Hi I am working on writing my first usable android app. I have the following query , is there a way to populate values of a flied , based on value selected in a spinner.
e.g When country A is selected , 3 values are shown .
But when country B is selected, only 2 values are shown.
Is there a way to achieve this on Android screen? can someone provide some examples or point me in the right direction.
I think this example can help you not sure. I am creating a linear layout on which I will add all option. I am managing options in a hashmap. You can change according to your requirement.
Here is my main Activity:
public class MainActivity extends Activity {
HashMap <String, CheckBox> options = new HashMap<String, CheckBox>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
int number_of_options = 2;
for (int i = 0; i < number_of_options; i ++) {
create_view("option " + i);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private void create_view(String option)
{
LinearLayout layout = new LinearLayout(getApplicationContext());
layout.setOrientation(LinearLayout.VERTICAL);
TextView text_option = new TextView(getApplicationContext());
text_option.setText(option);
CheckBox check_box = new CheckBox(getApplicationContext());
layout.addView(text_option);
layout.addView(check_box);
LinearLayout inner_layout = (LinearLayout) findViewById(R.id.linear_layout);
inner_layout.addView(layout);
options.put(option, check_box);
}
}
create_view will create options for you.
Here is my XML layout:
<Spinner
android:id="#+id/spinner1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="28dp" />
<LinearLayout
android:id="#+id/linear_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/spinner1"
android:layout_below="#+id/spinner1"
android:orientation="horizontal" >
</LinearLayout>
I am simply creating a linear layout and adding options on it. If you are having any doubt then you may ask I will try to help.
I am not managing margin between options.
Related
I was thinking of something and I would like to know if there is any solution.
I want to make a program, where when I am going to press the "add" button, a new row will be created with an Edittext on left and a TextView on right. Every time I press the "add" button, a new row with an Edittext and a Textview will be added.
I have read some tutorials, but all said for only one field and the use of a listview.
How can I add both fields?
I can't figure out how can I set the position of each row and field? For example, I want the 2 fields to have 30dp distance or each row has distance 25dp.
Also, how will I know the id of each one in order to make some calculations?
Can anyone explain me something, give some code or suggest me any tutorial?
Thank you very much!
Something like below (I made it on paint)
...UPDATE...
So, I make some changes to go a little bit further.. I made two lists for TextViews and EditTexts in order to retrieve them later easier.. But It get stuck when I press the button for the second time.. In the first press, it creates the first row, but in the second press, it stuck and not even craches. I am sure, is something stupid that I haven't see it..
EditText ed;
List<EditText> allEds = new ArrayList<EditText>();
TextView tv;
List<TextView> allTvs = new ArrayList<TextView>();
for (i = 0; i < counter; i++) {
ed = new EditText(Main_5.this);
allEds.add(ed);
ed.setId(counter);
ed.setLayoutParams(new TableLayout.LayoutParams(0, ViewGroup.LayoutParams.WRAP_CONTENT, 0.5f));
linearLayout.addView(ed);
ed.setInputType(InputType.TYPE_CLASS_NUMBER| InputType.TYPE_NUMBER_FLAG_DECIMAL);
tv = new TextView(Main_5.this);
allTvs.add(tv);
tv.setId(counter);
tv.setLayoutParams(new TableLayout.LayoutParams(0, ViewGroup.LayoutParams.WRAP_CONTENT, 0.5f));
linearLayout.addView(tv);
mainLinearLayout.addView(linearLayout);
}
Also, could you give me a little help for retreiving the ids?? I am trying to get the EditText id's and show then on specific TextView id's.. I thought something like this for start, but I cannot test it because of the error.. And I want to take it further in order to put on TextView the EditText.. Any ideas??
Double[] doubles = new Double[allEds.size()];
for(i=0;i<allEds.size();i++){
doubles[i] = allEds.get(i).getText().toDouble();
}
Thank you!!
So i've just written a quick program to help you with your problem. This will need tweaking to suit your case.
