Android :: Adding Animation To A ListView In Order To Expand/collapse Content
Oct 3, 2010
I have a list view which uses a custom adapter in order to show my custom content. Its layout is the following.
CODE:...............
I would like that the listview only showed the view with the ids itemimage and item description, keeping the itemtext hidden.
The idea is to have an onclicklistener on each item of the list, in order to expand that item so it shows the itemtext content. I know I should use Tweening animation in order to expand/collapse each item, but I can't figure out how to do that.
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Nov 12, 2010
In my app I have nice ExpandableListView. I would like sometime, depending of situation, to expand some or all groups. I would also like to be able to remove/hide groups, expand all and basically have (visually) ExpandableListView without groups. I looked at all available methods for ExpandableListView and couldn't find any that would do what I want to do.
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Apr 24, 2010
I have a simple list view listing results in android. Upon click of each item, I would like it to slide down expand and show the content. Is there an easy way to do this in android?
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Feb 23, 2010
- TEXT VIEW -' SLIDE DRAWER image
I have a layout like this above textview and an image that slides down after clicking the text view. I have looked at translate animation but the issue is I want the image to start from the bottom of text view and gradually get into its full view. Translate animation doesn't let me start from behind the textview so that it can appear slowly and coming out at the bottom of text view and expanding to its fullview. I have linear layout now with textview and imageview.
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Aug 23, 2010
Basically I am trying to recreate the default contact screen when you click on "+" button another row of Phone number added to the list. Right now I have an ImageView as the "+" button and a ListView to contain the list of phone numbers. The problem is that the ListView doesn't expand when I add more item into the list. I could build the same look with LinearLayout but how can I save all those numbers that way? Below is the layout of the item that will be inflate with custom Adapter:
<?xml version="1.0" encoding="utf-8"?> <TableLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content" android:layout_height="60px"
android:stretchColumns="1" android:background="#FFFFFFFF"
android:gravity="center_vertical"> <TableRow>
<Button android:id="@+id/type" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:paddingLeft="10dp"
android:text="Home" /> <RelativeLayout android:layout_width="fill_parent"
android:layout_height="wrap_content" android:paddingLeft="10dp"
android:paddingRight="10dp" >
<EditText android:id="@+id/value" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_alignParentTop="true"
android:layout_alignParentLeft="true" android:text="" android:hint="Name"
android:lines="1" android:textSize="10pt" android:typeface="sans"
android:textColor="#FF000000" android:gravity="left" /
</RelativeLayout> <ImageView android:id="@+id/del"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_alignParentRight="true" android:layout_alignParentTop="true"
android:paddingRight="14dp" android:src="@android:drawable/ic_delete" />
</TableRow> </TableLayout>
This is the ListView portion.
<ListView android:id="@+id/phoneList" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:background="#FFFFFFFF"
android:scrollbars="none" />
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May 13, 2009
I'm having a little problem with a ListView scrollbar. The scrollbar appears at the side as expected, but how do I get the scrollbar to expand and become controllable in the same way it behaves in the Contact list? Ideally I'd like all the Contacts list functionality for my app - i.e. to allow me to control the scrollbar directly with a finger and to show the first letter of the list elements you're currently scrolled to.
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Feb 9, 2010
Basically, I have a custom ListView in which each item looks like:
CODE:..........
The ListView in each item is GONE by default and is set to VISIBLE when the button is clicked. Everything seems to work fine with the exception that when the ListView is long enough to scroll, it is just kind of truncated. http://img38.imageshack.us/img38/3269/listviewproblem.png
Is this a problem with the maximum height of an individual list item? Is there a way to force the list item to expand and force the child listview to expand to show all children?
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Jun 24, 2009
There must be a way to do this. How can you tell a ListView that has a header to not scroll it when the user scrolls the contents? I want it to stay in a "stuck" position so that the user can always see what column the content applies to.
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Nov 24, 2010
Since I'm still just learning Android (and it appears Amazon says it'll be 2 months till I get the Hello, Android book) I'm still playing around with doing simple things. I have no problem getting an icon to display with the click of a button on my RelativeLayout using ImageView. The code for creating it is as follows:
private int mIconIdCounter = 1;
private ImageView addIcon(){
ImageView item = new ImageView(this);
item.setImageResource( R.drawable.tiles );
item.setAdjustViewBounds(true);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT );
if( mIconIdCounter != 1 ){
params.addRule(RelativeLayout.RIGHT_OF, 1 );
}
item.setLayoutParams( params );
item.setId( mIconIdCounter );
++m_IconIdCounter;.......................
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Aug 25, 2010
I have two Activities A and B . When i swithc between activity A to B the Activity b comes with 3d transition animation.when i press a back button in Activity B the Activity B exits with Animation.
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May 5, 2010
I am trying to add an HTML content to a web view. If the words in the HTML content are without spaces then webview keeps that particular word on the same line.I want that content to be wrapped and be on the next line.Is it possible to do that.I am attaching a sample code that can reproduce the issue.
