All iphone screen resolutions

iOS Device Compatibility Reference

Displays

The display is a key part of the great user experience on iOS devices. Users interact with the display surface, and see the results after an app reacts to these touches and updates the displayed image. Apple continues to improve the display hardware and software pipeline that drives the display, so understanding the display characteristics is often a critical part of creating a great user experience.

iOS Device Display Summary

Table 2-1 summarizes the physical dimensions of iOS displays and how those pixels are mapped to the logical coordinate system in UIKit.

Native Resolution (Pixels)

UIKit Size (Points)

Native Scale factor

UIKit Scale factor

iPad Pro 12.9-inch (2nd generation)

iPad Pro 10.5-inch

iPad Pro (12.9-inch)

iPad Pro (9.7-inch)

At runtime, use the bounds and scale properties of a UIScreen object to understand how UIKit present the display to your app, and the nativeBounds and nativeScale when you need to work with the exact number of pixels on the display.

If the native scale differs from the UIKit scale factor, then iOS first renders the content at the UIKit scale factor and then scales it to fit into the native number of pixels on the screen. For games and other apps that perform many calculations per pixel, rendering these additional pixels can be expensive. Instead, configure a view to render at the native scale instead. For more information on how to do this in Metal, see Native Screen Scale (iOS and tvOS) .

Table 2-2 describes the ability to reproduce color and adapt the color display to the environment around the device.

Native Color Space

Active Color Management

iPad Pro 12.9-inch (2nd generation)

iPad Pro 10.5-inch

iPad Pro (12.9-inch)

iPad Pro (9.7-inch)

The P3 Display color space has a larger color gamut than an sRGB color space, with more saturated reds and greens. For information on supporting wide color in your app, see WWDC 2016 — Session 712: Working with Wide Color .

A True Tone display uses advanced ambient light sensors to automatically adapt the color and intensity of the display to match the light in the surrounding environment. Different kinds of apps many need to react to these changes differently. To specify how the display should adapt when your app is frontmost, see UIWhitePointAdaptivityStyle .

Table 2-3 describes the rate at which the hardware can adjust the contents of the screen.

Recommended Frame Rates

iPad Pro 12.9-inch (2nd generation)

120, 60, 40, 30, 24, 20

iPad Pro 10.5-inch

120, 60, 40, 30, 24, 20

iPad Pro (12.9-inch)

iPad Pro (9.7-inch)

Under most circumstances, UIKit handles redrawing and animation for you, adjusting the frame rate as necessary to provide a good viewing experience with reasonable energy usage. However, when you configure a view animation, you can optionally specify a hint when you know that the animation should run at a higher or lower rate. For more information, see UIViewAnimationOptions .

In full screen apps and games, animation is often driven explicitly using a CADisplayLink object. Set the display link’s preferredFramesPerSecond property to the frame rate you want, ideally using one of the preferred values specified in Table 2-3 . SpriteKit, SceneKit, or MetalKit also provide this property on the the SKView , SCNView , and MTKView classes. For more information on animating content in Metal, see Frame Rate (iOS and tvOS) .

Table 2-4 summarize the how often the display register touches from fingers or Apple Pencil and delivers them to UIKit.

Touch Sample Rate

Apple Pencil Sample Rate

Touch Delivery Rate

iPad Pro 12.9-inch (2nd generation)

iPad Pro 10.5-inch

iPad Pro (12.9-inch)

iPad Pro (9.7-inch)

The display hardware periodically captures data from sensors embedded in the screen. When a user touches the screen, the sensor information is recorded, processed, and delivered to UIKit. On displays that support 3D Touch, additional information about how much pressure the user applied to the display is also recorded. Only some displays support Apple Pencil. On these displays, the capture rate is different when reading Apple Pencil events than the capture rate for finger touches, and additional stylus information, such as the azimuth, is also recorded in each event.

When the capture rate is higher than the delivery rate, multiple events are coalesced into one touch event whose location reflects the most recent touch. However, the additional touch information is available for apps that need more precision.

For more information on event handling, coalesced touches, 3D Touch, and Apple Pencil, see Event Handling Guide for iOS .

Display Features Overview

These subsections provide further details on the features listed in iOS Device Display Summary above.

Screen Geometry

Use the nativeBounds , bounds , nativeScale , and scale properties of a UIScreen object to retrieve the characteristics of a display.

If the native scale differs from the UIKit scale factor, then iOS first renders any content at the UIKit scale factor and then downsamples it to fit on the screen. For games and other apps that perform many calculations per pixel, rendering these additional pixels can be expensive. Instead, use a view that is configured to render at the native scale instead. For more information on how to do this in Metal, see Native Screen Scale (iOS and tvOS) .

Color Reproduction

The P3 Display color space has a larger color gamut than an sRGB color space, with more saturated reds and greens. For information on how to support wide color in your app, see WWDC 2016 — Session 712: Working with Wide Color .

A True Tone display uses advanced ambient light sensors to automatically adapt the color and intensity of the display to match the light in the surrounding environment. You can configure your app to define how the display’s white point is adjusted when your app is front most. For more information, see UIWhitePointAdaptivityStyle .

Display Refresh

Under most circumstances, UIKit handles redrawing and animation for you, adjusting the frame rate as necessary to provide a good viewing experience with reasonable energy usage. However, when you configure a view animation, you can optionally specify a hint that specifies whether that animation should run at a higher or lower rate. For more information, see UIViewAnimationOptions .

