我是android工作室的新手.我几天前开始学习androID.我从简单的空白活动开始,并从“新波士顿”教程中学习.尽管我在执行应用程序后立即应用了主题,但还是遇到了以下错误.
STYLE.XML代码:
<resources> <!-- Base application theme. --> <style name="Apptheme" parent="theme.AppCompat"> <!-- Customize your theme here. --> <item name="colorPrimary">@color/colorPrimary</item> <item name="colorPrimaryDark">@color/colorPrimaryDark</item> <item name="colorAccent">@color/colorAccent</item> </style> <style name="Apptheme.NoActionbar"> <item name="windowActionbar">false</item> <item name="windowNoTitle">true</item> </style> <style name="Apptheme.AppbarOverlay" parent="themeOverlay.AppCompat.Dark.Actionbar" /> <style name="Apptheme.PopupOverlay" parent="themeOverlay.AppCompat.light" /> </resources>
布局:主要活动代码:
<?xml version="1.0" enCoding="utf-8"?><androID.support.design.Widget.CoordinatorLayout xmlns:androID="http://schemas.androID.com/apk/res/androID" xmlns:app="http://schemas.androID.com/apk/res-auto" xmlns:tools="http://schemas.androID.com/tools" androID:layout_wIDth="match_parent" androID:layout_height="match_parent" tools:context="com.example.wardahamk.changingtheme.MainActivity"> <androID.support.design.Widget.AppbarLayout androID:layout_wIDth="match_parent" androID:layout_height="wrap_content" androID:theme="@style/Apptheme.AppbarOverlay"> </androID.support.design.Widget.AppbarLayout> <include layout="@layout/content_main" androID:ID="@+ID/include" /> <androID.support.design.Widget.floatingActionbutton androID:ID="@+ID/fab" androID:layout_wIDth="wrap_content" androID:layout_height="wrap_content" androID:layout_gravity="bottom|end" androID:layout_margin="@dimen/fab_margin" app:srcCompat="@androID:drawable/ic_dialog_email" /> <button androID:ID="@+ID/button" androID:layout_wIDth="wrap_content" androID:layout_height="0dp" androID:text="button" app:layout_anchor="@+ID/include" /> <androID.support.v7.Widget.Toolbar androID:ID="@+ID/toolbar" androID:layout_wIDth="match_parent" androID:layout_height="?attr/actionbarSize" androID:background="?attr/colorPrimary" app:popuptheme="@style/Apptheme.PopupOverlay" /></androID.support.design.Widget.CoordinatorLayout>
布局:内容活动代码:
<?xml version="1.0" enCoding="utf-8"?><androID.support.constraint.ConstraintLayout xmlns:androID="http://schemas.androID.com/apk/res/androID" xmlns:app="http://schemas.androID.com/apk/res-auto" xmlns:tools="http://schemas.androID.com/tools" androID:layout_wIDth="match_parent" androID:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_vIEw_behavior" tools:context="com.example.wardahamk.changingtheme.MainActivity" tools:showIn="@layout/activity_main"> <TextVIEw androID:layout_wIDth="wrap_content" androID:layout_height="wrap_content" androID:text="Hello World!" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintleft_toleftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constrainttop_totopOf="parent" /></androID.support.constraint.ConstraintLayout>
Gradle脚本:build.gradle(项目:主题更改):
buildscript { repositorIEs { jcenter() } dependencIEs { classpath 'com.androID.tools.build:gradle:2.3.2' // NOTE: Do not place your application dependencIEs here; they belong // in the indivIDual module build.gradle files } } allprojects { repositorIEs { jcenter() } } task clean(type: Delete) { delete rootProject.buildDir }
Gradle脚本:build.gradle(Module App)
apply plugin: 'com.androID.application'androID { compileSdkVersion 25 buildToolsversion "25.0.3" defaultConfig { applicationID "com.example.wardahamk.changingtheme" minSdkVersion 9 targetSdkVersion 25 versionCode 1 versionname "1.0" testInstrumentationRunner "androID.support.test.runner.AndroIDJUnitRunner" } buildTypes { release { MinifyEnabled false proguardfiles getDefaultProguardfile('proguard-androID.txt'), 'proguard-rules.pro' } }}dependencIEs { compile filetree(dir: 'libs', include: ['*.jar']) androIDTestCompile('com.androID.support.test.espresso:espresso-core:2.2.2', { exclude group: 'com.androID.support', module: 'support-annotations' }) compile 'com.androID.support:appcompat-v7:25.3.1' compile 'com.androID.support.constraint:constraint-layout:1.0.2' compile 'com.androID.support:design:25.3.1' testCompile 'junit:junit:4.12'}
我一直在寻找解决方案,但无法解决.如果您能帮助我找出解决方案,我将非常感谢.多谢先进!
解决方法:
使用theme.AppCompat.light或theme.AppCompat.light.DarkActionbar主题.
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