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">
<Button
android:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Add Row"/>
<LinearLayout
android:id="#+id/linearLayout"
android:layout_below="#id/button"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="wrap_content">
</LinearLayout>
</RelativeLayout>
So here we add a Button to add the things you would like and a LinearLayout to contain them.
MainActivity.java
public class MainActivity extends Activity {
private LinearLayout mainLinearLayout;
private int counter = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button = (Button) findViewById(R.id.button);
mainLinearLayout = (LinearLayout) findViewById(R.id.linearLayout);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
counter++;
LinearLayout linearLayout = new LinearLayout(MainActivity.this);
TableLayout.LayoutParams lp = new TableLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT, 1f);
linearLayout.setLayoutParams(lp);
linearLayout.setOrientation(LinearLayout.HORIZONTAL);
EditText editText = new EditText(MainActivity.this);
editText.setId(counter);
editText.setLayoutParams(new TableLayout.LayoutParams(0, ViewGroup.LayoutParams.WRAP_CONTENT, 0.5f));
editText.setHint("Edit Text");
TextView textView = new TextView(MainActivity.this);
textView.setId(counter);
textView.setLayoutParams(new TableLayout.LayoutParams(0, ViewGroup.LayoutParams.WRAP_CONTENT, 0.5f));
textView.setText("TextView");
linearLayout.addView(editText);
linearLayout.addView(textView);
mainLinearLayout.addView(linearLayout);
}
});
}
#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);
}
}
So what this will do now is when the add row button is clicked, it'll create a new instance of an EditText and a new instance of a TextView and add them to a horizontal LinearLayout and then add that linearlayout to the parent linearLayout created in the XML.
oh!
I added and a clear button for everyone who search it.
Button delete = (Button) findViewById(R.id.delete);
delete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mainLinearLayout.removeAllViews();
}
});
I have horizontal scrollview in my android app with Next and Previous buttons.I want to show the these buttons only when the scollview needs scrolling.ie,width of scrollview content exceeds display width.Also want to hide previous and Next buttons when reaching first and last items respectively.How to to next/previous items when click on these buttons?
main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mainLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ffffff" >
<Button
android:id="#+id/btnPrevoius"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:text="Previous"
android:visibility="gone" />
<HorizontalScrollView
android:id="#+id/horizontalScrollView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="5dip"
android:layout_marginRight="5dip"
android:layout_toLeftOf="#+id/btnNext"
android:layout_toRightOf="#+id/btnPrevoius"
android:fillViewport="true" >
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
</LinearLayout>
</HorizontalScrollView>
<Button
android:id="#+id/btnNext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:text="Next"
android:visibility="gone" />
</RelativeLayout>
activity
public class SampleActivity extends Activity {
private static LinearLayout linearLayout;
private static HorizontalScrollView horizontalScrollView;
private static Button btnPrevious;
private static Button btnNext;
private static int displayWidth = 0;
private static int arrowWidth = 0;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
horizontalScrollView = (HorizontalScrollView) findViewById(R.id.horizontalScrollView1);
linearLayout = (LinearLayout) findViewById(R.id.linearLayout1);
btnPrevious = (Button) findViewById(R.id.btnPrevoius);
btnNext = (Button) findViewById(R.id.btnNext);
for (int i = 0; i < 15; i++) {
Button button = new Button(this);
button.setTag(i);
button.setText("---");
linearLayout.addView(button);
}
ViewTreeObserver vto = linearLayout.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
ViewTreeObserver obs = linearLayout.getViewTreeObserver();
obs.removeGlobalOnLayoutListener(this);
Display display = getWindowManager().getDefaultDisplay();
displayWidth = display.getWidth();
if (linearLayout.getMeasuredWidth() > (displayWidth - 40)) {
