Boot logo animation modification

The first stage

Code modification method

• Prepare the logo
  • Make a new logo.bmp
    • The image attributes are the same as the default logo.bmp, otherwise an upside-down exception will occur
    • Both width and height are even numbers
• Replace logo
  • Replace kernel/logo.bmp

Second stage

Temporary modification method

• Prepare bootanimation.zip

  • Prepare png file

    • Both width and height are even numbers

  • Prepare desc.txt file, such as

    800 1280 30
    p 0 0 part0

    • 800 1280 30Meaning: the first two numbers represent the pixel width and height of the picture, 30 represents the number of frames, which is the number of pictures played in 1 second
    • p 0 0 part0Meaning: p stands for flag bit, 0 stands for infinite loop, 0 stands for the interval time between stages is 0, part0 stands for the corresponding folder
    • desc.txt text format: Unix+UTF-8

  • Make bootanimation.zip

    • Compressed into a zip file in storage method

• Push bootanimation.zip

  adb shell setprop persist.sys.root_access 3
  adb root
  adb remount
  adb push bootanimation.zip system/media/bootanimation.zip
  adb shell reboot

Code modification method

• Prepare bootanimation.zip

  • Put the prepared bootanimation.zip into the device/rockchip/CPU_TYPE/ directory

• In the device/rockchip/CPU_TYPE/device.mk file, add the following content:

  PRODUCT_COPY_FILES += \
         device/rockchip/CPU_TYPE/bootanimation.zip:/system/media/bootanimation.zip