--- /dev/null
+/*
+ * Copyright (C) 2017 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.settings.fuelgauge;
+
+import android.app.AppOpsManager;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.support.annotation.VisibleForTesting;
+import android.support.v14.preference.SwitchPreference;
+import android.support.v7.preference.Preference;
+import android.util.Log;
+import com.android.settings.core.PreferenceController;
+
+/**
+ * Controller to control whether an app can run in the background
+ */
+public class BackgroundActivityPreferenceController extends PreferenceController implements
+ Preference.OnPreferenceChangeListener {
+
+ private static final String TAG = "BgActivityPrefContr";
+ private static final String KEY_BACKGROUND_ACTIVITY = "background_activity";
+
+ private final PackageManager mPackageManager;
+ private final AppOpsManager mAppOpsManager;
+ private final String[] mPackages;
+ private final int mUid;
+
+ private String mTargetPackage;
+
+ public BackgroundActivityPreferenceController(Context context, int uid) {
+ super(context);
+ mPackageManager = context.getPackageManager();
+ mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
+ mUid = uid;
+ mPackages = mPackageManager.getPackagesForUid(mUid);
+ }
+
+ @Override
+ public void updateState(Preference preference) {
+ final int mode = mAppOpsManager
+ .checkOpNoThrow(AppOpsManager.OP_RUN_IN_BACKGROUND, mUid, mTargetPackage);
+
+ if (mode == AppOpsManager.MODE_ERRORED) {
+ preference.setEnabled(false);
+ } else {
+ ((SwitchPreference) preference).setChecked(mode != AppOpsManager.MODE_IGNORED);
+ }
+ }
+
+ @Override
+ public boolean isAvailable() {
+ if (mPackages == null) {
+ return false;
+ }
+ for (final String packageName : mPackages) {
+ if (isLegacyApp(packageName)) {
+ mTargetPackage = packageName;
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ @Override
+ public String getPreferenceKey() {
+ return KEY_BACKGROUND_ACTIVITY;
+ }
+
+ @Override
+ public boolean onPreferenceChange(Preference preference, Object newValue) {
+ boolean switchOn = (Boolean) newValue;
+ mAppOpsManager.setUidMode(AppOpsManager.OP_RUN_IN_BACKGROUND, mUid,
+ switchOn ? AppOpsManager.MODE_DEFAULT : AppOpsManager.MODE_IGNORED);
+
+ return true;
+ }
+
+ @VisibleForTesting
+ boolean isLegacyApp(final String packageName) {
+ try {
+ ApplicationInfo info = mPackageManager.getApplicationInfo(packageName,
+ PackageManager.GET_META_DATA);
+
+ return info.targetSdkVersion < Build.VERSION_CODES.O;
+ } catch (PackageManager.NameNotFoundException e) {
+ Log.e(TAG, "Cannot find package: " + packageName, e);
+ }
+
+ return false;
+ }
+}
--- /dev/null
+/*
+ * Copyright (C) 2017 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.settings.fuelgauge;
+
+import android.app.AppOpsManager;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.support.v14.preference.SwitchPreference;
+
+import com.android.settings.TestConfig;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Answers;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class BackgroundActivityPreferenceControllerTest {
+ private static final int UID_NORMAL = 1234;
+ private static final int UID_SPECIAL = 2345;
+ private static final String HIGH_SDK_PACKAGE = "com.android.package.high";
+ private static final String LOW_SDK_PACKAGE = "com.android.package.low";
+ private static final String[] PACKAGES_NORMAL = {LOW_SDK_PACKAGE};
+ private static final String[] PACKAGES_SPECIAL = {HIGH_SDK_PACKAGE, LOW_SDK_PACKAGE};
