Android：带有自定义布局和日/夜主题的按钮

我试图用自定义布局和2个主题（白天和黑夜）创建按钮。Android：带有自定义布局和日/夜主题的按钮

按钮布局具有背景图像（可绘制）和文本（字符串）。

主题必须在可绘制的（我有两个PNG）和文本颜色上有所不同。

我的方法如下：

在按键布局设置背景绘制作为选择：

这是可拉伸/ btn_basket_calls.xml

<item 
    android:drawable="@drawable/btn_basket_calls_pressed" 
    android:state_focused="true" 
    android:state_pressed="true" 
    /> 

<item 
    android:drawable="@drawable/btn_basket_calls_pressed" 
    android:state_focused="false" 
    android:state_pressed="true" 
    /> 

<item 
    android:drawable="@drawable/btn_basket_calls_selected" 
    android:state_focused="true" 
    /> 

<item 
    android:drawable="@drawable/btn_basket_calls_disabled" 
    android:state_enabled="false" 
    /> 

<item 
    android:drawable="?attr/btn_basket_calls_default" 
    android:state_focused="false" 
    android:state_pressed="false" 
    />

“默认” 可绘是属性 “btn_basket_calls_default”，这是在attrs.xml限定的参考如下：
的AppTheme具有styles.xml中的两个子主题：

@绘制/ btn_basket_calls_d_default

@绘制/ btn_basket_calls_n_default

AFAIK它应该工作:)不过该项目符合不错，但给出了一个运行时异常：

E/AndroidRuntime(1154): FATAL EXCEPTION: main 
E/AndroidRuntime(1154): java.lang.RuntimeException: Unable to start activity ComponentInfo{a.daynighttest/a.daynighttest.DayNightTestActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class <unknown> 
E/AndroidRuntime(1154): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647) 
E/AndroidRuntime(1154): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663) 
E/AndroidRuntime(1154): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 
E/AndroidRuntime(1154): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931) 
E/AndroidRuntime(1154): at android.os.Handler.dispatchMessage(Handler.java:99) 
E/AndroidRuntime(1154): at android.os.Looper.loop(Looper.java:130) 
E/AndroidRuntime(1154): at android.app.ActivityThread.main(ActivityThread.java:3683) 
E/AndroidRuntime(1154): at java.lang.reflect.Method.invokeNative(Native Method) 
E/AndroidRuntime(1154): at java.lang.reflect.Method.invoke(Method.java:507) 
E/AndroidRuntime(1154): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 
E/AndroidRuntime(1154): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 
E/AndroidRuntime(1154): at dalvik.system.NativeStart.main(Native Method) 
E/AndroidRuntime(1154): Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class <unknown> 
E/AndroidRuntime(1154): at android.view.LayoutInflater.createView(LayoutInflater.java:518) 
E/AndroidRuntime(1154): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) 
E/AndroidRuntime(1154): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568) 
E/AndroidRuntime(1154): at android.view.LayoutInflater.rInflate(LayoutInflater.java:623) 
E/AndroidRuntime(1154): at android.view.LayoutInflater.inflate(LayoutInflater.java:408) 
E/AndroidRuntime(1154): at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 
E/AndroidRuntime(1154): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 
E/AndroidRuntime(1154): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) 
E/AndroidRuntime(1154): at android.app.Activity.setContentView(Activity.java:1657) 
E/AndroidRuntime(1154): at a.daynighttest.DayNightTestActivity.onCreate(DayNightTestActivity.java:13) 
E/AndroidRuntime(1154): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
E/AndroidRuntime(1154): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611) 
E/AndroidRuntime(1154): ... 11 more 
E/AndroidRuntime(1154): Caused by: java.lang.reflect.InvocationTargetException 
E/AndroidRuntime(1154): at java.lang.reflect.Constructor.constructNative(Native Method) 
E/AndroidRuntime(1154): at java.lang.reflect.Constructor.newInstance(Constructor.java:415) 
E/AndroidRuntime(1154): at android.view.LayoutInflater.createView(LayoutInflater.java:505) 
E/AndroidRuntime(1154): ... 22 more 
E/AndroidRuntime(1154): Caused by: android.content.res.Resources$NotFoundException: File res/drawable/btn_basket_calls.xml from drawable resource ID #0x7f020000 
E/AndroidRuntime(1154): at android.content.res.Resources.loadDrawable(Resources.java:1697) 
E/AndroidRuntime(1154): at android.content.res.TypedArray.getDrawable(TypedArray.java:601) 
E/AndroidRuntime(1154): at android.view.View.<init>(View.java:1951) 
E/AndroidRuntime(1154): at android.view.View.<init>(View.java:1899) 
E/AndroidRuntime(1154): at android.view.ViewGroup.<init>(ViewGroup.java:286) 
E/AndroidRuntime(1154): at android.widget.LinearLayout.<init>(LinearLayout.java:120) 
E/AndroidRuntime(1154): ... 25 more 
E/AndroidRuntime(1154): Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #31: <item> tag requires a 'drawable' attribute or child tag defining a drawable 
E/AndroidRuntime(1154): at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:167) 
E/AndroidRuntime(1154): at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787) 
E/AndroidRuntime(1154): at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728) 
E/AndroidRuntime(1154): at android.content.res.Resources.loadDrawable(Resources.java:1694) 
E/AndroidRuntime(1154): ... 30 more

有关详细信息，请参阅附加的完整Eclipse项目。

谢谢！ :)

来源

2012-04-06 Maurix

你应该要补充一点：

<?xml version="1.0" encoding="UTF-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android">

来开始和这个：

</selector>

结束btn_basket_calls.xml文件。

来源

2012-04-06 15:22:16

Android：带有自定义布局和日/夜主题的按钮

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