Android :: Expanding ListView Custom Component With Button Click
Nov 5, 2010
I'm developing a small application in with a list view filled with a compound component. This component has two text view and one button inside. One of the text view is invisible and when the button is clicked it should appear. I can show the list but i can't make the textview visible when the button is clicked. Here is the xml of the component: And this is the ArrayAdapter that fills the list:
public class AddressAdapter extends ArrayAdapter { int resource;
RelativeLayout placeView;
EditText addressText;
public AddressAdapter(Context _context, int _resource, List _items) {
super(_context, _resource, _items);
resource = _resource;
} private OnClickListener buttonClick = new OnClickListener() {
public void onClick (View v) {
int i = placeView.findViewById(R.id.stub_import).getVisibility();
visibility(i);
} };
private void visibility(int i) {
// TODO Auto-generated method stub switch(i) {
case(View.GONE): { addressText.setVisibility(View.VISIBLE);
} case(View.VISIBLE): { addressText.setVisibility(View.GONE);
} } }
@Override public View getView(int position, View convertView, ViewGroup parent) {
Item item = getItem(position);
String name = item.getName();
String address = item.getAddress();
if (convertView == null) {
placeView = new RelativeLayout(getContext());
String inflater = Context.LAYOUT_INFLATER_SERVICE;
LayoutInflater vi = (LayoutInflater)getContext().getSystemService(inflater);
vi.inflate(resource, placeView, true);
} else { placeView = (RelativeLayout) convertView;
} TextView nameText = (TextView)placeView.findViewById(R.id.placeNamwView);
Button button = (Button)placeView.findViewById(R.id.Button01);
addressText = (EditText)placeView.findViewById(R.id.placeAddressText);
button.setOnClickListener(buttonClick);
nameText.setText(name);
addressText.setText(address);
return placeView;
} }
View 2 Replies
Aug 17, 2010
I created a ListView that contains a row which in turn contain text and a button. The idea is to have the button function as a delete button to remove the row from the list as well as the database. I order to do this I created an adapter to handle the button click. This code is below. Deleting the database record works fine, but I have not yet succeeded in refreshing the ListView so the record will no longer be displayed.
public class FeedArrayAdapter extends ArrayAdapter {
private ARssEReaderDBAdapter dba;
private String TAG = "FeedArrayAdapter";
private View v;
private ListView feedList;..............
View 1 Replies
View Related
Apr 7, 2009
Each row of my view look like that:.............
When I click on the ImageButton "arrow", I trigger a method than need the id of the row to perform. By ID I mean the value of the field "_id" of the corresponding record in database. I did not find a direct way to do it, but I think I can if I get the index of the row in the ListView. Again, I don't know how to get this index from a click to a childview.
View 4 Replies
View Related
May 11, 2010
I have created custom list view using class EfficientAdapter extends Base Adapter implements Code...
View 2 Replies
View Related
Sep 8, 2010
I have a single screen with a bank of buttons below a ListView. Entries on the ListView light up in orange when I scroll so I assume that are selected. When I then press the "Delete" button I want the onClickListener to remove the currently selected entry. But getSelectedItemPosition() always gives me -1. If I can't hope to use the GUI controls in this way, please give me another way of getting the same result.I have even tried setting the onClickListener of the List View to store the index before the button is pressed (in case pressing the button unselects the entry) but even that is always -1 it seems.
View 1 Replies
View Related
Oct 12, 2010
I created a custom dialog that extends Dialog. One button on that the dialog is an "OK" button which the user is expected to press when finished entering information in other fields. I cannot get any listeners set to that button to fire.
public class HeightDialog extends Dialog {
private Button okButton;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.heightdialog);
this.okButton = (Button)this.findViewById(R.id.userOkWithHeight);
this.okButton.setOnClickListener(new android.view.View.OnClickListener() {................
View 2 Replies
View Related
Jul 15, 2010
I am using one class which extends ListActivity and One class extending BaseAdapter.
