Step 1: Modify the battery power icon on the mobile phone to modify the battery icon, generally speaking, the picture file of the battery icon will be in system.apk, because each rom is different, so here are the two locations I know. First of all, change the suffix of system.apk file to zip, then double-click to open it, and then open res. In the drawble-hdpi folder, there is the position of the first possible power icon image file, and the other one is in the res, raw folder. Changed your battery icon. Here is a small explanation of the replacement of the three images in the raw folder. The size of these three pictures is 152* 160,152 * 160,380 *380, respectively, corresponding to the charging icon, battery icon, and digital power icon, open the picture can be found, the picture is arranged by some small ICONS, if you want to modify the power icon, then it is to make another three of the same size, the same file format, The small icon is different from the picture to replace, corresponding to the replacement of the image name should be exactly the same. Here is a way to make these pictures, I used a relatively less technical content is relatively simple method, is to use Meitu Xiuxiu. First of all, change the size of each of your small ICONS to 38*38, and then use the method of picture splicing to splice the small ICONS into the same order as the original three pictures. Then, rename the spliced pictures to the same as the original three pictures. Finally, it is to replace, and then copy the system. Change the permission to rw-r-r, replace the original system.apk, restart, power icon replacement is complete! Step 2: 1, to display hardcover power, you must first prepare a number of power pictures, and the same amount of charging power pictures, how many to see your own, the original power level 7 display is 7, in general, the accurate power is divided by percentage, so 101 power display 101 charging display, which can only require a base map, Add the numbers 1-100 to the base map to save them separately. Note: There are many power packs available for download on other networks, and those who do not want to reflect their personality can be downloaded to use. 2. The battery picture and charging indicator picture are located in framework-res.apkesdrawable-hdpi. The battery picture starts with stat_sys_battery, and the charging picture starts with stat_sys_battery_charge_anim. We can pull out as the base map, of course, we can also select another picture, after the corresponding 202 pictures, directly drag in winrar to framework-res.apk