Android EditText convert string to integer error

Question

My application forced closed when I try to convert the editText String to integer and I don't know why. I think i'm converting it right. What supposed to be the problem? Thanks in advance.

edX = (EditText) findViewById (R.id.dh);

path.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View v) {
                String holder = edX.getText().toString();
                int a = Integer.parseInt(holder);
                Toast.makeText(getApplicationContext(), a, Toast.LENGTH_SHORT).show();
            }   
        });

I can't copy paste my log cat at android.os.Handler.handleCallback(Handler.java:800) at pathfinding.thesis.algorith.PathSetup$1.onClick(PathSetup.java:73) — Kyoshiro
– Kyoshiro, Commented Feb 19, 2015 at 4:51
follow the below given answers then or delete your question. — M D
– M D, Commented Feb 19, 2015 at 4:52

ρяσѕρєя K · Accepted Answer · 2015-02-19 04:49:43Z

2

Probably getting :

Resources$NotFoundException: String resource ID

Because Toast makeText takes CharSequence as second parameter.

Use String.valueOf to get String representation of int:

Toast.makeText(getApplicationContext(), 
     String.valueOf(a), Toast.LENGTH_SHORT).show();

answered Feb 19, 2015 at 4:49

ρяσѕρєя K

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ρяσѕρєя K Over a year ago

Why Down-Vote ? please kindly leave comments with down-vote to improve my answer and for learn .Thanks

KOTIOS · Accepted Answer · 2015-02-19 04:50:06Z

1

Modify your toast as below :

Toast.makeText(getApplicationContext(), String.valueOf(a), Toast.LENGTH_SHORT).show();

answered Feb 19, 2015 at 4:50

KOTIOS

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Comments

Gaganpreet Singh · Accepted Answer · 2015-02-19 05:06:02Z

You are facing

android.content.res.Resources$NotFoundException: Resource ID #0x0

Use my code below , It will definetely solve your problem.

path.setOnClickListener(new OnClickListener(){
        @Override
        public void onClick(View v) {
            String holder = edX.getText().toString();
            int a=-1;
            try {
                a = Integer.parseInt(holder);
            } catch (NumberFormatException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            if(a==-1){
                Toast.makeText(getApplicationContext(), "INVALID NUMBER INPUT", Toast.LENGTH_SHORT).show();
            }else{                  
                Toast.makeText(getApplicationContext(), a+"", Toast.LENGTH_SHORT).show();
            }
        }   
    });

The hack is , Toast class can only accept integer resource ids and string object . I converted int to String :) .

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