Debug Builds: A New Hope (Droidcon MTL 2015)

Debug Builds
A NEW HOPE
Matt Precious

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Sample code: U+2020
http://github.com/JakeWharton/u2020

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What we’ll need

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What we’ll need
• Gradle build variants

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What we’ll need
• Dagger

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What we’ll need
• Dagger
• Retroﬁt

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What we’ll need
• Dagger
• Retroﬁt
• OkHttp

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What we’ll need
• Dagger
• Retroﬁt
• OkHttp
• Timber

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Build conﬁguration

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• Types
• debug
• release

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• Types
• debug
• release
• Flavors
• internal
• production

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• Types
• debug
• release
• Flavors
• internal
• production
• Variants

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• Types
• debug
• release
• Flavors
• internal
• production
• Variants
• internalDebug

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• Types
• debug
• release
• Flavors
• internal
• production
• Variants
• internalDebug
• internalRelease

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• Types
• debug
• release
• Flavors
• internal
• production
• Variants
• internalDebug
• internalRelease
• productionDebug

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• Types
• debug
• release
• Flavors
• internal
• production
• Variants
• internalDebug
• internalRelease
• productionDebug
• productionRelease

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Debug drawer

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MainActivity (src/main)
public final class MainActivity extends Activity { 
 
@Override protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity); 
} 
}a

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Activity
Content
Container
Content

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Activity
Content
Container
Content
Debug
Drawer
Debug View

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AppContainer (src/main)
public interface AppContainer { 
ViewGroup bind(Activity activity); 
}a

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AppContainer (src/main)
public interface AppContainer { 
ViewGroup bind(Activity activity); 
 
AppContainer DEFAULT = new AppContainer() { 
@Override public ViewGroup bind(Activity activity) { 
return findById(activity, android.R.id.content); 
} 
}; 
}a

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UiModule (src/main)
@Provides @Singleton
AppContainer provideAppContainer() { 
return AppContainer.DEFAULT; 
}a

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super.onCreate(savedInstanceState);
}a 
}a

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@Inject AppContainer appContainer; 
 
super.onCreate(savedInstanceState); 
 
ObjectGraph appGraph = Injector.obtain(getApplication()); 
appGraph.inject(this);
!
}a 
}a

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appGraph.inject(this); 
 
ViewGroup container = appContainer.bind(this);
!
}a 
}a

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appGraph.inject(this); 
 
ViewGroup container = appContainer.bind(this); 
 
getLayoutInflater().inflate(R.layout.main_activity, container); 
}a 
}a

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debug_activity_frame (src/internalDebug)

 

 
android:id="@+id/debug_drawer" 
android:layout_gravity="right"
android:background="#ee212121"
/>
 

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android:background="#ee212121" 
/>
 

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DebugView (src/internalDebug)
public final class DebugView extends FrameLayout {
!
public DebugView(Context context) { 
this(context, null); 
}a 
 
public DebugView(Context context, AttributeSet attrs) { 
super(context, attrs); 
Injector.obtain(context).inject(this); 
 
LayoutInflater.from(context).inflate(R.layout.debug_view_content, this);
}a
}a

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DebugAppContainer (src/internalDebug)
@Singleton 
public final class DebugAppContainer implements AppContainer {
!
@Inject public DebugAppContainer() { }
!
@Override public ViewGroup bind(final Activity activity) {
}a
}a

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@Singleton 
!
!
activity.setContentView(R.layout.debug_activity_frame);
}a
}a

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@Singleton 
!
!
!
ViewGroup drawer = findById(activity, R.id.debug_drawer); 
DebugView debugView = new DebugView(activity); 
drawer.addView(debugView);
}a
}a

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@Singleton 
!
!
!
!
return findById(activity, R.id.debug_content);
!
}a
}a

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DebugUiModule (src/internalDebug)
AppContainer provideAppContainer(DebugAppContainer debugAppContainer) { 
return debugAppContainer; 
}a

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Endpoints

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ApiModule (src/main)
public static final String PRODUCTION_API_URL = "https://api.github.com"; 
 
@Provides @Singleton Endpoint provideEndpoint() { 
return Endpoints.newFixedEndpoint(PRODUCTION_API_URL); 
}

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ApiEndpoints (src/internalDebug)
public enum ApiEndpoints { 
PRODUCTION, 
STAGING, 
CUSTOM, 
}aa

