错误膨胀类android.support.v4.view.ViewPager

我一直在试图为我的应用程序创build一个传呼机在<uses-sdk android:minSdkVersion="10" android:targetSdkVersion="15" />我写了我的代码根据这个博客文章 。

寻呼机活动的XML:

 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <android.support.v4.view.ViewPager android:id="@+id/instructionsViewPager" android:layout_width="match_parent" android:layout_height="match_parent" /> </LinearLayout> 

适配器代码:

 public class MyPagerAdapter extends PagerAdapter { @Override public int getCount() { // TODO Auto-generated method stub return 2; } @Override public boolean isViewFromObject(View arg0, Object arg1) { return (arg0 == ((View) arg1)); } @Override public void destroyItem(ViewGroup container, int position, Object object) { ((ViewPager) container).removeView((View) object); } @Override public Object instantiateItem(ViewGroup container, int position) { LayoutInflater inflater = (LayoutInflater) container.getContext() .getSystemService(Context.LAYOUT_INFLATER_SERVICE); int resId = 0; switch (position) { case 1: resId = R.layout.instructions_page1; break; case 2: resId = R.layout.instructions_page2; break; } View view = inflater.inflate(resId, null); ((ViewPager) container).addView(view, 0); return view; } } 

活动代码

 public class Instructions extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.instructions); MyPagerAdapter adapter = new MyPagerAdapter(); ViewPager pager = (ViewPager) findViewById(R.id.instructionsViewPager); pager.setAdapter(adapter); pager.setCurrentItem(0); } } 

出于某种原因,当我运行这个应用程序,我得到这个错误列表:

 05-28 09:38:54.535: E/AndroidRuntime(18658): FATAL EXCEPTION: main 05-28 09:38:54.535: E/AndroidRuntime(18658): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.thepoosh/com.thepoosh.Instructions}: android.view.InflateException: Binary XML file line #7: Error inflating class android.support.v4.view.ViewPager 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.os.Handler.dispatchMessage(Handler.java:99) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.os.Looper.loop(Looper.java:123) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.app.ActivityThread.main(ActivityThread.java:3691) 05-28 09:38:54.535: E/AndroidRuntime(18658): at java.lang.reflect.Method.invokeNative(Native Method) 05-28 09:38:54.535: E/AndroidRuntime(18658): at java.lang.reflect.Method.invoke(Method.java:507) 05-28 09:38:54.535: E/AndroidRuntime(18658): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847) 05-28 09:38:54.535: E/AndroidRuntime(18658): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605) 05-28 09:38:54.535: E/AndroidRuntime(18658): at dalvik.system.NativeStart.main(Native Method) 05-28 09:38:54.535: E/AndroidRuntime(18658): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class android.support.v4.view.ViewPager 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:581) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.view.LayoutInflater.rInflate(LayoutInflater.java:623) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.view.LayoutInflater.inflate(LayoutInflater.java:408) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 05-28 09:38:54.535: E/AndroidRuntime(18658): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.app.Activity.setContentView(Activity.java:1663) 05-28 09:38:54.535: E/AndroidRuntime(18658): at com.thepoosh.Instructions.onCreate(Instructions.java:11) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615) 05-28 09:38:54.535: E/AndroidRuntime(18658): ... 11 more 05-28 09:38:54.535: E/AndroidRuntime(18658): Caused by: java.lang.ClassNotFoundException: android.support.v4.view.ViewPager in loader dalvik.system.PathClassLoader[/data/app/com.thepoosh-1.apk] 05-28 09:38:54.535: E/AndroidRuntime(18658): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240) 05-28 09:38:54.535: E/AndroidRuntime(18658): at java.lang.ClassLoader.loadClass(ClassLoader.java:551) 05-28 09:38:54.535: E/AndroidRuntime(18658): at java.lang.ClassLoader.loadClass(ClassLoader.java:511) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.view.LayoutInflater.createView(LayoutInflater.java:471) 05-28 09:38:54.535: E/AndroidRuntime(18658): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:570) 05-28 09:38:54.535: E/AndroidRuntime(18658): ... 20 more 

所以,我知道这是失败的,因为我使用android.support.v4.view.ViewPager ,我试着玩,并更改为普通的ViewPager和导入android.support.v13但它没有帮助…

任何想法如何解决这个问题?

Solutions Collecting From Web of "错误膨胀类android.support.v4.view.ViewPager"

确保将库放在项目中的常用文件夹(如libs)中。

右键点击jar,然后selectBuild Path,然后点击Add to Build Path。

这将把你的图书馆添加到你的项目。 如果一切正确,可以在名为“Referenced Libraries”的项目中的一个生成的“文件夹”

转到Project-> Properties-> Java Build Path,然后selectOrder and export选项卡。 设置android-support-v4.jar库并将其放到列表的顶部。 并清理和重build..它适用于大多数情况下

当我们使用新的adt JARS时,应该把文件夹称为“libs”

然后libs – >用作源文件夹
和你的jar>添加到构buildpath。

http://android.foxykeep.com/dev/how-to-fix-the-classdefnotfounderror-with-adt-17