iphone - Array of plist update data -

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i have 2 arrays init 2 different plist files, plist files inside document folder not in bundle editable.

progress = [[nsmutablearray alloc] initwithcontentsoffile:[self progressfilepath]];     easy = [[nsmutablearray alloc] initwithcontentsoffile:[self easyfilepath]];

the progress plist empty insted easy is:

<array>     <dict>         <key>titleen</key>         <string>hunter</string>         <key>status</key>         <integer>0</integer>         <key>image</key>         <string></string>     </dict> </array>

now in view have tableview loaded easy , element press in row, if it’s status 0 goes progress plist, set object key image in dog.png in progress.plist set object 0 key status in easy one. did this:

nsnumber *status = [[easy objectatindex:indexpath.row] objectforkey:@"status"];     if ([status intvalue] == 0) {              [progress addobject:[easy objectatindex:indexpath.row]];          int progresstot = [progress count];         (int i=0; i<progresstot; i++) {             if ([[progress objectatindex:i] objectforkey:@"titleen"] == [[easy objectatindex:indexpath.row] objectforkey:@"titleen"]) {                 [[progress objectatindex:i] setobject:@"dog.png" forkey:@"image"];             }         }             [progress writetofile:[self progressfilepath] atomically:yes]; [[easy objectatindex:indexpath.row] setobject:[nsnumber numberwithint:1]        forkey:@"status"];              [easy writetofile:[self easyfilepath] atomically:yes];       }

everything work fine, can’t understand why @ end of method have progress.plist element dog.png have dog.png on easy one. (status updated on easy , works dog.png on both). can me? can’t understand what’s wrong.

[progress addobject:[easy objectatindex:indexpath.row]];

you add object p1 == [easy objectatindex:indexpath.row] progress array, progress array retained p1 , has 1 of elements. didn't create new object, retained existing 1 - p1.

for (int i=0; i<progresstot; i++) {     if ([[progress objectatindex:i] objectforkey:@"titleen"] ==              [[easy objectatindex:indexpath.row] objectforkey:@"titleen"])      {         [[progress objectatindex:i] setobject:@"dog.png" forkey:@"image"];     } }
  • in if-statement want compare objects' content, not pointers, guess.
  • once again, in both arrays have pointer (p1) same object, when [p1 setobject:forkey:]; - both arrays.

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