@Override
public boolean onKey(View view, int keyCode, KeyEvent keyEvent) {
switch (keyCode) {
case KeyEvent.KEYCODE_NUMPAD_ENTER:
case KeyEvent.KEYCODE_ENTER:
if (keyEvent.getAction() == KeyEvent.ACTION_UP) {
mCurrentButton = mEqualButton;
onEquals();
}
// ignore all other actions
return true;
}
return false;
}
public void onButtonClick(View view) {
mCurrentButton = view;
switch (view.getId()) {
case R.id.eq:
onEquals();
break;
case R.id.del:
onDelete();
break;
case R.id.clr:
onClear();
break;
case R.id.parentheses:
mFormulaEditText.setText('(' + mFormulaEditText.getCleanText() + ')');
break;
case R.id.fun_cos:
case R.id.fun_sin:
case R.id.fun_tan:
case R.id.fun_ln:
case R.id.fun_log:
case R.id.fun_det:
case R.id.fun_transpose:
case R.id.fun_inverse:
case R.id.fun_trace:
case R.id.fun_norm:
case R.id.fun_polar:
// Add left parenthesis after functions.
insert(((Button) view).getText() + "(");
break;
case R.id.op_add:
case R.id.op_sub:
case R.id.op_mul:
case R.id.op_div:
case R.id.op_fact:
case R.id.op_pow:
mFormulaEditText.insert(((Button) view).getText().toString());
break;
default:
insert(((Button) view).getText().toString());
break;
}
}