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PRODUCTION("Production", ApiModule.PRODUCTION_API_URL), 
STAGING("Staging", "https://api.staging.github.com/"), 
CUSTOM("Custom", null); 
 
public final String name; 
public final String url; 
 
ApiEndpoints(String name, String url) { 
this.name = name; 
this.url = url; 
}a 
}aa

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DebugDataModule (src/internalDebug)
@Provides @Singleton @ApiEndpoint 
StringPreference provideEndpointPreference(SharedPreferences preferences) { 
return new StringPreference(preferences, “debug_endpoint",
ApiEndpoints.STAGING.url); 
}

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DebugApiModule (src/internalDebug)
@Provides @Singleton 
Endpoint provideEndpoint(@ApiEndpoint StringPreference apiEndpoint) { 
return Endpoints.newFixedEndpoint(apiEndpoint.get()); 
}

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debug_view_content (src/internalDebug)
style="@style/Widget.U2020.DebugDrawer.RowTitle"
android:text="Endpoint" 
/>
!

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private void setupNetworkSection() { 
}a

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@Inject @ApiEndpoint StringPreference networkEndpoint;
!
final ApiEndpoints currentEndpoint = ApiEndpoints.from(networkEndpoint.get()); 
}aa

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@InjectView(R.id.debug_network_endpoint) Spinner endpointView;
!
final EnumAdapter endpointAdapter = 
new EnumAdapter<>(getContext(), ApiEndpoints.class); 
endpointView.setAdapter(endpointAdapter); 
}aa

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!
final EnumAdapter endpointAdapter = 
new EnumAdapter<>(getContext(), ApiEndpoints.class); 
endpointView.setAdapter(endpointAdapter); 
endpointView.setSelection(currentEndpoint.ordinal()); 
}aa

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!
// ... 
endpointView.setOnItemSelectedListener((adapterView, view, position, id) -> { 
ApiEndpoints selected = endpointAdapter.getItem(position); 
if (selected != currentEndpoint) { 
if (selected == ApiEndpoints.CUSTOM) { 
showCustomEndpointDialog(); 
} else { 
setEndpointAndRelaunch(selected.url); 
}a 
}a 
}); 
}aa

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!
// ... 
}aa
!
private void setEndpointAndRelaunch(String endpoint) { 
networkEndpoint.set(endpoint); 
 
ProcessPhoenix.triggerRebirth(getContext()); 
}a

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!
// ... 
}aa
!
private void setEndpointAndRelaunch(String endpoint) { 
networkEndpoint.set(endpoint); 
 
ProcessPhoenix.triggerRebirth(getContext()); 
}a
!
!
!
https://gist.github.com/JakeWharton

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Charles

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Charles
• HTTP proxy

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Charles
• HTTP proxy
• Monitor network trafﬁc

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Charles
• HTTP proxy
• Request

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Charles
• HTTP proxy
• Request
• Response

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Charles
• HTTP proxy
• Request
• Response
• Headers

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Charles
• HTTP proxy
• Request
• Response
• Headers
• Intercept and modify requests and responses

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Charles
• HTTP proxy
• Request
• Response
• Headers
• Intercept and modify requests and responses
• http://www.charlesproxy.com/

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Network Proxy

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DataModule (src/main)
@Provides @Singleton OkHttpClient provideOkHttpClient(Application app) { 
return createOkHttpClient(app); 
}
!
static OkHttpClient createOkHttpClient(Application app) { 
OkHttpClient client = new OkHttpClient(); 
// ...
 
return client; 
}

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NetworkProxyPreference (src/internalDebug)
public final class NetworkProxyPreference extends StringPreference { 
public NetworkProxyPreference(SharedPreferences preferences, String key) { 
super(preferences, key); 
} 
 
public @Nullable Proxy getProxy() { 
if (!isSet()) return null; 
 
String[] parts = get().split(":", 2); 
String host = parts[0]; 
int port = parts.length > 1 ? Integer.parseInt(parts[1]) : 80; 
 
return new Proxy(HTTP, InetSocketAddress.createUnresolved(host, port)); 
} 
}

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OkHttpClient provideOkHttpClient(Application app) { 
OkHttpClient client = DataModule.createOkHttpClient(app); 
return client; 
}a