The Base Adapter uses getView function to inflate layout from xml.
The xml contains a text and a button to delete the row of list.
Please let me know how to handle the button click in the ListActivity class.
View 1 Replies
View Related
Sep 9, 2010
My scenario is like this:
CODE:........
The problem I have is that I can't get my ListView to get the right height that I want. I'll add a couple of components with my custom BaseAdapter class and everything there works as intended. But when i then debug my application i can only see 1,5 out of 3 components in the list and the rest is hidden futher down in the ListView. But how can i make my ListView calculate how many components i have and get it to show all my components direcly without having too scroll down.
Another thought is if i could populate any other kind of View with my BaseAdapter? Because the only reason I'am using ListView is because of the setAdapter() method.
View 2 Replies
View Related
Jul 3, 2010
I'd like to make a list adapter that formats views like this:
I want to be able to fire a different onClick when the user clicks the image. I have defined the onClick on the image itself in the getView() override, but how do I then get the position of the line that was clicked so I can update the record in the database to record the action?
View 1 Replies
View Related
Apr 1, 2010
when I click on one item in the ListView that item's background changes to light gray, but when I continue to scroll through the list every 4th item has the background changed to light gray even though those other items have not been clicked. How do I make only the item I clicked be effected by the click?
ListView lv = (ListView) findViewById(R.id.resultsList);
lv.setAdapter(new ArrayAdapter(this, R.layout.resultitem, (String[])labelList.toArray(new String[labelList.size()])));
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View view, int position, long id) {
TextView tv = (TextView)view.findViewById(R.id.result);
tv.setBackgroundColor(Color.LTGRAY);
tv.setTextColor(Color.BLACK);
View 1 Replies
View Related
May 3, 2010
I have a ListView in my Activity. I am trying to catch both a click and a long click (which should bring up a context menu).
ListView lv = (ListView) findViewById(R.id.MyListView); ... lv.setOnItemClickListener(this); lv.setOnCreateContextMenuListener(this); ...
I notice that if I have both the click and long click listeners up, I won't ever get the long click listener (i.e. the context menu). If I remove the setOnItemClickListener() call, i get a call into
@Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscribe@googlegroups.com For more options, visit this group at
View 4 Replies
View Related
May 31, 2010
I have just started my career as an android programmer, and am currently relying heavily on the sample code and api examples. I have been working with this api example, to produce an expandable list of items (note this example does not use the ExpadableListView).In playing with the example, I tried to add another widget that would become visible and be gone at the same time as the text (mDialogue in the sample code). This works well with another TextView, but as soon as I tried to add a button widget, it stopped working. The list would expand on first click, showing my hidden TextView and Button, but it will not disappear on further clicks. The button is however, clickable, and I was able to set up an onClick listener to change the button text back and forth.I'm starting to wonder, is it just not possible to have a clickable item inside a clickable list item? Or is there some kind of work around? Would it solve my problem if I used ExpandableListView?
View 1 Replies
View Related
Jul 9, 2010
I have created a simple class named Panel which extends the SurfaceView class and does some drawing in the onDraw method. When I use it from the code it works fine. For example this works as expected:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new Panel(this)); ....
However when I try adding this component from an xml layout the program crashes:
XML file (main.xml):
<?xml version="1.0" encoding="utf-8"?> <org.anddev.Panel android:id="@+id/panel" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"/>
Code:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);....
Error msg: Sorry!
The application Test (process org.anddev) has stopped unexpectedly. Pleas try again.
I can not figure out why the same class works when created in one way and doesn't work when created in another.
