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Added in API level 1

PreferenceGroup

public abstract class PreferenceGroup
extends Preference

java.lang.Object
↳	android.preference.Preference
	↳	android.preference.PreferenceGroup

Known Direct Subclasses

PreferenceCategory, PreferenceScreen

一个容器，用于多个Preference对象。它是父类的首选项对象的基类，例如PreferenceCategory和PreferenceScreen 。

Developer Guides

有关使用首选项构建设置UI的信息，请阅读 Settings指南。

Summary

XML attributes
`android:orderingFromXml`	Whether to order the Preference under this group as they appear in the XML file.

Inherited XML attributes

From class android.preference.Preference

`android:defaultValue`	The default value for the preference, which will be set either if persistence is off or persistence is on and the preference is not found in the persistent storage.
`android:dependency`	The key of another Preference that this Preference will depend on.
`android:enabled`	Whether the Preference is enabled.
`android:fragment`	When used inside of a modern PreferenceActivity, this declares a new PreferenceFragment to be shown when the user selects this item.
`android:icon`	The optional icon for the preference 必须是另一个资源的引用，其形式为“ `@[+][package:]type:name` ”，或者其形式为“一个主题属性 `?[package:][type:]name` ”。
`android:key`	The key to store the Preference value.
`android:layout`	The layout for the Preference in a PreferenceActivity screen.
`android:order`	The order for the Preference (lower values are to be ordered first).
`android:persistent`	Whether the Preference stores its value to the shared preferences.
`android:selectable`	Whether the Preference is selectable.
`android:shouldDisableView`	Whether the view of this Preference should be disabled when this Preference is disabled.
`android:summary`	The summary for the Preference in a PreferenceActivity screen.
`android:title`	The title for the Preference in a PreferenceActivity screen.
`android:widgetLayout`	The layout for the controllable widget portion of a Preference.

Inherited constants

From class android.preference.Preference

Public constructors
`PreferenceGroup(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)`
`PreferenceGroup(Context context, AttributeSet attrs, int defStyleAttr)`
`PreferenceGroup(Context context, AttributeSet attrs)`

Public methods
`void`	`addItemFromInflater(Preference preference)` 由充气器调用以将项目添加到该组。
`boolean`	`addPreference(Preference preference)` 根据偏好的顺序在正确的位置添加 `Preference` 。
`Preference`	`findPreference(CharSequence key)` 根据其密钥找到 `Preference` 。
`Preference`	`getPreference(int index)` 返回特定索引处的 `Preference` 。
`int`	`getPreferenceCount()` 返回儿童 `Preference` s。
`boolean`	`isOrderingAsAdded()` 该组是否按照它们添加的顺序排序偏好。
`void`	`notifyDependencyChange(boolean disableDependents)` 通知任何监听依赖者影响依赖性的更改。
`void`	`removeAll()` 删除此组中的所有 `Preferences` 。
`boolean`	`removePreference(Preference preference)` 从此组中删除 `Preference` 。
`void`	`setOrderingAsAdded(boolean orderingAsAdded)` 是否订购添加该组的 `Preference`这个组的孩子。

Protected methods
`void`	`dispatchRestoreInstanceState(Bundle container)` 由 `restoreHierarchyState(Bundle)`调用以检索此首选项及其子项的已保存状态。
`void`	`dispatchSaveInstanceState(Bundle container)` 由 `saveHierarchyState(Bundle)`调用以存储此首选项及其子项的实例。
`boolean`	`isOnSameScreenAsChildren()` 此偏好组是否应该与其包含的偏好一起显示在同一屏幕上。
`void`	`onAttachedToActivity()` 当偏好层次结构已附加到 `PreferenceActivity` 。
`boolean`	`onPrepareAddPreference(Preference preference)` 准备将 `Preference`添加到组中。
`void`	`onPrepareForRemoval()` 当此首选项从层次结构中删除时调用。

Inherited methods

From class android.preference.Preference

From class java.lang.Object

From interface java.lang.Comparable

XML attributes

android:orderingFromXml

是否按照在XML文件中出现的顺序排列此组中的首选项。如果这是错误的，则顺序将遵循偏好顺序属性，并且对于没有顺序属性的顺序，默认为字母顺序。

必须是布尔值，可以是“ true ”或“ false ”。

这也可能是对包含此类型值的资源（形式为“ @[package:]type:name ”）或主题属性（形式为“ ?[package:][type:]name ”）的 ?[package:][type:]name 。

这对应于全局属性资源符号 orderingFromXml 。

Public constructors

PreferenceGroup

Added in API level 21

PreferenceGroup (Context context, 
                AttributeSet attrs, 
                int defStyleAttr, 
                int defStyleRes)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`
`defStyleAttr`	`int`
`defStyleRes`	`int`

PreferenceGroup

Added in API level 1

PreferenceGroup (Context context, 
                AttributeSet attrs, 
                int defStyleAttr)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`
`defStyleAttr`	`int`

PreferenceGroup

Added in API level 1

PreferenceGroup (Context context, 
                AttributeSet attrs)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`

Public methods

addItemFromInflater

Added in API level 1

void addItemFromInflater (Preference preference)

由充气器调用以将项目添加到该组。

Parameters
`preference`	`Preference`

addPreference

Added in API level 1

boolean addPreference (Preference preference)

根据偏好的顺序在正确的位置添加 Preference 。

Parameters
`preference`	`Preference`: The preference to add.

Returns
`boolean`	Whether the preference is now in this group.

findPreference

Added in API level 1

Preference findPreference (CharSequence key)

根据其密钥找到Preference 。如果两个Preference共享相同的密钥（不推荐），则将返回第一个出现（以检索具有相同密钥的其他首选项，在第一首选项上调用此方法）。如果此首选项有密钥，则不会返回。

这将递归搜索也是 PreferenceGroups儿童的偏好。

Parameters
`key`	`CharSequence`: The key of the preference to retrieve.

Returns
`Preference`	The `Preference` with the key, or null.

getPreference

Added in API level 1

Preference getPreference (int index)

返回特定索引处的 Preference 。

Parameters
`index`	`int`: The index of the `Preference` to retrieve.

Returns
`Preference`	The `Preference`.

getPreferenceCount

Added in API level 1

int getPreferenceCount ()

返回儿童 Preference s。

Returns
`int`	The number of preference children in this group.

isOrderingAsAdded

Added in API level 1

boolean isOrderingAsAdded ()

该组是否按照它们添加的顺序排序偏好。

Returns
`boolean`	Whether this group orders based on the order the children are added.

也可以看看：

setOrderingAsAdded(boolean)

notifyDependencyChange

Added in API level 1

void notifyDependencyChange (boolean disableDependents)

通知任何监听依赖者影响依赖性的更改。

Parameters
`disableDependents`	`boolean`: Whether this Preference should disable its dependents.

removeAll

Added in API level 1

void removeAll ()

从该组中删除所有 Preferences 。

removePreference

Added in API level 1

boolean removePreference (Preference preference)

从该组中删除 Preference 。

Parameters
`preference`	`Preference`: The preference to remove.

Returns
`boolean`	Whether the preference was found and removed.

setOrderingAsAdded

Added in API level 1

void setOrderingAsAdded (boolean orderingAsAdded)

是否订购添加该组的Preference儿童。如果这是错误的，那么顺序将遵循每个偏好顺序，并且对于没有顺序的顺序，默认顺序为字母顺序。

如果在添加偏好设置后调用它，那么它们将不会按照它们添加的顺序重新排序，因此请尽早调用此方法。

Parameters
`orderingAsAdded`	`boolean`: Whether to order according to the order added.

也可以看看：

setOrder(int)

Protected methods

dispatchRestoreInstanceState

Added in API level 1

void dispatchRestoreInstanceState (Bundle container)

由restoreHierarchyState(Bundle)调用以检索此首选项及其子项的已保存状态。可能会被覆盖以修改首选项的子项的恢复方式。例如，某些首选项对象可能不想为其子项保存状态。

Parameters
`container`	`Bundle`: The Bundle that holds the previously saved state.

dispatchSaveInstanceState

Added in API level 1

void dispatchSaveInstanceState (Bundle container)

由saveHierarchyState(Bundle)调用以存储此首选项及其子项的实例。可能会被覆盖以修改如何为孩子保存。例如，某些首选项对象可能不想为其子项存储实例。

Parameters
`container`	`Bundle`: The Bundle in which to save the instance of this Preference.

isOnSameScreenAsChildren

Added in API level 1

boolean isOnSameScreenAsChildren ()

此偏好组是否应该与其包含的偏好一起显示在同一屏幕上。

Returns
`boolean`	True if the contained preferences should be shown on the same screen as this preference.

onAttachedToActivity

Added in API level 1

void onAttachedToActivity ()

当偏好层次结构已附加到PreferenceActivity 。当此首选项已附加到已连接到PreferenceActivity的组时，也可以调用此选项。

onPrepareAddPreference

Added in API level 1

boolean onPrepareAddPreference (Preference preference)

准备将 Preference添加到组中。

Parameters
`preference`	`Preference`: The preference to add.

Returns
`boolean`	Whether to allow adding the preference (true), or not (false).

onPrepareForRemoval

Added in API level 1

void onPrepareForRemoval ()

当此首选项从层次结构中删除时调用。您应该删除对此知识的任何引用。确保通过超类实现进行调用。

Interfaces

Classes

Most visited

Recently visited

Results for

PreferenceGroup

Developer Guides

Summary

XML attributes

Inherited XML attributes

Inherited constants

Public constructors

Public methods

Protected methods

Inherited methods

XML attributes

android:orderingFromXml

Public constructors

PreferenceGroup

PreferenceGroup

PreferenceGroup

Public methods

addItemFromInflater

addPreference

findPreference

getPreference

getPreferenceCount

isOrderingAsAdded

notifyDependencyChange

removeAll

removePreference

setOrderingAsAdded

Protected methods

dispatchRestoreInstanceState

dispatchSaveInstanceState

isOnSameScreenAsChildren

onAttachedToActivity

onPrepareAddPreference

onPrepareForRemoval