Android自定義ActionBar背景顏色(從原始碼分析)
阿新 • • 發佈:2019-02-01
Android自定義ActionBar背景顏色
修改前後效果圖:
在style.xml里加一行程式碼搞定
那為什麼是"colorPrimary"呢,一層一層找<!-- Base application theme. --> <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> <!-- Customize your theme here. --> <item name="colorPrimary">@color/green</item> </style>
<style name="Theme.AppCompat.Light.DarkActionBar" parent="Base.Theme.AppCompat.Light.DarkActionBar" />
這裡已經出現“colorPrimary"了
<style name="Base.Theme.AppCompat.Light.DarkActionBar" parent="Base.Theme.AppCompat.Light"> <item name="actionBarPopupTheme">@style/ThemeOverlay.AppCompat.Light</item> <item name="actionBarWidgetTheme">@null</item> <item name="actionBarTheme">@style/ThemeOverlay.AppCompat.Dark.ActionBar</item> <!-- Panel attributes --> <item name="listChoiceBackgroundIndicator">@drawable/abc_list_selector_holo_dark</item> <item name="colorPrimaryDark">@color/primary_dark_material_dark</item> <item name="colorPrimary">@color/primary_material_dark</item> </style>
<style name="Base.Theme.AppCompat.Light" parent="Base.V7.Theme.AppCompat.Light"></style>
找到”actionBarStyle“<style name="Base.V7.Theme.AppCompat.Light" parent="Platform.AppCompat.Light"> <item name="windowActionBar">true</item> <item name="windowActionBarOverlay">false</item> <!-- Used by MediaRouter --> <item name="isLightTheme">true</item> <item name="selectableItemBackground">@drawable/abc_item_background_holo_light</item> <item name="selectableItemBackgroundBorderless">?attr/selectableItemBackground</item> <item name="homeAsUpIndicator">@drawable/abc_ic_ab_back_mtrl_am_alpha</item> <item name="dividerVertical">@drawable/abc_list_divider_mtrl_alpha</item> <item name="dividerHorizontal">@drawable/abc_list_divider_mtrl_alpha</item> <!-- Action Bar Styles --> <item name="actionBarTabStyle">@style/Widget.AppCompat.Light.ActionBar.TabView</item> <item name="actionBarTabBarStyle">@style/Widget.AppCompat.Light.ActionBar.TabBar</item> <item name="actionBarTabTextStyle">@style/Widget.AppCompat.Light.ActionBar.TabText</item> <item name="actionButtonStyle">@style/Widget.AppCompat.Light.ActionButton</item> <item name="actionOverflowButtonStyle">@style/Widget.AppCompat.Light.ActionButton.Overflow</item> <item name="actionOverflowMenuStyle">@style/Widget.AppCompat.Light.PopupMenu.Overflow</item> <item name="actionBarStyle">@style/Widget.AppCompat.Light.ActionBar.Solid</item></span> <item name="actionBarSplitStyle">?attr/actionBarStyle</item> <item name="actionBarWidgetTheme">@null</item> <item name="actionBarTheme">@style/ThemeOverlay.AppCompat.ActionBar</item> <item name="actionBarSize">@dimen/abc_action_bar_default_height_material</item> <item name="actionBarDivider">?attr/dividerVertical</item> <item name="actionBarItemBackground">?attr/selectableItemBackgroundBorderless</item> <item name="actionMenuTextAppearance">@style/TextAppearance.AppCompat.Widget.ActionBar.Menu</item> <item name="actionMenuTextColor">?android:attr/textColorPrimaryDisableOnly</item> <!-- Action Mode --> <item name="actionModeStyle">@style/Widget.AppCompat.ActionMode</item> <item name="actionModeBackground">@drawable/abc_cab_background_top_material</item> <item name="actionModeSplitBackground">?attr/colorPrimaryDark</item> <item name="actionModeCloseDrawable">@drawable/abc_ic_ab_back_mtrl_am_alpha</item> <item name="actionModeCloseButtonStyle">@style/Widget.AppCompat.ActionButton.CloseMode</item> <item name="actionModeCutDrawable">@drawable/abc_ic_menu_cut_mtrl_alpha</item> <item name="actionModeCopyDrawable">@drawable/abc_ic_menu_copy_mtrl_am_alpha</item> <item name="actionModePasteDrawable">@drawable/abc_ic_menu_paste_mtrl_am_alpha</item> <item name="actionModeSelectAllDrawable">@drawable/abc_ic_menu_selectall_mtrl_alpha</item> <item name="actionModeShareDrawable">@drawable/abc_ic_menu_share_mtrl_alpha</item> <!-- Dropdown Spinner Attributes --> <item name="actionDropDownStyle">@style/Widget.AppCompat.Light.Spinner.DropDown.ActionBar</item> <!