Android :: Retrieve A TextView's Visible Line Count / Range?
Feb 10, 2010
I have a full-screen TextView holding a long Spanned that requires scrolling. The TextView's getLineCount() gives me the total number of lines used for the entire block of text but I'd like to know how many lines of text are currently visible on the screen.
Or, better yet, is there a way to figure out the range of lines currently visible on the screen? For example, as the view scrolls, can I tell that lines 20-60 are currently visible?
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Jan 14, 2010
In my application, i've a list view, if the last visible line is truncated and I scroll down to this line, I wish that the line becomes fully visible. I have to scroll down once more for it to become fully visible.
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Apr 9, 2009
In the android reference site, it is written in the serCursorVisible section that cursor is visible by default and you can give its value as either "true or "false" to change the its visibility on the GUI screen. But in my case , cursor is remaining invisible irrespective of setting the visibility "true" or "false" using android:cursor Visible = "true" in the layout/main.xml. Should I do something more to make cursor visible on the GUI screen or its a bug in android?
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May 8, 2010
Well I just received my Nexus One on Wednesday. In the last 24 hours I have noticed an odd issue that the case doesn't seem to line up on the back under the metal strip. Its where the plastic and the strip come together on part that has the HTC logo, they don't line up and there seems to be a small visible space. Its more prevalent on the left and there also seems to be some degree of flex on the left side. So I just wanted some input if this seems normal or ok. Should I be calling HTC and attempting to get it replaced?
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Aug 22, 2010
How can I determine the number of visible characters that a TextView can display. For example if I change the orientation this number may change. If I change the resolution then also the number of visible characters changes.
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Nov 16, 2010
I would like to manually add a line break to my TextView. Now sure how I can do this.
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Nov 11, 2010
i want to wrap text to next line any one guide me what is the solution?
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Dec 22, 2009
I have a TextView inside a ScrollView. Let's say the ScrollView is named s and the TextView is named t.
I have many lines to be displayed in the TextView and at the same time I want to scroll the view to a specific line.
So I did this:
t.setText(aVeryLongString);
int y = t.getLayout().getLineTop(40); // e.g. I want to scroll to line 40
s.scrollTo(0, y);
But it won't scroll, except the second time. It seems that on the first time the code finishes, the ScrollView knows how much the total height of the TextView is.
So I think there must be something to force calculating the needed height before the scrollTo call. How to do that (or otherwise)?
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Aug 28, 2009
I am trying to insert line breaks into a string resource so they appear in a TextView. I put in "" but all I get is "
" appearing. Is there a setting I'm missing?
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Aug 27, 2010
I simply populate the database from a text file where each line is a new entry into the table so a line would look like this "This is on first line.This is on second line" and it is stored as text.Is there a reason that it isn't displaying the characters properly? It must be something to do with the string being in the database.
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Sep 21, 2009
When i ran my old application in 1.6 i noticed that the progress bar was not showing up on the screen.When i analyzed it further i found the issue.The progress bar is getting activated but its not visible since my background color is also white.When i changed the background color i was able to see the progress bar.Is there no other way to make the progress bar visible other than changing the background color..Shouldn't the progress bar be visible under all background colors??
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Jul 10, 2010
I have a text file in my res/raw directory. I want to read the file line by line, but FileReader and BufferedReader fail, because of Android's security restriction. How else can I do it?
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Sep 10, 2010
Recently I have been having issues with viewing my email messages in the Yahoo Mail App. When I open some messages all is see is line after line of code instead of the message text. It doesn't seem to matter what the source email is (gmail, hotmail, etc). Some emails are ok some are not. Anyone else have this problem? Any fixes?
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Nov 16, 2010
I want to do something like that. For example, I have a textview with String
Alibaba love Mary so muck. In that String alibaba and Mary have a event to open something but I can't know how to use event for Mary and Alibaba seperately
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Oct 14, 2010
I am initiating the design of an application that would require an Android phone to connect to another Android phone via Ad-Hoc networking with or w/o security. I would like to know if Android supports ad-hoc networking. I would also like to know what is the average range of the wifi signal from an Android handset point-to-point with no obstructions. I cannot find any information about this on the web.