btnPrevious.setVisibility(View.VISIBLE);
btnNext.setVisibility(View.VISIBLE);
}
}
});
btnPrevious.setOnClickListener(listnerLeftArrowButton);
horizontalScrollView.setOnTouchListener(listenerScrollViewTouch);
}
private OnTouchListener listenerScrollViewTouch = new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
showHideViews();
return false;
}
};
private OnClickListener listnerLeftArrowButton = new OnClickListener() {
#Override
public void onClick(View v) {
horizontalScrollView.onKeyDown(KeyEvent.KEYCODE_DPAD_RIGHT, new KeyEvent(0, 0));
}
};
public static void showHideViews() {
int maxScrollX = horizontalScrollView.getChildAt(0).getMeasuredWidth()- displayWidth;
Log.e("TestProjectActivity", "scroll X = " +horizontalScrollView.getScrollX() );
Log.i("TestProjectActivity", "scroll Width = " +horizontalScrollView.getMeasuredWidth() );
Log.d("TestProjectActivity", "Max scroll X = " + maxScrollX);
if (horizontalScrollView.getScrollX() == 0) {
hideLeftArrow();
} else {
showLeftArrow();
}
if (horizontalScrollView.getScrollX() == maxScrollX) {
showRightArrow();
} else {
//hideRightArrow();
}
}
private static void hideLeftArrow() {
btnPrevious.setVisibility(View.GONE);
}
private static void showLeftArrow() {
btnPrevious.setVisibility(View.VISIBLE);
}
private static void hideRightArrow() {
btnNext.setVisibility(View.GONE);
}
private static void showRightArrow() {
btnNext.setVisibility(View.VISIBLE);
}
}
The 'maxScrollX' value is not correct for me.How to find maximum scrollvalue for this?
Thanks in Advance
This might come a bit late, but for anyone out there that will face this problem I suggest alternative solution(s).
First, use different component than HorizontalScrollView. Here are the options:
OPTION 1: Horizontal ListView - add this class to your project (create a separate package, something like com.yourproject.widgets). Also you'll need to create custom Adapter, see how that's done in this example. I suggest you create separate adapter class (exp. HorizontalListViewAdapter) and put it in already created com.yourproject.widgets package.
add this widget to your layout in the xml (put it between buttons that need to mimic the scrolling behavior) you'll need to add something like:
<com.yourproject.widgets.HorizontalListView
android:id="#+id/hList"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
reference this (along with the buttons) in the Activity/Fragment that utilizes the widget
HorizontalListView mHList = (HorizontalListView) findViewById (R.id.hList);
Button bPrevoius = (Button) findViewById (R.id.btnPrevoius);
Button bNext = (Button) findViewById (R.id.btnNext);
add onClickListeners to the Buttons. Use the scrollTo() function predefined in the HorizontalListView widget. As you can see in the code, it takes int dp value to scroll. Add positive values if you want to scroll in right (next), and use negative values if you want to scroll in left (previous):
bPrevoius.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
//value 500 is arbitrarily given. if you want to achieve
//element-by-element scroll you should get the width of the
//previous element dynamically or if the elements of the
//list have uniform width just put that value instead
mHList.scrollTo(-500);
//if it's the first/last element you can bPrevoius.setEnabled(false)
}
});
bNext.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mHList.scrollTo(500);
}
});
OPTION 2: More up to date solution to this issue can be the new widget RecyclerView introduced in Android L (addition of android:scrollbars="vertical" seems that would do the trick; other than that should have conventional ListView behavior). For more info check the official documentation.
devu
Plz have a look at the following links
1) http://android-er.blogspot.in/2012/07/implement-gallery-like.html
2) http://androiddreamers.blogspot.in/2012/09/horizontal-scroll-view-example.html
3)http://code.google.com/p/mobyfactory-uiwidgets-android/
Let me know if u r facing any issues
Thanks
In titanium appcelerator, you can do this using scrollableView
var scrollableView = Ti.UI.createScrollableView({
showPagingControl:true,
scrollingEnabled: true,
top: 360
});
Then, you can run a loop of all images or any content that you have, and add them to this view.
