Interpreting AppIcon icon settings information and app memory warning thresholds

In front of the classmate asked the iOS memory warning threshold and the project in the AppIcon of some configuration information, I believe that the new students, may have encountered similar problems, record for later inquiries.

1, the first simple to say AppIcon icon configuration information

1), on the right of the app icon tick option, temporarily only select support iphone iOS7.0 and later, indicating that these icons only support iphone device (including ipod) iOS system minimum 7.0 to the latest system;

2), 2x icon indicates support on Retina display, 3x icon indicates support display on plus screen size 5.5 inches;

3), and then look at the middle of the icon, distinguish the desktop icon icon and setting, Spotlight icons:

A, iOS 7-9 60pt represents the desktop icon 60pt size on iOS System 7 to the latest system

B, Spotlight iOS 7-9 40pt represents the icon for the drop-down search (Spotlight) on the desktop of the phone (iOS System 7 to the latest 40pt);

C, Settings-ios 5-9 29pt means search icon in Phone settings (support IOS system 5 to latest 29PT)

Now with simulator 5S, iOS version 9.3 for testing

Desktop icons:

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Desktop drop-down search icon:

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Set the inside Search icon:

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2, start picture launchimage picture Set parameter Description , first look:

1), iphone Portrait iOS 8,9: represents iphone device vertical screen, support iOS system 8 to latest

2), iphone Landscape iOS 8,9: Indicates iphone device landscape, support iOS system 8 to latest

3, the app's memory warning threshold value Description

When the app runs too high a memory footprint, the program reports a "Memory warning"

-(void) didreceivememorywarning {    [super didreceivememorywarning];     // Dispose of any resources the can be recreated.}

What is the critical value of the memory warning? You can find the answer from the Xcode tool information:

The program reports a "memory warning" when a single program runs half as much memory as the device is running.

For example, 512M running memory, the program runs on 256M when the memory warning;

1G of running memory, program run consumes 512M that memory warning ....

Three sheets (4S real machine, 5c real machine, simulator):

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Original link: http://www.cnblogs.com/tandaxia/p/5855250.html

Interpreting AppIcon icon settings information and app memory warning thresholds