要实现TextView文本与输入框联动，可以使用TextWatcher监听输入框的文本变化，然后将输入的文本设置到TextView中。以下是一个简单的示例代码：
EditText editText = findViewById(R.id.editText);
TextView textView = findViewById(R.id.textView);
editText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// This method is called to notify you that, within s, the count characters beginning at start are about to be replaced by new text with length after.
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// This method is called to notify you that, within s, the count characters beginning at start have just replaced old text that had length before.
textView.setText(s.toString());
}
@Override
public void afterTextChanged(Editable s) {
// This method is called to notify you that somewhere within s, the text has been changed.
}
});
在这个示例中，我们将输入框的文本变化监听器添加到EditText中，然后在onTextChanged方法中将输入框中的文本设置到TextView中，从而实现了TextView文本与输入框联动的效果。
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
