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TOOLS OF THE TRADE
Hello!
I AM ZARAHI am an Android developer for
Domain.com.au
THE KEY
Know available tools
THE KEY
Know available toolsThere is no “correct” setup
CODE
FRAGMENTS
FRAGMENT LIFECYCLE
FragmentManager.enableDebugLogging(true);
SERVICES
SERVICES
@Override
public void onCreate() {
super.onCreate();
android.os.Debug.waitForDebugger();
// Do stuff in your service
Log.d("MyService", "I am inside the service!");
}
SERVICES
@Override
public void onCreate() {
super.onCreate();
android.os.Debug.waitForDebugger();
// Do stuff in your service
Log.d("MyService", "I am inside the service!");
}
SERVICES
◦ Put a breakpoint AFTER the call to wait
SERVICES
◦ Put a breakpoint AFTER the call to wait◦ Edit your Run Configurations
SERVICES
◦ Trigger service
SERVICES
◦ Trigger service◦ Attach debugger
<service
android:name="com.myapp.MySyncService"
android:exported="true"
android:process=":sync" >
BUILT-IN TOOLS
DEBUGGER
DEBUGGER
Say NO! to the green bug
DEBUGGER
Create a new keyboard shortcut for Attach Debugger to Android Process
Say NO! to the green bug
DEBUGGER
Create a new keyboard shortcut for Attach Debugger to Android Process
Say NO! to the green bug
Preferences > Keymap > Main Menu > Run > Attach Debugger to Android Process > Right Click > Add Keyboard Shortcut
DEBUGGER
Create a new keyboard shortcut for Attach Debugger to Android Process
Say NO! to the green bug
Preferences > Keymap > Main Menu > Run > Attach Debugger to Android Process > Right Click > Add Keyboard Shortcut AIN’T NOBODY GOT TIME FOR
THAT!
DEBUGGER
DEBUGGER
Run then Attach
BREAKPOINTS
BREAKPOINTS
BREAKPOINTS (AN ASIDE)
BREAKPOINTS
BREAKPOINTS
Stop during interesting iterations
BREAKPOINTS
Suspend on exceptions
BREAKPOINTS
If you have a bunch of breakpoints related to a particular bug, GROUP THEM
DEBUG TOOL WINDOW
DEBUG TOOL WINDOW
FRAMES
VARIABLES
VARIABLES
EVALUATING EXPRESSIONS
WATCHES
WATCHES
◦ Add variables and expressions◦ Resolved in the context of the
current frame
WATCHES
◦ Add variables and expressions◦ Resolved in the context of the
current frame
WATCHES
WATCHES
WATCHES
WATCHES
◦ No need to Timber/Toast/Log
WATCHES
◦ No need to Timber/Toast/Log◦ Like evaluated expressions, but
lots of them
WATCHES
◦ No need to Timber/Toast/Log◦ Like evaluated expressions, but
lots of them◦ Persistent across sessions
WATCHES
◦ No need to Timber/Toast/Log◦ Like evaluated expressions, but
lots of them◦ Persistent across sessions◦ Change expressions on the fly
Do even more: IntelliJ blog
SYSTEM INFORMATION
SYSTEM INFORMATION
Info dump of system state
SYSTEM INFORMATION
SYSTEM INFORMATION
Activity Manager StateActivity lifecycle state
Config values
Fragments and their states
View hierarchy
Choreography state
Looper state
SYSTEM INFORMATION
Activity Manager StateActivity lifecycle state
Config values
Fragments and their states
View hierarchy
Choreography state
Looper state
Package Info
Manifest information
APK info
User install info
SYSTEM INFORMATION
Activity Manager StateActivity lifecycle state
Config values
Fragments and their states
View hierarchy
Choreography state
Looper state
Package Info
Manifest information
APK info
