Attempt to fix LaunchAppShowImeOnStartTest

Launch an ImeStateInitializeActivity to make sure
the Ime state is expected before we run into each
test.

Bug: 227146931
Test: atest FlickerTests:LaunchAppShowImeOnStartTest --rerun-until-failure 100
Change-Id: I41028a97757d65db06b06043b42cd433a6810135

tests/FlickerTests/src/com/android/server/wm/flicker/helpers/ImeStateInitializeHelper.kt

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm.flicker.helpers
+
+import android.app.Instrumentation
+import android.support.test.launcherhelper.ILauncherStrategy
+import android.support.test.launcherhelper.LauncherStrategyFactory
+import com.android.server.wm.flicker.testapp.ActivityOptions
+import com.android.server.wm.traces.common.FlickerComponentName
+import com.android.server.wm.traces.parser.toFlickerComponent
+
+class ImeStateInitializeHelper @JvmOverloads constructor(
+    instr: Instrumentation,
+    launcherName: String = ActivityOptions.IME_ACTIVITY_INITIALIZE_LAUNCHER_NAME,
+    component: FlickerComponentName =
+        ActivityOptions.IME_ACTIVITY_INITIALIZE_COMPONENT_NAME.toFlickerComponent(),
+    launcherStrategy: ILauncherStrategy = LauncherStrategyFactory
+            .getInstance(instr)
+            .launcherStrategy
+) : StandardAppHelper(instr, launcherName, component, launcherStrategy)

tests/FlickerTests/src/com/android/server/wm/flicker/ime/LaunchAppShowImeOnStartTest.kt

@@ -28,6 +28,7 @@ import com.android.server.wm.flicker.FlickerTestParameter
 import com.android.server.wm.flicker.FlickerTestParameterFactory
 import com.android.server.wm.flicker.dsl.FlickerBuilder
 import com.android.server.wm.flicker.helpers.ImeAppAutoFocusHelper
+import com.android.server.wm.flicker.helpers.ImeStateInitializeHelper
 import com.android.server.wm.flicker.helpers.setRotation
 import com.android.server.wm.traces.common.FlickerComponentName
 import org.junit.FixMethodOrder
@@ -71,17 +72,20 @@ import org.junit.runners.Parameterized
 class LaunchAppShowImeOnStartTest(private val testSpec: FlickerTestParameter) {
     private val instrumentation: Instrumentation = InstrumentationRegistry.getInstrumentation()
     private val testApp = ImeAppAutoFocusHelper(instrumentation, testSpec.startRotation)
+    private val initializeApp = ImeStateInitializeHelper(instrumentation)
 
     @FlickerBuilderProvider
     fun buildFlicker(): FlickerBuilder {
         return FlickerBuilder(instrumentation).apply {
             setup {
                 eachRun {
+                    initializeApp.launchViaIntent()
                     this.setRotation(testSpec.startRotation)
                 }
             }
             teardown {
                 eachRun {
+                    initializeApp.exit()
                     testApp.exit()
                 }
             }

tests/FlickerTests/test-apps/flickerapp/AndroidManifest.xml

@@ -52,6 +52,16 @@
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <activity android:name=".ImeStateInitializeActivity"
+                  android:theme="@style/no_starting_window"
+                  android:windowSoftInputMode="stateAlwaysHidden"
+                  android:label="ImeStateInitializeActivity"
+                  android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
         <activity android:name=".SeamlessRotationActivity"
              android:taskAffinity="com.android.server.wm.flicker.testapp.SeamlessRotationActivity"
              android:theme="@style/CutoutShortEdges"

tests/FlickerTests/test-apps/flickerapp/res/values/styles.xml

@@ -42,4 +42,8 @@
         <item name="android:backgroundDimEnabled">false</item>
         <item name="android:windowSoftInputMode">stateUnchanged</item>
     </style>
+
+    <style name="no_starting_window" parent="@android:style/Theme.DeviceDefault">
+        <item name="android:windowDisablePreview">true</item>
+    </style>
 </resources>

tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityOptions.java

@@ -37,6 +37,11 @@ public class ActivityOptions {
             new ComponentName(FLICKER_APP_PACKAGE,
                     FLICKER_APP_PACKAGE + ".ImeActivity");
 
+    public static final String IME_ACTIVITY_INITIALIZE_LAUNCHER_NAME = "ImeStateInitializeActivity";
+    public static final ComponentName IME_ACTIVITY_INITIALIZE_COMPONENT_NAME =
+            new ComponentName(FLICKER_APP_PACKAGE,
+                    FLICKER_APP_PACKAGE + ".ImeStateInitializeActivity");
+
     public static final String SIMPLE_ACTIVITY_LAUNCHER_NAME = "SimpleApp";
     public static final ComponentName SIMPLE_ACTIVITY_AUTO_FOCUS_COMPONENT_NAME =
             new ComponentName(FLICKER_APP_PACKAGE,

tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ImeStateInitializeActivity.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm.flicker.testapp;
+
+import android.app.Activity;
+import android.graphics.Color;
+import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+
+/**
+ * A nop {@link Activity} to make sure that the test starts from a deterministic state.
+ *
+ * <p>Currently this {@link Activity} makes sure the following things</p>
+ * <li>
+ *     <ul>Hide the software keyboard with
+ *     {@link android.view.WindowManager.LayoutParams#SOFT_INPUT_STATE_ALWAYS_HIDDEN}</ul>
+ *     <ul>Make sure that the navigation bar (if supported) is rendered with {@link Color#BLACK}.
+ *     </ul>
+ * </li>
+ */
+public class ImeStateInitializeActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle bundle) {
+        super.onCreate(bundle);
+        final View view = new View(this);
+        view.setBackgroundColor(Color.WHITE);
+        view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.MATCH_PARENT));
+
+        // Make sure that navigation bar is rendered with black (if supported).
+        getWindow().setNavigationBarColor(Color.BLACK);
+
+        setContentView(view);
+    }
+}