Question

I am having quite a simple problem.
I want to take an numerical input in an activity then display that on another activity.

input.java

Button ok = (Button) findViewById(R.id.inputok);
ok.setOnClickListener (new OnClickListener ()
{

    public void onClick(View vie)
    {EditText et = (EditText) findViewById(R.id.ei);
    a = Integer.valueOf(et.getText().toString());


        Intent intent= new Intent (input.this, answer.class);
     intent.putExtra("i", a );
    startActivity(intent);
    }
} );      

Now before displaying it on another i want to perform some action on the integer, say +1 to it.

answer.java

 Bundle extras = getIntent().getExtras(); 
int a = extras.getInt("i");
++a;
TextView TV= (TextView) findViewById(R.id.TV);
TV.setText(a);

When i try to run this, the app closes, is there something wrong with the code??

Answer 1

May i hope the problem is to set the integer value in an setText();

Try this,

   int intent_data = getIntent().getExtras().getInt("i"); // to Get the data

     // Now increment the value.
     int newVal= intent_data+1; // or intent_data++;
     TextView TV= (TextView) findViewById(R.id.TV);
      TV.setText(""+newVal);

or you can use,

 int intent_data = getIntent().getExtras().getInt("i"); // to Get the data

         // Now increment the value.
         int newVal= intent_data+1;
         TextView TV= (TextView) findViewById(R.id.TV);

      String s = String.valueOf(newVal);
    TV.setText(s);