[英]EditText.getText().toString() in a fragment returns empty
我正在嘗試在工作的片段中獲取EditText.getText()。toString(),我已經閱讀了有關此問題的所有其他問題,但找不到解決方案:我在其中有EditText.getText()。toString()放大視圖后,使用確認按鈕的onClick方法,我已經檢查了按鈕的ID是否正確,但是沒有找到錯誤。 在logcat中,我可以看到在有問題的行之后正確調用了方法saveWord-只有應該用editText填充的String始終為空。 如果將硬編碼的字符串放在變量上,它將按預期工作。
如果有人可以幫助,將非常高興! 可能只是我忽略的一個愚蠢的錯誤?
這是我的代碼:
public class BingoAddNewFragment extends Fragment {
private static final String LOG_TAG = BingoDataManager.class.getSimpleName();
View v;
public static final String DEFAULT_EDIT_FRAGMENT_TAG = "editFragmentTag";
private Button mConfirmButton;
EditText mAddWords;
String newWord;
String bWord1 = "";
String bWord2 = "";
String bWord3 = "";
String bWord4= "";
String bWord5= "";
String bWord6= "";
String bWord7= "";
String bWord8= "";
String bWord9= "";
String bWord10= "";
String bWord11= "";
String bWord12= "";
String bWord13= "";
String bWord14= "";
String bWord15= "";
String bWord16= "";
String[] bWord = {bWord1, bWord2, bWord3, bWord4, bWord5, bWord6, bWord7, bWord8, bWord9,
bWord10, bWord11, bWord12, bWord13, bWord14, bWord15, bWord16};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
v = inflater.inflate(R.layout.add_bingo_fragment, container, false);
//some other stuff
mConfirmButton = v.findViewById(R.id.button_confirm);
mAddWords = v.findViewById(R.id.editText_addWords);
mConfirmButton.setOnClickListener (new View.OnClickListener() {
@Override
public void onClick(View v) {
//The next line is not working (everything else seems fine) ->
newWord = mAddWords.getText().toString();
Log.d(LOG_TAG, "Begriff: " + newWord + " wird übergeben");
saveWord (newWord);
}
});
mSaveButton = v.findViewById(R.id.button_save_bingo);
mSaveButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
saveBingo();
}
});
public String[] saveWord (String newWord) {
Log.d(LOG_TAG, "Wort: " + newWord + " entgegengenommen.");
for (int i=0; i<16; i++) {
Log.d(LOG_TAG, "i steht bei: " +i);
if (bWord[i].equals("")) {
bWord[i] = newWord;
Log.d(LOG_TAG, "Word als " + (i+1) + ". Begriff gespeichert.");
break;
}
}
return bWord;
}
這是我的布局文件的一部分:
<?xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/colorLightBlue"> <EditText android:id="@+id/editText_addWords" android:layout_width="206dp" android:layout_height="40dp" android:layout_marginStart="16dp" android:layout_marginTop="8dp" android:ems="10" android:hint="@string/input_word" android:inputType="textPersonName" android:textColor="@color/colorDarkBlue" android:textColorHint="@drawable/selector" android:textSize="12dp" app:layout_constraintEnd_toStartOf="@+id/button_confirm" app:layout_constraintHorizontal_bias="0.31" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/editText_title" />
我找到了解決方案-盡管我仍然不確定為什么它不起作用。 我將按鈕更改為ImageButtons,然后突然工作正常。
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