我正在使用Android应用，但我一直收到Leak Found错误。这是调用堆栈：
11-01 11:26:47.087: ERROR/Database(7317): Leak found
11-01 11:26:47.087: ERROR/Database(7317): java.lang.IllegalStateException: /data/data/com.noshufou.android.su/databases/permissions.sqlite SQLiteDatabase created and never closed
11-01 11:26:47.087: ERROR/Database(7317): at android.database.sqlite.SQLiteDatabase.<init>(SQLiteDatabase.java:1792)
11-01 11:26:47.087: ERROR/Database(7317): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:798)
11-01 11:26:47.087: ERROR/Database(7317): at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:857)
11-01 11:26:47.087: ERROR/Database(7317): at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:850)
11-01 11:26:47.087: ERROR/Database(7317): at android.app.ApplicationContext.openOrCreateDatabase(ApplicationContext.java:535)
11-01 11:26:47.087: ERROR/Database(7317): at android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:193)
11-01 11:26:47.087: ERROR/Database(7317): at android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:193)
11-01 11:26:47.087: ERROR/Database(7317): at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:98)
11-01 11:26:47.087: ERROR/Database(7317): at com.noshufou.android.su.DBHelper.<init>(DBHelper.java:28)
11-01 11:26:47.087: ERROR/Database(7317): at com.noshufou.android.su.UninstallReceiver.onReceive(UninstallReceiver.java:10)
11-01 11:26:47.087: ERROR/Database(7317): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2637)
11-01 11:26:47.087: ERROR/Database(7317): at android.app.ActivityThread.access$3100(ActivityThread.java:119)
11-01 11:26:47.087: ERROR/Database(7317): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1913)
11-01 11:26:47.087: ERROR/Database(7317): at android.os.Handler.dispatchMessage(Handler.java:99)
11-01 11:26:47.087: ERROR/Database(7317): at android.os.Looper.loop(Looper.java:123)
11-01 11:26:47.087: ERROR/Database(7317): at android.app.ActivityThread.main(ActivityThread.java:4363)
11-01 11:26:47.087: ERROR/Database(7317): at java.lang.reflect.Method.invokeNative(Native Method)
11-01 11:26:47.087: ERROR/Database(7317): at java.lang.reflect.Method.invoke(Method.java:521)
11-01 11:26:47.087: ERROR/Database(7317): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:862)
11-01 11:26:47.087: ERROR/Database(7317): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
11-01 11:26:47.087: ERROR/Database(7317): at dalvik.system.NativeStart.main(Native Method)
问题是我在代码中的任何地方都没有使用数据库。
修改
这是整个程序的代码片段。此外，我有时只会收到此错误，有时候我不会发生另一种奇怪的事情。
这是主要活动：
public class SetAlarmUI extends Activity {
TextView mTimeDisplay;
Button setAlarmButton;
private Calendar time;
private int alarmHour;
private int alarmMin;
static final int TIME_DIALOG_ID = 0;
Toast toast;
@Override
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.setalarm);
// Holder for the Time, user will set this value later
time = Calendar.getInstance();
// Show the selected time
mTimeDisplay = (TextView) findViewById( R.id.timeText );
// Allow user to select the time for alarm and set it
setAlarmButton = (Button) findViewById( R.id.pickTime );
/***************** LISTENERS ******************/
// add a click listener to the Set Time button
OnClickListener setTimeListener = new OnClickListener() {
// Do this when the Set-Time button is clicked;
public void onClick(View v) {
// Display the Time Selector Dialog box so DEVELOPER can set the alarm
/** This will later be changed so that time is retrieved from a server */
showDialog( TIME_DIALOG_ID ); // TIME_DIALOG_ID = a unique ID for the Time Picker Dialog
}
};
Log.e( "OUT", "Line 59: Continuing..." );
//--------- Assign The Listeners ----------//
setAlarmButton.setOnClickListener( setTimeListener );
/**********************************************/
// get the current time
