Android NDK hellojni示例失敗

Question

我試圖從運行Android 2.1的AT91SAM9M10-EKES板上的NDK包運行該示例。 活動失敗。 這就是我在logcat中得到的結果，有人可以用這個指導我嗎？

D/AndroidRuntime(1153): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<< 
D/AndroidRuntime(1153): CheckJNI is ON 
D/AndroidRuntime(1153): --- registering native functions --- 
D/ddm-heap(1153): Got feature list request 
D/AndroidRuntime(1153): Shutting down VM 
D/dalvikvm(1153): DestroyJavaVM waiting for non-daemon threads to exit 
D/dalvikvm(1153): DestroyJavaVM shutting VM down 
D/dalvikvm(1153): HeapWorker thread shutting down 
D/dalvikvm(1153): HeapWorker thread has shut down 
D/jdwp (1153): JDWP shutting down net... 
I/dalvikvm(1153): Debugger has detached; object registry had 1 entries 
D/dalvikvm(1153): VM cleaning up 
E/AndroidRuntime(1153): ERROR: thread attach failed 
D/dalvikvm(1153): LinearAlloc 0x0 used 629532 of 5242880 (12%) 
D/AndroidRuntime(1161): 
D/AndroidRuntime(1161): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<< 
D/AndroidRuntime(1161): CheckJNI is ON 
D/AndroidRuntime(1161): --- registering native functions --- 
D/ddm-heap(1161): Got feature list request 
I/ActivityManager( 767): Starting activity: Intent { act=android.intent.action.MAIN cat=android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.example.hellojni/.HelloJni } 
D/AndroidRuntime(1161): Shutting down VM 
D/dalvikvm(1161): DestroyJavaVM waiting for non-daemon threads to exit 
D/dalvikvm(1161): DestroyJavaVM shutting VM down 
D/dalvikvm(1161): HeapWorker thread shutting down 
D/dalvikvm(1161): HeapWorker thread has shut down 
D/jdwp (1161): JDWP shutting down net... 
I/dalvikvm(1161): Debugger has detached; object registry had 1 entries 
D/dalvikvm(1161): VM cleaning up 
E/AndroidRuntime(1161): ERROR: thread attach failed 
D/dalvikvm(1161): LinearAlloc 0x0 used 639500 of 5242880 (12%) 
I/ActivityManager( 767): Start proc com.example.hellojni for activity  com.example.hellojni/.HelloJni: pid=1168 uid=10018 gids={1015} 
D/ddm-heap(1168): Got feature list request 
W/dalvikvm(1168): Exception Ljava/lang/UnsatisfiedLinkError; thrown during  Lcom/example/hellojni/HelloJni;.<clinit> 
W/dalvikvm(1168): Class init failed in newInstance call (Lcom/example/hellojni/HelloJni;) 
D/AndroidRuntime(1168): Shutting down VM 
W/dalvikvm(1168): threadid=3: thread exiting with uncaught exception (group=0x4001b168) 
E/AndroidRuntime(1168): Uncaught handler: thread main exiting due to uncaught exception 
E/AndroidRuntime(1168): java.lang.ExceptionInInitializerError 
E/AndroidRuntime(1168): at java.lang.Class.newInstanceImpl(Native Method) 
E/AndroidRuntime(1168): at java.lang.Class.newInstance(Class.java:1479) 
E/AndroidRuntime(1168): at  android.app.Instrumentation.newActivity(Instrumentation.java:1021) 
E/AndroidRuntime(1168): at  android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2409) 
E/AndroidRuntime(1168): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512) 
E/AndroidRuntime(1168): at android.app.ActivityThread.access$2200(ActivityThread.java:119) 
E/AndroidRuntime(1168): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863) 
E/AndroidRuntime(1168): at android.os.Handler.dispatchMessage(Handler.java:99) 
E/AndroidRuntime(1168): at android.os.Looper.loop(Looper.java:123) 
E/AndroidRuntime(1168): at android.app.ActivityThread.main(ActivityThread.java:4363) 
E/AndroidRuntime(1168): at java.lang.reflect.Method.invokeNative(Native Method) 
E/AndroidRuntime(1168): at java.lang.reflect.Method.invoke(Method.java:521) 
E/AndroidRuntime(1168): at  com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 
E/AndroidRuntime(1168): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
E/AndroidRuntime(1168): at dalvik.system.NativeStart.main(Native Method) 
E/AndroidRuntime(1168): Caused by: java.lang.UnsatisfiedLinkError: Library hello-jni not found 
E/AndroidRuntime(1168): at java.lang.Runtime.loadLibrary(Runtime.java:489) 
E/AndroidRuntime(1168): at java.lang.System.loadLibrary(System.java:557) 
E/AndroidRuntime(1168): at com.example.hellojni.HelloJni.<clinit>(HelloJni.java:64) 
E/AndroidRuntime(1168): ... 15 more 
I/Process ( 767): Sending signal. PID: 1168 SIG: 3 
I/dalvikvm(1168): threadid=7: reacting to signal 3 
E/dalvikvm(1168): Unable to open stack trace file '/data/anr/traces.txt': Permission denied 
W/ActivityManager( 767): Launch timeout has expired, giving up wake lock! 
W/ActivityManager( 767): Activity idle timeout for HistoryRecord{43d5c310 com.example.hellojni/.HelloJni} 
D/dalvikvm( 813): GC freed 301 objects/14832 bytes in 91ms 
I/power ( 767): *** set_screen_state 0 
E/power ( 767): Failed setting last user activity: g_error=0 
W/ActivityManager( 767): Activity pause timeout for HistoryRecord{43d5c310 com.example.hellojni/.HelloJni} 
D/dalvikvm( 873): GC freed 165 objects/6624 bytes in 81ms 

Answer 1

你說好的建庫（的.so）項目的文件，這就是爲什麼你收到此錯誤，請嘗試用的Android NDKhttp://developer.android.com/sdk/ndk/index.html和cygwin的幫助，建立項目http://www.cygwin.com/