View 3 Replies
View Related
Mar 29, 2010
I'm trying to create a component using an xml layout file. I defined a layout with some custom attributes. This layout is inflated when user add it inside another layout. My problem is I don't know the parent, so I pass null for the parent viewgroup when I call inflate method. I think that's the reason why I see anything in my view. Do you know how can I do (I don't want to redefine onDraw method because I use existing component). Below my xml layout and my custom class.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content">
<ImageView android:id="@+id/img_btn_option" android:layout_width="wrap_content" android:layout_height="wrap_content"/>
<TextView android:id="@+id/txt_btn_option" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_toRightOf="@id/img_btn_option"
android:textColor="@color/font_white" android:textStyle="bold"/>
</RelativeLayout> public class ButtonOptionsView extends View {
public ButtonOptionsView(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater li =(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
RelativeLayout vg =(RelativeLayout)li.inflate(R.layout.button_option, null);
TypedArray ta = getContext().obtainStyledAttributes(attrs,R.styleable.ButtonOption);
((ImageView)vg.findViewById(R.id.img_btn_option)).setImageResource(ta.getResourceId(R.styleable.ButtonOption_image,0));
((TextView)vg.findViewById(R.id.txt_btn_option)).setText(ta.getResourceId(R.styleable.ButtonOption_text,0));}
View 4 Replies
View Related
Dec 8, 2009
I've made a little test component that overrides ImageView, called myImageView, and prints some text and an arrayList of Doubles over whatever image is specified in the related xml. However, right now, the text and Doubles that are drawn over the image are defined within the myImageView class. Is there a way to pass the data from the main onCreate function to the myImageView class before the layout is drawn?
I'm new to OO programming, but based on my understanding of this:
http://developer.android.com/guide/topics/ui/custom-components.html
It's possible because ImageView is just like any other class. This leaves me with two initial guesses:
1. I could generate my test data in the main onCreate, and store it in the array's xml file, and then read that xml file with myImageView,
OR
2. I could extend view instead of ImageView, but because of my new- ness, then I would lose the ability to use it in an xml layout sense - and that's what I really want.
View 2 Replies
View Related
Dec 9, 2009
I've prepared custom component based on LinearLayout. Whole component is defined in XML. Currently to use it you have to write:
<com.xxx.android.components.TopMenu
android:layout_width="fill_parent"
android:layout_height="44dp" />
Is it possible to set width and height in the java constructor? So it would be possible to write just:
<com.xxx.android.components.TopMenu />
I've tried to modify and set LayoutParams, but it didn't work for me.
View 1 Replies
View Related
Aug 16, 2009
I've created custom compound component and observe very strange exception (google says nothing about it). Custom component rare exception: Parser is not a BridgeXmlBlockParser!
It is very simple:
public class MyTabber extends LinearLayout {
.. public MyTabber(Context context) { super(context);
Init(context); }
View 2 Replies
View Related
Jun 12, 2010
I have made a Custom Component in XML, consisting of a button with an imageview stacked on top of it:
<myapp.widget.ClearableCaptionedButton
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button
android:id="@+id/ccbutton_button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical|left"
android:textAppearance="?android:attr/textAppearanceMedium"
android:background="@android:drawable/edit_text"/>
<ImageView
android:id="@+id/ccbutton_clear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dip"
android:layout_alignRight="@id/ccbutton_button"
android:layout_alignTop="@id/ccbutton_button"
android:layout_alignBottom="@id/ccbutton_button"/>
</myapp.widget.ClearableCaptionedButton>
Extract of java source code:
public class ClearableCaptionedButton extends RelativeLayout implements OnClickListener {
...
public ClearableCaptionedButton(Context context, AttributeSet attrs) { super(context, attrs);
// some stuff that works fine
} ..
protected void onFinishInflate() { super.onFinishInflate();
mButton = (Button) findViewById(R.id.ccbutton_button);
mClear = (ImageView) findViewById(R.id.ccbutton_clear);
mButton.setText(""); // error here: mButton == null
}
My problem is similar to this one. When I try to find the views inside the custom compound, findViewById returns null. But, as you can see, i already added super(context, attrs); to the constructor. I am using the custom component directly in xml layout, like this:
<LinearLayout>
<!-- some stuff -->
<myapp.widget.ClearableCaptionedButton
android:layout_width="fill_parent"
android:layout_height="wrap_content"
app:caption="to"/>
</LinearLayout>
View 1 Replies
View Related
Jun 11, 2010
I'd like to create a custom component which supports voice recognition. (Custom Component which displays voice recognition button if available). It will primarily be an extended EditText which should show the microphone button for voice recognition if it is available. I wanted to to look at the search app-widget on the homescreen but I don't find it in the source. This is intended to use the voice recognition as some sort of dictation device, i.e. the user does not have to type but use his voice instead. So could anyone please point me in some direction?