In full screen apps and games, animation is often driven explicitly using a CADisplayLink object. Set the display link’s preferredFramesPerSecond property to the frame rate you want, ideally using one of the preferred values specified in Table 2-3 . SpriteKit, SceneKit, or MetalKit also provide this property on the the SKView , SCNView , and MTKView classes. For more information on animating content in Metal, see Frame Rate (iOS and tvOS) .

Touch Input

The display hardware periodically captures data from sensors embedded in the screen. When a user touches the screen, the sensor information is recorded, processed, and delivered to UIKit. On displays that support 3D Touch, additional information about how much pressure the user applied to the display is also recorded. On displays that support Apple Pencil, the capture rate is different when an Apple Pencil is in use, and additional stylus information, such as the azimuth, is also recorded.

When the capture rate is higher than the delivery rate, multiple events are coalesced into one touch event whose location reflects the most recent touch. However, the additional touch information is available for apps that need more precision.

For more information on event handling, coalesced touches, 3D Touch, and Apple Pencil, see UIKit .

Copyright © 2017 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2017-10-30

Источник

Base Converter and Calc Pro 4+

Mike Check

Designed for iPhone

iPhone Screenshots

Description

Updated for all iPhone screen sizes!

Now even more powerful! Work with fractional numbers too!

Another base converter!? This app doesn’t just convert between common bases, but allows conversion across any of the bases between 2 and 36.

You can also store numbers in any base for later use. Unlimited memory slots are available, with shortcuts to the most recent saved numbers at the bottom of the screen.

All features are packed into a clean and organized interface.

Features:
— Convert any number effortlessly between base 2 and 36
— Input and calculation of decimal numbers in all bases
— Customize your base shortcuts at the top of the screen
— Store unlimited numbers in memory, each in their own base
— Add, Subtract, Multiply, and Divide — Even across bases!
— Dark and Light UI themes

Planned Future Updates will Include:
— Advanced functions including Sin, Cos, Tan
— Mathematical constants

Questions? Comments? Contact us anytime, we’d love to hear from you!

Источник

Constitution for iPhone 4+

Constitution in your pocket‪!‬

Clint Bagwell Consulting

Designed for iPhone

• • 3.8 • 80 Ratings

• • Free
  • Offers In-App Purchases

iPhone Screenshots

Description

Senator Sam Ervin pulled one out of his pocket during the Watergate Hearings.

Now prepare to own any legal debate with a copy of the US Constitution on your iPhone or iPod Touch!

What’s New

Improved support for iOS 12

Ratings and Reviews

Good enough

All the information and text is there but the GUI is meh. Also hasn’t been updated to fit newer iphone screen resolutions

I had 3 ads within the first 5 minutes. You can’t terminate them early. Missing some docs

I was very disappointed about what was listed and what was not. This could have been the single best ap out there. The images and layout are excellent. If the developer could have set the hard core politics to the side and focused on the true and correct documents (all of them) this could have been the “go to app” for teachers, students, media and politicians and all US patriots alike. I would have much more be willing to pay a reasonable fee like $1-$2 dollars. Something that any student could easily afford. This app if politically neutral has the potential to be the best app (and best sold) out there. Stick to the facts (all of them) and this would be a real winner.

OK but sloppy in some parts

I’ve been using the free version of this app for years. I recently read and found very interesting the list of amendments not ratified by states.

The app gets sloppy through poor use of quotation marks in some places — unacceptable!

I would like more notes that provide context to the language chosen, compromises for ratification, and legal challenges and theoretical arguments that have arisen from the amendments. I find myself using other sources in conjunction with this app.

App Privacy

The developer, Clint Bagwell Consulting , has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

Источник

Constitution for iPhone 4+

Constitution in your pocket‪!‬

Clint Bagwell Consulting

Designed for iPhone

• • 3.8 • 80 Ratings

• • Free
  • Offers In-App Purchases

iPhone Screenshots

Description

Senator Sam Ervin pulled one out of his pocket during the Watergate Hearings.

Now prepare to own any legal debate with a copy of the US Constitution on your iPhone or iPod Touch!

What’s New

Improved support for iOS 12

Ratings and Reviews

Good enough

All the information and text is there but the GUI is meh. Also hasn’t been updated to fit newer iphone screen resolutions

I had 3 ads within the first 5 minutes. You can’t terminate them early. Missing some docs

I was very disappointed about what was listed and what was not. This could have been the single best ap out there. The images and layout are excellent. If the developer could have set the hard core politics to the side and focused on the true and correct documents (all of them) this could have been the “go to app” for teachers, students, media and politicians and all US patriots alike. I would have much more be willing to pay a reasonable fee like $1-$2 dollars. Something that any student could easily afford. This app if politically neutral has the potential to be the best app (and best sold) out there. Stick to the facts (all of them) and this would be a real winner.

OK but sloppy in some parts

I’ve been using the free version of this app for years. I recently read and found very interesting the list of amendments not ratified by states.

The app gets sloppy through poor use of quotation marks in some places — unacceptable!

I would like more notes that provide context to the language chosen, compromises for ratification, and legal challenges and theoretical arguments that have arisen from the amendments. I find myself using other sources in conjunction with this app.

App Privacy

The developer, Clint Bagwell Consulting , has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

Источник