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Sep 1, 2009
I noticed that when item in in a list is clicked rapidly, there is chance that item in other row becomes dark. Especially when you click turn on/off bluetooth in system setting quickly. Has anyone noticed it and is there fix for this?
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Sep 1, 2010
Let's say I have a ListView of items:
Cat
Dog
Mouse
And these are bound to the ListView via an adapter to a database.
What I want to be able to do is to be able to re-order the list view,. For example I want to somehow drag "Mouse" up to the top of the list above "Cat". Once I have an order set, I then want to "save" the list and its order back to the database.
Is there any way to do this? Has someone made such a custom ListView that I could use? The only alternative I can think of is to long press on a list view item and have a "Move up by one", "Move to top", etc. context menu that moves items around in the list.
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Sep 2, 2010
I am new to android, and ended up (have to) ask a question here. Let's make it simple, I simply want to make my own TextView-like (MyView extends View), This is my code:
public class MyView extends View { private Paint mPaint;
private String mText; private Bitmap mBitmap1; private Bitmap mBitmap2;
public MyView(Context context) { super(context); initView(); }
public MyView(Context context, AttributeSet attrs) { super(context, attrs);
initView(); } private final void initView() { mPaint = new Paint(); }
public void setText(String text) { mText = text; }
@Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int measuredWidth = measureWidth(widthMeasureSpec);
if (mBitmap1 == null) initBitmap1(measuredWidth);
int measuredHeight = measureHeight(heightMeasureSpec);
setMeasuredDimension(measuredWidth, measuredHeight);
}
private void initBitmap1(int measuredWidth) {
mBitmap1 = Bitmap.createBitmap(measuredWidth, Fonts.getHeight(), Bitmap.Config.ARGB_4444);
Canvas canvas = new Canvas(mBitmap1 ); canvas.drawText(mText, 0, 0, mPaint);
} private void initBitmap2() {
mBitmap2 = Bitmap.createBitmap(30, Fonts.getHeight(), Bitmap.Config.ARGB_4444);
Canvas canvas = new Canvas(mBitmap2); canvas.drawText(mText, 0, 0, mPaint);
} private int measureWidth(int widthMeasureSpec) {
int measuredWidth = 0; int specWidthMode = MeasureSpec.getMode(widthMeasureSpec);
int specWidthSize = MeasureSpec.getSize(widthMeasureSpec);
if (specWidthMode == MeasureSpec.EXACTLY) { measuredWidth = specWidthSize;
} else { measuredWidth = getWidth(); if (specWidthMode == MeasureSpec.AT_MOST) {
measuredWidth = Math.min(measuredWidth, specWidthSize);
} } return measuredWidth; }
private int measureHeight(int heightMeasureSpec) {
int measuredHeight = 0; int specHeightMode = MeasureSpec.getMode(heightMeasureSpec);
int specHeightSize = MeasureSpec.getSize(heightMeasureSpec);
if (specHeightMode == MeasureSpec.EXACTLY) { measuredHeight = specHeightSize;
} else { measuredHeight = 80; if (specHeightMode == MeasureSpec.AT_MOST) {
measuredHeight = Math.min(measuredHeight, specHeightSize);
} } return measuredHeight;
} @Override protected void onDraw(Canvas canvas) {
super.onDraw(canvas); canvas.drawBitmap(mBitmap1, getLeft(), 0, mPaint);
initBitmap2(); canvas.drawBitmap(mBitmap2, getLeft(), 30, mPaint);
} }
In my code, I populate some numbers of MyView (let's say 20) in a ListActivity. My question is why mBitmap1's order changes randomly while i scroll (up-down) fastly (if I scroll slowly, this problem not occur)? mBitmap2 stays where those should be.
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Jun 10, 2010
I have added a menu to ListView Activity and wanted to allow the user to select the information that would be displayed in the ListView. So for example:
The ListView is populated in the onCreate method.
The user selects an option in the menu.
Upon the user making this selection the ListView would be populated with a different array.
Is onResume() executed after the menu is closed? I would test this but I am not currently home.
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Jun 15, 2010
I followed all the instructions on the other really long thread. I am having one issue though. I installed SDK and the drivers, that all went perfect. The only issue I am having is with the actual bootanimation.zip. I am thoroughly stuck. After I download a bootanimation.zip it shows up in winrar with 4 files (loading, eye, android, and the desc.txt) I know it has to go in tools. I am just not sure how? Do I add each folder or is there a way to add them all? I also know the name has to be bootanimation.zip. I tried a few different ways and pushed it to my Inc. But I cant get it to boot with the animation.
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Mar 15, 2010
I have a fairly complex activity the parent being a linearlayout with a table with some basic info and buttons. Then a couple listviews that the user can add items to. So these listviews grow more and more as the user uses the app. The problem I'm running into is the Linearlayout is bigger then the resolution of the screen and so it needs to scroll. So the scrolling doesn't work on the Listviews. I've tried playing with changing the layout_height of the listview and its child element with no success. Is there a way to make these couple listviews expand out to the amount of children? Or am I going about this all wrong? If so what other controls can I use?
