我希望能够根据 2 of 3 中的输入来计算一些东西EditText
。例如:我在 ET 1 和 2 中进行输入 -> 我在 ET 3 中进行计算。ET 1 和 3 -> 在 ET 2 中进行计算...等等。
我让它与 2 一起工作,EditText
但与 3 我得到一个 StackOverFlowError。
private class GenericTextWatcher implements TextWatcher {
private View view;
private GenericTextWatcher(View view) {
this.view = view;
}
public void beforeTextChanged(CharSequence charSequence, int i, int i1,
int i2) {
}
public void onTextChanged(CharSequence charSequence, int i, int i1,
int i2) {
}
public void afterTextChanged(Editable editable) {
switch (view.getId()) {
case R.id.liter_input:
try {
if (amount_widget.getText().toString().equals(" ") == false
|| literPrice_widget.getText().toString()
.equals(" ") == false
|| price_widget.getText().toString().equals(" ") == false) {
double editTextCalc = Double.parseDouble(amount_widget
.getText().toString())
* Double.parseDouble(literPrice_widget
.getText().toString());
editTextCalc = Math.round(editTextCalc * 100) / 100.0;
price_widget.setText(String.valueOf(decimalFormat
.format(editTextCalc)));
}
} catch (Exception e) {
// TODO: handle exception
}
break;
case R.id.literprice_input:
try {
if (amount_widget.getText().toString().equals(" ") == false
|| literPrice_widget.getText().toString()
.equals(" ") == false
|| price_widget.getText().toString().equals(" ") == false) {
double editTextCalc = Double.parseDouble(amount_widget
.getText().toString())
* Double.parseDouble(literPrice_widget
.getText().toString());
editTextCalc = Math.round(editTextCalc * 100) / 100.0;
price_widget.setText(String.valueOf(decimalFormat
.format(editTextCalc)));
}
} catch (Exception e) {
// TODO: handle exception
}
break;
case R.id.price_input:
try {
if (amount_widget.getText().toString().equals(" ") == false
|| literPrice_widget.getText().toString()
.equals(" ") == false
|| price_widget.getText().toString().equals(" ") == false) {
double editTextCalc = Double.parseDouble(amount_widget
.getText().toString())
/ Double.parseDouble(price_widget.getText()
.toString());
editTextCalc = Math.round(editTextCalc * 100) / 100.0;
literPrice_widget.setText(String.valueOf(decimalFormat
.format(editTextCalc)));
}
} catch (Exception e) {
// TODO: handle exception
}
break;
}
}
}