OnKeyListenerが機能していない

Question

ABC-0000-0000-0000のように4つのedittextにデータを挿入したいのですが、edittextがいっぱいになるとtextwatcherを適用して、deleteキーを押したときに後方に移動する必要があります。マイコードandroid6.0.1

下にIS- enter image description here

editToken_1 =(EditText)alertLayout.findViewById(R.id.number1); 
    editToken_2 = (EditText) alertLayout.findViewById(R.id.number2); 
    editToken_3 =(EditText)alertLayout.findViewById(R.id.number3); 
    editToken_4 = (EditText) alertLayout.findViewById(R.id.number4); 

    editToken_1.addTextChangedListener(textWatcher); 
    editToken_2.addTextChangedListener(textWatcher); 
    editToken_3.addTextChangedListener(textWatcher); 
    editToken_4.addTextChangedListener(textWatcher); 

    editToken_1.setOnKeyListener(returnKeyListener); 
    editToken_2.setOnKeyListener(returnKeyListener); 
    editToken_3.setOnKeyListener(returnKeyListener); 
    editToken_4.setOnKeyListener(returnKeyListener); 

EditText.OnKeyListener returnKeyListener =新しいEditText.OnKeyListener（）{

@Override 
    public boolean onKey(View v, int keyCode, KeyEvent event) { 

     if (keyCode == KeyEvent.KEYCODE_DEL) { 

      if (v.getId() == editToken_4.getId() && (TextUtils.isEmpty(editToken_4.getText())) || editToken_4.getSelectionStart()==0) { 

       editToken_3.setSelection(editToken_3.getText().length()); 
       editToken_3.requestFocus(); 

      } 

      if (v.getId() == editToken_3.getId() && (TextUtils.isEmpty(editToken_3.getText())) || editToken_3.getSelectionStart()==0) { 

       editToken_2.setSelection(editToken_2.getText().length()); 
       editToken_2.requestFocus(); 

      } 

      if (v.getId() == editToken_2.getId() && (TextUtils.isEmpty(editToken_2.getText())) || editToken_2.getSelectionStart()==0){ 

       editToken_1.setSelection(editToken_1.getText().length()); 
       editToken_1.requestFocus(); 

      } 
     } 

     return false; 
    } 
}; 

TextWatcher textWatcher = new TextWatcher() { 
    @Override 
    public void beforeTextChanged(CharSequence s, int start, int count, int after) { 
     Log.d(TAG,"beforeharSequence s "+s+"\nstart "+start+"\ncount "+count+"\nafter "+after); 
    } 

    @Override 
    public void onTextChanged(CharSequence s, int start, int before, int count) { 
     Log.d(TAG," OnTextCharSequence s "+s+"\nstart "+start+"\nbefore "+before+"\ncount "+count); 

    } 

    @Override 
    public void afterTextChanged(Editable s) { 
     Log.d(TAG," afterCharSequence s "+s); 

     if (isFilledForFirst(editToken_1) && isFilled(editToken_2) && isFilled(editToken_3) && isFilled(editToken_4)) { 
      closeKB(); 
      return; 
     } 

     if (isFilledForFirst(editToken_1) && !isFilled(editToken_2)) { 

      editToken_2.requestFocus(); 
      return; 
     } 

     if (isFilled(editToken_2) && !isFilled(editToken_3)) { 

      editToken_3.requestFocus(); 
      return; 
     } 

     if (isFilled(editToken_3) && !isFilled(editToken_4)) { 

      editToken_4.requestFocus(); 
      return; 
     } 
    } 
}; 
void closeKB() { 

    if (getCurrentFocus() != null) { 

     InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
     imm.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), 0); 
    } 
} 

private boolean isFilled(EditText editText) { 

    if(editText.getText().toString().trim().length()==4 && !TextUtils.isEmpty(editText.getText())) 
    { 
     return !TextUtils.isEmpty(editText.getText()); 
    } 
    return false; 
} 

private boolean isFilledForFirst(EditText editText) { 

    if(editText.getText().toString().trim().length()==3 && !TextUtils.isEmpty(editText.getText())) 
    { 
     return !TextUtils.isEmpty(editText.getText()); 
    } 
    return false; 
} 

String getFinalCodeFromEditTexts() { 
    String Token = String.format(Locale.getDefault(), "%s%s%s%s%s%s%s", editToken_1.getText().toString().trim(), space_1.getText().toString().trim(), editToken_2.getText().toString().trim(), space_2.getText().toString().trim(), editToken_3.getText().toString().trim(), space_3.getText().toString().trim(), editToken_4.getText().toString().trim()); 
    if (Token.length() == 18) { 
     Toast.makeText(MainActivity.this, "token is" + Token, Toast.LENGTH_SHORT).show(); 
    } else { 
     Toast.makeText(MainActivity.this, "Please Enter valid Token", Toast.LENGTH_SHORT).show(); 
    } 
    return Token; 
} 

に動作していない印加OnKeyListener

Answer 1

キーコードイベントが発生したときにreturn true;を追加します。それがなければ、聞き手は発砲しません。

 @Override 
    public boolean onKey(View v, int keyCode, KeyEvent event) { 

     if (keyCode == KeyEvent.KEYCODE_DEL) { 

      if (v.getId() == editToken_4.getId() && (TextUtils.isEmpty(editToken_4.getText())) || editToken_4.getSelectionStart()==0) { 

       editToken_3.setSelection(editToken_3.getText().length()); 
       editToken_3.requestFocus(); 

      } 

      if (v.getId() == editToken_3.getId() && (TextUtils.isEmpty(editToken_3.getText())) || editToken_3.getSelectionStart()==0) { 

       editToken_2.setSelection(editToken_2.getText().length()); 
       editToken_2.requestFocus(); 

      } 

      if (v.getId() == editToken_2.getId() && (TextUtils.isEmpty(editToken_2.getText())) || editToken_2.getSelectionStart()==0){ 

       editToken_1.setSelection(editToken_1.getText().length()); 
       editToken_1.requestFocus(); 
      } 
      return true; //add this 
     } 

     return false; 
    } 
};