View 1 Replies
View Related
Oct 29, 2009
The app I'm working on has 4 tabs, 3 of which share many features, including a navigation bar a the bottom with Back, Edit, and Map buttons. There is exactly the same xml in all 3 layouts, so I'm trying to DRY this out by extracting that xml into a separate component, including it, and then going from there. Previously I had:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/showedit_toolbar" style="@style/showItemToolbar">
<ImageButton android:id="@+id/show_person_back_button"
style="@style/blackToolbarButton"
android:src="@drawable/left_white_arrow"
android:layout_alignParentLeft="true"/>
<Button android:id="@+id/show_person_map_button"
style="@style/blackToolbarButton"
android:text="map" android:layout_alignParentRight="true"/>
<Button android:id="@+id/show_person_edit_button"
style="@style/blackToolbarButton"
android:text="edit" android:layout_toLeftOf="@id/show_person_map_button"/>
</RelativeLayout>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:layout_above="@id/showedit_toolbar"
style="@style/CoinLightTheme">
// Lots more layout omitted
I extracted out the bit that's repeated into an xml file called show_toolbar.xml, changing the names of variables to make it more generic across the 3 views
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/show_toolbar" style="@style/showItemToolbar">
<ImageButton style="@style/blackToolbarButton"
android:src="@drawable/left_white_arrow"
android:layout_alignParentLeft="true"
android:id="@+id/show_back_button"/>
<Button android:id="@+id/show_map_button"
style="@style/blackToolbarButton"
android:text="map" android:layout_alignParentRight="true"/>
<Button android:id="@+id/show_edit_button" style="@style/blackToolbarButton"
android:text="edit" android:layout_toLeftOf="@id/show_map_button"/>
</RelativeLayout>
Then from within my original layout file, I replaced that big block of code with
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent" android:layout_width="fill_parent">
<include android:id="@+id/show_toolbar" layout="@layout/show_toolbar"/>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent" android:layout_width="fill_parent"
android:layout_above="@id/showedit_toolbar" style="@style/CoinLightTheme">
Now, the problem is that the view no longer shows up. Including Custom component causes it to be hidden behind main viewI can still click the buttons and they respond (i.e. if I click in the corner where the button should be, it still works), but I cannot see the buttons or bar onto which they were drawn. I cannot find very good documentation on how Include is supposed to work, so perhaps I am using it incorrectly.
View 1 Replies
View Related
Nov 7, 2009
I have a res/layout/main.xml including these elements and others:
<some.package.MyCustomView android:id="@+id/foo" (some other params) />
<TextView android:id="@+id/boring" (some other params) />
In my Activity's onCreate, I do this:
setContentView(R.layout.main);
(TextView) boring = findViewById(R.id.boring);
// ...find other elements...
MyCustomView foo = (MyCustomView) findViewById(R.id.foo);
if (foo == null) { Log.d(TAG, "epic fail"); }
The other elements are found successfully, but foo comes back null. MyCustomView has a constructor MyCustomView(Context c, AttributeSet a) and a Log.d(...) at the end of that constructor appears successfully in logcat just before the "epic fail".
findViewById() returns null for custom component in layout XML, not for other components. Why is foo null?
View 2 Replies
View Related
Dec 19, 2009
When I DL'd the GDE app, I accidentally set my stock droid "HOME" screen as the default screen when the popup box came up asking me to choose between stock Home and GDE. Now when I click on GDE and click the home button, it switches back to the stock Home screen. How to I switch the settings now to set the GDE app as the new home screen?
