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在启动应用程序时，我面临以下错误。

07-03 01:47:06.218: E/AndroidRuntime(1171): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.wifidemo/com.example.wifidemo.WifiDemoActivity}: android.view.InflateException: Binary XML file line #1: Error inflating class android.widget.RelativeLayout
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1970)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1995)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.app.ActivityThread.access$600(ActivityThread.java:128)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1161)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.os.Handler.dispatchMessage(Handler.java:99)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.os.Looper.loop(Looper.java:137)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.app.ActivityThread.main(ActivityThread.java:4517)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at java.lang.reflect.Method.invokeNative(Native Method)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at java.lang.reflect.Method.invoke(Method.java:511)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:995)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:762)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at dalvik.system.NativeStart.main(Native Method)
07-03 01:47:06.218: E/AndroidRuntime(1171): Caused by: android.view.InflateException: Binary XML file line #1: Error inflating class android.widget.RelativeLayout
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.LayoutInflater.createView(LayoutInflater.java:606)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.LayoutInflater.onCreateView(LayoutInflater.java:653)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:678)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:283)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.app.Activity.setContentView(Activity.java:1927)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at com.example.wifidemo.WifiDemoActivity.onCreate(WifiDemoActivity.java:31)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.app.Activity.performCreate(Activity.java:4597)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1053)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1934)
07-03 01:47:06.218: E/AndroidRuntime(1171):     ... 11 more
07-03 01:47:06.218: E/AndroidRuntime(1171): Caused by: java.lang.reflect.InvocationTargetException
07-03 01:47:06.218: E/AndroidRuntime(1171):     at java.lang.reflect.Constructor.constructNative(Native Method)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.LayoutInflater.createView(LayoutInflater.java:586)
07-03 01:47:06.218: E/AndroidRuntime(1171):     ... 23 more
07-03 01:47:06.218: E/AndroidRuntime(1171): Caused by: android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x1/d=0x7f060000 a=-1 r=0x7f060000}
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.content.res.Resources.loadDrawable(Resources.java:1936)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.content.res.TypedArray.getDrawable(TypedArray.java:602)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.View.<init>(View.java:2867)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.View.<init>(View.java:2804)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.view.ViewGroup.<init>(ViewGroup.java:696)
07-03 01:47:06.218: E/AndroidRuntime(1171):     at android.widget.RelativeLayout.<init>(RelativeLayout.java:174)

我已经清理并构建了项目，但仍然发生异常。

XML 代码。

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@style/AppBaseTheme"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".WifiDemoActivity" >

    <TextView
        android:id="@+id/tv_wifi_statustext"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Wifi Status" />

    <ProgressBar
        android:id="@+id/scan_bar"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/tv_wifi_statustext"
        android:layout_alignRight="@+id/button_scan"
        android:layout_below="@+id/button_wifi_on_off"
        android:layout_marginTop="20dp" />

    <ToggleButton
        android:id="@+id/button_wifi_on_off"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/tv_wifi_statustext"
        android:layout_marginLeft="70dp"
        android:layout_toRightOf="@+id/tv_wifi_statustext"
        android:text="Off" />

    <Button
        android:id="@+id/button_scan"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/button_wifi_on_off"
        android:layout_toRightOf="@+id/button_wifi_on_off"
        android:text="@string/Scan" />

    <TextView
        android:id="@+id/txt_status"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_alignLeft="@+id/scan_bar"
        android:layout_alignRight="@+id/scan_bar"
        android:layout_below="@+id/scan_bar"
        android:layout_marginTop="20dp"/>

</RelativeLayout>

活动部分

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_wifi_demo);
    initializeView();
    initializeListener();
}

private void initializeListener() {
    wifistatelistener = new WifistateListener();
    wifi_ONOFF.setOnCheckedChangeListener(wifistatelistener);
}

private void initializeView() {
    wifi_ONOFF = (ToggleButton) findViewById(R.id.button_wifi_on_off);
    button_wifiscan = (Button) findViewById(R.id.button_scan);
    wifiscanprogressBar = (ProgressBar) findViewById(R.id.scan_bar);
    status = (TextView) findViewById(R.id.txt_status);
}
4

1 回答 1

0

我相信，这是罪魁祸首：

android:background="@style/AppBaseTheme"

android:background期望一些可绘制的，并且样式显然不是它想要的。

我不知道AppBaseTheme包含什么，所以我不能确切地说在你的情况下解决这个问题的最佳方法是什么，但我有一些建议。最简单的一种是简单地将背景设置为一些明确的图像。更复杂的解决方案是在主题中声明一个属性，将主题应用于应用程序或活动（如果尚未应用），并使用?attr/语法引用此属性。

于 2013-07-02T20:38:16.693 回答