Spinner下拉列表.docx

Spinner下拉列表.docx

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Spinner下拉列表

Spinner下拉列表

extendsAbsSpinner

implementsDialogInterface.OnClickListener

java.lang.Object

↳android.view.View

↳android.view.ViewGroup

↳android.widget.AdapterView

↳android.widget.AbsSpinner

↳android.widget.Spinner

KnownDirectSubclasses

AppCompatSpinner

ClassOverview

Aviewthatdisplaysonechildatatimeandletstheuserpickamongthem.TheitemsintheSpinnercomefromtheAdapterassociatedwiththisview.

SeetheSpinnersguide.

Summary

XMLAttributes

AttributeNameRelatedMethodDescription

android:

dropDownHorizontalOffsetsetDropDownHorizontalOffset（int）Amountofpixelsbywhichthedropdownshouldbeoffsethorizontally.

android:

dropDownSelectorListselectortouseforspinnerMode="dropdown"display.

android:

dropDownVerticalOffsetsetDropDownVerticalOffset（int）Amountofpixelsbywhichthedropdownshouldbeoffsetvertically.

android:

dropDownWidthsetDropDownWidth（int）WidthofthedropdowninspinnerMode="dropdown".

android:

gravitysetGravity（int）Gravitysettingforpositioningthecurrentlyselecteditem.

android:

popupBackgroundsetPopupBackgroundResource（int）BackgrounddrawabletouseforthedropdowninspinnerMode="dropdown".

android:

promptTheprompttodisplaywhenthespinner'sdialogisshown.

android:

spinnerModeDisplaymodeforspinneroptions.

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InheritedXMLAttributes

Fromclassandroid.widget.AbsSpinner

Fromclassandroid.view.ViewGroup

Fromclassandroid.view.View

Constants

intMODE_DIALOGUseadialogwindowforselectingspinneroptions.

intMODE_DROPDOWNUseadropdownanchoredtotheSpinnerforselectingspinneroptions.

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InheritedConstants

Fromclassandroid.widget.AdapterView

Fromclassandroid.view.ViewGroup

Fromclassandroid.view.View

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InheritedFields

Fromclassandroid.view.View

PublicConstructors

Spinner（Contextcontext）

Constructanewspinnerwiththegivencontext'stheme.

Spinner（Contextcontext,intmode）

Constructanewspinnerwiththegivencontext'sthemeandthesuppliedmodeofdisplayingchoices.

Spinner（Contextcontext,AttributeSetattrs）

Constructanewspinnerwiththegivencontext'sthemeandthesuppliedattributeset.

Spinner（Contextcontext,AttributeSetattrs,intdefStyleAttr）

Constructanewspinnerwiththegivencontext'stheme,thesuppliedattributeset,anddefaultstyleattribute.

Spinner（Contextcontext,AttributeSetattrs,intdefStyleAttr,intmode）

Constructanewspinnerwiththegivencontext'stheme,thesuppliedattributeset,anddefaultstyle.

Spinner（Contextcontext,AttributeSetattrs,intdefStyleAttr,intdefStyleRes,intmode）

Constructanewspinnerwiththegivencontext'stheme,thesuppliedattributeset,anddefaultstyle.

Spinner（Contextcontext,AttributeSetattrs,intdefStyleAttr,intdefStyleRes,intmode,Resources.ThemepopupTheme）

Constructsanewspinnerwiththegivencontext'stheme,thesuppliedattributeset,defaultstyles,popupmode（oneofMODE_DIALOGorMODE_DROPDOWN）,andthecontextagainstwhichthepopupshouldbeinflated.

PublicMethods

CharSequencegetAccessibilityClassName（）

Returntheclassnameofthisobjecttobeusedforaccessibilitypurposes.

intgetBaseline（）

Returntheoffsetofthewidget'stextbaselinefromthewidget'stopboundary.

intgetDropDownHorizontalOffset（）

Gettheconfiguredhorizontaloffsetinpixelsforthespinner'spopupwindowofchoices.

intgetDropDownVerticalOffset（）

Gettheconfiguredverticaloffsetinpixelsforthespinner'spopupwindowofchoices.

intgetDropDownWidth（）

Gettheconfiguredwidthofthespinner'spopupwindowofchoicesinpixels.

intgetGravity（）

Describeshowtheselecteditemviewispositioned.

DrawablegetPopupBackground（）

Getthebackgrounddrawableforthespinner'spopupwindowofchoices.

ContextgetPopupContext（）

CharSequencegetPrompt（）

voidonClick（DialogInterfacedialog,intwhich）

Thismethodwillbeinvokedwhenabuttoninthedialogisclicked.

voidonRestoreInstanceState（Parcelablestate）

Hookallowingaviewtore-applyarepresentationofitsinternalstatethathadpreviouslybeengeneratedbyonSaveInstanceState（）.

ParcelableonSaveInstanceState（）

Hookallowingaviewtogeneratearepresentationofitsinternalstatethatcanlaterbeusedtocreateanewinstancewiththatsamestate.

booleanonTouchEvent（MotionEventevent）

Implementthismethodtohandletouchscreenmotionevents.

booleanperformClick（）

Callthisview'sOnClickListener,ifitisdefined.

voidsetAdapter（SpinnerAdapteradapter）

SetstheSpinnerAdapterusedtoprovidethedatawhichbacksthisSpinner.

voidsetDropDownHorizontalOffset（intpixels）

Setahorizontaloffsetinpixelsforthespinner'spopupwindowofchoices.

voidsetDropDownVerticalOffset（intpixels）

Setaverticaloffsetinpixelsforthespinner'spopupwindowofchoices.

voidsetDropDownW