android - 来自可绘制资源 ID 的异常 android.content.res.Resources$NotFoundException : File res/drawable/my. xml

Question

这个 xml 有什么问题，我正在尝试获得按钮按下的感觉。我遇到了一个异常(exception)，我无法理解。 ResourceNotFound

在我的 layout.xml 中

<Button
    android:id="@+id/submit"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/submitbuttonpress"
    android:text="Submit"
    android:textColor="#eeeee4"
    android:typeface="monospace" />

我在drawable文件夹中的submitbuttonpress.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="false" android:background="#AAAAAA" />
    <item android:state_pressed="true" android:background="#777777" />
</selector>

异常(logcat)

07-17 19:07:25.072: E/AndroidRuntime(2225): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.taxeeta/com.itaxeeta.BookingExperience}: android.view.InflateException: Binary XML file line #326: Error inflating class android.widget.Button
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.os.Handler.dispatchMessage(Handler.java:99)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.os.Looper.loop(Looper.java:130)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.app.ActivityThread.main(ActivityThread.java:3687)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at java.lang.reflect.Method.invokeNative(Native Method)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at java.lang.reflect.Method.invoke(Method.java:507)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at dalvik.system.NativeStart.main(Native Method)
07-17 19:07:25.072: E/AndroidRuntime(2225): Caused by: android.view.InflateException: Binary XML file line #326: Error inflating class android.widget.Button
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.createView(LayoutInflater.java:518)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:216)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.app.Activity.setContentView(Activity.java:1660)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at com.itaxeeta.BookingExperience.onCreate(BookingExperience.java:100)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
07-17 19:07:25.072: E/AndroidRuntime(2225):     ... 11 more
07-17 19:07:25.072: E/AndroidRuntime(2225): Caused by: java.lang.reflect.InvocationTargetException
07-17 19:07:25.072: E/AndroidRuntime(2225):     at java.lang.reflect.Constructor.constructNative(Native Method)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at java.lang.reflect.Constructor.newInstance(Constructor.java:415)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.LayoutInflater.createView(LayoutInflater.java:505)
07-17 19:07:25.072: E/AndroidRuntime(2225):     ... 27 more
07-17 19:07:25.072: E/AndroidRuntime(2225): Caused by: android.content.res.Resources$NotFoundException: File res/drawable/nextprevbuttonpress.xml from drawable resource ID #0x7f02003e
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.content.res.Resources.loadDrawable(Resources.java:1697)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.view.View.<init>(View.java:1951)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.widget.TextView.<init>(TextView.java:389)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.widget.Button.<init>(Button.java:108)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.widget.Button.<init>(Button.java:104)
07-17 19:07:25.072: E/AndroidRuntime(2225):     ... 30 more
07-17 19:07:25.072: E/AndroidRuntime(2225): Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #3: <item> tag requires a 'drawable' attribute or child tag defining a drawable
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:167)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
07-17 19:07:25.072: E/AndroidRuntime(2225):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
07-17 19:07:25.072: E/AndroidRuntime(2225):     ... 35 more

Answer 1

试试这个

在选择器状态下，需要添加可绘制对象，在您的情况下，您希望在选择器状态下添加颜色。因此可以使用资源中的颜色创建可绘制对象。它将作为 ColorDrawable

工作

请检查以下代码

<selector xmlns:android="http://schemas.android.com/apk/res/android">

        <item android:drawable="@drawable/clr_normal" android:state_pressed="false"/>
        <item android:drawable="@drawable/clr_pressed" android:state_pressed="true"/>

    </selector>

values/string.xml 用于颜色

 <drawable name="clr_normal">#AAAAAA</drawable>
<drawable name="clr_pressed">#777777</drawable>