Question

我有三个EditText。我想听取每个输入的变化，并在给定输入值的情况下自动更改它们。但是当有变化时，听众递归地开始互相改变，我抓住了java.lang.StackOverFlow。我该怎么办？

我在 afterTextChanged（可编辑的）中对ediText进行了更改。

priceEditText.addTextChangedListener(new TextWatcher() {
                public void afterTextChanged(Editable s) {
                    try {
                        if (priceForLiterEditText.getText().length() > 0 && isPriceFocused) {
                            double summ = Double.valueOf(priceEditText.getText().toString());
                            double literPrice = Double.valueOf(priceForLiterEditText.getText().toString());
                            summ = summ / literPrice;
                            summ = Math.round(summ * 100);
                            summ /= 100;
                            fuelLitersAmountEditText.setText(String.valueOf(summ));
                            fuelLitersAmountTextView.setText(String.valueOf(summ) + " " + currentCar.getCurrencyName(getApplicationContext()));
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }

                public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                }

                public void onTextChanged(CharSequence s, int start, int before, int count) {
                }
            });

ATAL EXCEPTION：主要 java.lang.StackOverflowError的在android.graphics.Paint.set（Paint.java:481）在android.text.TextPaint.set（TextPaint.java:61）在android.text.TextLine.handleRun（TextLine.java:1091）在android.text.TextLine.measureRun（TextLine.java:599）在android.text.TextLine.measure（TextLine.java:462）在android.text.Layout.getHorizontal（Layout.java:852）在android.text.Layout.getHorizontal（Layout.java:829）在android.text.Layout.getPrimaryHorizontal（Layout.java:813）在android.widget.TextView.getFocusedRect（TextView.java:5602）在android.view.FocusFinder.findNextFocusInAbsoluteDirection（FocusFinder.java:231）在android.view.FocusFinder.findNextFocus（FocusFinder.java:163）在android.view.FocusFinder.findNextFocus（FocusFinder.java:94）在android.view.FocusFinder.findNextFocus（FocusFinder.java:65）在android.view.ViewGroup.focusSearch（ViewGroup.java:680）在android.view.ViewGroup.focusSearch（ViewGroup.java:682）在android.view.ViewGroup.focusSearch（ViewGroup.java:682）在android.view.ViewGroup.focusSearch（ViewGroup.java:682）在android.view.ViewGroup.focusSearch（ViewGroup.java:682）在android.view.ViewGroup.focusSearch（ViewGroup.java:682）在android.view.ViewGroup.focusSearch（ViewGroup.java:682）在android.view.ViewGroup.focusSearch（ViewGroup.java:682）在android.view.ViewGroup.focusSearch（ViewGroup.java:682）在android.view.ViewGroup.focusSearch（ViewGroup.java:682）在android.view.View.focusSearch（View.java:6456）在android.widget.TextView.onCreateInputConnection（TextView.java:6245）在android.view.inputmethod.InputMethodManager.startInputInner（InputMethodManager.java:1168）在android.view.inputmethod.InputMethodManager.restartInput（InputMethodManager.java:1119）在android.widget.TextView.setText（TextView.java:4019）在android.widget.TextView.setText（TextView.java:3927）在android.widget.EditText.setText（EditText.java:104）在android.widget.TextView.setText（TextView.java:3902） at com.DriverNotes.AndroidMobileClientTest.RefillActivity $ 9 $ 2.afterTextChanged（RefillActivity.java:866）在android.widget.TextView.sendAfterTextChanged（TextView.java:7986）在android.widget.TextView.setText（TextView.java:4114）在android.widget.TextView.setText（TextView.java:3927）在android.widget.EditText.setText（EditText.java:104）在android.widget.TextView.setText（TextView.java:3902） at com.DriverNotes.AndroidMobileClientTest.RefillActivity $ 11 $ 2.afterTextChanged（RefillActivity.java:1012）在android.widget.TextView.sendAfterTextChanged（TextView.java:7986）在android.widget.TextView.setText（TextView.java:4114）在android.widget.TextView.setText（TextView.java:3927）在android.widget.EditText.setText（EditText.java:104）在android.widget.TextView.setText（TextView.java:3902） at com.DriverNotes.AndroidMobileClientTest.RefillActivity $ 9 $ 2.afterTextChanged（RefillActivity.java:866）在android.widget.TextView.sendAfterTextChanged（TextView.java:7986）在android.widget.TextView.setText（TextView.java:4114）在android.widget.TextView.setText（TextView.java:3927）在android.widget.EditText.setText（EditText.java:104）在android.widget.TextView.setText（TextView.java:3902） at com.DriverNotes.AndroidMobileClientTest.RefillActivity $ 11 $ 2.afterTextChanged（RefillActivity.java:1012）在android.widget.TextView.sendAfterTextChanged（TextView.java:7986）在android.widget.TextView.setText（TextView.java:4114）在android.widget.TextView.setText（TextView.java:3927）在android.widget.EditText.setText（EditText.java:104）在android.widget.TextView.setText（TextView.java:3902） at com.DriverNotes.AndroidMobileClientTest.RefillActivity $ 9 $ 2.afterTextChanged（RefillActivity.java:866）在android.widget.TextView.sendAfterTextChanged（TextView.java:7986）在android.widget.TextView.setText（TextView.java:4114）在android.widget.TextView.setText（TextView.java:3927）在android.widget.EditText.setText（EditText.java:104）在android.widget.TextView.setText（TextView.java:3902）在com.DriverNotes.AndroidMobileClientTest.RefillActivity $ 11 $ 2.afterTextChanged（RefillActivity.java:1012）

Answer 1

你有TextChangedListeners互相触发。您应该添加一个检查，仅在用户输入指向的任何字段上执行此操作。

com.DriverNotes.AndroidMobileClientTest.RefillActivity$11$2.afterTextChanged(RefillActivity.java:1012)
com.DriverNotes.AndroidMobileClientTest.RefillActivity$9$2.afterTextChanged(RefillActivity.java:866)
com.DriverNotes.AndroidMobileClientTest.RefillActivity$11$2.afterTextChanged(RefillActivity.java:1012)
com.DriverNotes.AndroidMobileClientTest.RefillActivity$9$2.afterTextChanged(RefillActivity.java:866)
...

更改editText时StackOverFlow

1 个答案: