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我创建了用于存储多个图像的本地数据库。我将此文件存储到 Mainbundle。当我获取数据时,只会从数据库中显示一张图像。但我需要在滚动视图下显示所有图像。

代码:

NSMutableArray *appArray = [[NSMutableArray alloc] init];
    @try {
        NSFileManager *fileMgr = [NSFileManager defaultManager];
        NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:@"App4.sqlite"];
        BOOL success = [fileMgr fileExistsAtPath:dbPath];
        if(!success)
        {
            NSLog(@"Cannot locate database file '%@'.", dbPath);
        }
        if(!(sqlite3_open([dbPath UTF8String], &db) == SQLITE_OK))
        {
            NSLog(@"An error has occured.");
        }



        const char *sql = "SELECT * FROM  App4Tbl";

        sqlite3_stmt *sqlStatement;
        if(sqlite3_prepare(db, sql, -1, &sqlStatement, NULL) != SQLITE_OK)
        {
            NSLog(@"Problem with prepare statement");
        }

        //
        while (sqlite3_step(sqlStatement)==SQLITE_ROW) {
            Myapp *Mylist = [[Myapp alloc]init];
            Mylist.appId = sqlite3_column_int(sqlStatement, 0);
            Mylist.app = [NSString stringWithUTF8String:(char *) sqlite3_column_text(sqlStatement,1)];
            Mylist.rating = [NSString stringWithUTF8String:(char *) sqlite3_column_text(sqlStatement, 2)];
            const char *raw = sqlite3_column_blob(sqlStatement, 3);
            int rawLen = sqlite3_column_bytes(sqlStatement, 3);
            NSData *data = [NSData dataWithBytes:raw length:rawLen];
            Mylist.photo = [[UIImage alloc] initWithData:data];
            [appArray addObject:Mylist];
        }
    }
    @catch (NSException *exception) {
        NSLog(@"An exception occured: %@", [exception reason]);
    }
    @finally {
        return appArray;
    }
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