Perform Addition after user enter values in Edit Text through Button - android

When a user put the values in the edit text box, then how to Addition all the values together through Button and show their answer in another text box. For example if User put values 123456 in Edit Text then perform Addition on Edit text ( Answer 1+2+3+4=10) and put answer on other Text view.

Related

Can you set EditText on append mode after all text have full selection?

I have a weird scenario. I have an EditText
val editText = findView...
editText.setText("Hello") // prefill some text
editText.setSelection(0, editText.text.length) // select the full length in the selection
Now, the editText would look like Hello with the entire word highlighted. If the user type something, say World, it would replace the entire selection so now editText only have the new entered word World.
Question is, is there a way that instead of replacing the prefilled selection, when user enter text, it will append the text and continue and expand the selection. So in the above scenario, when user type in World after the prefill, it will be HelloWorld with everything in the selection?
You should use textWatcher. Every character you add, you should change selection and add new character to your selection.
add an event on edit text change
when the event is hit remove the selection
editText.clearFocus();
and position the cursor at the end
editText.getText().length()
and when the new character is entered do the selection again
editText.setSelection(0, editText.text.length)
i hope you get the idea.

Basic4Android - Get numeric value from Edit Text box?

I have an Edit Text box, with the Input Type set to DECIMAL_NUMBERS. I have declared a global Int that I want to add the value entered in the edit text box to.
I have generated an EnterPressed member for the Edit Text box, but don't know how to access the value entered in the box so I can use it.
Also, do I need to clear the box manually? If so, how do I do that?
Small steps, big journeys. :)
Edit:
Okay, your doofus alarms must have being going off there. :)
It turns out that to get the value from an Edit Text box called eg MyNumber, all I need to do is access MyNumber.Text
Also to clear the box, MyNumber.Text = "" after retrieving the value entered works.
Ahem. :)

Edit text view issue

Hi friends
I have an editable text box with a default value like to display to the user like "entername". If the user touches the edit box, I want to clear the value of edittext box and show the virtual keypad to the user, and if the user presses the enter key, only in the edit text box, I have to start another activity. How do I do this?
Hi in android:hint at the type of key pressing only it clear value I want to on touch in edit text box clear value and show virtual keypad to user. How do I do this?
Thanks
What?
I really don't understand what you're asking, but it seems like you might be trying to do a hint? Rather than setting an onTouchEvent listener, add a android:hint="What to do" attribute to your EditText.
U use the following code
EditText EditTextName=findViewById(R.id.EditText01);
((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE)).showSoftInput(EditTextName), 0);
use this code in ontouchListener of EditText
Mohan if I am correct you have two questions here
How to display a hint in an edit box
How get some data from a web service
For the first question you can use android:hint="Enter Name"
For the second one you need to give us more info on what you are trying to do

Android EditText background text

Is there a way to set the background text of an EditText? for instance, I have a login screen with 2 EditText views, one for username and one for password. I want the text "Username" and "Password" be written inside the EditText, and once the user touches those the text disappears but once user deleted his own entry, text re-appears.
Is there a property for that or should I implement this on my own with events and stuff?
The hint property will take care of that for you.
Use hint property, or setHint method.

Select Text In Android

Is it Possible to Display some text say a story, in an ANDROID app which also enables the user to select some text and perform some operations on that text..
the main idea is to display some text and when the user selects some text(a word or a sentence) i need to get that text for some further operation on that text.
we cant use text view as you cant select text in textview,and we cant use editview because the user should not be able to edit the contents of the text.
Why not display the text in a WebView and enable text selection?
It works pretty well in CodePad, which is open source so you can have a look at the code here.
My first try would be to display this text in a normal TextView. Then I would provide two or three buttons to implement the selection of a part of the text. For example 1 Button to start and end selection and 2 Buttons with arrows for increasing/decreasing the part of the selection.
To highlight the part of the text which is selected, I would for example color this part of the text in a different color.
Coloring of text can be either done by using Spannable or the HTML class.

Categories

Resources