for(loop) {
eval("var view"+i+"=Ti.UI.createView();");
profile_image = Ti.UI.createImageView({
image: result[0]['profile_image'],
left:15,
width:82,
height:104,
top: 0
});
eval("view"+i+".add(profile_image);");
eval("scrollableView.addView(view"+i+");");
}
mywin.add(scrollableView);
I have this LinearLayout that is a child of a RelativeLayout along with a ListView among other things:
<LinearLayout
android:id="#+id/color_bar"
android:layout_alignParentBottom="true"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="16dp"
android:padding="0dp"
android:orientation="horizontal"
>
<TextView
android:id="#+id/space_used_bar"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#006688"
android:padding="0dp"
/>
<TextView
android:id="#+id/space_free_bar"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#444444"
android:padding="0dp"
/>
</LinearLayout>
I don't intend to put any text in those TextViews; they are simply there for their background color values. I want to set the width's of these two TextViews programmatically, which I can do, but the problem is that the first time the LinearLayout is presented, it is not drawn. It has no size and I also cannot see the TextViews contained within it. When the user does almost anything (e.g. lock the screen, press the home button, click a list item, select an options item, etc.) the TextViews display properly. It's just that at the first moment when the activity opens, the TextViews and the Layout doesn't show up at all. Does anyone have any idea what the problem might be?
P.S. I have already tried calling invalidate on the LinearLayout as well as the individual TextViews.
EDIT: Here are the callbacks
#Override
public void onCreate(Bundle savedInstanceState)
{
//Log.d(TAG, "onCreate()");
super.onCreate(savedInstanceState);
setContentView(R.layout.browser);
topMenu = getActionBar();
lv = (ListView) findViewById(R.id.file_list);
spaceUsedBar = (TextView) findViewById(R.id.space_used_bar);
spaceFreeBar = (TextView) findViewById(R.id.space_free_bar);
spaceUsed = (TextView) findViewById(R.id.space_used);
spaceFree = (TextView) findViewById(R.id.space_free);
colorBar = (LinearLayout) findViewById(R.id.color_bar);
stat = new StatFs(Environment.getExternalStorageDirectory().getPath());
if (savedInstanceState == null)
{
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
currentDirectory = externalStorageDirectory;
else
{
currentDirectory = new File(ROOT_DIR);
Toast t = Toast.makeText(c, R.string.not_mounted, Toast.LENGTH_SHORT);
t.show();
}
}
else
{
currentDirectory = new File(savedInstanceState.getString("savedPath"));
int savedPosition = savedInstanceState.getInt("savedPosition");
int savedListTop = savedInstanceState.getInt("savedListTop");
if (savedPosition >= 0)
lv.setSelectionFromTop(savedPosition, savedListTop);
}
}
#Override
public void onStart()
{
//Log.d(TAG, "onStart()");
super.onStart();
lv.setOnItemClickListener(this);
lv.setMultiChoiceModeListener(this);
browseTo(currentDirectory);
}
#Override
public void onResume()
{
//Log.d(TAG, "onResume()");
super.onResume();
}
I guess that you haven't redrawn the layout after setting a new width for the TextViews and when the system redraws the layout after the user leaves then returns (locking the screen, home button, orientation change, etc). But I don't see your onCreate() and onResume() code, so it is only a guess...
I'm not sure if this will work but try one of the following (on the textviews). For instance you assign it some initial width or weight, and then adjust it accordingly programmatically when that code executes...
android:layout_width="40dp"
If you want them to take up a percent of the screen instead use the weight attribute:
android:layout_weight="2"
I have an application on which I apply some resources to buttons to modify their backgrounds.
All work well, but when my application goes to onResume after onPause, I'm not able to set the background anymore.
I have a set of 18 buttons, and when I am in onResume, i call:
for (int i = 0; i < max; i++) {
Button b = l.get(i);
b.setBackgroundResource(R.color.green);
}
In l i have the list of all buttons got from findViewById().
