Question

I have two Edit Text fields in my application,if i enter 50 in first edit Text then in the second edit text i want to give permission to enter values less than 50 when the user enters a value in the second edit text, i want to give alert to the user if it is bigger than first edit text value.
How can i do this,means i need to check and show the alert when he enter the values i don’t want to show the alert when we press any other fields…
For example:in field 1 if user enter 35
in field2 he has enter value less than 35 only…

Answer 1

initialize both edittext’s, lets called them myEditText1 and myEditText2

in myEditText2 set a listener, there should be some kind of listener for when the text changes. Look for something like setOnTextChangedListener, here is how it would be used (this is pseudocode)

myEditText2.setOnTextChangedListener(new OnTextChangedListener(){

    @Override
    public void OnTextChanged(View v)
    {
        int i = Integer.valueOf(myEditText1.getText().toString());

        int j = Integer.valueOf(myEditText2.getText().toString());

        if(j >= i)
        {
              myEditText2.setText("");  //this automatically sets the editText2 field back to empty
        }
     }

   });

this will only allow the user to enter numerical values lower than the value in the first edit text.

But you need to make sure that the inputType: of both of your editText fields is set to numeric.