SQLiteDatabase.dbopen（）でSQLiteExceptionを取得するユーザーがいるのはなぜですか？ここ

Question

は例外です：

public DbAdapter open() throws SQLException { 
    mDbHelper = new DatabaseHelper(mCtx); 
    mDb = mDbHelper.getWritableDatabase(); 
    return this; 
} 

Bridges.onCreate：

java.lang.RuntimeException: Unable to start activity ComponentInfo{spb.bridges/spb.bridges.Bridges}: android.database.sqlite.SQLiteException: unable to open database file 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 
at android.app.ActivityThread.access$2300(ActivityThread.java:125) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 
at android.os.Handler.dispatchMessage(Handler.java:99) 
at android.os.Looper.loop(Looper.java:123) 
at android.app.ActivityThread.main(ActivityThread.java:4627) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:521) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: android.database.sqlite.SQLiteException: unable to open database file 
at android.database.sqlite.SQLiteDatabase.dbopen(Native Method) 
at android.database.sqlite.SQLiteDatabase.<init>(SQLiteDatabase.java:1921) 
at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:883) 
at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:960) 
at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:953) 
at android.app.ContextImpl.openOrCreateDatabase(ContextImpl.java:602) 
at android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:203) 
at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:98) 
at spb.bridges.DbAdapter.open(DbAdapter.java:172) 
at spb.bridges.Bridges.onCreate(Bridges.java:90) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 

、ここでは​​のコードである

​​

Answer 1

あなたが開いたときに、コンテキストが完全に初期化されていないように見えますあなたのデータベース。

Bridges.onCreateメソッドでは、super.onCreateに電話をしますか？他の操作の前にsetContentView？