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OkHttpClient provideOkHttpClient(Application app, 
NetworkProxyPreference networkProxy) { 
OkHttpClient client = DataModule.createOkHttpClient(app);
 
client.setProxy(networkProxy.getProxy()); 
return client; 
}a

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OkHttpClient provideOkHttpClient(Application app, 
NetworkProxyPreference networkProxy) { 
OkHttpClient client = DataModule.createOkHttpClient(app);
 
client.setProxy(networkProxy.getProxy());
client.setSslSocketFactory(createBadSslSocketFactory()); 
return client; 
}a

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style="@style/Widget.U2020.DebugDrawer.RowTitle" 
android:text="Proxy" 
/>
 

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private void setupNetworkSection() {
// ...
}aa

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@InjectView(R.id.debug_network_proxy) Spinner networkProxyView;
@Inject NetworkProxyPreference networkProxy;
!
// ...
 
final ProxyAdapter proxyAdapter = new ProxyAdapter(getContext(), networkProxy); 
networkProxyView.setAdapter(proxyAdapter); 
}aa

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!
// ...
 
final ProxyAdapter proxyAdapter = new ProxyAdapter(getContext(), networkProxy); 
networkProxyView.setAdapter(proxyAdapter);
int proxyPosition = networkProxy.isSet() ? ProxyAdapter.PROXY : ProxyAdapter.NONE; 
networkProxyView.setSelection(proxyPosition); 
}aa

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@Inject OkHttpClient client;
!
// ...
 
networkProxyView.setOnItemSelectedListener((adapterView, view, position, d) -> { 
if (position == ProxyAdapter.NONE) { 
networkProxy.delete(); 
client.setProxy(null); 
} else { 
showNewNetworkProxyDialog(); 
}a 
});
}aa

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!
// ...
!
} else { 
}a 
});
}aa

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!
// ...
 
} else { 
}a 
});
}aa

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!
// ...
}aa
!
private void setProxyHost(String host) { 
networkProxy.set(host); 
 
Proxy proxy = networkProxy.getProxy(); 
client.setProxy(proxy); 
}

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Mock Mode

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GithubService (src/main)
public interface GithubService { 
@GET("/search/repositories") // 
Observable repositories( 
@Query("q") SearchQuery query, 
@Query("sort") Sort sort, 
@Query("order") Order order); 
}

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ApiModule (src/main)
GithubService provideGithubService(RestAdapter restAdapter) { 
return restAdapter.create(GithubService.class); 
}

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STAGING("Staging", "https://api.staging.github.com/"), 
 
 
this.url = url; 
}a 
}aa

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STAGING("Staging", "https://api.staging.github.com/"),
MOCK_MODE("Mock mode", "mock://"), 
 
 
this.url = url; 
}a 
}aa

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// ... 
public static boolean isMockMode(String endpoint) { 
return from(endpoint) == MOCK_MODE; 
}a
}aa

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@Provides @Singleton @IsMockMode
boolean provideIsMockMode(@ApiEndpoint StringPreference endpoint) { 
return ApiEndpoints.isMockMode(endpoint.get()); 
}

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MockRepositories (src/internalDebug)
static final Repository DAGGER = new Repository.Builder() 
.name("dagger") 
.owner(SQUARE) 
.description("A fast dependency injector for Android and Java.") 
.forks(574) 
.stars(3085) 
.htmlUrl("https://github.com/square/dagger") 
.updatedAt(DateTime.parse("2015-03-05")) 
.build();
!
// ...

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MockGithubService (src/internalDebug)
@Singleton 
public final class MockGithubService implements GithubService { 
 
@Inject MockGithubService() { } 
}a

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@Singleton 
 
@Inject MockGithubService() { } 
 
@Override public Observable repositories(SearchQuery query,
Sort sort, Order order) {
return Observable.just(new RepositoriesResponse(Arrays.asList( 
BUTTERKNIFE, 
DAGGER, 
OKHTTP, 
OKIO, 
PICASSO, 
RETROFIT, 
TELESCOPE, 
U2020))); 
} 
}a

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DebugApiModule (src/internalDebug)
@Provides @Singleton 
GithubService provideGithubService(RestAdapter restAdapter,
MockRestAdapter mockRestAdapter, @IsMockMode boolean isMockMode,
MockGithubService mockService) { 
if (isMockMode) { 
return mockRestAdapter.create(GithubService.class, mockService); 
}
 
return restAdapter.create(GithubService.class); 
}

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:)

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:) Loading Error
Empty One result Lots of results

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:) Loading Error
✔

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android:text="Delay" 
/> 
 
 
android:text="Error" 
/> 

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DebugApiModule
MockRestAdapter provideMockRestAdapter(RestAdapter restAdapter, 
SharedPreferences preferences) { 
MockRestAdapter mockRestAdapter = MockRestAdapter.from(restAdapter); 
AndroidMockValuePersistence.install(mockRestAdapter, preferences); 
return mockRestAdapter; 
}

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// ...
}aa

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@InjectView(R.id.debug_network_delay) Spinner networkDelayView;
!
// ...
!
final NetworkDelayAdapter delayAdapter = new NetworkDelayAdapter(getContext()); 
networkDelayView.setAdapter(delayAdapter); 
}aa

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@Inject MockRestAdapter mockRestAdapter;
!
// ...
!
networkDelayView.setSelection( 
NetworkDelayAdapter.getPositionForValue(mockRestAdapter.getDelay()));
}aa

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!
// ...
!
networkDelayView.setSelection( 
NetworkDelayAdapter.getPositionForValue(mockRestAdapter.getDelay())); 
networkDelayView.setOnItemSelectedListener((adapterView, view, position, id) -> { 
int selected = delayAdapter.getItem(position); 
if (selected != mockRestAdapter.getDelay()) { 
mockRestAdapter.setDelay(selected); 
}a 
});
}aa

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@InjectView(R.id.debug_network_error) Spinner networkErrorView;
!
// ...
!
final NetworkErrorAdapter errorAdapter = new NetworkErrorAdapter(getContext()); 
networkErrorView.setAdapter(errorAdapter); 
networkErrorView.setSelection( 
NetworkErrorAdapter.getPositionForValue(mockRestAdapter.getErrorPercentage())); 
networkErrorView.setOnItemSelectedListener((adapterView, view, position, id) -> { 
int selected = errorAdapter.getItem(position); 
if (selected != mockRestAdapter.getErrorPercentage()) { 
mockRestAdapter.setErrorPercentage(selected); 
}a 
});
}aa

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:) Loading Error
✔

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:) Loading Error
✔ ✔ ✔

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@Singleton 
 
@Inject MockGithubService() { 
}a 
 
@Override public Observable repositories(SearchQuery query,
Sort sort, Order order) {
return Observable.just(new RepositoriesResponse(Arrays.asList( 
BUTTERKNIFE, 
DAGGER, 
OKHTTP, 
OKIO, 
PICASSO, 
RETROFIT, 
TELESCOPE, 
U2020))); 
}a 
}aa

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new RepositoriesResponse(Arrays.asList( 
BUTTERKNIFE, 
DAGGER, 
OKHTTP, 
OKIO, 
PICASSO, 
RETROFIT, 
TELESCOPE, 
U2020))

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MockRepositoriesResponse (src/internalDebug)
public enum MockRepositoriesResponse { 
SUCCESS("Success", new RepositoriesResponse(Arrays.asList( 
BUTTERKNIFE, 
DAGGER, 
OKHTTP, 
OKIO, 
PICASSO, 
RETROFIT, 
TELESCOPE, 
U2020))); 
 
public final RepositoriesResponse response; 
 
MockRepositoriesResponse(String name, RepositoriesResponse response) { 
this.response = response; 
}a 
}aa

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MockRepositoriesResponse (src/internalDebug)
public enum MockRepositoriesResponse { 
SUCCESS("Success", new RepositoriesResponse(Arrays.asList( 
BUTTERKNIFE, 
DAGGER, 
OKHTTP, 
OKIO, 
PICASSO, 
RETROFIT, 
TELESCOPE, 
U2020))),
ONE("One", new RepositoriesResponse(Collections.singletonList(DAGGER))), 
EMPTY("Empty", new RepositoriesResponse(null)); 
 
public final RepositoriesResponse response; 
 
MockRepositoriesResponse(String name, RepositoriesResponse response) { 
this.response = response; 
}a 
}aa

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@Singleton 
// ... 
}aa

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@Singleton 
// ... 
 
public > T getResponse(Class responseClass) { // }
 
public > void setResponse(Class responseClass, T value) { // } 
}aa

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@Singleton 
// ... 
 
 
 
@Override public Observable repositories(SearchQuery query, 
Sort sort, Order order) { 
}a 
}aa

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@Singleton 
// ... 
 
 
 
RepositoriesResponse response =
getResponse(MockRepositoriesResponse.class).response; 
}a 
}aa

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@Singleton 
// ... 
 
 
 
 
// TODO: Sort the repositories based on the request. 
}a 
}aa

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@Singleton 
// ... 
 
 
 
// TODO: Sort the repositories based on the request. 
 
return Observable.just(response); 
}a 
}aa

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android:text="Repositories" 
/>
 

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private > void configureResponseSpinner(Spinner spinner, 
final Class responseClass) { 
}aa

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final EnumAdapter adapter = new EnumAdapter<>(getContext(), responseClass);
spinner.setAdapter(adapter);
}aa

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@Inject @IsMockMode boolean isMockMode;
!
spinner.setAdapter(adapter); 
spinner.setEnabled(isMockMode);
}aa

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@Inject MockGithubService mockGithubService;
!
spinner.setEnabled(isMockMode); 
spinner.setSelection(mockGithubService.getResponse(responseClass).ordinal()); 
}aa

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@Inject MockGithubService mockGithubService;
!
spinner.setEnabled(isMockMode); 
spinner.setSelection(mockGithubService.getResponse(responseClass).ordinal()); 
spinner.setOnItemSelectedListener((parent, view, position, id) -> { 
T selected = adapter.getItem(position); 
if (selected != mockGithubService.getResponse(responseClass)) { 
mockGithubService.setResponse(responseClass, selected); 
}a 
}); 
}aa

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@InjectView(R.id.debug_repositories_response) Spinner repositoriesResponseView;
!
private void setupMockBehaviorSection() { 
configureResponseSpinner(repositoriesResponseView,
MockRepositoriesResponse.class); 
}
!
// ... 
}aa

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Intent Capturing

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IntentFactory (src/main)
public interface IntentFactory { 
}a

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Intent createUrlIntent(String url); 
}a

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Intent createUrlIntent(String url); 
 
IntentFactory REAL = new IntentFactory() { 
@Override public Intent createUrlIntent(String url) { 
Intent intent = new Intent(Intent.ACTION_VIEW); 
intent.setData(Uri.parse(url)); 
 
return intent; 
} 
}; 
}a

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DataModule (src/main)
@Provides @Singleton IntentFactory provideIntentFactory() { 
return IntentFactory.REAL; 
}

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ExternalIntentActivity (src/internalDebug)
public final class ExternalIntentActivity extends Activity { 
}a

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public static final String ACTION = "com.jakewharton.u2020.intent.EXTERNAL_INTENT"; 
public static final String EXTRA_BASE_INTENT = "debug_base_intent"; 
}a

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public static final String EXTRA_BASE_INTENT = "debug_base_intent";
!
public static Intent createIntent(Intent baseIntent) { 
Intent intent = new Intent(); 
intent.setAction(ACTION); 
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
intent.putExtra(EXTRA_BASE_INTENT, baseIntent); 
return intent; 
}b 
}a

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public static final String EXTRA_BASE_INTENT = "debug_base_intent"; 
// ...
 
setContentView(R.layout.debug_external_intent_activity); 
 
Intent baseIntent = getIntent().getParcelableExtra(EXTRA_BASE_INTENT); 
// TODO: Show intent data. 
} 
}a

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@Provides @Singleton @CaptureIntents 
BooleanPreference provideCaptureIntentsPreference(SharedPreferences preferences) { 
return new BooleanPreference(preferences, "debug_capture_intents",
DEFAULT_CAPTURE_INTENTS); 
}

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DebugIntentFactory (src/internalDebug)
@Singleton 
public final class DebugIntentFactory implements IntentFactory { 
 
@Inject public DebugIntentFactory() { } 
}aa

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@Singleton 
private final IntentFactory realIntentFactory; 
private final boolean isMockMode; 
private final BooleanPreference captureIntents; 
 
@Inject public DebugIntentFactory( // ... ) { // ... } 
}aa

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@Singleton 
 
@Inject public DebugIntentFactory( // ... ) { // ... }
!
}a 
}aa

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@Singleton 
 
!
Intent baseIntent = realIntentFactory.createUrlIntent(url); 
}a 
}aa

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@Singleton 
 
!
Intent baseIntent = realIntentFactory.createUrlIntent(url); 
if (isMockMode && captureIntents.get()) {
return ExternalIntentActivity.createIntent(baseIntent); 
} else { 
return baseIntent; 
} 
}a 
}aa

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IntentFactory provideIntentFactory(DebugIntentFactory debugIntentFactory) { 
return debugIntentFactory; 
}

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Bug Reporting

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Telescope

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Telescope
• Press and hold 2 ﬁngers to trigger a bug report

