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私はこの質問をもう一度聞いていることを知っていますが、私はSOや他のウェブサイトでいくつかの解決策を試みましたが、救助しませんでした。 DDMSビューでデータベースが作成されても、データベースの読み込み可能なインスタンスを取得しようとしているときに、NULLポインタの例外が発生しています。getReadableDatabase中のヌルポインタ例外
02-28 01:28:56.585: ERROR/NewContactTrackService(285): Adding to instant upload database contact id 21
02-28 01:28:56.595: ERROR/NewContactTrackService(285): Added to instant upload database contact id 21
02-28 01:28:56.615: ERROR/Net UNAVAILABLE details stored in buffer(285): Sd
02-28 01:28:58.186: ERROR/NetworkReceiver(285): onReceive: connected, starting UpdaterService
02-28 01:28:58.186: ERROR/NewContactTrackService(285): UPDATE CALLED
02-28 01:28:58.186: ERROR/NewContactTrackService(285): INSIDE IF
02-28 01:28:58.186: ERROR/NewContactTrackService(285): qqqqqqqqqqqqqqqqqqqqqqqqq
02-28 01:28:58.195: ERROR/AndroidRuntime(285): Uncaught handler: thread main exiting due to uncaught exception
02-28 01:28:58.245: ERROR/AndroidRuntime(285): java.lang.RuntimeException: Unable to start receiver com.gooogle.omcsa.NetworkReceiver: java.lang.NullPointerException
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2646)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.app.ActivityThread.access$3100(ActivityThread.java:119)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1913)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.os.Handler.dispatchMessage(Handler.java:99)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.os.Looper.loop(Looper.java:123)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.app.ActivityThread.main(ActivityThread.java:4363)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at java.lang.reflect.Method.invokeNative(Native Method)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at java.lang.reflect.Method.invoke(Method.java:521)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at dalvik.system.NativeStart.main(Native Method)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): Caused by: java.lang.NullPointerException
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:193)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:98)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.database.sqlite.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:158)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at com.gooogle.omcsa.NewContactTrackService.update(NewContactTrackService.java:185)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at com.gooogle.omcsa.NetworkReceiver.onReceive(NetworkReceiver.java:21)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2637)
02-28 01:28:58.245: ERROR/AndroidRuntime(285): ... 10 more
02-28 01:28:58.275: ERROR/dalvikvm(285): Unable to open stack trace file '/data/anr/traces.txt': Permission denied
02-28 01:28:59.635: ERROR/ActivityThread(52): Failed to find provider info for android.server.checkin
ネットワーク受信機
public class NetworkReceiver extends BroadcastReceiver { //
public static final String TAG = "NetworkReceiver";
@Override
public void onReceive(Context context, Intent intent) {
boolean isNetworkDown = intent.getBooleanExtra(
ConnectivityManager.EXTRA_NO_CONNECTIVITY, false);
if (isNetworkDown) {
Log.e(TAG, "onReceive: NOT connected, stopping UpdaterService");
//context.stopService(new Intent(context, UpdaterService.class)); //
} else {
Log.e(TAG, "onReceive: connected, starting UpdaterService");
NewContactTrackService networkTrack= new NewContactTrackService();
networkTrack.update();
Log.e(TAG, "onReceive: connected,uploading ");
//context.startService(new Intent(context, UpdaterService.class)); //
}
}
}
NewContactTrackService:それは短い私は、関連する投稿したようにするには何か他のものが
を必要とする場合 Plzを助け
がLOGCATが私に教えてくださいサービスの一部
public class NewContactTrackService extends Service {
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
dbBuffer = new DbContactBuffer(this);
dbInstantBuffer = new DbInstantBuffer(this);
values = new ContentValues();
instantupload=0;
isInstantUploadEnabled = this.getSharedPreferences("isEnabled", MODE_WORLD_READABLE);
isDataForInstantUpload=false;
Log.e(TAG,"onCreate");
}
public void update()
{
Log.e(TAG,"UPDATE CALLED");
Log.e(TAG,"INSIDE IF");
dbInstantBuffer = new DbInstantBuffer(this);
Log.e(TAG," qqqqqqqqqqqqqqqqqqqqqqqqq");
db1 = dbInstantBuffer.getReadableDatabase(); //THIS IS THE LINE OF EXCEPTION
Log.e(TAG," wwwwwwwwwwwwwwwwwwwwwww");
cursor = db1.query(DbInstantBuffer.TABLE, null, null, null, null, null,null);
//startManagingCursor(cursor);
Log.e(TAG," "+ cursor.getCount());
while (cursor.moveToNext())
{
//SOME CODE
}
db1.close();
}
}
コードの最も重要な部分がありません: 'DbInstantBuffer' – Caner