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Oct 18, 2010
I'm looking to create a listview screen similar to the Sound Setting screen (in the built in Settings app, see image below), i.e I want some rows to have text + checkboxes, other rows to have text + "pop up" buttons, some rows should have text only etc.What is the best way to accomplish this?
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Jun 25, 2010
Back when I originally wrote my app, I thought I could use some tricks with TransitionDrawable to briefly highlight some rows in a ListView. However, when I actually implemented this (a fading background), the background would jump from item to item randomly.
As my knowledge of Android has progressed, I've learned why this no longer works: the ListView uses optimizations and actually shuffles rows around, so the row that I may have originally told to animate ends up placed in a different spot by the time the ListView is visible.
My question is whether there's a solution to this problem. I've thought of using a different view type, but that would only work if I can turn *off* the view type for that row at the right time; since I'm using a TransitionDrawable, there's no way for me (right now) to mark once the animation is done.
Does anyone have any ideas on how to make a temporary fading background on particular rows in a ListView?
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May 4, 2010
Enter the following code into notepad and save as BootAnimation.BAT(I would save this to the desktop.)CHANGE THE 3RD LINE AS NEEDED FOR WHERE YOUR ANDROID SDK IS LOCATED
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May 31, 2009
After the listview is already initialized, is it possible to add items to it during runtime?
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Jun 24, 2010
i am quite new to android and i was wondering how i could go about adding a listview with different images and text. What i am trying to achieve is a listview with four rows which have a different Icon? I don't know how to set that up using the xml layout provided. should i build this using different multiple linear layout or is there a better way to go about it?.. All the examples i have seen all seem to be using one particular Icon and no much detail of the xml layout.
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Oct 17, 2010
I have a ListView that with alphabetical headers for each letter. I also have an index function that brings the letter headers to the top of the screen.
My problem is when I reach the end of the list setSelection is unable to bring the last few headers to the top because it will not scroll past the end of the list.
My question is this: Is there a way to add a blank space to the end of the screen dependent on screen size? I would like to scroll until the last item in the list is at the top of the listView.
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Sep 6, 2010
I'm adding section headers for my listView, there are few methods on the web. Since I'm using simpleCursorAdapter to manage my listView, I adopted phil bogle's method. http://thebogles.com/blog/2010/02/section-headers-for-android-listviews/
The error occurred at this part of the code:
CODE:.................
This is the LogCat shows how they compare while I scroll up the list:
CODE:..............
The correct output should be:
Sun, 05 Sep 2010
112
120
But when I scroll up, the setViewValue calls 120 first and compare with preDate(show above), it becomes:
Sun, 05 Sep 2010
112
Sun, 05 Sep 2010
120
So how can I make the section headers fixed after creating the headers? Why setViewBinder been called while scrolling?
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May 24, 2010
I am trying to create a ListView and add it to a custom ViewGroup.
Here is my code:
CODE:.................
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Mar 16, 2010
I have a ListView in my android activity. And I populate the ListView by sub-class the BaseAdaptor (which returns a View in getView() method).
What if in my click listener of a button in a list item view, I change the text of the TextView in the List item view or change the dimension of the list item view by adding/removing children of the list item view
What is an efficient to refresh my listView? I don't want the listView to re-trigger a query since there is no data change.
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Dec 3, 2009
I would like to capture long click events in a ListView, which was easily done using a OnItemLongClickListener. However, that lacks the fading animation of the selector transitioning to a long press that is seen when the long click is handled by onCreateContextMenu. How can I get that animation using OnItemLongClickListener?
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Oct 4, 2010
I am working on a boot animation for the Droid X that features a clip from the 1986 animated movie of Optimus Prime blasting some Decepticons before his battle with Megatron. Just have to fix a few things before I release it for download. I am trying to add audio but am having a problem. I load the audio file into the /data/local/ folder (as an mp3 file) but it doesn't seem to play. Here is a video of the boot animation:
YouTube - Droid X Transformers Boot Animation (Optimus Prime)
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Dec 11, 2009
I am copying my code below to do the above. The problem I have right now is after I have picked a Contact from the list, I am not able to add the name to the listview. I get a Force Close at that step. See point no. A below to understand what I am talking about.
Also, the ListView is built using 'strings' ArrayList which is empty the very first time. The Menu option 'Add' is then used to pick a Contact and add the contact Name to the ArrayList which is then:
CODE:................................
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Jun 18, 2009
I've been trying to add a linear layout to a listview header. The listview appears fine and is working as expected, but when i try to add a linearlayout to the header i get a java.lang.ClassCastException: android.view.ViewGroup$LayoutParams occuring at the list.addHeaderView (ll); line. I thought it might be something in the complex layout i had so i switched it to just a linearlayout with a colored background and still got the same error. The end result i an trying to get is a list with a header that is all scrollable.
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