安卓软键盘："Done" "Dismiss"

Question

我想在Android中处理"解散软键盘"事件，据我所知，这样做的唯一解决方案是子类EditText，我根据这个答案做了

这是我的班级:

public class EditTextCustom extends EditText {
    public EditTextCustom(Context context) {
        super(context);
    }
    public EditTextCustom(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
    public EditTextCustom(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }
    @Override
    protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
        super.onFocusChanged(focused, direction, previouslyFocusedRect);
        if (listener != null)
            listener.onStateChanged(this, true);
    }
    @Override
    public boolean onKeyPreIme(int keyCode, @NonNull KeyEvent event) {
        if (event.getKeyCode() == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP) {
            Log.d("Info", "Soft keyboard was hidden");
            if (listener != null) {
                listener.onStateChanged(this, false);
            }
        }
        return super.onKeyPreIme(keyCode, event);
    }
    KeyboardListener listener;
    public void setOnKeyboardListener(KeyboardListener listener) {
        this.listener = listener;
    }
    public interface KeyboardListener {
        void onStateChanged(EditTextCustom keyboardEditText, boolean showing);
    }
}

我需要这个事件(KeyEvent.KEYCODE_BACK和KeyEvent.ACTION_UP)作为EditorInfo.IME_ACTION_DONE，即当用户解散软键盘时，如果它已按下"Done"并且对EditText进行了编辑，则Android将解释它。

实现这个的最佳实践?

Answer 1

mEtNumber.setOnEditorActionListener(new TextView.OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
            if (actionId == EditorInfo.IME_ACTION_DONE) {
                // do something, e.g. set your TextView here via .setText()
                InputMethodManager imm = (InputMethodManager) v.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
                return true;
            }
            return false;
        }
    });

mEtNumber。setOnEditorActionListener(new TextView.OnEditorActionListener() {

        @Override
        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
            if (actionId == EditorInfo.IME_ACTION_DONE) {
                // do something, e.g. set your TextView here via .setText()
                InputMethodManager imm = (InputMethodManager) v.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
                return true;
            }
            return false;
        }
    });

和xml中的

android: imeOptions = " actionDone "