'flutter start' calls 'flutter apk' if necessary.

flutter start no longer depends on a pre-built SkyShell.apk. It builds a
new one, as long as an AndroidManifest.xml exists.

We rebuild the .apk every time either AndroidManifest.xml or
flutter.yaml changes.

packages/flutter_tools/lib/src/commands/daemon.dart

@@ -253,6 +253,7 @@ class AppDomain extends Domain {
         command.devices,
         command.applicationPackages,
         command.toolchain,
+        command.buildConfigurations,
         target: args['target'],
         route: args['route'],
         checked: args['checked'] ?? true

packages/flutter_tools/lib/src/commands/listen.dart

@@ -41,6 +41,7 @@ class ListenCommand extends StartCommandBase {
         devices,
         applicationPackages,
         toolchain,
+        buildConfigurations,
         target: argResults['target'],
         install: firstTime,
         stop: true,

packages/flutter_tools/lib/src/commands/start.dart

@@ -10,9 +10,11 @@ import 'package:path/path.dart' as path;
 import '../application_package.dart';
 import '../base/common.dart';
 import '../base/context.dart';
+import '../build_configuration.dart';
 import '../device.dart';
 import '../runner/flutter_command.dart';
 import '../toolchain.dart';
+import 'apk.dart';
 import 'install.dart';
 import 'stop.dart';
 
@@ -92,7 +94,9 @@ class StartCommand extends StartCommandBase {
       devices,
       applicationPackages,
       toolchain,
+      buildConfigurations,
       target: argResults['target'],
+      enginePath: runner.enginePath,
       install: true,
       stop: argResults['full-restart'],
       checked: argResults['checked'],
@@ -111,8 +115,10 @@ class StartCommand extends StartCommandBase {
 Future<int> startApp(
   DeviceStore devices,
   ApplicationPackageStore applicationPackages,
-  Toolchain toolchain, {
+  Toolchain toolchain,
+  List<BuildConfiguration> configs, {
   String target,
+  String enginePath,
   bool stop: true,
   bool install: true,
   bool checked: true,
@@ -132,6 +138,14 @@ Future<int> startApp(
     return 1;
   }
 
+  if (install) {
+    printTrace('Running build command.');
+    applicationPackages = await buildAll(
+      devices, applicationPackages, toolchain, configs,
+      enginePath: enginePath,
+      target: target);
+  }
+
   if (stop) {
     printTrace('Running stop command.');
     stopAll(devices, applicationPackages);

packages/flutter_tools/lib/src/ios/device_ios.dart

@@ -614,7 +614,7 @@ class _IOSSimulatorLogReader extends DeviceLogReader {
       }
     );
 
-    return result;
+    return await result;
   }
 
   int get hashCode => device.logFilePath.hashCode;

packages/flutter_tools/pubspec.yaml

@@ -18,6 +18,7 @@ dependencies:
   stack_trace: ^1.4.0
   test: 0.12.6+1 # see note below
   yaml: ^2.1.3
+  xml: ^2.4.1
 
   flx:
     path: ../flx

packages/flutter_tools/test/listen_test.dart

@@ -4,6 +4,7 @@
 
 import 'package:args/command_runner.dart';
 import 'package:flutter_tools/src/commands/listen.dart';
+import 'package:flutter_tools/src/runner/flutter_command_runner.dart';
 import 'package:mockito/mockito.dart';
 import 'package:test/test.dart';
 
@@ -22,8 +23,7 @@ defineTests() {
       when(mockDevices.iOS.isConnected()).thenReturn(false);
       when(mockDevices.iOSSimulator.isConnected()).thenReturn(false);
 
-      CommandRunner runner = new CommandRunner('test_flutter', '')
-        ..addCommand(command);
+      CommandRunner runner = new FlutterCommandRunner()..addCommand(command);
       runner.run(['listen']).then((int code) => expect(code, equals(0)));
     });
   });