我可以改变一个菜单项的背景颜色在安卓?
如果有人对此有任何解决方案,请让我知道。最后一个选项显然是自定义,但是否有任何方法可以在不自定义的情况下更改文本颜色。
我可以改变一个菜单项的背景颜色在安卓?
如果有人对此有任何解决方案,请让我知道。最后一个选项显然是自定义,但是否有任何方法可以在不自定义的情况下更改文本颜色。
当前回答
我的情况是在选项菜单中设置文本颜色(主应用程序菜单显示在菜单按钮按下)。
在API 16中测试,使用AppCompat -v7-27.0.2库,MainActivity的AppCompat活动和AndroidManifest.xml应用程序的AppCompat主题。
styles.xml:
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="actionBarPopupTheme">@style/PopupTheme</item>
</style>
<style name="PopupTheme" parent="@style/ThemeOverlay.AppCompat.Light">
<item name="android:textColorSecondary">#f00</item>
</style>
不知道textColorSecondary是否影响其他元素,但它控制菜单文本的颜色。
我搜索了一些关于这个主题的示例,但所有现成的代码片段都不起作用。
所以我想用appcompat-v7库的源代码(特别是.aar包的res文件夹)来研究它。
不过在我的例子中,我使用了带有爆炸性.aar依赖项的Eclipse。因此,我可以更改默认样式并检查结果。不知道如何爆炸库与Gradle或Android Studio直接使用。它值得进行另一项调查。
所以我的目的是找到res/values/values.xml文件中用于菜单文本的颜色(我几乎确定颜色在那里)。
I opened that file, then duplicated all colors, put them below the default ones to override them and assigned #f00 value to all of them. Start the app. Many elements had red background or text color. And the menu items too. That was what I needed. Removing my added colors by blocks of 5-10 lines I ended with the secondary_text_default_material_light color item. Searching that name in the files within the res folder (or better within res/colors) I found only one occurrence in the color/abc_secondary_text_material_light.xml file (I used Sublime Text for these operations so it's easier to find thing I need). Back to the values.xml 8 usages were found for the @color/abc_secondary_text_material_light. It was a Light theme so 4 left in 2 themes: Base.ThemeOverlay.AppCompat.Light and Platform.AppCompat.Light. The first theme was a child of the second one so there were only 2 attributes with that color resource: android:textColorSecondary and android:textColorTertiaryin the Base.ThemeOverlay.AppCompat.Light. Changing their values directly in the values.xml and running the app I found that the final correct attribute was android:textColorSecondary. Next I needed a theme or another attribute so I could change it in my app's style.xml (because my theme had as the parent the Theme.AppCompat.Light and not the ThemeOverlay.AppCompat.Light). I searched in the same file for the Base.ThemeOverlay.AppCompat.Light. It had a child ThemeOverlay.AppCompat.Light. Searching for the ThemeOverlay.AppCompat.Light I found its usage in the Base.Theme.AppCompat.Light.DarkActionBar theme as the actionBarPopupTheme attribute value. My app's theme Theme.AppCompat.Light.DarkActionBar was a child of the found Base.Theme.AppCompat.Light.DarkActionBar so I could use that attribute in my styles.xml without problems. As it's seen in the example code above I created a child theme from the mentioned ThemeOverlay.AppCompat.Light and changed the android:textColorSecondary attribute.
其他回答
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.search, menu);
MenuItem myActionMenuItem = menu.findItem( R.id.action_search);
SearchView searchView = (SearchView) myActionMenuItem.getActionView();
EditText searchEditText = (EditText) searchView.findViewById(android.support.v7.appcompat.R.id.search_src_text);
searchEditText.setTextColor(Color.WHITE); //You color here
如果你使用的菜单是<android.support.design.widget.NavigationView />,那么只需在NavigationView中添加以下一行:
app:itemTextColor="your color"
也可用colorTint图标,它将覆盖颜色为您的图标以及。为此,你必须添加以下一行:
app:itemIconTint="your color"
例子:
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:itemTextColor="@color/color_white"
app:itemIconTint="@color/color_white"
android:background="@color/colorPrimary"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer"/>
希望对你有所帮助。
添加textColor如下所示
<style name="MyTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light">
<item name="android:textColor">@color/radio_color_gray</item>
</style>
并在xml文件中的工具栏中使用它
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="@style/MyTheme.PopupOverlay" />
简短的回答是肯定的。幸运的你! 要做到这一点,你需要覆盖Android默认样式的一些样式:
首先,看看Android中主题的定义:
<style name="Theme.IconMenu">
<!-- Menu/item attributes -->
<item name="android:itemTextAppearance">@android:style/TextAppearance.Widget.IconMenu.Item</item>
<item name="android:itemBackground">@android:drawable/menu_selector</item>
<item name="android:itemIconDisabledAlpha">?android:attr/disabledAlpha</item>
<item name="android:horizontalDivider">@android:drawable/divider_horizontal_bright</item>
<item name="android:verticalDivider">@android:drawable/divider_vertical_bright</item>
<item name="android:windowAnimationStyle">@android:style/Animation.OptionsPanel</item>
<item name="android:moreIcon">@android:drawable/ic_menu_more</item>
<item name="android:background">@null</item>
</style>
因此,菜单中文本的外观在@android:style/ textappearance . widget。iconmenu . item中 现在,在样式的定义中:
<style name="TextAppearance.Widget.IconMenu.Item" parent="TextAppearance.Small">
<item name="android:textColor">?textColorPrimaryInverse</item>
</style>
现在我们有了问题中的颜色名称,如果你查看系统资源的颜色文件夹:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_enabled="false" android:color="@android:color/bright_foreground_light_disabled" />
<item android:state_window_focused="false" android:color="@android:color/bright_foreground_light" />
<item android:state_pressed="true" android:color="@android:color/bright_foreground_light" />
<item android:state_selected="true" android:color="@android:color/bright_foreground_light" />
<item android:color="@android:color/bright_foreground_light" />
<!-- not selected -->
</selector>
最后,以下是你需要做的事情:
TextAppearance.Widget.IconMenu覆盖”。项目”,创造自己的风格。然后将它链接到您自己的选择器,使其成为您想要的方式。 希望这对你有所帮助。 好运!
当菜单项膨胀时,我使用html标记来更改单个项目的文本颜色。希望对大家有所帮助。
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
menu.findItem(R.id.main_settings).setTitle(Html.fromHtml("<font color='#ff3824'>Settings</font>"));
return true;
}