This works only for the last element of the for, but not for the others.
Any idea?
** Edit **
This is the code I use for populating the array
btn_1 = (Button)findViewById(R.id.btn_1);
btn_1.setOnClickListener(this);
l.add(btn_1);
this is repeated for all my buttons.
** Second edit **
public void onResume() {
btn_1 = (Button)findViewById(R.id.btn_1);
btn_1.setOnClickListener(this);
l = new ArrayList<Button>();
l.add(btn_1);
...
for (int i = 0; i < max; i++) {
Button b = l.get(i);
b.setBackgroundResource(R.color.green);
}
}
The same is done in onCreate().
try the d following.. this will works fine.
List<Button> mButtonList = new ArrayList<Button>();
onCreate() {
mButtonList.add((Button) findViewById(R.id.btn_1));
mButtonList.add((Button) findViewById(R.id.btn_2));
mButtonList.add((Button) findViewById(R.id.btn_3));
....
for(Button b : mButtonList) {
b.setOnClickListener(this);
}
}
onResume() {
for(Button b : mButtonList) {
b.setBackgroundResource(R.color.green);
}
}
Simple example:
Activity
public class StackOverFlowActivity extends Activity {
private ArrayList<Button> myArray = new ArrayList<Button>();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myArray.add((Button)findViewById(R.id.btn_1));
myArray.add((Button)findViewById(R.id.btn_2));
myArray.add((Button)findViewById(R.id.btn_3));
myArray.add((Button)findViewById(R.id.btn_4));
myArray.add((Button)findViewById(R.id.btn_5));
}
#Override
protected void onResume() {
super.onResume();
for (Button b : myArray) {
b.setBackgroundColor(getResources().getColor(R.color.blue));
}
}
}
XML main
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="#+id/btn_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button 1" />
<Button
android:id="#+id/btn_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button 2" />
<Button
android:id="#+id/btn_3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button 3" />
<Button
android:id="#+id/btn_4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button 4" />
<Button
android:id="#+id/btn_5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button 5" />
</LinearLayout>
My color in the Strings.xml
<color name="blue">#0099CC</color>
Use this instead:
for (int i = 0; i < max; i++) {
Button b = l.get(i);
b.setBackgroundColor(getResources().getColor(R.color.green));
}
If max is really big you might want to cache the getColor result before the loop.
EDIT:
According to the docs: setBackgroundResource is to be used with drawable ids only, and setBackgroundColor seems to be exactly what you need, so maybe another part of your code isn't working well, maybe the loop, the above line for setBackgroundColor works well on my app.
You've said:
": the ... code is the same for btn_1, just swap btn_1 with btn_2, btn_3 and so on. "
if so, than these lines are resetting your Array every time you try and add a new button.
l = new ArrayList<Button>();
l.add(btn_1);
P.S. you should avoid using a manual creation of buttons array - instead use some Parenting Layout such as LinearLayout and then fetch his button son's using getChildAt(i), It's much cleaner. Example:
// Register all the buttons in the layout to the OnClickListener
LinearLayout lin = (LinearLayout)findViewById(R.id.linear_buttons);
int childcount = lin.getChildCount();
for (int i=0; i < childcount; i++){
View v = lin.getChildAt(i);
v.setOnClickListener(this);
}
Try this --
for (int i = 0; i < l.getChildCount(); i++)
{
Button b = (Button) l.getChildAt(i);
b.setBackgroundResource(R.color.green);
}
try this. its working for me
for (int i = 0; i < count; i++) {
btn_title[i] = new Button(ActivityName.this);
btn_title[i].setText(menu.menu_title[i]);
btn_title[i].setId(i);
btn_title[i].setTextColor(Color.BLACK);
btn_title[i].setBackgroundColor(Color.parseColor(dataxml
.getMenucolor()));
btn_title[i]
.setTextSize(Integer.parseInt(dataxml.getFontsize()));
btn_title[i].setGravity(Gravity.CENTER_VERTICAL
| Gravity.CENTER_HORIZONTAL);
btn_title[i].setSingleLine();
btn_title[i].setEllipsize(TruncateAt.END);
btn_title[i].setOnClickListener(new ButtonListner());
}
hope this will help
why don't extend Button class, set its color, then use that new class?
