Android 输入后未清除 EditText setError 消息
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EditText setError message does not clear after input
提问by Michael
Ok so I only have a EditText field and a button, which when pressed triggers an AsyncTask.
好的，所以我只有一个 EditText 字段和一个按钮，按下时会触发 AsyncTask。
EditText playerName = (EditText)findViewById(R.id.playerEditText);
if(playerName.getText().toString().length() == 0 )
playerName.setError("Player name is required!");
else {
// do async task
}
The problem is that the error message seems to stay up even after when I input valid text to search. Is there a way to remove the error as soon as the EditText is not empty?
问题是即使在我输入有效文本进行搜索之后，错误消息似乎仍然存在。一旦 EditText 不为空，有没有办法消除错误？
回答by Alex Curran
In your else bracket, put playerName.setError(null), which will clear the error.
在您的 else 括号中， put playerName.setError(null)，这将清除错误。
回答by gints
API documentation: "The icon and error message will be reset to null when any key events cause changes to the TextView's text." Though it is not so - and therefore we can regard this as bug.
API 文档：“当任何关键事件导致 TextView 的文本发生更改时，图标和错误消息将重置为 null。” 虽然事实并非如此 - 因此我们可以将其视为错误。
If you use inputType such as textNoSuggestions, textEmailAddress, textPassword, the error is unset after a character is typed. Nearly as documented but again not exactly - when you delete a character, error stays. It seems, a simple workaround with addTextChangedListener and setError(null) can attain promised behavior.
如果使用 textNoSuggestions、textEmailAddress、textPassword 等 inputType，则在输入字符后未设置错误。几乎按照文档记录但又不完全 - 当您删除一个字符时，错误仍然存在。看起来，使用 addTextChangedListener 和 setError(null) 的简单解决方法可以实现承诺的行为。
Besides there are posts about icon losing on Android 4.2. So use with care.
此外还有关于 Android 4.2 上图标丢失的帖子。所以请谨慎使用。
回答by Jan Ziesse
Try this listener:
试试这个监听器：
playerName.addTextChangedListener(new TextWatcher()
{
public void afterTextChanged(Editable edt){
if( playerName.getText().length()>0)
{
playerName.setError(null);
}
}
回答by ayush bagaria
If you want to hide the error message one way is you apply onclicklistener on the edit box and then
如果要隐藏错误消息的一种方法是在编辑框上应用 onclicklistener 然后
editTextName.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
editTextName.setError(Null)
}
});
回答by Rissmon Suresh
Below code worked for me
下面的代码对我有用
@OnTextChanged(
value = R.id.editTextName,
callback = OnTextChanged.Callback.TEXT_CHANGED)
public void afterInput(CharSequence sequence) {
editTextName.setError(null);
editTextName.setErrorEnabled(false);
}
'
'
editTextName.setError(null)Will clear the error message.
editTextName.setErrorEnabled(false)Will remove additional padding.
editTextName.setError(null)将清除错误消息。
editTextName.setErrorEnabled(false)将删除额外的填充。
回答by SureshCS50
Add a TextWatcher to your EditText and onError, show your error message using et.setError(errorMessage)else you can remove the error message and error icon like below.
将 TextWatcher 添加到您的 EditText 和 onError，使用et.setError(errorMessage)else显示您的错误消息，您可以删除错误消息和错误图标，如下所示。
// to remove the error message in your EditText
et.setError(null);
// to remove the error icon from EditText.
et.setCompoundDrawables(null, null, null, null);