User install info
Memory Usage
Memory allocations
Asset allocations
SYSTEM INFORMATION
Memory Usage over TimeRuntime stats
Memory usages
Low level info
SYSTEM INFORMATION
Memory Usage over TimeRuntime stats
Memory usages
Low level info
Graphics State
How well animations are doing
Cache info
View hierarchy
LAYOUT INSPECTOR
LAYOUT INSPECTOR
THIRD PARTY TOOLS
HUGO
Annotation-based = EASY
HUGO
Annotation-based = EASYShows method calls++
https://github.com/JakeWharton/hugo
9477-9477/io.plaidapp V/DataManager: ⇢ sourceLoaded(data=[Redraw Keyboard, Saas 01, Air Traveller App, Become a driver], page=2, key="DRIBBBLE_QUERY_Material Design")9477-9477/io.plaidapp V/DataManager: ⇠ sourceLoaded [0ms] = true
HUGO (AN ASIDE)
logm live template
ADB PLUGIN
App actions from within Studio
ADB PLUGIN
No fussing with Settings
https://github.com/pbreault/adb-idea
STETHO
Wealth of options
STETHO
Wealth of options◦ DB inspection
STETHO
Wealth of options◦ DB inspection◦ SharedPreferences
STETHO
Wealth of options◦ DB inspection◦ SharedPreferences◦ Network inspection
STETHO
Wealth of options◦ DB inspection◦ SharedPreferences◦ Network inspection◦ View hierarchy
STETHO
Wealth of options◦ DB inspection◦ SharedPreferences◦ Network inspection◦ View hierarchy◦ dumpapp
STETHO
http://facebook.github.io/stetho/
Source: Facebook
PIDCAT
Logcat with less pain
PIDCAT
Logcat with less pain
https://github.com/JakeWharton/pidcat
LEAK CANARY
LEAK CANARY
https://github.com/square/leakcanary
Source: Square
Some practical stuff
STUDIO IS BEING WEIRD
Cannot add breakpoint
STUDIO IS BEING WEIRD
Cannot add breakpointADB cannot see devices
STUDIO IS BEING WEIRD
First aid
STUDIO IS BEING WEIRD
First aid◦ Unplug then re-plug device
STUDIO IS BEING WEIRD
First aid◦ Unplug then re-plug device◦ Disable then re-enable ADB
integration
STUDIO IS BEING WEIRD
First aid◦ Unplug then re-plug device◦ Disable then re-enable ADB
integration◦ Invalidate caches and restart
STUDIO IS BEING WEIRD
First aid◦ Unplug then re-plug device◦ Disable then re-enable ADB
integration◦ Invalidate caches and restart◦ Disable the re-enable USB
debugging on device
But I really don’t want to do all that...
BETTER CODING, (HOPEFULLY) LESS DEBUGGING
Use support annotations
BETTER CODING, (HOPEFULLY) LESS DEBUGGING
Use support annotationsListen to Lint
BETTER CODING, (HOPEFULLY) LESS DEBUGGING
Use support annotationsListen to LintUse AppCompat methods
ADDITIONAL RESOURCES
Philippe Breault [Twitter]Jake Wharton [Github]Square [Github]
THANK YOU!
www.zdominguez.com+ZarahDominguez@zarahjutz
Thank you!
ANY QUESTIONS?
APPENDIX
SUPPORT ANNOTATIONS
Add the dependency**dependencies { compile 'com.android.support:support-annotations:24.2.0'}
SUPPORT ANNOTATIONS
Profitprivate void setThingsToTextView(int res1, int res2, int res3, int res4) { // do stuff}
private void setThingsToTextView(@IdRes int textView, @StringRes int introText, @DrawableRes int heroImage, @ColorRes int backgroundColour) { // do stuff}
SYSTEM INFORMATION
Activity Manager State
SYSTEM INFORMATION
Package Information
SYSTEM INFORMATION
Memory Usage
SYSTEM INFORMATION
Memory Usage over time
SYSTEM INFORMATION
Graphics state
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