-- Panel attributes --> <item name="panelMenuListWidth">@dimen/abc_panel_menu_list_width</item> <item name="panelMenuListTheme">@style/Theme.AppCompat.CompactMenu</item> <item name="panelBackground">@drawable/abc_menu_hardkey_panel_mtrl_mult</item> <item name="android:panelBackground">@android:color/transparent</item> <item name="listChoiceBackgroundIndicator">@drawable/abc_list_selector_holo_light</item> <!-- List attributes --> <item name="textAppearanceListItem">@style/TextAppearance.AppCompat.Subhead</item> <item name="textAppearanceListItemSmall">@style/TextAppearance.AppCompat.Subhead</item> <item name="listPreferredItemHeight">64dp</item> <item name="listPreferredItemHeightSmall">48dp</item> <item name="listPreferredItemHeightLarge">80dp</item> <item name="listPreferredItemPaddingLeft">16dip</item> <item name="listPreferredItemPaddingRight">16dip</item> <!-- Required for use of support_simple_spinner_dropdown_item.xml --> <item name="spinnerDropDownItemStyle">@style/Widget.AppCompat.DropDownItem.Spinner</item> <item name="dropdownListPreferredItemHeight">?attr/listPreferredItemHeightSmall</item> <!-- Popup Menu styles --> <item name="popupMenuStyle">@style/Widget.AppCompat.Light.PopupMenu</item> <item name="textAppearanceLargePopupMenu">@style/TextAppearance.AppCompat.Light.Widget.PopupMenu.Large</item> <item name="textAppearanceSmallPopupMenu">@style/TextAppearance.AppCompat.Light.Widget.PopupMenu.Small</item> <item name="listPopupWindowStyle">@style/Widget.AppCompat.ListPopupWindow</item> <item name="dropDownListViewStyle">@style/Widget.AppCompat.ListView.DropDown</item> <!-- SearchView attributes --> <item name="searchViewStyle">@style/Widget.AppCompat.Light.SearchView</item> <item name="android:dropDownItemStyle">@style/Widget.AppCompat.DropDownItem.Spinner</item> <item name="textColorSearchUrl">@color/abc_search_url_text</item> <item name="textAppearanceSearchResultTitle">@style/TextAppearance.AppCompat.SearchResult.Title</item> <item name="textAppearanceSearchResultSubtitle">@style/TextAppearance.AppCompat.SearchResult.Subtitle</item> <!-- ShareActionProvider attributes --> <item name="activityChooserViewStyle">@style/Widget.AppCompat.Light.ActivityChooserView</item> <!-- Toolbar styles --> <item name="toolbarStyle">@style/Widget.AppCompat.Toolbar</item> <item name="toolbarNavigationButtonStyle">@style/Widget.AppCompat.Toolbar.Button.Navigation</item> <item name="android:editTextStyle">@style/Widget.AppCompat.EditText</item> <item name="editTextBackground">@drawable/abc_edit_text_material</item> <item name="editTextColor">?android:attr/textColorPrimary</item> <!-- Color palette --> <item name="colorPrimaryDark">@color/primary_dark_material_light</item> <item name="colorPrimary">@color/primary_material_light</item> <item name="colorAccent">@color/accent_material_light</item> <item name="colorControlNormal">?android:attr/textColorSecondary</item> <item name="colorControlActivated">?attr/colorAccent</item> <item name="colorControlHighlight">@color/ripple_material_light</item> <item name="colorSwitchThumbNormal">@color/switch_thumb_normal_material_light</item> <item name="drawerArrowStyle">@style/Widget.AppCompat.DrawerArrowToggle</item> <item name="switchStyle">@style/Widget.AppCompat.CompoundButton.Switch</item> </style>
<style name="Widget.AppCompat.Light.ActionBar.Solid" parent="Base.Widget.AppCompat.Light.ActionBar.Solid"></style>
終於找到了
<style name="Base.Widget.AppCompat.Light.ActionBar.Solid">
<item name="background">?attr/colorPrimary</item></span>
<item name="backgroundStacked">?attr/colorPrimary</item>
<item name="backgroundSplit">?attr/colorPrimary</item>
</style>
最後看定義註釋,By default,the color applied to the action bar background,似乎明白了什麼。 <!--
The primary branding color for the app. By default, this is the color applied to the
action bar background.
-->
<attr name="colorPrimary" format="color" />