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
将它添加到我的styles.xml中对我有用
<item name="android:textColorPrimary">?android:attr/textColorPrimaryInverse</item>
我使用的是材质设计,当工具栏在一个小屏幕上时,点击更多选项会显示一个空白的白色下拉框。为了解决这个问题,我想在主AppTheme中添加了这个:
<style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
<item name="android:itemTextAppearance">@style/menuItem</item>
</style>
然后创建了一个样式,你可以将菜单项的textColor设置为你想要的颜色。
<style name="menuItem" parent="Widget.AppCompat.TextView.SpinnerItem">
<item name="android:textColor">@color/black</item>
</style>
父名称widget。appcompat . textview . spinneritem我不认为这太重要,它应该仍然工作。
如果你正在使用新的工具栏,主题为theme . appcompat . light。NoActionBar,你可以用下面的方式设置它的样式。
<style name="ToolbarTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:textColorPrimary">@color/my_color1</item>
<item name="android:textColorSecondary">@color/my_color2</item>
<item name="android:textColor">@color/my_color3</item>
</style>`
根据我得到的结果, textColorPrimary是显示你的活动名称的文本颜色,这是工具栏的主要文本。 textColorSecondary是字幕和更多选项(3点)按钮的文本颜色。(是的,它根据这个属性改变了它的颜色!) textColor是包括菜单在内的所有其他文本的颜色。 最后将主题设置为工具栏
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
app:theme="@style/ToolbarTheme"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:minHeight="?attr/actionBarSize"/>
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.
我是这样编程的:
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.changeip_card_menu, menu);
for(int i = 0; i < menu.size(); i++) {
MenuItem item = menu.getItem(i);
SpannableString spanString = new SpannableString(menu.getItem(i).getTitle().toString());
spanString.setSpan(new ForegroundColorSpan(Color.BLACK), 0, spanString.length(), 0); //fix the color to white
item.setTitle(spanString);
}
return true;
}