Recent questions tagged iphone

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iphone - How to get real time battery level on iOS with a 1% granularity

I'm using this function to get current battery level of device: [[UIDevice currentDevice] setBatteryMonitoringEnabled: ... a higher precision? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - NSString @property, using copy instead of retain

I'm looking over Apple's sample application EditableDetailView, and noticed that in one of their controllers, ... affecting the existing data? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - UITableView insert rows without scrolling

I have a list of data that I'm pulling from a web service. I refresh the data and I want ... setContentOffset:CGPointMake(0, iContentOffset)]; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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324 views

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iphone - UIImage color changing?

How can I change the UIImage's color through programming, any help please? If I send a UIImage, its color ... bitmaphandling, it does not work. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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349 views

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iphone - UIView: how to do non-destructive drawing?

My original question: I'm creating a simple drawing application and need to be able to draw over existing, previously ... is used for the copy? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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324 views

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iphone - Reporting incorrect bounds in landscape Mode

I am having an issue with Landscape mode in my iPad application. I created a very small new project to show my ... am unsure how to do it. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - Directly accessing nested dictionary values in Objective-C

Is there a way to directly access an inner-array of an an outer array in Objective-C? For example, a ... inner arrays to objects. Thoughts? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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234 views

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iphone - Handling redirects correctly with NSURLConnection

For the purposes of this, I'm going to pretend the original url is http://host/form and the new url is ... be much difference in these classes.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - Core Data: Error, "Can't Merge Models With Two Different Entities Named 'foo' "

I'm working on an iPhone app that uses Core Data. Most times, I just test in the simulator, but occasionally ... old database to really go away? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - UIButton TouchUpInside Touch Location

So I have a large UIButton, it is a UIButtonTypeCustom, and the button target is called for ... so thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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560 views

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iphone - Prevent indentation of UITableViewCell (contentView) while editing

Is it possible to keep the contentView.frame always the same, regardless of tableView.editing? I already tried to ... and not grouped style. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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551 views

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iphone - UITableView reload section

I want to reload only one section not the full table. Is there any method in UITableView. [tableView reloadData] is ... of rows in the table. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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490 views

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iphone - How to draw an UIImage or directly in -drawRect:?

I have an UIImage which I want to draw on a UIView. But instead of creating an UIImageView and adding this as ... directly into the view now? } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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317 views

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iphone - How Do I sort an NSMutable Array with NSNumbers in it?

I'm trying to make a high score table, and suck at arrays in objective c (actually, in general objective c ... objective c to learn from them. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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283 views

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iphone - Drawing bezier curves with my finger in iOS?

Hey, I'm trying to figure out how to generate bezier curves in iOS based on user input. Are there any ... getting started on the right foot. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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268 views

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iphone - Saving UIView contents in iOS 4 with real size of the images inside (i.e. scale contentes up for save)

I have an UIView with many UIImageViews as subviews. The app runs on iOS4 and I use images with retina ... - including code would be nice See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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357 views

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iphone - LibXML2.dylib and Xcode4

I just downloaded Xcode 4 and I cant seem to run my application as the MGTwitter... classes are complaining of a ... Any ideas how to fix this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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224 views

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iphone - MPMoviewPlayerController fullscreen playback rotation with underlying UIViewController with portrait mode only (rotation disallowed)

Hallo, I have a simple application, which does contain UITabBarController with two UIViewControllers. Both ... allows portrait only? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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235 views

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iphone - Download a file / image with AFNetworking in iOS?

I thought I had it figured out but I just can't get it to work. I have a method that is called on ... several times, and seems to be correct. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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374 views

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iphone - What's needed to use the Apple Accessory Protocol?

I'm in the process of planning out a personal project that will be a media player and one of the things ... devices can communicate this way? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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216 views

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iphone - How to display an image on a MKOverlayView?

UPDATE: Images who are projected on the MKMapView using a MKOverlayView use the Mercator projection, while the image ... is at the equator. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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370 views

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iphone - Print out the variable name objective-C

Continued from the last question here: Log method name in Obj-C . I just wondered if there is a way ... stringWithFormat:(s), ##__VA_ARGS__]) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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375 views

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iphone - Reset a CoreData persistent store

Basically, what I'm trying to do is to wipe out all data in my CoreData persistent store, then import new data. ... 'm doing an evident error... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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301 views

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iphone - error handling with NSURLConnection sendSynchronousRequest

how can i do better error handling with NSURLConnection sendSynchronousRequest? is there any way i can implement - ... 't proceed without data. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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305 views

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iphone - How can I make deleteRowsAtIndexPaths: work with GenericTableViewController?

I'm using Matt Gallagher's GenericTableViewController idea for controlling my UITableViews. My datasource is a ... on this one. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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342 views

1 answer

iphone sdk 3.0 - Changing UITableViewCell textLabel background color to clear

In my app I have a table view with customViewCells. I subclassed the UITableViewCell class and added an image that ... doesn't work? Thank you See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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287 views

1 answer

iphone - Is it possible to show a Facebook app as a Page Tab on mobile devices?

For example, the following URL shows the app in a tab: https://www.facebook.com/just.to.get.a.rep?sk= ... iPhone app and other mobile viewing. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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346 views

1 answer

iphone - How to Hide Tab Bar Controller?

How to Hide Tab Bar Controller ? I want to hide the Tab Bar controller with double tap on UIImageView. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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