Question

在我的应用程序中集成fb sdk时出现以下错误：

06-05 16:01:42.758: E/AndroidRuntime(892): FATAL EXCEPTION: main
06-05 16:01:42.758: E/AndroidRuntime(892): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.biz.fbapp/com.biz.fbapp.FBAppActivity}: android.view.InflateException: Binary XML file line #7: Error inflating class com.facebook.android.LoginButton
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.app.ActivityThread.access$600(ActivityThread.java:123)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.os.Handler.dispatchMessage(Handler.java:99)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.os.Looper.loop(Looper.java:137)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.app.ActivityThread.main(ActivityThread.java:4424)
06-05 16:01:42.758: E/AndroidRuntime(892):  at java.lang.reflect.Method.invokeNative(Native Method)
06-05 16:01:42.758: E/AndroidRuntime(892):  at java.lang.reflect.Method.invoke(Method.java:511)
06-05 16:01:42.758: E/AndroidRuntime(892):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
06-05 16:01:42.758: E/AndroidRuntime(892):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
06-05 16:01:42.758: E/AndroidRuntime(892):  at dalvik.system.NativeStart.main(Native Method)
06-05 16:01:42.758: E/AndroidRuntime(892): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class com.facebook.android.LoginButton
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:691)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
06-05 16:01:42.758: E/AndroidRuntime(892):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:251)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.app.Activity.setContentView(Activity.java:1835)
06-05 16:01:42.758: E/AndroidRuntime(892):  at com.biz.fbapp.FBAppActivity.onCreate(FBAppActivity.java:53)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.app.Activity.performCreate(Activity.java:4465)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
06-05 16:01:42.758: E/AndroidRuntime(892):  ... 11 more
06-05 16:01:42.758: E/AndroidRuntime(892): Caused by: java.lang.ClassNotFoundException: com.facebook.android.LoginButton
06-05 16:01:42.758: E/AndroidRuntime(892):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
06-05 16:01:42.758: E/AndroidRuntime(892):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
06-05 16:01:42.758: E/AndroidRuntime(892):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.view.LayoutInflater.createView(LayoutInflater.java:552)
06-05 16:01:42.758: E/AndroidRuntime(892):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
06-05 16:01:42.758: E/AndroidRuntime(892):  ... 21 more

在这一行

setContentView(R.layout.main);

main.xml上的代码是

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:background="@drawable/white"
    android:gravity="center_horizontal">

    <com.biz.fbapp.LoginButton
        android:id="@+id/login"
        android:src="@drawable/login_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:layout_margin="30dp"
        />

    <TextView android:id="@+id/txt" 
        android:text="@string/hello"
        android:textColor="@drawable/black"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />

    <Button android:id="@+id/uploadButton"
        android:text="@string/upload"
        android:visibility="invisible"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:paddingRight="20dp" 
        android:paddingLeft="20dp"
        android:layout_margin="20dp" 
        />

    <Button android:id="@+id/requestButton"
        android:text="@string/request"
        android:visibility="invisible"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:paddingRight="20dp" 
        android:paddingLeft="20dp"
        android:layout_margin="20dp" 
        />


    <Button android:id="@+id/postButton" 
        android:text="@string/post"
        android:visibility="invisible"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:paddingRight="20dp" 
        android:paddingLeft="20dp"
        android:layout_margin="20dp" 
        />

    <Button android:id="@+id/deletePostButton" 
        android:text="@string/delete"
        android:visibility="invisible"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:paddingRight="20dp" 
        android:paddingLeft="20dp"
        android:layout_margin="20dp" 
        />



</LinearLayout>

请告诉我错过或做错了。

编辑：

现在即使在我导入该文件后，我也得到了noclassdeffound，无法在该特定项目上添加库..

由于思鲁提

Answer 1

另请参阅此问题：Android ClassNotFound and android.view.InflateException:

我从那里复制了我的答案：

自Facebook SDK版本3.0起，LoginButton现在作为SDK的一部分提供为com.facebook.widget.LoginButton

请参阅here。

请注意，Facebook自己的升级说明here引用了错误的包，LoginButton必须声明为com.facebook.widget.LoginButton，而不是com.facebook.LoginButton

Answer 2

引起：android.view.InflateException：二进制XML文件行＃7：扩展类com.facebook.android.LoginButton
时出错

该SDK的主要源代码中没有LoginButton。它仅在示例代码中可用，因此无法加载不可用的类（ClassNotFoundException）

Answer 3

下载的facebook sdk中有一些例子。使用任何示例中的示例文件

path_to_facebook_sdk /示例/简单/ SRC / COM /实/机器人/ LoginButton.java

在项目中导入上述文件。

在我的应用程序中集成FB Sdk时，我得到了java.lang.classnotfoundexception

3 个答案: