這是我的第一篇文章,所以請原諒我,如果我違反任何規則。應用活動崩潰
我正在使用ADT編寫應用程序,當我通過按鈕按下啓動我的一項活動時,應用程序不斷崩潰。當我做出其中的一個按鈕時,活動纔開始給我帶來麻煩,運行一段漫長而複雜的Java。我在將NetBeans移植到應用程序之前測試了Java中的Java,並且它的功能完美。當我第一次將代碼添加到src文件時,ADT拒絕了它,因爲我使用了一個String開關,它只在java 1.7中兼容(我正在編譯1.6,而我的android設備有4.2.2,它只支持1.6)。在沒有字符串開關的情況下重寫代碼之後,使用1.6(Android版本4.3.2)編譯的代碼沒有錯誤,但是一旦在設備上運行(基於HyperDrive Rom的Android版本4.2.2),運行運行Java的活動導致應用程序崩潰。
我應該發佈什麼樣的代碼,以便有人可以查看它並發現任何錯誤?
編輯:這裏好夥計們的日誌貓:
10-26 19:19:27.223: W/ActivityThread(22541): Application com.example.cube can be debugged on port 8100... 10-26 19:19:27.603: D/libEGL(22541): loaded /system/lib/egl/libEGL_adreno200.so 10-26 19:19:27.613: D/libEGL(22541): loaded /system/lib/egl/libGLESv1_CM_adreno200.so 10-26 19:19:27.643: D/libEGL(22541): loaded /system/lib/egl/libGLESv2_adreno200.so 10-26 19:19:27.653: I/Adreno200-EGL(22541): <qeglDrvAPI_eglInitialize:265>: EGL 1.4 QUALCOMM build: (CL3579225) 10-26 19:19:27.653: I/Adreno200-EGL(22541): Build Date: 04/22/13 Mon 10-26 19:19:27.653: I/Adreno200-EGL(22541): Local Branch: adreno_sba_20130419 10-26 19:19:27.653: I/Adreno200-EGL(22541): Remote Branch: 10-26 19:19:27.653: I/Adreno200-EGL(22541): Local Patches: 10-26 19:19:27.653: I/Adreno200-EGL(22541): Reconstruct Branch: 10-26 19:19:27.963: D/OpenGLRenderer(22541): Enabling debug mode 0 10-26 19:19:29.605: D/GestureDetector(22541): [Surface Touch Event] mSweepDown False, mLRSDCnt : -1 mTouchCnt : 4 mFalseSizeCnt:0 10-26 19:19:30.096: E/SpannableStringBuilder(22541): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 10-26 19:19:30.096: E/SpannableStringBuilder(22541): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 10-26 19:19:30.956: D/GestureDetector(22541): [Surface Touch Event] mSweepDown False, mLRSDCnt : -1 mTouchCnt : 6 mFalseSizeCnt:0 10-26 19:19:31.407: E/SpannableStringBuilder(22541): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 10-26 19:19:31.407: E/SpannableStringBuilder(22541): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 10-26 19:19:33.369: D/GestureDetector(22541): [Surface Touch Event] mSweepDown False, mLRSDCnt : -1 mTouchCnt : 5 mFalseSizeCnt:0 10-26 19:19:34.250: E/SpannableStringBuilder(22541): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 10-26 19:19:34.250: E/SpannableStringBuilder(22541): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 10-26 19:19:35.391: D/GestureDetector(22541): [Surface Touch Event] mSweepDown False, mLRSDCnt : -1 mTouchCnt : 8 mFalseSizeCnt:0 10-26 19:19:35.571: D/AndroidRuntime(22541): Shutting down VM 10-26 19:19:35.571: W/dalvikvm(22541): threadid=1: thread exiting with uncaught exception (group=0x41b906c0) 10-26 19:19:35.591: E/AndroidRuntime(22541): FATAL EXCEPTION: main 10-26 19:19:35.591: E/AndroidRuntime(22541): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.cube/com.example.cube.AlgorithmConverter}: java.lang.NullPointerException 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2173) 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2297) 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.app.ActivityThread.access$700(ActivityThread.java:152) 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1282) 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.os.Handler.dispatchMessage(Handler.java:99) 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.os.Looper.loop(Looper.java:137) 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.app.ActivityThread.main(ActivityThread.java:5328) 10-26 19:19:35.591: E/AndroidRuntime(22541): at java.lang.reflect.Method.invokeNative(Native Method) 10-26 19:19:35.591: E/AndroidRuntime(22541): at java.lang.reflect.Method.invoke(Method.java:511) 10-26 19:19:35.591: E/AndroidRuntime(22541): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102) 10-26 19:19:35.591: E/AndroidRuntime(22541): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869) 10-26 19:19:35.591: E/AndroidRuntime(22541): at dalvik.system.NativeStart.main(Native Method) 10-26 19:19:35.591: E/AndroidRuntime(22541): Caused by: java.lang.NullPointerException 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.app.Activity.findViewById(Activity.java:1886) 10-26 19:19:35.591: E/AndroidRuntime(22541): at com.example.cube.AlgorithmConverter.<init>(AlgorithmConverter.java:15) 10-26 19:19:35.591: E/AndroidRuntime(22541): at java.lang.Class.newInstanceImpl(Native Method) 10-26 19:19:35.591: E/AndroidRuntime(22541): at java.lang.Class.newInstance(Class.java:1319) 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.app.Instrumentation.newActivity(Instrumentation.java:1071) 10-26 19:19:35.591: E/AndroidRuntime(22541): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2164) 10-26 19:19:35.591: E/AndroidRuntime(22541): ... 11 more
我敢肯定,XML是聲音,但Java是漫長的,很難甚至評論明白,所以我猶豫張貼。
請幫忙!
非常感謝!
您應該發佈負責按鈕的類的代碼,然後發佈按鈕的XML。 – 2014-10-26 19:44:29
或者至少有一些崩潰日誌。 – 2014-10-26 19:46:52
現在沒有代碼,只是來自logcat的堆棧跟蹤。 – Simon 2014-10-26 20:05:56