CODEWITHSUNDEEP
android
nick
nick

Reputation: 63

Reset code for EditText and TextView for android

I'm new in programming. I did a simple android app which ask user to put 2 numbers, do calculations, display the answer by clicking calculate button. Now I'm trying to set up reset button to clear all the fields. Checked for the solution on stack overflow, but still cannot figure out how to do it. This is my code:

 public void calculate(View view)
 {

    EditText number1 = (EditText)findViewById(R.id.num1ID);
    EditText number2 = (EditText)findViewById(R.id.num2ID);

    Double num1Value = Double.parseDouble(number1.getText().toString());
    Double num2Value = Double.parseDouble(number2.getText().toString());

    Double resultValue = num1Value - num2Value;
    TextView resultDisplay = (TextView)findViewById(R.id.resultID);

    resultDisplay.setText(Double.toString(resultValue));
    }

Thank you.

Upvotes: 6

Views: 739

Answers (7)

manikanta gokavarapu
manikanta gokavarapu

Reputation: 39

OnClick of Reset Button set the setText of EditText to Empty Strings. You can follow the below link it is useful for beginners http://www.mkyong.com/tutorials/android-tutorial/

Upvotes: 1

Praveen
Praveen

Reputation: 91175

edittext1.setText(StringUtility.EMPTY);. It will help.

Upvotes: 2

Venkatesh Selvam
Venkatesh Selvam

Reputation: 1412

Exact code for your program.

public void calculate(View view) {

  EditText number1 = (EditText)findViewById(R.id.num1ID);
  EditText number2 = (EditText)findViewById(R.id.num2ID);
  Button B_reset=(Button)findViewById(R.id.bReset);
  // create a button on your Layout for Reset as "bReset"

  Double num1Value = Double.parseDouble(number1.getText().toString());
  Double num2Value = Double.parseDouble(number2.getText().toString());

  Double resultValue = num1Value - num2Value;
  TextView resultDisplay = (TextView)findViewById(R.id.resultID);

  resultDisplay.setText(Double.toString(resultValue));


//reset code 
  B_reset.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View view) {
      number1.setText(""); // reset the EditText number1
      number2.setText(""); // reset the EditText number2
      resultDisplay.setText(""); // reset the Textview resultDisplay
      }
  });

 }

Upvotes: 2

Hugo Mallet
Hugo Mallet

Reputation: 210

Do you want reset your edittext ?

private void resetNumbersFields() {
  number1.setText("");
  number2.setText("");
  resultDisplay.setText("");
  // if you want you can add setHint to add hint to your EditText when your field is empty
}

I hope that help you

Upvotes: 2

Andy Joyce
Andy Joyce

Reputation: 2832

Have a method like this 

public void resetTextViews() {
      number1.setText("");
      number2.setText("");
      resultDisplay.setText("");
}

Then just set an on click listener on your button that calls that method.

Upvotes: 3

Prasanna Anbazhagan
Prasanna Anbazhagan

Reputation: 1735

There is no method in EditText to clear the data. If you want to clear the data you have to set

.setText("");

In android documentation itself there is no option to reset the field.

Upvotes: 2

Tran Vinh Quang
Tran Vinh Quang

Reputation: 595

Just add button resetButton to layout

Button resetButton = (Button) findViewById(R.id.btnReset); 
    resetButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            number1.setText("");
            number2.setText("");
            resultDisplay.setText("");
        }
    });

Upvotes: 4

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