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Templates for Android app teaching materials

Kotlin 96.77% Java 3.23%
android android-java android-kotlin java11 jetpack-compose material-design-3 template

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Keyboardを閉じる処理のスニペットコード

MainActivity.java

        // R.id.editText の部分は自分で指定したIdに変更してください。
        final EditText editText = findViewById(R.id.editText);
        editText.setOnKeyListener(new View.OnKeyListener() {
            /**
             * キーイベントをフックする.
             *
             * @param v KeyがディスパッチされたView
             * @param keyCode 押された物理キーのコード
             * @param event イベントに関する完全な情報を含むKeyEventオブジェクト
             * @return リスナーがイベントを消費した場合はtrue、それ以外の場合はfalse
             */
            @Override
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (event.getAction() == KeyEvent.ACTION_DOWN &&
                        keyCode == KeyEvent.KEYCODE_ENTER) {
                    hideKeyboard();
                    return true;
                }
                return false;
            }
        });

       public void hideKeyboard() {
               final View currentFocus = this.getCurrentFocus();
               if (currentFocus != null) {
                   InputMethodManager im = (InputMethodManager) this.getSystemService(Activity.INPUT_METHOD_SERVICE);
                   im.hideSoftInputFromWindow(currentFocus.getWindowToken(), 0);
               }
        }

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