It wont work obviously , let me explain why it has set last value of button .
you are using of one button reference (whatever u got from (Button)findViewById(R.id.btn_1) )
and untimely there is a one button reference and u just change its value using l.add(btn_1);
what you need to do is , do create a new button instance for each button and inflate it in proper view .
here is the small tick for that
for (int i==0 ; i < length; i++ ){
Button button = new Button(context);
collectionOfButton.add(button) ;
}
use that buttons collection using inflate if u try to integrate in some xml layout file .
I have created an Android RSS Reader App.I have a text marquee in my android app.Iam fetching RSS feed and store RSS title as an array.Iam setting this array as the marque text.Check the code,
String MarqueeStr="";
TextView flashnews;
for (int i = 0; i < nl.getLength(); i++) {
MarqueeStr = MarqueeStr +" | "+ Headlines.Title[i];
}
flashnews.setText(MarqueeStr);
Now I have to set an onclick listener for my marquee, so that user can view detailed description of title which they are clicked.I know how to set it.But my problem is, how can i get the array index of clicked string in the marquee text when a user click on the marquee?
here is my XML layout,
<TextView
android:id="#+id/flashs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:lines="1"
android:ellipsize="marquee"
android:layout_marginLeft="70dp"
android:fadingEdge="horizontal"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:singleLine="true"
android:textColor="#e7e7e7" />
screen shote here..
can you see that "Latest News"? its my marquee text
I think that will only be possible if you will create your textviews dynamically and set id for them. like if you are having 10 news link then use 10 textviews
TextView txt = null;
View.OnClickListener marquee_click = new View.OnClickListener() {
#Override
public void onClick(View v) {
int selected_item = v.getTag();
switch (selected_item) {
case 0:
break;
case 1:
break;
case 2:
break;
default:
break;
}
}
};
LinearLayout news_text_layout = new LinearLayout(getApplicationContext());
news_text_layout.setOrientation(LinearLayout.HORIZONTAL);
for (int i = 0; i < 10; i++) {
txt = new TextView(getApplicationContext());
txt.setTag(i); // OR txt.setId(i);
txt.setText("new " + i);
txt.setOnClickListener(marquee_click);
news_text_layout.addView(txt);
}
// ADD YOUR LINEAR LAYOUT ON WHICH YOU HAVE ADDED ALL TEXT VIEW IN YOUR LISTVIEW FOOTER.
// NOW PERFORM SAME ANIMATION OR TRICK ON LINEAR LAYOUT WHICH YOU WERE PERFORMING ON marquee text.
Hope it can help you...
You can add every FlashNews as a dynamically created TextView. And you can put all of these in
one HorizontalScrollView. And set their listeners seperatly.
For marquee function, you can programmatically scroll the horizontalView within your code.
I dont know if it's possible to make it with your idea. (Actually it can be done, but it will contain pain i guess)
for animation look at this i have just created.
Create new project then add class and xml file which i am giving.
public class Test_stflowActivity extends Activity {
LinearLayout ll = null;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final LinearLayout ll = (LinearLayout) findViewById(R.id.linearLayout1);
final TranslateAnimation ts = new TranslateAnimation(200, -100, 0, 0);
ll.setAnimation(ts);
ts.setDuration(5000);
TextView tv = new TextView(getApplicationContext());
tv.setText("*bharat sharma*");
tv.setTextSize(30);
ll.addView(tv);
ll.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ll.startAnimation(ts);
}
});
}
}
this is xml file
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RelativeLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true" >
</LinearLayout>
</RelativeLayout>
it is working for me
if you use a ListView with an adapter, (which you should), you can use the getItem(int position) function to get the specific item.