フォーカスが外れたとき、ソフトキーボードを非表示にするEditText

public class AutoHideKeyboardEditText extends EditText {

    protected boolean mHideKeyboardEnable = true;

    public AutoHideKeyboardEditText(Context context) {
        super(context);
    }

    public AutoHideKeyboardEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public void setHideKeyboardEnable(final boolean enabled) {
        mHideKeyboardEnable = enabled;
    }

    @Override
    protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
        super.onFocusChanged(focused, direction, previouslyFocusedRect);
        if (mHideKeyboardEnable && !focused) {
            // ソフトキーボードを非表示にする
            final InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.hideSoftInputFromWindow(getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
        }
    }
}