How to programmatically set maxLength in Android TextView?
Question
I would like to programmatically set maxLength
property of TextView
as I don't want to hard code it in the layout. I can't see any set
method related to maxLength
.
Can anyone guide me how to achieve this?
Solution
Should be something like that. but never used it for textview, only edittext :
TextView tv = new TextView(this);
int maxLength = 10;
InputFilter[] fArray = new InputFilter[1];
fArray[0] = new InputFilter.LengthFilter(maxLength);
tv.setFilters(fArray);
OTHER TIPS
Try this
int maxLengthofEditText = 4;
editText.setFilters(new InputFilter[] {new InputFilter.LengthFilter(maxLengthofEditText)});
Easy way limit edit text character :
EditText ed=(EditText)findViewById(R.id.edittxt);
ed.setFilters(new InputFilter[]{new InputFilter.LengthFilter(15)});
For those of you using Kotlin
fun EditText.limitLength(maxLength: Int) {
filters = arrayOf(InputFilter.LengthFilter(maxLength))
}
Then you can just use a simple editText.limitLength(10)
For Kotlin and without resetting previous filters:
fun TextView.addFilter(filter: InputFilter) {
filters =
if (filters.isNullOrEmpty()) {
arrayOf(filter)
} else {
filters
.toMutableList()
.apply {
removeAll { it.javaClass == filter.javaClass }
add(filter)
}
.toTypedArray()
}
}
textView.addFilter(InputFilter.LengthFilter(10))
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Title");
final EditText input = new EditText(this);
input.setInputType(InputType.TYPE_CLASS_NUMBER);
//for Limit...
input.setFilters(new InputFilter[] {new InputFilter.LengthFilter(3)});
builder.setView(input);
best solution i found
textView.setText(text.substring(0,10));
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