Implementing NSCoding protocol

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I have asked a similar questions...

While I have made some progress, I still cant seem make it work.

Here is what I got uptill now:

customWriteableObj.h:

@interface customWriteableObj : NSObject <NSCoding>
@property int integer;
@property NSString * string;
@property BOOL boo;
@end

---

customWriteableObj.m:

\#import "customWriteableObj.h"

@implementation customWriteableObj
-(id)init
{
    _integer = 117;
    _string = @"aString";
    _boo = YES;
    return self;
}
-(id)initWithCoder:(NSCoder *)aDecoder
{
    _integer = [aDecoder decodeIntForKey:@"integer"];
    _boo = [aDecoder decodeBoolForKey:@"boo"];
    _string = [aDecoder decodeObjectForKey:@"string"];
    return self;
}

-(void)encodeWithCoder:(NSCoder *)aCoder
{
    [aCoder encodeObject:self.string forKey:@"string"];
    [aCoder encodeBool:self.boo forKey:@"boo"];
    [aCoder encodeInteger:self.integer forKey:@"integer"];
}
@end

---

main:

customWriteableObj * x = [[customWriteableObj alloc]init];
    NSMutableData *dat = [[NSMutableData alloc] init];
    NSKeyedArchiver* arch1 = [[NSKeyedArchiver alloc]initForWritingWithMutableData:dat];
    arch1.outputFormat = NSPropertyListXMLFormat_v1_0;
    [arch1 encodeObject:x forKey:@"tester1"];
    [arch1 finishEncoding];

    [dat writeToFile:@"text.xml";
    customWriteableObj * y = [[customWriteableObj alloc]init];
    y = [NSKeyedUnarchiver unarchiveObjectWithFile:@"text.xml";

---

Output in XML:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://ift.tt/vvUEPL">
<plist version="1.0">
<dict>
    <key>$archiver</key>
    <string>NSKeyedArchiver</string>
    <key>$objects</key>
    <array>
        <string>$null</string>
        <dict>
            <key>$class</key>
            <dict>
                <key>CF$UID</key>
                <integer>3</integer>
            </dict>
            <key>boo</key>
            <true/>
            <key>integer</key>
            <integer>117</integer>
            <key>string</key>
            <dict>
                <key>CF$UID</key>
                <integer>2</integer>
            </dict>
        </dict>
        <string>aString</string>
        <dict>
            <key>$classes</key>
            <array>
                <string>customWriteableObj</string>
                <string>NSObject</string>
            </array>
            <key>$classname</key>
            <string>customWriteableObj</string>
        </dict>
    </array>
    <key>$top</key>
    <dict>
        <key>tester1</key>
        <dict>
            <key>CF$UID</key>
            <integer>1</integer>
        </dict>
    </dict>
    <key>$version</key>
    <integer>100000</integer>
</dict>
</plist>

which doesnt seem to be correct, since I cant see any data here, plus, when I try to read it back I get a nil!

asked 1 min ago

Marci-man

634