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May 2, 2010
I have a droid and the range I get with wifi compared to a laptop is horrible. The networks I have tested on are all 802.11g. Is this just normal because of the antenna size on the droid or is there something I can do to improve it? I feel like I have to be right next to the access point to have a good connection.
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Jul 1, 2010
I was thinking how awesome it would be to create a to-do list at home, set the location, then have it pop up when you get into the set range. Does this exist already?
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Jul 29, 2010
Does anyone have any dialogs that will allow a user to pick a number within a certain range? It seems like this would be a fairly common need, but I can't find a common dialog for it and I'd rather not have to spend the time creating my own. Any help?
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Jun 12, 2010
I realize that it would probably require boosting antenna power and thus reduce battery life but, if I am prepared to accept that, can I programatically extend wifi range?
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Nov 22, 2010
How can I read GPS raw data, to be more specific I need the saellites pseudo range. This data is not available in NMEA format.
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Nov 22, 2010
I am struggling from long time to get this done i know some of the solutions in sql but couldn't find any of them from sqlite.
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Aug 27, 2010
I'm trying to create an android application which will generate random series of values (integer numbers in this case) in a given range (but NOT equal between them) and display them in a simple TextView.
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Jun 5, 2009
I have written some app which connects to server and fetches some data. Here is the response I am getting. HTTP/1.1 416 Requested Range Not Satisfiable Content-Type: text/html Content-Length: 0 Expires: Fri, 05 Jun 2009 07:29:49 GMT Cache-Control: max-age=0, no-cache, no-store Pragma: no-cache Connection: keep-alive X-N: I am not understanding this. I just established a socket connection. I am not understanding is it my coding problem or server problem.
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Jun 24, 2010
I need to create a random character generator that return a single character. The character should range within the letters of the alphabet, numbers 0 through 9, and some characters like.
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Jul 14, 2010
I have a ListView that contains an Image on the left of two vertically-oriented TextViews using a RelativeLayout. When both TextViews have text it looks fine. Sometimes the TextView on the bottom won't have any text, and the problem is that the entire layout is several pixels above where it should be because it still reserves that space for text when there isn't any making the entire list have annoying blank gaps. I remember seeing an example of where someone made the layout not reserve the space, but I can't remember how he did it.
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Jul 15, 2009
I am trying to resolve following task: smooth change of brightness from 100% to 0%, but can't gain effect of smoothness. Want to emphasize that I am using following approach of brightness change. The recommended one.
WindowManager.LayoutParams lp = window.getAttributes();
lp.screenBrightness = floatPercent;
// 0 - 1 window.setAttributes(lp);
Well, it obviously works, but not smooth. I will describe logic. I have a thread that changes brightness:
while (isRunning()) { Thread.sleep(sleepTime);
spentTime+=sleepTime;
view.post(new Runnable() {
public void run() {
changeBrightness();
} } );
}
We have duration of brightness change, for example 10 seconds. I calculate next value of floatPercent (see code snippet above) the way, sleepTime should always be less than 50ms. So looks like it had to be smooth. But I always get not smooth transition. It relates specially the range of 0% - 5% of brightness. Smoothness is completely lost on this brightness range. What can you propose?
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Apr 24, 2009
Are there any video players that can handle AVI or a full range of mpeg formats seamlessly?
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Nov 21, 2010
I have just recently moved from Nokia E75 to HTC Desire, and there are lots of stuff on the E75 that I will never miss... But, there are a couple of things I am missing very much, tho. One thing was a very clever feature that saved a lot of battery... On my HTC Desire I have to leave wlan enabled at all time for the phone to utilize wireless at all, and I can see that it's consuming approx 20% of the battery power - even if no apps or widgets are accessing internet.
But on the Nokia E75 it's very different... The wlan is switched off by default, so whenever an application on the E75 needs a data connection (internet), it will quickly enable wlan and check to see if there are any networks nearby it can access, and then disable it again if it doesn't find any. (If no wlan access point is detected, it will go online using the mobile data connection automatically instead)
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Aug 2, 2010
I have got a HTC EVO for myself n facing a problem with its Wi-Fi range.. As soon i get out from the room where i hav got router installed, it loses all its signals.. way to improve its range?
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Aug 31, 2010
Can we align our text line by line(I mean whatever the text we have selected that should be aligned instead of the whole text) in android text-view dynamically!
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