time.setTimeInMillis( System.currentTimeMillis() );
alarmHour = time.get( Calendar.HOUR_OF_DAY);
alarmMin = time.get( Calendar.MINUTE );
// Update the current display
updateDisplay();
}
// updates the time we display in the TextView
private void updateDisplay() {
mTimeDisplay.setText(
new StringBuilder()
.append(pad(alarmHour)).append(":")
.append(pad(alarmMin)));
}
// Fix up the string representation of the time
private static String pad(int c) {
if (c >= 10)
return String.valueOf(c);
else
return "0" + String.valueOf(c);
}
// the callback received when the user "sets" the time in the dialog
private TimePickerDialog.OnTimeSetListener mTimeSetListener =
new TimePickerDialog.OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
time.set( Calendar.HOUR_OF_DAY, hourOfDay );
time.set( Calendar.MINUTE, minute );
// Tell user alarm was set
String timeSetTo = "Alarm Set: " + time.get( Calendar.HOUR_OF_DAY ) + ":" + time.get( Calendar.MINUTE ) + " " + time.get( Calendar.AM_PM );
if( toast != null )
toast.cancel();
toast = Toast.makeText( SetAlarmUI.this, "L" + timeSetTo, Toast.LENGTH_LONG );
toast.show();
// When the alarms goes off we want to send an Intent to our Broadcast Receiver (AlarmAction),
// so set an Intent between the AlarmUI and the AlarmAction
Intent intent = new Intent( SetAlarmUI.this, CallAlarm.class );
// Create an IntentSender to have the intent executed as a broadcast later when alarm goes off.
PendingIntent sender = PendingIntent.getBroadcast( SetAlarmUI.this, 0, intent, 0 );
/** Schedule the alarm */
// To get any service we use getSystemService( Service Name )
AlarmManager alarmManager = ( AlarmManager ) getSystemService( ALARM_SERVICE );
/* Finally, we set the alarm to the desired time! WOOHOO! */
alarmManager.set( AlarmManager.RTC_WAKEUP, time.getTimeInMillis(), sender );
}
};
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case TIME_DIALOG_ID:
return new TimePickerDialog(this,
mTimeSetListener, alarmHour, alarmMin, false);
}
return null;
}
}
这是我的广播接收器：
public class CallAlarm extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent callDismiss)
{
Toast.makeText( context, R.string.debug, Toast.LENGTH_LONG ).show();
Log.e( "AlarmAction", context.getResources().getStringArray( R.array.ahadith )[0] );
callDismiss = new Intent( context, DismissUI.class );
context.startActivity( callDismiss );
}
}
最后这是我的第二个活动，当闹钟响起时，广播接收器会调用它：
public class DismissUI extends Activity {
@Override
/** Called when the activity is first created. */
public void onCreate( Bundle savedInstanceState ) {
// Display the Hadith
//super.onCreate( savedInstanceState );
setContentView( R.layout.dismiss );
Log.e( "DismissUI", "MADE IT TO THE DISMISS!" ); /* DEBUG */
// Get the Activity's Layout
LinearLayout mLayout = ( LinearLayout ) findViewById( R.layout.dismiss );
// Get a hadith from the String xml file and display it
TextView textView = new TextView( this );
textView.setText( getResources().getTextArray( R.array.ahadith )[0] );
// Set the layout for the Text (hadith)
LayoutParams p = new LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT );
textView.setLayoutParams(p);
// Add the hadith text to the layout at the beginning hence the ZERO
mLayout.addView( textView, 0 );
// Get the Text box for user input
EditText textBox = ( EditText ) findViewById( R.id.userInput );
// Get the Snooze and Dismiss buttons
// Set listener for Snooze button
// Set listener for Dismiss Button
}
}
答案 0 :(得分：2)
让我猜一下 - 你正在使用带有自定义ROM的root电话。最有可能是CyanogenMod？你可能正在使用一个有缺陷的版本。请在此处查看此问题：http://code.google.com/p/cyanogenmod/issues/detail?id=1512
它基本上来自管理超级用户状态的应用程序，并允许应用程序成为超级用户。它似乎没有正确维护其数据库。
答案 1 :(得分：0)
问题是我在代码中的任何地方都没有使用数据库。
毫无疑问，你实际上做使用SQLite。调用堆栈的第二行和第三行是SQlite正在初始化的明显证据。也许你正在使用一些使用SQlite的库。
如果您包含更多信息（包括完整的堆栈跟踪），可能更容易分辨出发生了什么。