重複相同的活動

Question

我按照這個教程http://www.sarahghaffary.com/android-quotes-generator-sample-application-using-alarmmanager-and-sqlite-database/，但我想知道如何使它即使用完引號也不斷重複引號。我知道我需要更改下面的代碼，但不知道如何。只有初學者，任何幫助都會很棒！

代碼：

public String getRandomQuote(){ 
SQLiteDatabase db = this.getWritableDatabase(); 
String selectQuery = "SELECT * FROM " + QUOTES_TABLE_NAME + " WHERE " + KEY_ISREAD + " = 0 ORDER BY RANDOM() LIMIT 1"; 
Cursor cursor = db.rawQuery(selectQuery, null); 

if (cursor != null) 
    if(cursor.moveToFirst()){ 
     db.execSQL("update " + QUOTES_TABLE_NAME + " set " + KEY_ISREAD + " = 1 where "+ KEY_ID +" = "+ cursor.getString(0)); 
     return cursor.getString(1); 
    } 
return "Sorry, you ran out of quotes <img src="http://www.sarahghaffary.com/wp-includes/images/smilies/icon_biggrin.gif" alt=":D" class="wp-smiley"> "; 
} 

Answer 1

public String getRandomQuote(){ 
SQLiteDatabase db = this.getWritableDatabase(); 
String selectQuery = "SELECT * FROM " + QUOTES_TABLE_NAME + " WHERE " + KEY_ISREAD + " = 0 ORDER BY RANDOM() LIMIT 1"; 
String UpdateAllQuery= "Update "+ QUOTES_TABLE_NAME + " set " + KEY_ISREAD + " = 0"; 
Cursor cursor = db.rawQuery(selectQuery, null); 
String quote = ""; 

if (cursor != null){ 
     cursor.moveToFirst(); 
     if (cursor.getCount() < 1){ 
      db.execSQL(UpdateAllQuery); 
      cursor = db.rawQuery(selectQuery, null); 
      cursor.moveToFirst(); 
     } 
     db.execSQL("update " + QUOTES_TABLE_NAME + " set " + KEY_ISREAD + " = 1 where "+ KEY_ID +" = "+ cursor.getString(0)); 
     quote = cursor.getString(1); 
     return quote; 
}else{ 
    return "Sorry, you ran out of quotes <img src="http://www.sarahghaffary.com/wp-includes/images/smilies/icon_biggrin.gif" alt=":D" class="wp-smiley"> "; 
}