Develop Reference

To disable a listview in a fragment thanks to a view behind

I want to disable a listview which is in a fragment, when a pop-up appears over the activity (the pop-up is a group of views). I don’t want use the property visibility.gone because I want a style effect : I want use a view color with alpha to simulate a disabled background.
I've tried masking the listview with transparent alpha color. But the edit text of listview are clickable, and scrolling is possible again.
Can I superpose list view and "disable" it thanks to any tips ?

In your XML, Add below attributes to the transparent view:
android:clickable="true"
android:contextClickable="true"
android:focusable="auto"
android:focusableInTouchMode="true"
android:longClickable="true"

Align the start of the text in EditText and TextVIew

I have a simple layout in a table that consists of 3 rows. The second column may have either an EditText or a TextView like in the picture below:
Now, my question is how can I align the start of the text in EditText and TextView so that they are visually under each other (the texts, not the controls)? In the image above, the text in the second line starts too much to the left. I don't want to hardcode the padding as it may not work the same way on different devices.

try setting a padding for the second textview.
android:padding="5dp"

Instead of making the TextView match the EditText, make the EditText match the TextView by making its background null:
<EditText ... android:background="#null" ... />
The underline in the EditText then goes away and everything lines up perfectly.

How to add empty area in a linearlayout?

I want to add a image button on the right side of the row in my linearlayout. I tried it with padding left which works but a grey shadow is visible for the padding area. How can I achieve this with linearlayout but without the shadow. Does someone know how to achieve this?
Thanks

android:gravity="right" into your XML code should do the trick. Essentially, this will force the View to head to the right part of the view.

Create animation for text field

I need to create an animation in Android. I have 3 TextViews placed in an LinearLayout. All I want to do is the text field must come on to the screen as though it has been pulled out from the left end of the screen. Something similar to a marquee, however the text field must come from left end of screen one character at a time to occupy the left end of screen.

you must textView set textview property in your xml layout android:ellipsize="marquee" and you oncreate() method to set textview like youtextview.setSelected(true); now your textview running with marquee effect perfectly work for me!
another way you can add dynamically textview in coding you can follow this code:
yourtextview.setEllipsize(TruncateAt.MARQUEE);
yourtextview.setSelected(true);

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.