Android Sample CardReader崩潰

我終於得到了編譯CardReader的Android示例沒有錯誤（SDK 4.4.2），但是當我在Samsung S4（Android 4.4.2）上運行它時，它立即崩潰！任何人知道原因和解決方案？這就是讀卡器：Android Sample CardReader崩潰

https://developer.android.com/samples/CardReader/index.html

我也拿到了的Nexus 7，有應用程序崩潰呢！這裏的logcat的：

04-03 23:38:23.280: D/AndroidRuntime(2493): Shutting down VM 
04-03 23:38:23.280: W/dalvikvm(2493): threadid=1: thread exiting with uncaught exception (group=0x41f07ba8) 
04-03 23:38:23.280: E/AndroidRuntime(2493): FATAL EXCEPTION: main 
04-03 23:38:23.280: E/AndroidRuntime(2493): Process: com.example.nfctest, PID: 2493 
04-03 23:38:23.280: E/AndroidRuntime(2493): java.lang.RuntimeException: Unable to start  activity ComponentInfo{com.example.nfctest/com.example.nfctest.MainActivity}: android.view.InflateException: Binary XML file line #45: Error inflating class fragment 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.ActivityThread.access$800(ActivityThread.java:135) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.os.Handler.dispatchMessage(Handler.java:102) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.os.Looper.loop(Looper.java:136) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.ActivityThread.main(ActivityThread.java:5017) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at java.lang.reflect.Method.invoke(Method.java:515) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at dalvik.system.NativeStart.main(Native Method) 
04-03 23:38:23.280: E/AndroidRuntime(2493): Caused by: android.view.InflateException: Binary XML file line #45: Error inflating class fragment 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:758) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.Activity.setContentView(Activity.java:1929) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at com.example.nfctest.MainActivity.onCreate(MainActivity.java:47) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.Activity.performCreate(Activity.java:5231) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  ... 11 more 
04-03 23:38:23.280: E/AndroidRuntime(2493): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.example.common.logger.LogFragment: make sure class name exists, is public, and has an empty constructor that is public 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.Fragment.instantiate(Fragment.java:597) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.Fragment.instantiate(Fragment.java:561) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.Activity.onCreateView(Activity.java:4778) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  ... 22 more 
04-03 23:38:23.280: E/AndroidRuntime(2493): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.common.logger.LogFragment" on path: DexPathList[[zip file "/data/app/com.example.nfctest-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.nfctest-1, /vendor/lib, /system/lib]] 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at java.lang.ClassLoader.loadClass(ClassLoader.java:497) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at java.lang.ClassLoader.loadClass(ClassLoader.java:457) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  at android.app.Fragment.instantiate(Fragment.java:583) 
04-03 23:38:23.280: E/AndroidRuntime(2493):  ... 25 more

來源

2014-04-03 user3495726

'產生的原因：拋出java.lang.ClassNotFoundException：找不到類「com.example.common.logger.LogFragment」'你在你的項目中有這樣一類？如果它與您的鏈接一樣，則它對Android支持庫有依賴性，是否包含在您的構建中？你是否正在處理一個跳過proguard的調試版本，或者是通過它發佈的版本？ –

現在感謝它的工作，但不完全正確，因爲當我掃描一張卡時，它只會顯示「」發現新標籤「而沒有別的，現在是什麼問題？最好的問候，羅伯特 – user3495726

花時間瞭解程序的運行並檢查logcat的任何相關的 –

現在的作品，但不完全正確的，因爲當我掃描卡，只說「新標籤發現」並沒有別的，現在出了什麼問題？

最好的問候，羅伯特

來源

2014-04-04 07:35:28 user3495726

這不是一個答案，不應該這樣發佈。 –

Android Sample CardReader崩潰

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