpinner();
//This is the database helper class
jobDatabaseHelper = new TakenJobDataBaseOpenHelper(this);
String[] fromColumns = {TakenJobDataBaseOpenHelper.TAKENJOBS_COLUMN_RequestID,TakenJobDataBaseOpenHelper.TAKENJOBS_COLUMN_Destination,TakenJobDataBaseOpenHelper.TAKENJOBS_COLUMN_CustomerName};
int[] toViews = {R.id.singleRequestID, R.id.singleDestination,R.id.singleCustomerName};
//when the page first loads the result of queru getAlljobs() will be shown.this works
cursor = jobDatabaseHelper.getAllJobs();
cursoradapter = new SimpleCursorAdapter(this,
R.layout.single_job_activity, cursor, fromColumns, toViews, 0);
listView = (ListView)findViewById(R.id.activities_list);
listView.setAdapter(cursoradapter);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.recent_job_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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void addItemsOnSpinner(){
spinner = (Spinner) findViewById(R.id.time_periods_spinner);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
R.array.time_periods_array, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
String s = parent.getItemAtPosition(position).toString();
//even the log doesn't show.
if(s.equals("Today")){
Log.d("today","today");
cursor = jobDatabaseHelper.getTodayJobs();
cursoradapter.notifyDataSetChanged();
}
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
}
Thank you!!!
Try using CursorAdapter.swapCursor(). That should work.