Android Boot Animation analysis

Boot animation file: Bootanimation.zip under the System\media folder
Animation is implemented by a series of image continuous brush screen.
Bootanimation.zip file is a zip compressed file, compression method requires storage compression, contains a file and two directories:
1. Animation Property Description File: Desc.txt
2. First stage animated picture catalog: part0
3. Second stage animated picture catalog: part1
Desc.txt File Contents:
480 800 30
P 1 0 part0
P 0 part1
Desc.txt File Analysis:
480 427 30
Width High Frame number
P 1 0 part0
Marker cycle time period switch interval corresponding directory name
P 0 part1
Marker cycle time period switch interval corresponding directory name
==================
Marker:
Must be: P
Number of Cycles:
0: Indicates an infinite loop at this stage
Phase Switching interval:
The unit is the duration of a frame, such as the number of frames is 30, then the duration of the frame is 1 seconds/30 = 33.3 milliseconds.
Phase switching interval time during the boot animation process into hibernation, the CPU time to initialize the system to use.
That is, the long interval starts quickly, but it affects the animationeffect.
The PART0 and Part1 directories contain a series of two animated images, in PNG or JPG format.
The load refresh of the series picture files is sorted by the name of the file name.

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To modify the boot animation:

First of all, regardless of the state of the water row first root
Second, download and install the re file manager.
Finally, download the attachment Bootanimation.zip to the SD card first
Then use the RE manager to copy to the system folder of the phone memory
And then modify the permissions first tick the first two, the second tick, the third, first, click OK! (Very important, in fact, you can first check the original permissions of the system, as well as his changes can be).
Then copy the Bootanimation.zip to the System\media file to overwrite the original bootanimation.zip. People carefully modify the permissions, not change the words will be black screen!

Attachment in the Boot animation:

• Size: 64.6 KB

• Bootanimation.zip

Android Boot Animation analysis