Recent questions tagged ios4

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ios4 - how to get the CAPS LOCK (pressed Shift key) key state programmatically on IOS SDK?

I'm writing custom text editor with specific chars (non-english). I know about property - autocapitalizationType to change ... on IOS 4.0 SDK? See Question&Answers more detail:os...

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

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ios4 - iOS: Is it possible to take screenshots while running as a background task?

I want to take screenshots of any running app, while my app is in the background. I know I can take screenshots ... . Is there any other 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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412 views

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ios4 - Problem with Icon.png (Icon specified in the Info.plist not found under the top level app wrapper: Icon.png (-19007))

I'm putting together a universal app and I have the icons in my project, but I keep getting a warning from ... . Anything I might have missed? See Question&Answers more detail:os...

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

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387 views

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ios4 - track small movements of iphone with no GPS

I have to write an application for iphone that tracks the movement of the iphone itself, given its initial position, ... already? Thanks a lot! See Question&Answers more detail:os...

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

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330 views

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ios4 - How to record and play sound in iPhone app?

I tried using AVAudioSession and AVAudioPlayer to record and play sounds respectively but the sound volume is very low ... enough to play back? See Question&Answers more detail:os...

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

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264 views

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ios4 - How do you get implicit dependencies to work with workspaces in Xcode 4?

I want to manage projects in workspaces using Xcode 4 with Cocoa Touch Static Library projects which contain shared ... work in a workspace? See Question&Answers more detail:os...

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

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657 views

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ios4 - Could not load nib in bundle on iPhone device

I'm trying to test an app I'm developing on my iPhone. To do that I changed the target from Simulator to ... fine. What's wrong? Any ideas? See Question&Answers more detail:os...

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

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396 views

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ios4 - UIPopOverController for iPhone (currently only available for iPad)

Before I implement something similar for the iPhone, I'm wondering if anyone has implemented something similar of ... only available for iPad. See Question&Answers more detail:os...

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

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406 views

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ios4 - How to capture Tap gesture on MKMapView

I am trying to capture tap event on my MKMapView, this way I can drop a MKPinAnnotation on the point where user ... in the callout. 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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407 views

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ios4 - iPhone UINavigation Issue - nested push animation can result in corrupted navigation bar

I keep getting the following errors: 2011-04-02 14:55:23.350 AppName[42430:207] nested push animation ... instead of viewDidLoad methods? 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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ios4 - Missing file warnings showing up after upgrade to Xcode 4

I recently upgraded to Xcode 4 (which is a great upgrade) but now I'm getting some warnings that I did not get ... , but never got in Xcode 3. See Question&Answers more detail:os...

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

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576 views

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ios4 - Value of sine 180 is coming out as 1.22465e-16

I want to implement a Sine and Cosine calculator in ios4: if([operation isEqual:@"sin"]){ operand = ( ... does this small difference come from? See Question&Answers more detail:os...

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

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