问题
How can i hide a TextInputLayout error after input one text in EditText.
Is it possible?
how can i achieve this or I am doing something wrong here.!!
code
layoutEdtPhone =(TextInputLayout)rootView.findViewById(R.id.layoutEdtPhone);
layoutEdtPhone.setErrorEnabled(true);
layoutEdtPhone.setError(getString(R.string.ui_no_phone_toast));
layoutEdtPassword = (TextInputLayout)rootView.findViewById(R.id.layoutEdtPassword);
layoutEdtPassword.setErrorEnabled(true);
layoutEdtPassword.setError(getString(R.string.ui_no_password_toast));
edtPhone=(EditText)rootView.findViewById(R.id.edtPhone);
edtPassword=(EditText)rootView.findViewById(R.id.edtPassword);
xml
<EditText
android:id="@+id/edtPhone"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="100dp"
android:background="@drawable/edt_background_selector"
android:drawableLeft="@drawable/phone_icon"
android:drawableStart="@drawable/phone_icon"
android:hint="@string/phone"
android:inputType="phone"
android:padding="5dip"
android:singleLine="true"
android:textSize="14sp" />
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
android:id="@+id/layoutEdtPassword"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<EditText
android:id="@+id/edtPassword"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:background="@drawable/edt_background_selector"
android:drawableLeft="@drawable/password_icon"
android:drawableStart="@drawable/password_icon"
android:hint="@string/password"
android:inputType="textPassword"
android:padding="5dip"
android:singleLine="true"
android:textSize="14sp" />
</android.support.design.widget.TextInputLayout>
回答1:
To illustrate further the answer given by Prithviraj, TextInputLayout does not do the validation itself. It is just a mechanism to show the error or hint. You are responsible for setting/clearing the error. Here is how you can do that. Note that in addition to TextChangedListener, you may also need OnFocusChangeListener to set the error when user jumps to second edit text without doing any modification in the first field.
protected void onCreate(Bundle savedInstanceState) {
//.....
edtPhone.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
validateEditText(s);
}
});
edtPhone.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (!hasFocus) {
validateEditText(((EditText) v).getText());
}
}
});
}
private void validateEditText(Editable s) {
if (!TextUtils.isEmpty(s)) {
layoutEdtPhone.setError(null);
}
else{
layoutEdtPhone.setError(getString(R.string.ui_no_password_toast));
}
}
}
回答2:
You can set layoutEdtPhone.setErrorEnabled(false);
回答3:
Do
mTextInputLayout.setError(null);
to clear the error message.
A good practice can be a method to check for errors like this:
@Override
public void checkErrorBeforeAction() {
boolean error = false;
mTextInputLayout.setError(null);
if (mEditText.getText().toString().length == 0)) {
mTextInputLayout.setError("Field empty");
}
else if (mEditText.getText().toString().isValid) { // Other condition
mTextInputLayout.setError("Field is invalid");
}
if (!error) {
// Call action
}
}
This way it refreshes the error message before setting a new one.
回答4:
I used @TextChanged of ButterKnife and worked for me, look:
@Bind(R.id.layoutEdtPhone)
TextInputLayout tlayoutEdtPhone;
@Bind(R.id.edtPhone)
EditText edtPhone;
//start ButterKnife (I spent the URL with full description for initilize)
@OnTextChanged(R.id.edtPhone)
public void changedTextOnEditPhone() {
tlayoutEdtPhone.setError("");
}
If you want know about ButterKnife, I wrote a post with more detail, but it was done in my native language, that is, pt_br. http://blog.alura.com.br/aumentando-a-produtividade-com-butter-knife-no-android/
回答5:
textInputLatout.getEditText().addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (s.length() < 1) {
textInputLayout.setErrorEnabled(true);
textInputLayout.setError("Please enter a value");
}
if (s.length() > 0) {
textInputLayout.setError(null);
textInputLayout.setErrorEnabled(false);
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
回答6:
Sadly there is no built-in mechanism to achieve this behavior. I created ViewUtils class that helps me:
public final class ViewUtils {
private ViewUtils() {}
public static void resetTextInputErrorsOnTextChanged(TextInputLayout... textInputLayouts) {
for (final TextInputLayout inputLayout : textInputLayouts) {
EditText editText = inputLayout.getEditText();
if(editText != null) {
editText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(final CharSequence s, final int start, final int count, final int after) {
}
@Override
public void onTextChanged(final CharSequence s, final int start, final int before, final int count) {
}
@Override
public void afterTextChanged(final Editable s) {
if(inputLayout.getError() != null) inputLayout.setError(null);
}
});
}
}
}
}
And then you can easily use it in the client code:
ViewUtils.resetTextInputErrorsOnTextChanged(mEmailTextInputLayout, mPasswordTextInputLayout);
回答7:
If you want to remove the error display from TextInputLayout use:-
YourtextInputLayout.setErrorEnabled(false);
else If you want to remove error display from edittextfield use:-
edittext_id.setError(null);
I suggest using Textwatcher fucntion in Android for more efficient validation handling..
eg:
editText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
if (!validatefName()) {
return;
}
}
});
回答8:
use textwatcher here's the link http://www.learn2crack.com/2014/02/android-textwatcher-example.html
回答9:
Use a if else condition,if condition is true set TextInoutLayoutObj.setError(null); if its false set your error there
来源：https://stackoverflow.com/questions/31808157/textinputlayout-error-after-enter-value-into-edittext