Develop Reference

How to Prevent TextWrapping programmatically?

How can I prevent a TextView, or any visual object, from wrapping to the screen and instead have them cropped programmatically?
I have a table view which is loaded with TextViews as cells. I need to crop the text inside the textview instead of wrapping.
Is there some code to do this? or is there any workaround?
For example, I have like this:
But what I want is:

I found my own way to fix this. I set the textView.SetMaxLines to 1 and it solved the problem for me.

You can use setSingleLine method:
TextView textView = (TextView) findViewById(...);
textView.setSingleLine(true);
and setEllipsize to remove ellipsize:
textView.setEllipsize(null);

How to add blocks of linearLayouts and is there a better way?

This is the main idea of what I am trying to do.
I would like to ask you what is the best way to make such a design. the problem is that these gray/black blocks might not show up (user will choose which should show up). So I would like to find out do I need to make these 3 text views inside linearLayout programatically? Is there anyway to create some sort of template which I would only have to edit by setting new texts for textViews and add them to some sort of layout?

Another option is to just have a LinearLayout and an xml for the row entry. Then you can do:
LinearLayout layout = (LinearLayout) this.findViewById(R.id.your_layout_id);
List<Blocks> userBlocks = getMyUserBlocks();
for(Block b : userBlocks) {
View blockView = LayoutInflater.from(getBaseContext())
.inflate(R.layout.your_row_layout, layout, false);
TextView someData = (TextView) blockView.findViewById(R.id.your_text_view_id);
someData.setText(b.someAttribute.toString());
layout.addView(blockView);
}
You will need a separate xml layout for the block row.

You can use a ListView with large dividers. Your dark gray blocks are the row views, and you can just append them to a dataset and update the adapter for the ListView. For the dividers, see setDivider() and setDividerHeight().

Building a simple Group Chat View in Android

I'm building a very simple online chat room App. What I have achieved is something like below right now:
Robert:blah..
Tom: yes blah..
David(You): That sounds cool!
Lily: Do you know blah...
Robert:blah..
Robert:blah..
David(You): Wow! Blah...
The new feature/problem I'm facing is that I want current user's talks to show on the right.
Like below(this is what David see on his screen):
Robert:blah..
Tom: yes blah..
That sounds cool! : David(You)
Lily: Do you know blah...
Robert:blah..
Robert:blah..
Wow! Blah... : David(You)
Each line above is a TextView, and I'm dynamically creating TextView whenever there's new message, then adding them to the LinearLayout that contains these TextView. In order to make David(current user)'s talk on the right, I tried to set align right and I change the LinearLayout to RelativeLayout. But then I realize once I use RelativeLayout, all talks are in the same line overlapping each other since I didn't set their height.. Can anyone shed some light on how to achieve this please? My codes below:
...
//new messages are stored in lines[]
for (int i = 0; i < lines.length; i++) {
TextView newLine = new TextView(getBaseContext());
newLine.setText(lines[i]);
// check if the speaker of this line is user himself
if (speakerName.equals(userName)) {
//change the layout of this textView to make it align right..
}
myLinearView.addView(newLine);//add to linearView that contains these talks
}

You definitely need to use a ListView, as Chor WaiChun mentioned. However, the way you would do this with a relative layout would be to set the RelativeLayout.layoutParams for the view with a rule that sets it to layout_below the previous view. Just like you would in XML.
Also, even if you insist on adding 1 view per line (which as previously stated is wrong, use a ListView), there's no reason not to use the LinearLayout. You can have a LinearLayout with right justified text, just set the gravity to right.

Android Tablelayout problem!

I have a TableLayout in which I have one row holding two TextViews, the first one holds a String representation of a Date, the second one holds a title. My problem is the first one should always be 100dp wide, the seconde one should use the spaces that's left. The first TextView works fine and it will go to a new line if the string cannot be displayed in one line. But the problem is the second TextView, it is always too wide (its width expands out of the screen), no matter how I change its size, and I can only see part of the text that's inside it. Anyone knows how to fix this?

txtView1 = new TextView(this);
LinearLayout lLay= new LinarLayout(this);
txtView2 = new TextView(this);
lLay.addView(txtView2);
row.addview(txtView1);
row.addview(lLay,220,Layout.Wrap_Content);
just try this coz it solve my problem.

How to set a long string in a text view in a single line with horizontal scroll

actually i have keep one scrollview. Inside that scroll view I set one textview at run time I want to set text in that textview. The string which I'm going to set is some what big in length so i could not get the string in a single line and i can get my string two or three lines. My scroll view layout width size is 250px. I dont want to exceed that size...My expectation is i want to see that string within that scrollview as single line if the string is exceeds the scroll size then it should horizontally scroll in text view. I tried some functions like setting horizontal scroll to scrollview and textview but nothing is work out.
Pls help me how to solve this problem.
urs,
s.kumaran.

you have to use these two Xml attributes in your TextView widget:
android:scrollHorizontally="true"
android:singleLine="true"
So your xml layout must contain something like this:
<TextView
android:text="Single-line text view that scrolls automatically if the text is too long to fit in the widget"
android:singleLine="true"
android:ellipsize="marquee"
android:marqueeRepeatLimit ="marquee_forever"
android:focusable="true"
android:focusableInTouchMode="true"
android:scrollHorizontally="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
you can get the correspondant method for these attributes if you are creating Your TextView with code, refer to TextView documentation :
setHorizontallyScrolling(boolean)
setTransformationMethod(TransformationMethod)
setMarqueeRepeatLimit(int)

try this ,,
TextView.setHorizontallyScrolling(true)
TextView.setLines(1);
where did you add the textview..Inside scrollview we able to add only one view...

Take TextView and HorizontalScrollView. Just put textview inside the HorizontalScrollView. And yes make sure to mentioned android:singleLine="true" inside the TextView.

I had the same issue with a TextView inside a table and nothing detailed here solved the fact that it wouldn't scroll horizontally (automatically, which might not be the desired effect from OP, but it's quite unclear).
While comparing some code that did work, I found out the TextView must be selected for scrolling to start:
TextView text_view = new TextView(context);
text_view.setLines(1);
text_view.setHorizontallyScrolling(true);
text_view.setMarqueeRepeatLimit(-1); // At this point the view is not scrolling!
...
text_view.setSelected(true); // Get scrolling to start
Seems crazy, but it works.

for me, this one line in the EditText xml was enough:
android:singleLine="true"

You didn't specify if this was in XML or java code, but here's the java code to get that working:
// Allow textView to scroll
textView.setSingleLine(true);
textView.setHorizontallyScrolling(true);
textView.setEllipsize(TextUtils.TruncateAt.MARQUEE);
textView.setMarqueeRepeatLimit(-1);
textView.setSelected(true);
textView.setPadding(10, 0, 10, 0);
The only unnecessary item here is the padding, which I find to look best so the text does not touch the border of our 250px TextView.