How to Get value from textview Results to Alertdialog

Question

i want when i click the button "mButtonadd" that show an alertdialog and on the alertdialog i want to get the value of "mTextViewResult" ( this is an simple multiplication )

private EditText mEditText1;
private TextView mTextViewResult;
private Button mButtonAdd;
int a;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_builderdaily);



    mEditText1 = findViewById(R.id.editText1);
    a = 15;
    mTextViewResult = findViewById(R.id.textView);
    mButtonAdd = findViewById(R.id.button);

    mButtonAdd.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (mEditText1.getText().toString().length() == 0) {
                mEditText1.setText("0");
            }

            int num1 = Integer.parseInt(mEditText1.getText().toString());
            final int sum = num1 * a;
            mTextViewResult.setText(String.valueOf(sum));

        }

    });

    mButtonAdd.setOnClickListener(new View.OnClickListener() {
        public void onClick(View view) {

            AlertDialog alertDialog = new AlertDialog.Builder(BCdaily.this).create(); //Read Update
            alertDialog.setTitle("hi");

            alertDialog.setButton("Continue..", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    // here you can add functions
                }
            });

            alertDialog.show();  //<-- See This!
        }


    });

}

}

i tried to make this code ( alertDialog.setMessage(mTextViewResult.setText(String.valueOf(sum)); ) but didn't work.

Answer 1

If I understood your actual problem then Just add one click listener like this :

  mButtonAdd.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (mEditText1.getText().toString().length() == 0) {
                mEditText1.setText("0");
            }

            int num1 = Integer.parseInt(mEditText1.getText().toString());
            final int sum = num1 * a;
            String sumValue = String.valueOf(sum);
            mTextViewResult.setText(sumValue);

            AlertDialog alertDialog = new AlertDialog.Builder(BCdaily.this).create(); //Read Update
            alertDialog.setTitle("hi");
            alertDialog.setMessage(sumValue);

            alertDialog.setButton("Continue..", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    // here you can add functions
                }
            });

            alertDialog.show();  //<-- See This!

        }

    });

Answer 2

You have to change alertDialog.setMessage(mTextViewResult.setText(String.valueOf(sum));

to

mTextViewResult.setText(String.valueOf(sum);
alertDialog.setMessage.setText(mTextViewResult.getText().toString());

And another things is that you are using two listener of same Button . Do it in same method. You are using in first onClick() to set text in TextView and second onCLick() showing alertDialog. But You have to use both things in one Onclick method not two. Because your have one button