在空对象 referenceid.view.KeyEvnt.getAction() 上调用虚方法 'int android.view.KeyEvent.getAction()'

Question

我有这个代码：

public ClearableEditText(Context context, AttributeSet attrs) {
    super(context, attrs);

    setOnEditorActionListener((v, actionId, event) -> {
        if (event.getAction() == KeyEvent.ACTION_DOWN && event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
            return true;

        }
        return false;
    });

并返回此错误

at widget.ClearableEditText.onEditorAction(ClearableEditText.java:34)

我该如何处理？

Answer 1

使用 actionID 而不是 action_event。希望它会得到解决。示例代码如下：-

your_edittextfield.setOnEditorActionListener(new TextView.OnEditorActionListener() {
    @Override public boolean onEditorAction(TextView edt, int actionId, KeyEvent key) {
        boolean handled=false;
        if(actionId==EditorInfo.IME_ACTION_DONE) {
            //Do your task here
            handled=true;
        }
        return handled;
    }
});

在空对象 referenceid.view.KeyEvnt.getAction() 上调用虚方法 'int android.view.KeyEvent.getAction()'

invoke virtual method 'int android.view.KeyEvent.getAction()' on a null object referenceid.view.KeyEvnt.getAction()

android

keyevent

android-studio