android - 从纵向更改为横向时强制关闭错误

Question

我正在从 Ed Brunette “Hello,Android” 的书中学习 Android 编程

在其中给出了代码（以下），我按原样输入，但仍然出现强制关闭错误。

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:background="@color/Background"
    android:gravity="center"
    android:padding="35dip"
    >
    <Textview
        android:text="@string/main_title"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="20dip"
        android:textSize="24.5sp"        />
    <TableLayout
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_gravity="center"
        android:stretchColumns="*">
        <TableRow>
            <Button 
                android:id="@+id/continue_button"
                android:text="@string/continue_label"/>
        <Button
            android:id="@+id/new_button"
            android:text="@string/new_game_label"/>               
        </TableRow>
        <TableRow>
            <Button
                android:id="@+id/about_button"
                android:text="@string/about_label" />
            <Button
                android:id="@+id/exit_button"
                androidLtext="@string/exit_label" />

        </TableRow>
        </TableLayout>


</LinearLayout>

原木猫：

04-01 15:12:08.370: D/AndroidRuntime(410): Shutting down VM
04-01 15:12:08.370: W/dalvikvm(410): threadid=1: thread exiting with uncaught exception (group=0x40015560)
04-01 15:12:08.420: E/AndroidRuntime(410): FATAL EXCEPTION: main
04-01 15:12:08.420: E/AndroidRuntime(410): java.lang.RuntimeException: Unable to start activity ComponentInfo{org.example.sudoku/org.example.sudoku.Sudoku}: android.view.InflateException: Binary XML file line #10: Error inflating class Textview
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:2832)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.app.ActivityThread.access$1600(ActivityThread.java:117)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.os.Handler.dispatchMessage(Handler.java:99)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.os.Looper.loop(Looper.java:123)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.app.ActivityThread.main(ActivityThread.java:3683)
04-01 15:12:08.420: E/AndroidRuntime(410):  at java.lang.reflect.Method.invokeNative(Native Method)
04-01 15:12:08.420: E/AndroidRuntime(410):  at java.lang.reflect.Method.invoke(Method.java:507)
04-01 15:12:08.420: E/AndroidRuntime(410):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-01 15:12:08.420: E/AndroidRuntime(410):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-01 15:12:08.420: E/AndroidRuntime(410):  at dalvik.system.NativeStart.main(Native Method)
04-01 15:12:08.420: E/AndroidRuntime(410): Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class Textview
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:581)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
04-01 15:12:08.420: E/AndroidRuntime(410):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.app.Activity.setContentView(Activity.java:1657)
04-01 15:12:08.420: E/AndroidRuntime(410):  at org.example.sudoku.Sudoku.onCreate(Sudoku.java:11)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
04-01 15:12:08.420: E/AndroidRuntime(410):  ... 12 more
04-01 15:12:08.420: E/AndroidRuntime(410): Caused by: java.lang.ClassNotFoundException: android.view.Textview in loader dalvik.system.PathClassLoader[/data/app/org.example.sudoku-1.apk]
04-01 15:12:08.420: E/AndroidRuntime(410):  at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
04-01 15:12:08.420: E/AndroidRuntime(410):  at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
04-01 15:12:08.420: E/AndroidRuntime(410):  at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.view.LayoutInflater.createView(LayoutInflater.java:471)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:549)
04-01 15:12:08.420: E/AndroidRuntime(410):  at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66)
04-01 15:12:08.420: E/AndroidRuntime(410):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
04-01 15:12:08.420: E/AndroidRuntime(410):  ... 21 more
04-01 15:12:12.681: I/Process(410): Sending signal. PID: 410 SIG: 9
04-01 15:12:34.881: W/KeyCharacterMap(424): No keyboard for id 0
04-01 15:12:34.881: W/KeyCharacterMap(424): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
04-01 15:30:15.661: D/AndroidRuntime(495): Shutting down VM
04-01 15:30:15.661: W/dalvikvm(495): threadid=1: thread exiting with uncaught exception (group=0x40015560)
04-01 15:30:15.741: E/AndroidRuntime(495): FATAL EXCEPTION: main
04-01 15:30:15.741: E/AndroidRuntime(495): java.lang.RuntimeException: Unable to start activity ComponentInfo{org.example.sudoku/org.example.sudoku.Sudoku}: android.view.InflateException: Binary XML file line #10: Error inflating class Textview
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:2832)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.app.ActivityThread.access$1600(ActivityThread.java:117)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.os.Handler.dispatchMessage(Handler.java:99)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.os.Looper.loop(Looper.java:123)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.app.ActivityThread.main(ActivityThread.java:3683)
04-01 15:30:15.741: E/AndroidRuntime(495):  at java.lang.reflect.Method.invokeNative(Native Method)
04-01 15:30:15.741: E/AndroidRuntime(495):  at java.lang.reflect.Method.invoke(Method.java:507)
04-01 15:30:15.741: E/AndroidRuntime(495):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-01 15:30:15.741: E/AndroidRuntime(495):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-01 15:30:15.741: E/AndroidRuntime(495):  at dalvik.system.NativeStart.main(Native Method)
04-01 15:30:15.741: E/AndroidRuntime(495): Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class Textview
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:581)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
04-01 15:30:15.741: E/AndroidRuntime(495):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.app.Activity.setContentView(Activity.java:1657)
04-01 15:30:15.741: E/AndroidRuntime(495):  at org.example.sudoku.Sudoku.onCreate(Sudoku.java:11)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
04-01 15:30:15.741: E/AndroidRuntime(495):  ... 12 more
04-01 15:30:15.741: E/AndroidRuntime(495): Caused by: java.lang.ClassNotFoundException: android.view.Textview in loader dalvik.system.PathClassLoader[/data/app/org.example.sudoku-2.apk]
04-01 15:30:15.741: E/AndroidRuntime(495):  at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
04-01 15:30:15.741: E/AndroidRuntime(495):  at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
04-01 15:30:15.741: E/AndroidRuntime(495):  at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.view.LayoutInflater.createView(LayoutInflater.java:471)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:549)
04-01 15:30:15.741: E/AndroidRuntime(495):  at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66)
04-01 15:30:15.741: E/AndroidRuntime(495):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
04-01 15:30:15.741: E/AndroidRuntime(495):  ... 21 more

我还在学习，我搜索了其他可以帮助我解决问题的问题，但这让我很困惑，因为我仍然不太了解 Android 编程。

谢谢 ：）

Answer 1

您的布局文件中有一个简单的错字，它应该是TextView而不是Textview.

Answer 2

从您的日志猫：

Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class Textview
E/AndroidRuntime(495):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:581)

所以我们知道文本视图是个问题。

<Textview
        android:text="@string/main_title"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="20dip"
        android:textSize="24.5sp"        />

删除结束标记前的空格并将 Textview 更改为 TextView。

<TextView
        android:text="@string/main_title"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="20dip"
        android:textSize="24.5sp"/>