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
要更改菜单项文本颜色,请使用下面的代码
<style name="AppToolbar" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:itemTextAppearance">@style/menu_item_color</item>
</style>
在哪里
<style name="menu_item_color">
<item name="android:textColor">@color/app_font_color</item>
</style>
其他回答
多亏了麦克斯。mussterman,这是我在第22关的解决方案:
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
MenuItem searchMenuItem = menu.findItem(R.id.search);
SearchView searchView = (SearchView) searchMenuItem.getActionView();
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setSubmitButtonEnabled(true);
searchView.setOnQueryTextListener(this);
setMenuTextColor(menu, R.id.displaySummary, R.string.show_summary);
setMenuTextColor(menu, R.id.about, R.string.text_about);
setMenuTextColor(menu, R.id.importExport, R.string.import_export);
setMenuTextColor(menu, R.id.preferences, R.string.settings);
return true;
}
private void setMenuTextColor(Menu menu, int menuResource, int menuTextResource) {
MenuItem item = menu.findItem(menuResource);
SpannableString s = new SpannableString(getString(menuTextResource));
s.setSpan(new ForegroundColorSpan(Color.BLACK), 0, s.length(), 0);
item.setTitle(s);
}
硬编码的颜色。BLACK可以成为setMenuTextColor方法的附加参数。此外,我只使用这个菜单项是android:showAsAction="never"。
我找到了,尤利卡!!
在你的应用主题中:
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:actionBarStyle">@style/ActionBarTheme</item>
<!-- backward compatibility -->
<item name="actionBarStyle">@style/ActionBarTheme</item>
</style>
这是你的动作栏主题:
<style name="ActionBarTheme" parent="@style/Widget.AppCompat.Light.ActionBar.Solid.Inverse">
<item name="android:background">@color/actionbar_bg_color</item>
<item name="popupTheme">@style/ActionBarPopupTheme</item
<!-- backward compatibility -->
<item name="background">@color/actionbar_bg_color</item>
</style>
这是你弹出的主题:
<style name="ActionBarPopupTheme">
<item name="android:textColor">@color/menu_text_color</item>
<item name="android:background">@color/menu_bg_color</item>
</style>
干杯,)
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.
为了改变文本颜色,你可以为MenuItem设置一个自定义视图,然后你可以为文本定义颜色。 示例代码:MenuItem.setActionView()
最简单的方法为单个工具栏定制菜单颜色,而不是为AppTheme
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay.MenuBlue">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"/>
</android.support.design.widget.AppBarLayout>
xml上常用的工具栏
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>
自定义工具栏样式
<style name="AppTheme.AppBarOverlay.MenuBlue">
<item name="actionMenuTextColor">@color/blue</item>
</style>