将 TabSpec 添加到 TabHost 时 Android 应用程序崩溃 - "Resource ID not valid"

Question

我已关注Android tutorial for TabLayout ，我现在尝试通过使用布局以及每个选项卡的 Activity 来修改它。不幸的是，当向我的 TabHost 添加 TabSpec 时，我的应用程序因“资源 ID 无效”错误而崩溃。

我相信这里的错误与 Dalvik 不理解我对选项卡布局 XML 文件的引用有关，但不明白为什么会出现这种情况。我尝试过使用额外的 <include>我的 main.xml 文件中的语句无济于事。非常欢迎任何帮助!

崩溃的 Java 代码:

public class TabLayoutActivity extends TabActivity {
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Resources res = getResources();
    //mTabHost = getTabHost();
    mTabHost = (TabHost) findViewById(android.R.id.tabhost);
    mTabHost.setup();

    TabHost.TabSpec spec; 
    Intent intent;

    //Search tab
    intent = new Intent(this, SearchActivity.class);
    spec = mTabHost.newTabSpec("search_tab");
    spec.setIndicator("Search", res.getDrawable(R.drawable.magnifyingglass));
    spec.setContent(intent);        
    mTabHost.addTab(spec); //this line crashes


    //Allergies tab - when the above tab is commented out, this tab adds successfully
    intent = new Intent(this, AllergiesActivity.class);
    spec = mTabHost.newTabSpec("allergies_tab")
            .setIndicator("Allergies", res.getDrawable(R.drawable.man))
            .setContent(intent);

    mTabHost.addTab(spec);

    mTabHost.setCurrentTab(0);
}
}

有问题的选项卡的 Activity :

public class SearchActivity extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.id.search_tab_layout);
}
}

另一个(工作)选项卡的 Activity (注意未指定布局):

public class AllergiesActivity extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    TextView textView = new TextView(this);
    textView.setText("Allergies");
    setContentView(textView);

}
}

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">

    <LinearLayout
                  android:orientation="vertical"
                  android:layout_width="fill_parent"
                  android:layout_height="fill_parent">

        <TabWidget android:id="@android:id/tabs"
                   android:layout_width="fill_parent"
                   android:layout_height="wrap_content">

        </TabWidget>

        <FrameLayout android:id="@android:id/tabcontent"
                     android:layout_width="fill_parent"
                     android:layout_height="fill_parent">


        </FrameLayout>
    </LinearLayout>

</TabHost>

search_tab.xml - 是否未包含此内容？

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/search_tab_layout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" xmlns:android1="http://schemas.android.com/apk/res/android">


</LinearLayout>

日志输出:

04-09 16:08:23.434: D/ddm-heap(532): Got feature list request
04-09 16:08:23.843: D/AndroidRuntime(532): Shutting down VM
04-09 16:08:23.843: W/dalvikvm(532): threadid=3: thread exiting with uncaught exception (group=0x4001b188)
04-09 16:08:23.843: E/AndroidRuntime(532): Uncaught handler: thread main exiting due to uncaught exception
04-09 16:08:23.873: E/AndroidRuntime(532): java.lang.RuntimeException: Unable to start activity ComponentInfo{mattjackson.allergyassassin/mattjackson.allergyassassin.TabLayoutActivity}: java.lang.RuntimeException: Unable to start activity ComponentInfo{mattjackson.allergyassassin/mattjackson.allergyassassin.SearchActivity}: android.content.res.Resources$NotFoundException: Resource ID #0x7f050003 type #0x12 is not valid
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.ActivityThread.access$2200(ActivityThread.java:119)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.os.Handler.dispatchMessage(Handler.java:99)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.os.Looper.loop(Looper.java:123)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.ActivityThread.main(ActivityThread.java:4363)
04-09 16:08:23.873: E/AndroidRuntime(532):  at java.lang.reflect.Method.invokeNative(Native Method)
04-09 16:08:23.873: E/AndroidRuntime(532):  at java.lang.reflect.Method.invoke(Method.java:521)
04-09 16:08:23.873: E/AndroidRuntime(532):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
04-09 16:08:23.873: E/AndroidRuntime(532):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
04-09 16:08:23.873: E/AndroidRuntime(532):  at dalvik.system.NativeStart.main(Native Method)
04-09 16:08:23.873: E/AndroidRuntime(532): Caused by: java.lang.RuntimeException: Unable to start activity ComponentInfo{mattjackson.allergyassassin/mattjackson.allergyassassin.SearchActivity}: android.content.res.Resources$NotFoundException: Resource ID #0x7f050003 type #0x12 is not valid
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.ActivityThread.startActivityNow(ActivityThread.java:2335)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.LocalActivityManager.moveToState(LocalActivityManager.java:127)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:339)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.widget.TabHost$IntentContentStrategy.getContentView(TabHost.java:648)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.widget.TabHost.setCurrentTab(TabHost.java:320)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.widget.TabHost.addTab(TabHost.java:213)
04-09 16:08:23.873: E/AndroidRuntime(532):  at mattjackson.allergyassassin.TabLayoutActivity.onCreate(TabLayoutActivity.java:31)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
04-09 16:08:23.873: E/AndroidRuntime(532):  ... 11 more
04-09 16:08:23.873: E/AndroidRuntime(532): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f050003 type #0x12 is not valid
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.content.res.Resources.loadXmlResourceParser(Resources.java:1870)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.content.res.Resources.getLayout(Resources.java:730)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.view.LayoutInflater.inflate(LayoutInflater.java:318)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
04-09 16:08:23.873: E/AndroidRuntime(532):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.Activity.setContentView(Activity.java:1622)
04-09 16:08:23.873: E/AndroidRuntime(532):  at mattjackson.allergyassassin.SearchActivity.onCreate(SearchActivity.java:11)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-09 16:08:23.873: E/AndroidRuntime(532):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
04-09 16:08:23.873: E/AndroidRuntime(532):  ... 20 more
04-09 16:08:23.903: I/dalvikvm(532): threadid=7: reacting to signal 3
04-09 16:08:23.903: E/dalvikvm(532): Unable to open stack trace file '/data/anr/traces.txt': Permission denied

Answer 1

在您的 SearchActivity 中，您必须设置布局。您尝试将 View (从布局中)设置为 Activity 的布局。而不是

 setContentView(R.id.search_tab_layout);

做

 setContentView(R.layout.search_tab);