InputFilter.LengthFilter

Kotlin |Java

public static class InputFilter.LengthFilter
extends Object implements InputFilter

java.lang.Object
↳	android.text.InputFilter.LengthFilter

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

Summary

Public constructors
`LengthFilter(int max)`

Public methods
`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()`

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

From interface


        
          android.text.InputFilter


        abstract
        
        
        
        
        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.

Public constructors

LengthFilter

Added in API level 1

public LengthFilter (int max)

Parameters
`max`	`int`

Public methods

filter

Added in API level 1

public 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. 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 can be used for convenience if the span boundary indices would be remaining identical relative to the source.

Parameters
`source`	`CharSequence`
`start`	`int`
`end`	`int`
`dest`	`Spanned`
`dstart`	`int`
`dend`	`int`

Returns
`CharSequence`

getMax

Added in API level 21

public int getMax ()

Returns
`int`	the maximum length enforced by this input filter