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objective-c - ios similar effect to qq pin

If you want to achieve a similar QQ message top effect, please give me some advice.

From [iOSdiscussion group] 2017-05-02 09:23:50 0  1  894

objective-c - How to stretch this kind of picture without deforming the triangle arrow of the picture (iOS-OC)?

(www.sf.gg) is China's leading developer technology community. We hope to provide a pure, high-quality technic...

From [iOSdiscussion group] 2017-05-02 09:23:49 0  4  696

Objective-c - WebView cannot respond to modal window when loading html

RT, in WebView under OSX (not iOS), when loading an html web page, the js window.showModalDialog is invalid an...

From [iOSdiscussion group] 2017-05-02 09:23:47 0  2  820

Objective-c - Two tableviews. The right one will be blocked without adding top64, but the left one will not. Question: Why?

I want to make a two-column one. I use two tableviews, so here comes the problem. When I used Swift, I did it ...

From [iOSdiscussion group] 2017-05-02 09:23:45 0  1  686

objective-c - How to cancel a block?

During the interview, I encountered a written test question that I couldn’t answer. Don't know how to answer.

From [iOSdiscussion group] 2017-05-02 09:23:43 0  0  395

html - How does js call oc return to Js parameters?

1. The front end of the web page needs to call one of my methods. 2. After implementing my method, I need to a...

From [iOSdiscussion group] 2017-05-02 09:23:41 0  1  504

objective-c - I have defined a data model of dict type, so how do I find its sum?

Prompt this error

From [iOSdiscussion group] 2017-05-02 09:23:40 0  3  622

objective-c - Why is getting surrounding data from iOS Amap not the desired result?

Most of the surrounding data obtained are store and company names. Can it be more vague, such as XX Building o...

From [iOSdiscussion group] 2017-05-02 09:23:38 0  0  584

objective-c - tabbar toolbar hidden

1. There is a tabbar at the bottom of my group purchase demo. 2. When I click on a certain line of group purch...

From [iOSdiscussion group] 2017-05-02 09:23:35 0  1  546

objective-c - iOS development: How to jump to the Touch ID and password interface of system settings?

As mentioned in the title, when using URL jump, what I found on the Internet are many previous interfaces, but...

From [iOSdiscussion group] 2017-05-02 09:23:34 0  1  793

Objective-c - NSFetchedResultsController CoreData callback issue

(NSFetchedResultsController *)fetchedResultsController { // Recommended writing method to reduce the nesting l...

From [iOSdiscussion group] 2017-05-02 09:23:32 0  0  386

objective-c - cocoa-How to manage individual NSWindow of different nib files and multiple subviews under one NSWindow?

In a project, for different nib files, should each nib have an NSWindow? Or is it that only one nib file has a...

From [iOSdiscussion group] 2017-05-02 09:23:30 0  1  442

objective-c - How to achieve the effect in the picture?

Change the avatar. The background image at the back changes with the color of the avatar, but the color of the...

From [iOSdiscussion group] 2017-05-02 09:23:29 0  4  779

Objective-c - iOS system calendar insertion event fails

I want to insert an event in the system calendar. The code used is as follows: {code...} The return value of e...

From [iOSdiscussion group] 2017-05-02 09:23:27 0  0  783

objective-c - custom cell

I added a pan gesture to the cell to achieve sliding deletion, but whenever I slide the cell, the cell will be...

From [iOSdiscussion group] 2017-05-02 09:23:26 0  1  889