How do you set the max number of characters for an Android EditText input? I see setMaxLines, setMaxEMS, but nothing for the number of characters.
This question is related to
android
android-edittext
use this function anywhere easily:
public static void setEditTextMaxLength(EditText editText, int length) {
InputFilter[] FilterArray = new InputFilter[1];
FilterArray[0] = new InputFilter.LengthFilter(length);
editText.setFilters(FilterArray);
}
It is working for me.
etMsgDescription.setFilters(new InputFilter[] {new InputFilter.LengthFilter(maximum_character)});
etMsgDescription.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
tvCharacterLimite.setText(" "+String.valueOf(maximum_character - etMsgDescription.getText().length()));
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
Obviously you can use maxLength in xml or InputFilter.LengthFilter as answered above. But for me in some cases, it was not enough. I created a class for more flexible settings of EditText: https://github.com/devapro/NumberWatcher It is implementation only for numbers input, but you can change it for any of the types.
<EditText
android:id="@+id/edtName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter device name"
android:maxLength="10"
android:inputType="textFilter"
android:singleLine="true"/>
InputType has to set "textFilter"
android:inputType="textFilter"
it doesn't work from XML with maxLenght I used this code, you can limit the number of characters
String editorName = mEditorNameNd.getText().toString().substring(0, Math.min(mEditorNameNd.length(), 15));
You can use a InputFilter, that's the way:
EditText myEditText = (EditText) findViewById(R.id.editText1);
InputFilter[] filters = new InputFilter[1];
filters[0] = new InputFilter.LengthFilter(10); //Filter to 10 characters
myEditText .setFilters(filters);
I always set the max like this:
<EditText
android:id="@+id/edit_blaze_it
android:layout_width="0dp"
android:layout_height="@dimen/too_high"
<!-- This is the line you need to write to set the max-->
android:maxLength="420"
/>
Dynamically:
editText.setFilters(new InputFilter[] { new InputFilter.LengthFilter(MAX_NUM) });
Via xml:
<EditText
android:maxLength="@integer/max_edittext_length"
It worked for me this way, it's the best I've found. It is for a max length of 200 characters
editObservations.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (editObservations.getText().length() >= 201){
String str = editObservations.getText().toString().substring(0, 200);
editObservations.setText(str);
editObservations.setSelection(str.length());
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
In XML you can add this line to the EditText
View
where 140 is the maximum number of characters:
android:maxLength="140"
Kotlin way
editText.filters = arrayOf(InputFilter.LengthFilter(maxLength))
Source: Stackoverflow.com