4. How can I show my own app icon at the bottom-left corner of iPhone lock screen?
Solution: 1. This is iOS 8 new feature called Handoff more info here.
You can’t control what app appears in the bottom-left corner of the lock screen. Neither can you add code to your app to make your app appear there whenever you want. These are called Suggested Apps and it’s a feature of iOS.
iOS controls what app appears there based on several factors, including your location, the apps on your device, and your history of where & when you use those apps. Together, iOS trys to present you with the app you would most-likely use at a given time, location, and history.
If you don’t like this feature, it can be turned off in Settings -> General -> Handoff & Suggested Apps.
Class AJXorEncryptor is implemented in both /Users/dongmeiliang/Library/Developer/CoreSimulator/Devices/71988A60-BE7B-425A-BDE4-AAE4D098A516/data/Containers/Bundle/Application/051ED3F9-A920-41C8-9D96-41EED06DE618/AJFrameDevApp.app/AJFrameDevApp and /Users/dongmeiliang/Library/Developer/Xcode/DerivedData/AJFrameDevApp-fwmhocnqvmbmzkftzzdryfyigyzs/Build/Products/Debug-iphonesimulator/AJFrameDevApp.app/PlugIns/AJFrameDevAppTests.xctest/AJFrameDevAppTests. One of the two will be used. Which one is undefined.
A:Base64 is a group of similar binary-to-text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation.
A binary-to-text encoding is encoding of data in plain text. More precisely, it is an encoding of binary data in a sequence of characters. These encodings are necessary for transmission of data when the channel does not allow binary data (such as email or NNTP) or is not 8-bit clean.
A: As we known, macro has many disatanges:1.lack type info;2.can be redfine. Since its a keyword in C, when should we use it?
There are occasions where macros provide functionality not available through other means.
For example, I have a simple macro I sometimes use when debugging Objective-C to log when certain methods are called. This can be done like so:
NSLog(@"%@: %@", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
This can’t be moved into an Objective-C method because it will always log the name of that method. (Obviously it can’t be moved into a C method, as there is no self and no _cmd variables available.) Creating a macro for this is straightforward, however:
Home of the World’s first free SIP/VoIP application for iPhone and iPod Touch 1 and 2.
Siphon SIP/VoIP project is the first in his category that works on iPhone and iPod Touch 2 with headset for all SIP providers. It is a nat>ive application approved running on 2.X using internal micro/speaker and headset.
The Application supports the SIP standard, preserving compatibility with hundreds of SIP providers and offers a GUI which preserves the ap>>ple design of native iPhone applications.
12. How to show a search icon in indexed table view?
If the data source includes this constant string in the array of strings it returns in sectionIndexTitlesForTableView:, the section index displays a magnifying glass icon at the corresponding index location. This location should generally be the first title in the index.
How to implement a function that active search bar when user tap magnifying glass icon?
First, add support for indexed table view;
// Create the search results controller and store a reference to it.
MySearchResultsController* resultsController = [[MySearchResultsController alloc] init];
self.searchController = [[UISearchController alloc] initWithSearchResultsController:resultsController];
// Use the current view controller to update the search results.
self.searchController.searchResultsUpdater = self;
// Install the search bar as the table header.
self.tableView.tableHeaderView = self.searchController.searchBar;
// It is usually good to set the presentation context.
self.definesPresentationContext = YES;
Note: set navigation bar to translucent via Interface Builder or Programatically self.navigationController.navigationBar.translucent = YES;, otherwise search bar will animate out table view.