Tips for using Android phones

Because the job isProgramThe relationship between members, familiar with the Android system, is disgusting. View

More and more friends are using Android phones, but they are not familiar with some skills. I want to summarize this article.Article.

Some colleagues at work also asked some questions about how to use Android mobile phones. I 'd like to find out more interesting or practical problems.

Tips orKnowledge.

Question 1: What is the screen resolution of my mobile phone?

 Resolution is not the only criterion for evaluating screen clarity 
 1. physical size refers to the actual size of the screen, which is determined by the size of the diagonal line of the screen. It is what we often call the concept of several inch screens. 
 2. Resolution is the number of pixels displayed on the screen, which we often call 320 × 480. 
The Rating Definition has a proprietary name called "PPI", which is determined based on the above two variables. 
 Simply put, the physical size is as large as the physical size. 
 The higher the Resolution, the better the screen definition (the higher the PPI ). 
 Problem 2: Mobile Phone SD card can be used as a USB flash drive 

 When an application is installed on a computer, it is usually opened to 91 (or "pea pod"). After the connection is completed, double-click the APK to start installation, 
 However, this method does not work when some weird computer systems cannot install the driver of your mobile phone. 
 In this case, you can view the "USB data storage" option in the drop-down notification bar and open it.
Wait a few seconds, open "my computer" on the computer, you will see 
 A "removable disk (x :)" is displayed like a USB flash drive :)".
Open it and copy the APK you want to install.
Then unplug the data cable and put it on your mobile phone. 
Open the file directory with the file management software, find the APK, and click Install. 

 Question 3: Can power-saving doctors help you save energy? 

 It cannot help you save power, but the application itself consumes a little more power. 
 Is there no value for such products? No, its value lies in being able to remind 
 You can record your daily charge. 
 This is also a strange phenomenon, because the user's superstition, so such products are "power-saving" as the product's main advertisement, but in fact 
 We recommend that you do not use such products. 

 Question 4: Can I buy software on Google Play? 
It should be said that in principle, but due to the blockage of GFW (Great Wall Network), the payment is successful. The following steps should be taken: 
 1. Install a software to remove the mobile phone area and make Google Play think that you are not a user in mainland China. 
 2. Wall flip Software 
 3. Register Google Wallet (Google Wallet). You need to provide a street address in the United States for registration.
, Me ...... Where can I find the US address. 
 I 've been playing this game for a long time ago, and the above steps have forgotten the order. I didn't finish it for one afternoon. I suggest 
 Do not waste time here. Search for pirated copies in various Chinese markets. 

 Question 5: Root permission 
 Root means the highest permission.
Many software installation requests root permission.
Security Products, screenshots (such as perfect screenshots), etc. If no 
If root, these software functions will be affected.
Although root is the highest level of permission, it is easy to expose the privacy of mobile phones. 
 Not that evil.
If the root user can still turn off the services provided by Google, these services will not be used by common users.  It saves a lot of power. 


 Write it here first. If some interesting questions are collected later, update it again! 

 Andy Zhai!