1. Battery optimization in
Android apps
Ngô Thanh Xuyên
xuyennt@vng.com.vn

2. • Battery consumption: Why should we care?
• What consumes power?
• How can we do better?

3. Battery consumption:
Why should we care?

4. Xuyên. Sao
app hao pin
vậy em?
App gì hao
pin quá vậy
hả? Gỡ app
Anh ơi! Sao app hao
pin vậy anh. Em
thích app anh lắm.
Nhưng chắc em
dùng app khác 
?

5. What consumes
power?

6. What consumes power?
Network I/O
Read write/local file database
Sleep/Standby Mode

7. How can we do
better?

8. Network I/O
• Open connection
• Avoid polling and use TCP persistent connections
• Avoid multiple connections
• Data
• Data format
• Compression
• Network Optimization
• Network parameters
• Connection policy

9. Read write/local file
database
• Memory Caching
• Use batch processing

10. Sleep/Standby mode

11. How can we do better?
• Monitoring the Battery Level and Charging State
• Determine the Current Charging State
• Monitor Changes in Charging State
• Use coarse network location

12. AT&T Application Resource
Optimizer (ARO)
AT&T ARO has two components:
• ARO Data Collector:
• Captures the data traffic of a mobile device and stores that
information in trace files
• ARO Data Analyzer:
• Evaluates trace data and generates statistical and analytical results
based on recommended best practices
• https://developer.att.com

13. Agilent 34401A Multimeter
• Agilent 34401A Multimeter