Tweet
Tweet

Slide 1

Slide 1 text

Android Developer Options What can those toggles do for me? @asfalcone

Slide 2

Slide 2 text

Andrea Falcone Senior Software Engineer, Twitter / Fabric @asfalcone

Slide 3

Slide 3 text

No content

Slide 4

Slide 4 text

No content

Slide 5

Slide 5 text

No content

Slide 6

Slide 6 text

No content

Slide 7

Slide 7 text

No content

Slide 8

Slide 8 text

No content

Slide 9

Slide 9 text

No content

Slide 10

Slide 10 text

No content

Slide 11

Slide 11 text

No content

Slide 12

Slide 12 text

No content

Slide 13

Slide 13 text

No content

Slide 14

Slide 14 text

No content

Slide 15

Slide 15 text

$ adb bugreport

Slide 16

Slide 16 text

No content

Slide 17

Slide 17 text

UPTIME (uptime) MMC PERF (/sys/block/mmcblk0/stat) MEMORY INFO (/proc/meminfo) CPU INFO (top -n 1 -d 1 -m 30 -t) PROCESSES (ps -P) PROCESSES AND THREADS (ps -t -p -P) APP ACTIVITIES (dumpsys activity all) APP SERVICES (dumpsys activity service all) APP PROVIDERS (dumpsys activity provider all) SYSTEM LOG (logcat -v threadtime -d *:v) VM TRACES JUST NOW (/data/anr/traces.txt.bugreport)

Slide 18

Slide 18 text

No content

Slide 19

Slide 19 text

telnet localhost 5554 geo fix -71.09 42.36 emulator only

Slide 20

Slide 20 text

LocationManager

Slide 21

Slide 21 text

No content

Slide 22

Slide 22 text

protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); android.os.Debug.waitForDebugger(); int breakpoint = 1; }

Slide 23

Slide 23 text

No content

Slide 24

Slide 24 text

No content

Slide 25

Slide 25 text

No content

Slide 26

Slide 26 text

No content

Slide 27

Slide 27 text

No content

Slide 28

Slide 28 text

No content

Slide 29

Slide 29 text

No content

Slide 30

Slide 30 text

No content

Slide 31

Slide 31 text

No content

Slide 32

Slide 32 text

No content

Slide 33

Slide 33 text

No content

Slide 34

Slide 34 text

Margins Optical bounds Clip bounds

Slide 35

Slide 35 text

No content

Slide 36

Slide 36 text

No content

Slide 37

Slide 37 text

No content

Slide 38

Slide 38 text

No overdraw 1x overdraw 2x overdraw 3x overdraw 4+x overdraw

Slide 39

Slide 39 text

lint --check Overdraw src/main

Slide 40

Slide 40 text

No content

Slide 41

Slide 41 text

No content

Slide 42

Slide 42 text

No content

Slide 43

Slide 43 text

Original Monochrome Deuteranomaly Tritanomaly

Slide 44

Slide 44 text

No content

Slide 45

Slide 45 text

protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (savedInstanceState != null) { // TODO: Find Bugs Here! } else { ... } } public void onSaveInstanceState(Bundle savedInstanceState) { // TODO: Find Bugs Here! ... super.onSaveInstanceState(savedInstanceState); } public void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); // TODO: Find Bugs Here! ... }

Slide 46

Slide 46 text

No content

Slide 47

Slide 47 text

No content

Slide 48

Slide 48 text

adb over wifi!

Slide 49

Slide 49 text

$ adb devices List of devices attached xxxxxxx device Connect device via usb $ adb tcpip 5555 restarting in TCP mode port: 5555 Start adb in tcpip mode - while connected via usb Get device IP address Connect device via tcp $ adb connect 192.168.1.6 connected to 192.168.1.6:5555

Slide 50

Slide 50 text

$ adb shell More debugging tools: DDMS Hierarchy viewer Traceview

Slide 51

Slide 51 text

No content

Slide 52

Slide 52 text

Thank you! @asfalcone