Question

我遇到TextView中字符串的OnRestoreInstanceState问题。该字符串基本上是一个箭头（＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;

基本上这是我的代码：

private TextView textViewPlayerOneTurn;

...

    private void switchPlayerTurn(){
        if (playerOneMove){
            textViewPlayerOneTurn.setVisibility(View.VISIBLE);
            textViewPlayerTwoTurn.setVisibility(View.INVISIBLE);
        }
        else{
            textViewPlayerOneTurn.setVisibility(View.INVISIBLE);
            textViewPlayerTwoTurn.setVisibility(View.VISIBLE);
        }

...

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        outState.putString("textViewPlayerOneTurn", textViewPlayerOneTurn.toString());
        outState.putString("textViewPlayerTwoTurn", textViewPlayerTwoTurn.toString());
        outState.putBoolean("playerOneMove", playerOneMove);
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);

        playerOneMove = savedInstanceState.getBoolean("playerOneMove");
    }

我的问题是，当我旋转屏幕时，指针始终默认为玩家转弯。我可能正在咆哮错误的树但我的想法是onRestoreInstanceState所以我想在该方法中包含以下内容：

textViewPlayerOneTurn = savedInstanceState.getString（＆＃34; textViewPlayerOneTurn＆＃34;）; textViewPlayerTwoTurn = savedInstanceState.getString（＆＃34; textViewPlayerTwoTurn＆＃34;）;

但它给出了错误，说它需要 android.widget.TextView ，并且发现 Java.lang.String

我该如何解决这个问题？

Answer 1

textViewPlayerOneTurn.toString()返回TextView对象的字符串表示形式，该对象在TextView类的toString()方法中定义。

textViewPlayerOneTurn.getText().toString()将返回TextView上显示的预期字符串。

而不是textViewPlayerOneTurn.toString()使用textViewPlayerOneTurn.getText().toString()

Answer 2

请使用

textViewPlayerOneTurn.getText().toString()

而不是

textViewPlayerOneTurn.toString().

无法将getString用于textView - android

2 个答案: