Android Question Changing a text to a numerical value

[Yves Mazzon]

Hello all,
I'm new with B4a so please bear with me. In my program the operator enter a value let say 2.65 in the edit text box, how can I extract the numerical value from the text to be able to use it in an equation?

many thanks.
Yves

 

[Erel]

1. Make sure that the string is a valid number.
2. Assign it to a floating point variable.

Dim num As Double
If IsNumber(EditText1.Text) Then
 num = EditText1.Text
End If

 

[Yves Mazzon]

1. Make sure that the string is a valid number.
2. Assign it to a floating point variable.

Dim num As Double
If IsNumber(EditText1.Text) Then
num = EditText1.Text
End If

Many thanks Erel,
So the if condition is just to make sure a numerical value is entered. I suppose the dot of 2.65 example will be taken as a fraction too.
Regards,

Yves

 

[klaus]

If the user is supposed to enter only numbers you should set
EditText1.InputType = EditText1.INPUT_TYPE_DECIMAL_NUMBERS
to limit the authorized characters.

EDIT: changed INPUT_TYPE_NUMBERS to INPUT_TYPE_DECIMAL_NUMBERS

 

[Yves Mazzon]

If the user is supposed to enter only numbers you should set
EditText1.InputType = EditText1.INPUT_TYPE_NUMBERS
to limit the authorized characters.

Many thanks Klaus,
So I will have to assign a value to input type number to INPUT_TYPE_NUMBERS ?
something like:
dim INPUT_TYPE_NUMBERS as int
INPUT_TYPE_NUMBERS = 4 'This should take care of the dot too for a value for example of 2.65?

Regards,

Yves

 

[LucaMs]

... or INPUT_TYPE_DECIMAL_NUMBERS

 

[klaus]

You are right, it must be INPUT_TYPE_DECIMAL_NUMBERS !
INPUT_TYPE_NUMBERS allows only integers.
Changed it in post #4.