View 15 Replies
View Related
Nov 2, 2010
I like being able to wake the phone to view the lock screen using the home button at the bottom of the phone, but is there any way to make it so that a second click of that button, or a click of one of the others down there, will make it sleep again? Having to press the power button up top is just an inconvenience.
View 5 Replies
View Related
Jun 26, 2010
I would like to change text and back ground color of my Listview without building custom rows. Is this possible ?
View 1 Replies
View Related
Jun 18, 2010
I have seen examples implementing a custom Filter. The Android developer docs talk about implementing a Filterable interface. Does anyone have any advice and/or sample code on the best way to implement filtering in a ListView ?
View 2 Replies
View Related
Sep 25, 2009
The Android app I'm currently developing has a main activity that has grown quite large. This is mainly because it contains a TabWidget with 3 tabs. Each tab has quite a few components. The activity has to control of all those components at once. So I think you can imagine that this Activity has like 20 fields (a field for almost every component). Also it contains a lot of logic (click listeners, logic to fill lists, etc). What I normally do in component based frameworks is to split everything up into custom components. Each custom component would then have a clear responsibility. It would contain it's own set of components and all other logic related to that component.
I tried to figure out how this can be done, and I found something in the Android documentation what they like to call a "Compound Control".
(See http://developer.android.com/guide/topics/ui/custom-components.html and scroll to the "Compound Controls" section) I would like to create such a component based on an XML file defining the view structure.
In the documentation it says:
Note that just like with an Activity, you can use either the declarative (XML-based) approach to creating the contained components, or you can nest them programmatically from your code. Well, that's good news! The XML-based approach is exactly what I want! But it doesn't say how to do it, except that it is "like with an Activity". But what I do in an Activity is call setContentView(...) to inflate the views from XML. That method is not available if you for example subclass LinearLayout. So I tried to inflate the XML manually like this:
public class MyCompoundComponent extends LinearLayout {
public MyCompoundComponent(Context context, AttributeSet attributeSet) {
super(context, attributeSet);
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.my_layout, this);
} }
This works, except for the fact that the XML I'm loading has LinearLayout declared as the root element. This results in the inflated LinearLayout being a child of MyCompoundComponent which itself already is a LinearLayout!! So now we have a redundant LinearLayout in between MyCompoundComponent and the views it actually needs. Can somebody please provide me with a better way to approach this, avoiding having a redundant LinearLayout instantiated?
View 1 Replies
View Related
Jun 15, 2010
I am writing a custom component (derived from a relative layout) which has to show a dialog. Is there a way to do this using callbacks like oncreatedialog or onpreparedialog? if not: if i have to create the dialog outside oncreatedialog, i have to "attach it to an Activity with setOwnerActivity(Activity)". How can the custom component access the activity it is used in, when it is used in the activity's xml-layout and not created from code?
View 1 Replies
View Related
Oct 5, 2010
I'm reading the android developer docs on creating custom components and one thing that's unclear, is whether you can define the layout of your component using xml and then reuse that across class libraries. like, say for instance, I want to create a class library called myComponents, and in there i want to have myTehAwesumsWidget or whatever, and i want the layout to be defined in xml, can i include that xml in the referenced class library?
View 1 Replies
View Related
Apr 4, 2010
I use ListView.(Adapter is a Custom Adapter) *extends BaseAdapter. I wanto to get selected item, when I click the item in the list. now, I use OnItemClickListener, OnItemSelectedListener. but, This program doesn't do the operation for which I hope. not click. I want to get a selected Item in the list, when like mouse_down. (Moment when color of item in list changed?)
View 3 Replies
View Related
Jul 15, 2010
i used android:autoLink="web" in textview inside a listView, the problem when the listview have a link, it looks like the android:autoLink="web" override the on click function for that listview. What i need is to be able to click the link and able to click on the listview that contains the link.
View 2 Replies
View Related