Compatibility tests are conducted for different operating system platforms, browsers, and the resolution of the tests carried out. Depending on the user's browser, often will make our web page style disorder occurs, the picture can not be displayed and so on. So we need to page for compatibility testing. For applications, we can not predict the user's client configuration and operating environment. So, do compatibility testing is very important.
Ps: What screen (main screen) size, how to count?
1 inch (inch) = 2.54 centimeter (cm)
We are talking about the length of the phone screen is 5.2 inches diagonal.
Resolution is what the hell?
1920px * 1080px resolution means that, in the 5.2-inch screen Huawei glory 7, 1920 pixel blocks in vertical height, the block has 1080 pixels in the lateral width.
What is the screen pixel density?
Screen pixel density, that is, the number of pixels per inch screen have, the English referred to as PPI.
What is the relationship of the screen pixel density, resolution, screen size is that?
Computer screen can adjust the resolution, is it by adjusting its pixel size to achieve?
People give you the recommended system is 1366px * 768px resolution, you know what it means? Yes, Microsoft on this screen transversely 768 pixels, 1366 pixels vertically disposed. And then how to pull this number is not changed. So, why can I adjust the resolution of it? If I was adjusted to 800px * 600px, by definition, it is the lateral 600 pixels, 800 pixels vertical is ah. Actually, you tune into a 800 * 600 resolution, the system will assign you an effective number of 800 * 600 pixels, which is the true color blocks. Other number it, given a free hand by the system, through a series of simulation calculation gives you a color block, just filled to 1366 x 768 color patches. These pixel blocks used to charge number, and the real pixel blocks put together. Like a regular army, which mixed with a lot of the same motley crew, only the team with the bad.
In fact, the clarity of the screen is the resolution and size of the joint decision, as measured by the clarity of the screen ppi index more accurate.