| /* |
| * Copyright (C) 2020 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.car.ui.core; |
| |
| import static com.android.car.ui.core.CarUi.getBaseLayoutController; |
| |
| import android.app.Activity; |
| import android.app.Application; |
| import android.content.ContentProvider; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.util.Log; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| |
| import com.android.car.ui.baselayout.Insets; |
| |
| import java.lang.reflect.Method; |
| import java.util.Locale; |
| |
| /** |
| * {@link ContentProvider ContentProvider's} onCreate() methods are "called for all registered |
| * content providers on the application main thread at application launch time." This means we |
| * can use a content provider to register for Activity lifecycle callbacks before any activities |
| * have started, for installing the CarUi base layout into all activities. |
| */ |
| public class CarUiInstaller extends ContentProvider { |
| |
| private static final String TAG = "CarUiInstaller"; |
| private static final String CAR_UI_INSET_LEFT = "CAR_UI_INSET_LEFT"; |
| private static final String CAR_UI_INSET_RIGHT = "CAR_UI_INSET_RIGHT"; |
| private static final String CAR_UI_INSET_TOP = "CAR_UI_INSET_TOP"; |
| private static final String CAR_UI_INSET_BOTTOM = "CAR_UI_INSET_BOTTOM"; |
| |
| private static final boolean IS_DEBUG_DEVICE = |
| Build.TYPE.toLowerCase(Locale.ROOT).contains("debug") |
| || Build.TYPE.toLowerCase(Locale.ROOT).equals("eng"); |
| |
| @Override |
| public boolean onCreate() { |
| Context context = getContext(); |
| if (context == null) { |
| Log.e(TAG, "CarUiInstaller had a null context!"); |
| return false; |
| } |
| Log.i(TAG, "CarUiInstaller started for " + context.getPackageName()); |
| |
| Application application = (Application) context.getApplicationContext(); |
| application.registerActivityLifecycleCallbacks( |
| new Application.ActivityLifecycleCallbacks() { |
| private Insets mInsets = null; |
| private boolean mIsActivityStartedForFirstTime = false; |
| |
| @Override |
| public void onActivityCreated(Activity activity, Bundle savedInstanceState) { |
| if (activity.getClassLoader() |
| .equals(CarUiInstaller.class.getClassLoader())) { |
| BaseLayoutController.build(activity); |
| } else { |
| callBaseLayoutControllerMethod("build", activity); |
| } |
| |
| if (savedInstanceState != null) { |
| int inset_left = savedInstanceState.getInt(CAR_UI_INSET_LEFT); |
| int inset_top = savedInstanceState.getInt(CAR_UI_INSET_TOP); |
| int inset_right = savedInstanceState.getInt(CAR_UI_INSET_RIGHT); |
| int inset_bottom = savedInstanceState.getInt(CAR_UI_INSET_BOTTOM); |
| mInsets = new Insets(inset_left, inset_top, inset_right, inset_bottom); |
| } |
| |
| mIsActivityStartedForFirstTime = true; |
| } |
| |
| @Override |
| public void onActivityPostStarted(Activity activity) { |
| BaseLayoutController controller = getBaseLayoutController(activity); |
| if (mInsets != null && controller != null |
| && mIsActivityStartedForFirstTime) { |
| controller.dispatchNewInsets(mInsets); |
| mIsActivityStartedForFirstTime = false; |
| } |
| } |
| |
| @Override |
| public void onActivityStarted(Activity activity) { |
| } |
| |
| @Override |
| public void onActivityResumed(Activity activity) { |
| } |
| |
| @Override |
| public void onActivityPaused(Activity activity) { |
| } |
| |
| @Override |
| public void onActivityStopped(Activity activity) { |
| } |
| |
| @Override |
| public void onActivitySaveInstanceState(Activity activity, Bundle outState) { |
| BaseLayoutController controller = getBaseLayoutController(activity); |
| if (controller != null) { |
| Insets insets = controller.getInsets(); |
| outState.putInt(CAR_UI_INSET_LEFT, insets.getLeft()); |
| outState.putInt(CAR_UI_INSET_TOP, insets.getTop()); |
| outState.putInt(CAR_UI_INSET_RIGHT, insets.getRight()); |
| outState.putInt(CAR_UI_INSET_BOTTOM, insets.getBottom()); |
| } |
| } |
| |
| @Override |
| public void onActivityDestroyed(Activity activity) { |
| if (activity.getClassLoader() |
| .equals(CarUiInstaller.class.getClassLoader())) { |
| BaseLayoutController.destroy(activity); |
| } else { |
| callBaseLayoutControllerMethod("destroy", activity); |
| } |
| } |
| }); |
| |
| // Check only if we are in debug mode. |
| if (IS_DEBUG_DEVICE) { |
| CheckCarUiComponents checkCarUiComponents = new CheckCarUiComponents(application); |
| application.registerActivityLifecycleCallbacks(checkCarUiComponents); |
| } |
| |
| return true; |
| } |
| |
| @Nullable |
| @Override |
| public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, |
| @Nullable String[] selectionArgs, @Nullable String sortOrder) { |
| return null; |
| } |
| |
| @Nullable |
| @Override |
| public String getType(@NonNull Uri uri) { |
| return null; |
| } |
| |
| @Nullable |
| @Override |
| public Uri insert(@NonNull Uri uri, @Nullable ContentValues values) { |
| return null; |
| } |
| |
| @Override |
| public int delete(@NonNull Uri uri, @Nullable String selection, |
| @Nullable String[] selectionArgs) { |
| return 0; |
| } |
| |
| @Override |
| public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, |
| @Nullable String[] selectionArgs) { |
| return 0; |
| } |
| |
| private static void callBaseLayoutControllerMethod(String methodName, Activity activity) { |
| // Note: (b/156532465) |
| // The usage of the alternate classloader is to accommodate GMSCore. |
| // Some activities are loaded dynamically from external modules. |
| try { |
| Class baseLayoutControllerClass = |
| activity.getClassLoader() |
| .loadClass(BaseLayoutController.class.getName()); |
| Method method = baseLayoutControllerClass |
| .getDeclaredMethod(methodName, Activity.class); |
| method.invoke(null, activity); |
| } catch (ReflectiveOperationException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |