Is it possible to develop something like this in Android?:
Note that the length of any of the three text components is dynamic.
I pretend to receive a first String (that might be multilined) then an input field for the user, and finally, another String (can also be multilined). I want them all to seem like they belong to the same sentence.
I'm not asking for the full code, just some clues.
Thanks in advance.
I finally achieve it by using FrameLayouts and with the help of this posts:
Android: measureText() Return Pixels Based on Scaled Pixels
Get current visible text in textview
How to find android TextView number of characters per line?
Related
I'm going to make an app for which I need to know how does android split the text in it's TextView.Because of the splitting the text doesn't go out of the window it retains in side a bound.
The help what I need is like the image
In the image the text didn't overlap with the triangle. So I need a sample code spinnet which will help me to do that. Or idea to how to do it will also help me.
One of the easiest way, I think - split one TextView on several ones (for example - 3, or more if you need precise approximation).
I am trying to have a custom EditText based on the background that i am using for. The Background image has some spaces between the entry areas so i need to have some space between the characters(kerning) to fit them right in. So for example after every character the user enters, i need to put 4 whitespace after that.
I couldn't find any solution for this on the net so far, some people suggested TextWatcher, but i couldn't manage to make it work as i want it too.
Can someone help me about it?
Thanks
I have you considered using a custom font? Some font types are made to stretch out or shrink or have empty spaces. With so many different fonts available online, you can definitely find something. You can also make your own with a software. It might be time consuming if you start the lettering from scratch. I'm not 100% sure if it'll fit exactly to your background, but it's idea that you can consider.
If it doesn't fit, I supposed you can always customized the background to fix your font too. Here's the code for those who might want to use custom fonts in their app too.
Typeface myfont = Typeface.createFromAsset(getAssets(),
"fonts/Blocks2.ttf");
myeditText.setTypeface(myfont);
The font is in the asset folder under another folder called fonts.
This question is related to How to change letter spacing in a Textview?
As shown at this issue: android format edittext to display spaces after every 4 characters a solution might be to insert spaces with Java code...
You need to use TextWatcher to achieve visual purpose spaces.
And use any simply split string by space logic to join it back or loop
through the entire string per character wise and eliminate (char) 32
from the string
As far as i know actual character spacing is not possible, though i'd love to use that myself as well.
Another option might be to use a custom font with the character spacing included.
First let me say that I'm very new to android development (although I have a good understanding of the basics of java), and I am building a magazine reader app for a campus publication I work for.
I want to display each article using a ViewPager widget. I'm going to build a java program which enables the magazine editor to post articles in .txt format onto a server, along with images associated with each, and have the android app periodically download these articles to a local folder.
I'm a little confused about how to construct the views for each ViewPager from the text files. Somehow my logic needs to determine the size of the screen running the app, in order to know how many words can fit on each screen.
Is this right, or am I fundamentally misunderstanding ViewPager somehow? If so, how might I structure the program to configure the views dynamically based on the txt + images given to it?
From what I understand, each page will contain as much of the article as possible, and when the user selects the article they will be able to see the entire thing. Something like this, but so it fills up the entire screen?
If this is the case, you have two options here:
Just ellipsize the textview so that it ends with a "..." at the end. Probably the preferred solution.
Resize the TextView to fit all your text (Auto Scale TextView Text to Fit within Bounds).
EDIT:
Here's a different interpretation of your question.
From what I understand, you're trying to have something like an eBook reader with an undefined number of pages; kind of what Flipboard does:
Basically, once all the text fills in the entire area you want to have it continue to the next page.
The easiest way to do this, if you do not need native performance, would be to just use a WebView, split the text across several columns, and have only one column be visible at a time.
However, it is certainly possible to calculate how tall the entire text would be and then split it up accordingly; i.e. Pagination in Android TextView
It seems similar questions have been asked and addressed: Splitting a TextView into multiple TextViews relative to screen height (see the accepted answer).
Is there a way to limit the input length of a Android edit text field using some sort of physical parameters (i.e. inches, pixels, etc.) I do not want to limit the field by character number.
Thanks for the help!
you can use android:maxWidth="100dp" but that is going to set the max width of the View itself, and will not affect how many characters are allowed to be typed into it.
I do not beleive there is an easy way to accomplish what you want. The only thing I can think of is use a TextWatcher and dynamically determine how many characters will fit in the the size that you are wanting (which will be different for different devices). That is still basically "limiting the field by character number" though which you state you don't want to do.
Can you elaborate on why you are wanting to do this? Perhaps there is a better way to solve the overall challenge that you are facing.
You want to add a text changed listener (TextWatcher). In your listener you'll need to measure the size of the font, and the pixel density of the screen, and the number of characters. Multiply all of those together and you should know how physically long the text is (with a few caveats).
Having said that, this seems like a weird restriction and I'm not sure why you want this. Every device is going to have a different screen size, so measuring your interface in inches is typically a bad idea.
You could find how how many M's will fit in the printed form and then use EditText.SetMaxEms To make sure the input will be printable on the form.
Try this on your EditText
android:maxLength="10"
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.
Thanks in advance
Thank you for your answer.
Currently I am developing a small text based game to become acquainted with the Android API. For that reason I need to know exactly how much characters can be displayed in the visible area of a TextView widget. I saw an example of Paint but wanted to know if there are better solutions.
Ideally, you design your GUI such that it does not matter. For example, you can use android:ellipsize to deal with strings that are too long for the available space.
There are classes in the 2D drawing APIs (e.g., Paint) that seem to be tied into this, but it does not look like much fun.
You can use ellipsize property but there has been a bug that has been filed on the same
http://code.google.com/p/android/issues/detail?id=2254
On the bottom of this page you could find an alternate approach which can draw exactly the number of lines on a given space...