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Telescope
• Takes a screenshot

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Telescope
• Calls your listener to handle the report

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Telescope
• Send an email

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Telescope
• Send an email
• Open a ticket via an API

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Telescope
• Send an email
• Open a ticket via an API
• https://github.com/mattprecious/telescope

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LumberYard (src/internal)
@Singleton
public final class LumberYard {
!
@Inject public LumberYard() { }
}a

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@Singleton
private final Deque entries = new ArrayDeque<>(BUFFER_SIZE + 1);
!
!
private synchronized void addEntry(Entry entry) { // ... }
}a

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@Singleton
!
!
public Timber.Tree tree() { 
return (DebugTree) logMessage(priority, tag, message) -> { 
addEntry(new Entry(priority, tag, message)); 
}; 
}b
!
}a

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@Singleton
!
!
public Timber.Tree tree() {
// ...
}b
!
!
public Observable save() { // ... }
}a

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BugReportLens (src/internal)
public final class BugReportLens implements Lens {
private final Context context; 
private final LumberYard lumberYard; 
 
private File screenshot; 
 
public BugReportLens(Context context, LumberYard lumberYard) { // ... }
}aa

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!
@Override public void onCapture(File screenshot) { 
this.screenshot = screenshot; 
// TODO: Show bug report dialog. 
}a
}aa

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!
@Override public void onCapture(File screenshot) { 
this.screenshot = screenshot; 
// TODO: Show bug report dialog. 
}a
!
private void submitReport(Report report, File logs) {
// TODO: Create email intent and set recipient.
// TODO: Pre-fill body with device and report information.
// TODO: Add screenshot and log file as attachment.
}
}aa

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android:id="@+id/debug_content"
/>
 
android:background="#ee212121"
/>
 

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@Singleton 
!
!
!
!
}a
}a

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@Singleton 
!
!
// ...
!
}a
}a

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@Singleton 
!
!
// ...
!
TelescopeLayout telescopeLayout = findById(activity, R.id.debug_content);
return telescopeLayout;
}a
}a

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@Singleton 
private final LumberYard lumberYard;
!
@Inject public DebugAppContainer(LumberYard lumberYard) {
this.lumberYard = lumberYard;
}a
!
// ...
!
TelescopeLayout telescopeLayout = findById(activity, R.id.debug_content);
telescopeLayout.setLens(new BugReportLens(activity, lumberYard));
}a
}a

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internal_activity_frame (src/internalRelease)
android:id="@+id/telescope_container"
/>

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TelescopeAppContainer (src/internalRelease)
@Singleton 
public final class TelescopeAppContainer implements AppContainer {
@InjectView(R.id.telescope_container) TelescopeLayout telescopeLayout;
!
private final LumberYard lumberYard;
!
@Inject public TelescopeAppContainer(LumberYard lumberYard) { 
this.lumberYard = lumberYard; 
}a
!
@Override public ViewGroup bind(final Activity activity) { 
activity.setContentView(R.layout.internal_activity_frame); 
ButterKnife.inject(this, activity); 
 
telescopeLayout.setLens(new BugReportLens(activity, lumberYard));
}a
}a

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InternalReleaseUiModule (src/internalRelease)
@Provides @Singleton AppContainer provideAppContainer( 
TelescopeAppContainer telescopeAppContainer) { 
return telescopeAppContainer; 
}

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Some more tools

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Some more tools
• Mock push notiﬁcations

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Some more tools
• Reset flags (ﬁnished on-boarding, seen help windows, etc.)

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Some more tools
• Shortcuts

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Some more tools
• Shortcuts
• DB operations

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Some more tools
• Shortcuts
• DB operations
• Show logs

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Some more tools
• Shortcuts
• DB operations
• Show logs
• Debug activity

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Some more tools
• Shortcuts
• DB operations
• Show logs
• Debug activity
• Contextual actions

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Final thoughts

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Final thoughts
• Fork U+2020!

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Final thoughts
• Fork U+2020!
• Your time is valuable

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Final thoughts
• Fork U+2020!
• Your time is valuable
• Add debug controls!

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Debug Builds
A NEW HOPE
Matt Precious

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Debug Builds
A NEW HOPE
Questions?
Matt Precious
@mattprec
+MatthewPrecious

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Debug Builds: A New Hope (Droidcon MTL 2015)

Debug Builds: A New Hope (Droidcon MTL 2015)

Matthew Precious

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