我为android attrs.xml文件添加了一个属性,用于不同的颜色深浅.在styles.xml文件中,我给出了这些属性颜色,因此它们对于每种样式都是不同的.
Attrs.xml:
<attr name="lightBackground" format="color" />
<attr name="normalBackground" format="color" />
styles.xml:
<style name="AppThemeNight" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">@color/colorPrimaryNight</item>
<item name="colorPrimaryDark">@color/colorPrimaryDarkNight</item>
<item name="colorAccent">@color/colorAccentNight</item>
<item name="drawerArrowStyle">@style/DrawerIcon</item>
<item name="lightBackground">@color/colorPrimaryLightNight</item>
<item name="normalBackground">@color/colorPrimaryNight</item>
</style>
膨胀自定义微调器布局:spinner_layout_adapter.xml:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/spinnerLayoutAdapter_tv_spinnerText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:padding="15dp"
android:text="TextView"
android:textColor="@android:color/white"
android:background="?attr/normalBackground"
android:textSize="16sp"/>
然而,
05-23 14:22:34.833 17231-17231/nl.gemeente.breda.bredaapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: nl.gemeente.breda.bredaapp, PID: 17231
android.view.InflateException: Binary XML file line #3: Binary XML file line #3: Error inflating class android.widget.TextView
Caused by: android.view.InflateException: Binary XML file line #3: Error inflating class android.widget.TextView
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance0(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:430)
at android.view.LayoutInflater.createView(LayoutInflater.java:645)
at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:717)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:785)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:727)
at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
at android.view.LayoutInflater.inflate(LayoutInflater.java:426)
at nl.gemeente.breda.bredaapp.adapter.ServiceAdapter.getView(ServiceAdapter.java:32)
at android.widget.AbsSpinner.onMeasure(AbsSpinner.java:194)
at android.widget.Spinner.onMeasure(Spinner.java:592)
at android.support.v7.widget.AppCompatSpinner.onMeasure(AppCompatSpinner.java:416)
at android.view.View.measure(View.java:19861)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6083)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:19861)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6083)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1117)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:642)
at android.view.View.measure(View.java:19861)
at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:934)
at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java:973)
at android.view.View.measure(View.java:19861)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6083)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:19861)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6083)
at android.support.design.widget.CoordinatorLayout.onMeasureChild(CoordinatorLayout.java:714)
at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:786)
at android.view.View.measure(View.java:19861)
at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:1081)
at android.view.View.measure(View.java:19861)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6083)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139)
at android.view.View.measure(View.java:19861)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6083)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)
at android.view.View.measure(View.java:19861)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6083)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:19861)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6083)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)
at android.view.View.measure(View.java:19861)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6083)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
05-23 14:22:34.833 17231-17231/nl.gemeente.breda.bredaapp E/AndroidRuntime: at com.android.internal.policy.DecorView.onMeasure(DecorView.java:691)
at android.view.View.measure(View.java:19861)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2275)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1366)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1619)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6344)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:874)
at android.view.Choreographer.doCallbacks(Choreographer.java:686)
at android.view.Choreographer.doFrame(Choreographer.java:621)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:860)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6178)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:891)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:781)
Caused by: java.lang.UnsupportedOperationException: Failed to resolve attribute at index 13: TypedValue{t=0x2/d=0x7f010046 a=-1}
at android.content.res.TypedArray.getDrawable(TypedArray.java:925)
at android.view.View.<init>(View.java:4202)
at android.widget.TextView.<init>(TextView.java:710)
at android.widget.TextView.<init>(TextView.java:704)
at android.widget.TextView.<init>(TextView.java:700)
... 71 more
当我使用如下常规颜色更改属性时,它可以正常工作.属性?attr / normalBackground似乎不起作用.
android:background="@color/colorPrimary"
任何人都知道我做错了什么?
解决方法:
您在哪里定义要使用“AppThemeNight”?我用你的代码设置了一个小项目,并定义了“AppThemeNight”将在清单中使用,一切都按预期工作.当我删除清单中对“AppThemeNight”的引用时,应用程序出错并出现以下错误:
Caused by: java.lang.UnsupportedOperationException: Failed to resolve attribute at index 13: TypedValue{t=0x2/d=0x7f0200c9 a=-1}
这就是我认为你所看到的,所以我认为你没有指定你的主题应该被使用.如果您是,请发布,我们将再次尝试解决此问题.作为参考,这是我的测试清单工作:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.attributes">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppThemeNight">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>