EditTextPreference
public
class
EditTextPreference
extends DialogPreference
java.lang.Object | |||
↳ | android.preference.Preference | ||
↳ | android.preference.DialogPreference | ||
↳ | android.preference.EditTextPreference |
This class was deprecated
in API level 29.
Use the AndroidX
Preference Library for consistent behavior across all devices. For more information on
using the AndroidX Preference Library see
Settings.
A Preference
that allows for string
input.
It is a subclass of DialogPreference
and shows the EditText
in a dialog. This EditText
can be modified either programmatically
via getEditText()
, or through XML by setting any EditText
attributes on the EditTextPreference.
This preference will store a string into the SharedPreferences.
See EditText Attributes
.
Summary
Inherited XML attributes | |
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Inherited constants |
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Public constructors | |
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EditTextPreference(Context context)
|
|
EditTextPreference(Context context, AttributeSet attrs)
|
|
EditTextPreference(Context context, AttributeSet attrs, int defStyleAttr)
|
|
EditTextPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)
|
Public methods | |
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EditText
|
getEditText()
Returns the |
String
|
getText()
Gets the text from the |
void
|
setText(String text)
Saves the text to the |
boolean
|
shouldDisableDependents()
Checks whether this preference's dependents should currently be disabled. |
Protected methods | |
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void
|
onAddEditTextToDialogView(View dialogView, EditText editText)
Adds the EditText widget of this preference to the dialog's view. |
void
|
onBindDialogView(View view)
Binds views in the content View of the dialog to data. |
void
|
onDialogClosed(boolean positiveResult)
Called when the dialog is dismissed and should be used to save data to
the |
Object
|
onGetDefaultValue(TypedArray a, int index)
Called when a Preference is being inflated and the default value attribute needs to be read. |
void
|
onRestoreInstanceState(Parcelable state)
Hook allowing a Preference to re-apply a representation of its internal state that had
previously been generated by |
Parcelable
|
onSaveInstanceState()
Hook allowing a Preference to generate a representation of its internal state that can later be used to create a new instance with that same state. |
void
|
onSetInitialValue(boolean restoreValue, Object defaultValue)
Implement this to set the initial value of the Preference. |
void
|
showDialog(Bundle state)
Shows the dialog associated with this Preference. |
Inherited methods | |
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Public constructors
EditTextPreference
public EditTextPreference (Context context)
Parameters | |
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context |
Context |
EditTextPreference
public EditTextPreference (Context context, AttributeSet attrs)
Parameters | |
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context |
Context |
attrs |
AttributeSet |
EditTextPreference
public EditTextPreference (Context context, AttributeSet attrs, int defStyleAttr)
Parameters | |
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context |
Context |
attrs |
AttributeSet |
defStyleAttr |
int |
EditTextPreference
public EditTextPreference (Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)
Parameters | |
---|---|
context |
Context |
attrs |
AttributeSet |
defStyleAttr |
int |
defStyleRes |
int |
Public methods
getEditText
public EditText getEditText ()
Returns the EditText
widget that will be shown in the dialog.
Returns | |
---|---|
EditText |
The EditText widget that will be shown in the dialog. |
getText
public String getText ()
Gets the text from the SharedPreferences
.
Returns | |
---|---|
String |
The current preference value. |
setText
public void setText (String text)
Saves the text to the SharedPreferences
.
Parameters | |
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text |
String : The text to save |
shouldDisableDependents
public boolean shouldDisableDependents ()
Checks whether this preference's dependents should currently be disabled.
Returns | |
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boolean |
True if the dependents should be disabled, otherwise false. |
Protected methods
onAddEditTextToDialogView
protected void onAddEditTextToDialogView (View dialogView, EditText editText)
Adds the EditText widget of this preference to the dialog's view.
Parameters | |
---|---|
dialogView |
View : The dialog view. |
editText |
EditText |
onBindDialogView
protected void onBindDialogView (View view)
Binds views in the content View of the dialog to data.
Make sure to call through to the superclass implementation.
If you override this method you must call through to the
superclass implementation.
Parameters | |
---|---|
view |
View : The content View of the dialog, if it is custom. |
onDialogClosed
protected void onDialogClosed (boolean positiveResult)
Called when the dialog is dismissed and should be used to save data to
the SharedPreferences
.
Parameters | |
---|---|
positiveResult |
boolean : Whether the positive button was clicked (true), or
the negative button was clicked or the dialog was canceled (false). |
onGetDefaultValue
protected Object onGetDefaultValue (TypedArray a, int index)
Called when a Preference is being inflated and the default value attribute needs to be read. Since different Preference types have different value types, the subclass should get and return the default value which will be its value type.
For example, if the value type is String, the body of the method would
proxy to TypedArray.getString(int)
.
Parameters | |
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a |
TypedArray : The set of attributes. |
index |
int : The index of the default value attribute. |
Returns | |
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Object |
The default value of this preference type. |
onRestoreInstanceState
protected void onRestoreInstanceState (Parcelable state)
Hook allowing a Preference to re-apply a representation of its internal state that had
previously been generated by onSaveInstanceState()
. This function will never be called
with a null
state.
Parameters | |
---|---|
state |
Parcelable : The saved state that had previously been returned by
onSaveInstanceState() . |
onSaveInstanceState
protected Parcelable onSaveInstanceState ()
Hook allowing a Preference to generate a representation of its internal state that can later be used to create a new instance with that same state. This state should only contain information that is not persistent or can be reconstructed later.
Returns | |
---|---|
Parcelable |
A Parcelable object containing the current dynamic state of this Preference, or
null if there is nothing interesting to save. The default implementation
returns null . |
onSetInitialValue
protected void onSetInitialValue (boolean restoreValue, Object defaultValue)
Implement this to set the initial value of the Preference.
If restorePersistedValue is true, you should restore the
Preference value from the SharedPreferences
. If
restorePersistedValue is false, you should set the Preference
value to defaultValue that is given (and possibly store to SharedPreferences
if shouldPersist()
is true).
In case of using PreferenceDataStore
, the restorePersistedValue is
always true
. But the default value (if provided) is set.
This may not always be called. One example is if it should not persist but there is no default value given.
Parameters | |
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restoreValue |
boolean : True to restore the persisted value;
false to use the given defaultValue. |
defaultValue |
Object : The default value for this Preference. Only use this
if restorePersistedValue is false. |
showDialog
protected void showDialog (Bundle state)
Shows the dialog associated with this Preference. This is normally initiated automatically on clicking on the preference. Call this method if you need to show the dialog on some other event.
Parameters | |
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state |
Bundle : Optional instance state to restore on the dialog |