[Solved] Objective-C “Star Wars” opening crawl [closed]

It is possible in Objective-C. Only because I’m nice We’ll start with a simple rotation and see what happens. If you build, you’ll see that we got a nice rotation but it doesn’t look realistic. We need to skew the perspective as well to get the real effect. UITextView *textView = [[UITextView alloc] initWithFrame:self.view.bounds]; [textView … Read more

[Solved] how to get server response and if server response is “Success” after show alert by JSON using objective c [closed]

Try This Don’t need to use JSON simply try this code to get response from server NSString *string= [[NSString alloc]initWithFormat:@”url”]; NSLog(@”%@”,string); NSURL *url = [NSURL URLWithString:string]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@”POST”]; NSURLResponse *response; NSError *err; NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err]; NSLog(@”responseData: %@”, responseData); NSString *str = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]; NSLog(@”responseData: … Read more

[Solved] Objective-c: simple strings (beginner) [closed]

If all the displays are UILabel objects, then change this word = [NSString stringWithFormat:@”%@ %@ %@ %@ %@ %@ %@ %@ %@”, display1, display2, display3, display4, display5, display6, display7, display8, display9]; toword = [NSString stringWithFormat:@”%@ %@ %@ %@ %@ %@ %@ %@ %@”, display1.text, display2.text, display3.text, display4.text, display5.text, display6.text, display7.text, display8.text, display9.text]; solved Objective-c: simple … Read more

[Solved] How do I turn an int into a float? [closed]

NSNumber *yourNumber = [NSNumber numberWithInt: SliderMaximum]; float yourFloat = [yourNumber floatValue]; and you don’t need a pointer to int, it’s useless, computationally allocate a pointer and write inside address pointer to int is same as allocate a int and write int in it. 2 solved How do I turn an int into a float? [closed]

[Solved] Objective C: How to read from saved files? [closed]

Using NSURLs NSString *fileName = [NSString stringWithFormat:@”%f.mp4″,[[NSDate date] timeIntervalSince1970]]; NSFileManager *fileManager = [NSFileManager defaultManager]; NSURL *documentsDirectoryURL = NSURL *URLForDirectory = [[fileManager URLsForDirectory: NSDocumentDirectory inDomains:NSUserDomainMask] lastObject]; NSURL *fileURL = [NSURL URLWithString:fileName relativeToURL:URLForDirectory]; solved Objective C: How to read from saved files? [closed]

[Solved] Convert Notes to Hertz (iOS)

You can use a function based on this formula: The basic formula for the frequencies of the notes of the equal tempered scale is given by fn = f0 * (a)n where f0 = the frequency of one fixed note which must be defined. A common choice is setting the A above middle C (A4) … Read more

[Solved] Why use Core data for storage? [closed]

sure, sqlite is a lib for db too, and core data is an object-c lib for database… both are a good way to manage db, you have just to choose your favorite one… and this may help you: http://tapity.com/iphone-app-development/readwrite-data-on-the-iphone-property-lists-sqlite-or-core-data/ 2 solved Why use Core data for storage? [closed]

[Solved] Changing background of cell in tableview behaves not as expected [closed]

When changing cell/textview backgorund color or any other attribute every seventh cell/textview also accepts changes. The Problem is due to re-usability of your UITableViewCell. Modify your -cellForRowAtIndexPath like this… Sample Code : -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *reuseIdentifier = @”MyCellType”; UITableViewCell *cell; //UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseIdentifier]; if(cell == nil) { /* … Read more

[Solved] Creata a UIPickerView. Delegate=self [closed]

Couple of problems. You’ve implemented two of the methods with the wrong names: -pickView:didSelectRow:inComponent: should be -pickerView:didSelectRow:inComponent:, and -pickView:titleForRow:forComponent: should be -pickerView:titleForRow:forComponent:. Also, you’re setting the picker view’s delegate, but you aren’t setting its dataSource, so your code that returns the actual items to display isn’t getting called; you need a pickerView1.dataSource = self; as … Read more

[Solved] objective c syntax: @property keyword [duplicate]

You can use the @property approach in conjunction with @synthesize to automatically generate getters and setters. That is the new way of doing things, it makes working with getters/setters a lot easier because you don’t have to write them yourself. The instance variable (which is defined between the braces, like in your example above) is … Read more