How to test the fluency of the Android phone

For the Android phone, we hear is to blame the system is not smooth, in the purchase of the most will ask the question is this phone fluent not smooth.

Some people buy mobile phones to see the configuration, but the same configuration of mobile phones, fluency is also very different, and some of the low phone is very fluent, some people see running points, but some mobile phone runs score high, fluency is very poor; worse, because everyone has their own fluency standards, the same mobile phone, Zhang feel not fluent, Doe feel good, buy before ask others can not have a correct reference.

So what should we look at?

What is the fluency of mobile phone

Mobile phone fluency, in fact, after the iphone appeared, the mobile phone has to drag the concept of sliding screen appears. Previously resistive screen, WM system mobile phone is not to be dragged smoothly.

and the screen to slide, there is a concept of the number of frames. We see the dynamic picture, is a frame frame static picture linkage up to achieve. This utilizes the visual retention of the human eye. The more static the screen in a second, the smoother our eyes feel. The number of static images, we call the number of frames.

We see the movie is 24 frames to 29 frames, is a second 24 static screen, because each frame of the movie is a fuzzy frame, contains a certain amount of time information, so 24 frames we look very fluent.

We watch the animation, play 3D games, because each frame is a clear picture, so it takes 1 seconds to 60 frames to feel fluent, some eyes particularly sensitive to even need 85 frames. But most of the 60 frames are enough, so our LCD screens are refreshed at 60 frames per second. And the mobile phone to smooth, also need to slide in the time to reach 60 frames per second, this is the fluency of the mobile phone.

Second, how to test the fluency of mobile phone?

Mobile phone fluency, in fact, is divided into different scenes. Smooth when sliding the desktop, but the game is not necessarily smooth, while watching the video smooth, but the zoom picture is not necessarily smooth. So the test of mobile phone fluency also needs a variety of software and methods.

(i) The smoothness of the system interface

The smoothness of the system interface, we usually use a software mobilexprt 2013, this software with two test projects, one is performance testing, there is a user experience test. Performance tests are similar to performance tests, such as bunnies, that run on the theoretical performance of the processor, and user experience tests to test the smoothness of the system's interface.

UX tests is the test user experience

The above diagram is a user experience test specific items, including menu sliding, interface sliding, gallery sliding, web browsing slide and zoom out. On this mobile phone test project, the Picture Gallery slide frame number is not enough, there will be not smooth feeling, the other sliding is 60 frames, the system experience is very smooth.

(ii) Fluency of common software

The user experience test for Mobilexprt 2013 is good, but it only represents the fluency of the system's own user interface, does not represent the fluency of the software that the user uses, and the user uses the software to be personalized. How can you tell if your favorite software is fluent on the phone you're buying?

This situation we use FPS meter to test, FPS Meter is a real-time frame number display software (need root), run in the background, you can real-time display the current program slide or run the number of frames.

Open the software, and then open your commonly used programs, fast sliding (test game does not need to slide, as long as the number of frames) to see whether the software shows the real-time number of frames in more than 60, you can determine if your commonly used programs can run smoothly on the phone.

Third, the flow of outside the number of frames

In addition to the number of frames, there are two factors that determine the fluency of the use of Android phones.

(i) Program opening speed

After clicking on the program, how long the program opens, directly determines the user experience. This is the hardware performance competition, but simple to see the rabbit total score is not out, because the rabbit total score contains too much, you see the Rabbit scored inside the Android virtual machine scored a more accurate,

(ii) Response time

The problem with the Android system is that the touch and screen response time is longer. Windows and iOS are much better. This is also the focus of each manufacturer optimization, this test no software can be solved, high-speed camera users do not have, there is a suggested method is to drag the icon fast Circle, look at the distance between the icon and the finger, the same spin speed, the icon distance from the finger closer the better.

Android's usual bunny run points don't represent the user experience, high configuration because of high resolution screen and system optimization reasons, may not be able to bring a smooth experience, and the above methods can be more accurate test Android mobile phone is fluent, pick up your phone to try it.