概述App Icons on iPad and iPhone Q: How are the icon files in my application bundle used on iPad and iPhone? A: Below are guidelines for handling icon files for iPhone-only apps, iPad-only apps, and unive
App Icons on iPad and iPhone
Q: How are the icon files in my application bundle used on iPad and iPhone?
A: Below are guIDelines for handling icon files for iPhone-only apps,iPad-only apps,and universal apps.
important: Icons marked with "required" must be supplIEd in your application bundle.
iPhone-only Apps
Include the following in your application's Resources group in the Xcode project:
table 1 : iPhone-only apps icon requirements.
Image Size (px)
file name
Used For
required Status
Notes
512x512
iTunesArtwork
Ad Hoc iTunes
Optional but recommended
file should be in png format,but name it without the .png extension
Spotlight and Settings for iPhone 4 High Resolution
Recommended if you have a Settings bundle,otherwise optional but recommended
<None>
Your Resources group should look similar to Figure 1:
figure 1: Add files to Resources group
Except for iTunesArtWork icon,List the names of each of these files in the Icon files entry in the Info.pList, in the order shown in the table. Follow the steps in "Add Icon files in Info.pList" section below. See Figure 4.
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iPad-only Apps
Include the following in your application's Resources group in the Xcode project:
table 2 : iPad-only apps icon requirements.
Image Size (px)
file name
Used For
required Status
Notes
512x512
iTunesArtwork
Ad Hoc iTunes
Optional but recommended
file should be in png format,but name it without the .png extension
72x72
Icon-72.png
App Store and Home screen on iPad
required
<None>
50x50
Icon-Small-50.png
Spotlight on iPad
Optional but recommended
<None>
29x29
Icon-Small.png
Settings on iPad
Recommended if you have a Settings bundle,otherwise optional but recommended
<None>
Except for iTunesArtWork icon, in the order shown in the table. Follow the steps in "Add Icon files in Info.pList" section below. See Figure 5.
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Universal Apps
Include the following in your application's Resources group in the Xcode project:
table 3 : Universal apps icon requirements.
Image Size (px)
file name
Used For
required Status
Notes
512x512
iTunesArtwork
Ad Hoc iTunes
Optional but recommended
file should be in png format,but name it without the .png extension
57x57
Icon.png
App Store and the Home screen on iPhone/iPod touch
Spotlight and Settings for iPhone 4 High Resolution
Recommended if you have a Settings bundle, in the order shown in the table. Follow the steps in "Add Icon files in Info.pList" section below. See Figure 4.
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Add Icon files in Info.pList
To add the Icon files entry you will need to manually edit your Info.pList.
Open your Info.pList in Xcode,and locate the "Icon file" entry. Click on the plus (+) button at the end of the entry to make a new key entry. as shown in Figure 2.
figure 2: Add a new entry under "Icon file" key
Then,type "Icon files" in the key column (notice the "s" added),or choose "Icon files" from the drop down List,as shown in Figure 3.
figure 3: Add "Icon files" key in Info.pList
Next,turn down the disclosure triangle on "Icon files" and add the entrIEs for the icons for your application,as shown in Figure 4 and Figure 5:
figure 4: Add icon file entrIEs for iPhone-only or Universal apps.
figure 5: Add entrIEs for iPad icon files.
Note: If you don't provIDe one of the Listed optional icons,the system will automatically scale one of your existing icons to an appropriate size. However,it is strongly recommended that your application supply all the icons Listed with specific sizes needed.
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