Package icyllis.modernui.text

Class InputFilter.LengthFilter

java.lang.Object

icyllis.modernui.text.InputFilter.LengthFilter

All Implemented Interfaces:

InputFilter

Enclosing interface:

InputFilter

public static class InputFilter.LengthFilter
extends Object
implements InputFilter

This filter will constrain edits not to make the length of the text greater than the specified length.

Nested Class Summary

Nested classes/interfaces inherited from interface icyllis.modernui.text.InputFilter

InputFilter.LengthFilter

Constructor Summary

Constructors

Constructor	Description
LengthFilter(int max)

Method Summary

Modifier and Type	Method	Description
CharSequence	filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend)	This method is called when the buffer is going to replace the range dstart … dend of dest with the new text from the range start … end of source.
int	getMax()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LengthFilter

public LengthFilter(int max)

Method Details

filter

@Nullable
public CharSequence filter(@Nonnull
 CharSequence source,
 int start,
 int end,
 @Nonnull
 Spanned dest,
 int dstart,
 int dend)

Description copied from interface: InputFilter

This method is called when the buffer is going to replace the range dstart … dend of dest with the new text from the range start … end of source. Return the CharSequence that you would like to have placed there instead, including an empty string if appropriate, or null to accept the original replacement. Be careful to not to reject 0-length replacements, as this is what happens when you delete text. Also beware that you should not attempt to make any changes to dest from this method; you may only examine it for context.

Note: If source is an instance of Spanned or Spannable, the span objects in the source should be copied into the filtered result (i.e. the non-null return value). TextUtils.copySpansFrom(icyllis.modernui.text.Spanned, int, int, java.lang.Class<?>, icyllis.modernui.text.Spannable, int) can be used for convenience if the span boundary indices would be remaining identical relative to the source.

Specified by:

filter in interface InputFilter

getMax

public int getMax()

Returns:

the maximum length enforced by this input filter