+
+ @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+ private Context mContext;
+ @Mock
+ private PackageManager mPackageManager;
+ @Mock
+ private AppOpsManager mAppOpsManager;
+ @Mock
+ private SwitchPreference mPreference;
+ @Mock
+ private ApplicationInfo mHighApplicationInfo;
+ @Mock
+ private ApplicationInfo mLowApplicationInfo;
+ private BackgroundActivityPreferenceController mController;
+
+ @Before
+ public void setUp() throws Exception {
+ MockitoAnnotations.initMocks(this);
+
+ when(mContext.getPackageManager()).thenReturn(mPackageManager);
+ when(mContext.getSystemService(Context.APP_OPS_SERVICE)).thenReturn(mAppOpsManager);
+ when(mPackageManager.getPackagesForUid(UID_NORMAL)).thenReturn(PACKAGES_NORMAL);
+ when(mPackageManager.getPackagesForUid(UID_SPECIAL)).thenReturn(PACKAGES_SPECIAL);
+
+ when(mPackageManager.getApplicationInfo(HIGH_SDK_PACKAGE, PackageManager.GET_META_DATA))
+ .thenReturn(mHighApplicationInfo);
+ when(mPackageManager.getApplicationInfo(LOW_SDK_PACKAGE, PackageManager.GET_META_DATA))
+ .thenReturn(mLowApplicationInfo);
+ mHighApplicationInfo.targetSdkVersion = Build.VERSION_CODES.O;
+ mLowApplicationInfo.targetSdkVersion = Build.VERSION_CODES.L;
+
+ mController = new BackgroundActivityPreferenceController(mContext, UID_NORMAL);
+ mController.isAvailable();
+ }
+
+ @Test
+ public void testOnPreferenceChange_TurnOnCheck_MethodInvoked() {
+ mController.onPreferenceChange(mPreference, true);
+
+ verify(mAppOpsManager).setUidMode(AppOpsManager.OP_RUN_IN_BACKGROUND,
+ UID_NORMAL, AppOpsManager.MODE_DEFAULT);
+ }
+
+ @Test
+ public void testOnPreferenceChange_TurnOffCheck_MethodInvoked() {
+ mController.onPreferenceChange(null, false);
+
+ verify(mAppOpsManager).setUidMode(AppOpsManager.OP_RUN_IN_BACKGROUND,
+ UID_NORMAL, AppOpsManager.MODE_IGNORED);
+ }
+
+ @Test
+ public void testUpdateState_CheckOn_SetCheckedTrue() {
+ when(mAppOpsManager
+ .checkOpNoThrow(AppOpsManager.OP_RUN_IN_BACKGROUND, UID_NORMAL, LOW_SDK_PACKAGE))
+ .thenReturn(AppOpsManager.MODE_DEFAULT);
+
+ mController.updateState(mPreference);
+
+ verify(mPreference).setChecked(true);
+ }
+
+ @Test
+ public void testUpdateState_CheckOff_SetCheckedFalse() {
+ when(mAppOpsManager
+ .checkOpNoThrow(AppOpsManager.OP_RUN_IN_BACKGROUND, UID_NORMAL, LOW_SDK_PACKAGE))
+ .thenReturn(AppOpsManager.MODE_IGNORED);
+
+ mController.updateState(mPreference);
+
+ verify(mPreference).setChecked(false);
+ }
+
+ @Test
+ public void testIsPackageAvailable_SdkLowerThanO_ReturnTrue() {
+ assertThat(mController.isLegacyApp(LOW_SDK_PACKAGE)).isTrue();
+ }
+
+ @Test
+ public void testIsPackageAvailable_SdkLargerOrEqualThanO_ReturnFalse() {
+ assertThat(mController.isLegacyApp(HIGH_SDK_PACKAGE)).isFalse();
+ }
+
+ @Test
+ public void testMultiplePackages_ReturnStatusForTargetPackage() {
+ mController = new BackgroundActivityPreferenceController(mContext, UID_SPECIAL);
+ when(mAppOpsManager
+ .checkOpNoThrow(AppOpsManager.OP_RUN_IN_BACKGROUND, UID_SPECIAL, LOW_SDK_PACKAGE))
+ .thenReturn(AppOpsManager.MODE_DEFAULT);
+ when(mAppOpsManager
+ .checkOpNoThrow(AppOpsManager.OP_RUN_IN_BACKGROUND, UID_SPECIAL, HIGH_SDK_PACKAGE))
+ .thenReturn(AppOpsManager.MODE_IGNORED);
+
+ final boolean available = mController.isAvailable();
+ mController.updateState(mPreference);
+
+ assertThat(available).isTrue();
+ // Should get status from LOW_SDK_PACKAGE
+ verify(mPreference).setChecked(true);
+ }
+}
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