| /* |
| * Copyright (C) 2015 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 androidx.appcompat.app; |
| |
| import android.content.Intent; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.util.DisplayMetrics; |
| import android.view.KeyEvent; |
| import android.view.Menu; |
| import android.view.MenuInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.Window; |
| |
| import androidx.annotation.CallSuper; |
| import androidx.annotation.IdRes; |
| import androidx.annotation.LayoutRes; |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| import androidx.annotation.StyleRes; |
| import androidx.appcompat.view.ActionMode; |
| import androidx.appcompat.widget.Toolbar; |
| import androidx.appcompat.widget.VectorEnabledTintResources; |
| import androidx.core.app.ActivityCompat; |
| import androidx.core.app.NavUtils; |
| import androidx.core.app.TaskStackBuilder; |
| import androidx.fragment.app.FragmentActivity; |
| |
| /** |
| * Base class for activities that use the |
| * <a href="{@docRoot}tools/extras/support-library.html">support library</a> action bar features. |
| * |
| * <p>You can add an {@link androidx.appcompat.app.ActionBar} to your activity when running on API level 7 or higher |
| * by extending this class for your activity and setting the activity theme to |
| * {@link androidx.appcompat.R.style#Theme_AppCompat Theme.AppCompat} or a similar theme. |
| * |
| * <div class="special reference"> |
| * <h3>Developer Guides</h3> |
| * |
| * <p>For information about how to use the action bar, including how to add action items, navigation |
| * modes and more, read the <a href="{@docRoot}guide/topics/ui/actionbar.html">Action |
| * Bar</a> API guide.</p> |
| * </div> |
| */ |
| public class AppCompatActivity extends FragmentActivity implements AppCompatCallback, |
| TaskStackBuilder.SupportParentable, ActionBarDrawerToggle.DelegateProvider { |
| |
| private AppCompatDelegate mDelegate; |
| private int mThemeId = 0; |
| private Resources mResources; |
| |
| @Override |
| protected void onCreate(@Nullable Bundle savedInstanceState) { |
| final AppCompatDelegate delegate = getDelegate(); |
| delegate.installViewFactory(); |
| delegate.onCreate(savedInstanceState); |
| if (delegate.applyDayNight() && mThemeId != 0) { |
| // If DayNight has been applied, we need to re-apply the theme for |
| // the changes to take effect. On API 23+, we should bypass |
| // setTheme(), which will no-op if the theme ID is identical to the |
| // current theme ID. |
| if (Build.VERSION.SDK_INT >= 23) { |
| onApplyThemeResource(getTheme(), mThemeId, false); |
| } else { |
| setTheme(mThemeId); |
| } |
| } |
| super.onCreate(savedInstanceState); |
| } |
| |
| @Override |
| public void setTheme(@StyleRes final int resid) { |
| super.setTheme(resid); |
| // Keep hold of the theme id so that we can re-set it later if needed |
| mThemeId = resid; |
| } |
| |
| @Override |
| protected void onPostCreate(@Nullable Bundle savedInstanceState) { |
| super.onPostCreate(savedInstanceState); |
| getDelegate().onPostCreate(savedInstanceState); |
| } |
| |
| /** |
| * Support library version of {@link android.app.Activity#getActionBar}. |
| * |
| * <p>Retrieve a reference to this activity's ActionBar. |
| * |
| * @return The Activity's ActionBar, or null if it does not have one. |
| */ |
| @Nullable |
| public ActionBar getSupportActionBar() { |
| return getDelegate().getSupportActionBar(); |
| } |
| |
| /** |
| * Set a {@link android.widget.Toolbar Toolbar} to act as the |
| * {@link androidx.appcompat.app.ActionBar} for this Activity window. |
| * |
| * <p>When set to a non-null value the {@link #getActionBar()} method will return |
| * an {@link androidx.appcompat.app.ActionBar} object that can be used to control the given |
| * toolbar as if it were a traditional window decor action bar. The toolbar's menu will be |
| * populated with the Activity's options menu and the navigation button will be wired through |
| * the standard {@link android.R.id#home home} menu select action.</p> |
| * |
| * <p>In order to use a Toolbar within the Activity's window content the application |
| * must not request the window feature |
| * {@link android.view.Window#FEATURE_ACTION_BAR FEATURE_SUPPORT_ACTION_BAR}.</p> |
| * |
| * @param toolbar Toolbar to set as the Activity's action bar, or {@code null} to clear it |
| */ |
| public void setSupportActionBar(@Nullable Toolbar toolbar) { |
| getDelegate().setSupportActionBar(toolbar); |
| } |
| |
| @NonNull |
| @Override |
| public MenuInflater getMenuInflater() { |
| return getDelegate().getMenuInflater(); |
| } |
| |
| @Override |
| public void setContentView(@LayoutRes int layoutResID) { |
| getDelegate().setContentView(layoutResID); |
| } |
| |
| @Override |
| public void setContentView(View view) { |
| getDelegate().setContentView(view); |
| } |
| |
| @Override |
| public void setContentView(View view, ViewGroup.LayoutParams params) { |
| getDelegate().setContentView(view, params); |
| } |
| |
| @Override |
| public void addContentView(View view, ViewGroup.LayoutParams params) { |
| getDelegate().addContentView(view, params); |
| } |
| |
| @Override |
| public void onConfigurationChanged(@NonNull Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| getDelegate().onConfigurationChanged(newConfig); |
| if (mResources != null) { |
| // The real (and thus managed) resources object was already updated |
| // by ResourcesManager, so pull the current metrics from there. |
| final DisplayMetrics newMetrics = super.getResources().getDisplayMetrics(); |
| mResources.updateConfiguration(newConfig, newMetrics); |
| } |
| } |
| |
| @Override |
| protected void onPostResume() { |
| super.onPostResume(); |
| getDelegate().onPostResume(); |
| } |
| |
| @Override |
| protected void onStart() { |
| super.onStart(); |
| getDelegate().onStart(); |
| } |
| |
| @Override |
| protected void onStop() { |
| super.onStop(); |
| getDelegate().onStop(); |
| } |
| |
| @SuppressWarnings("TypeParameterUnusedInFormals") |
| @Override |
| public <T extends View> T findViewById(@IdRes int id) { |
| return getDelegate().findViewById(id); |
| } |
| |
| @Override |
| public final boolean onMenuItemSelected(int featureId, @NonNull android.view.MenuItem item) { |
| if (super.onMenuItemSelected(featureId, item)) { |
| return true; |
| } |
| |
| final ActionBar ab = getSupportActionBar(); |
| if (item.getItemId() == android.R.id.home && ab != null && |
| (ab.getDisplayOptions() & ActionBar.DISPLAY_HOME_AS_UP) != 0) { |
| return onSupportNavigateUp(); |
| } |
| return false; |
| } |
| |
| @Override |
| protected void onDestroy() { |
| super.onDestroy(); |
| getDelegate().onDestroy(); |
| } |
| |
| @Override |
| protected void onTitleChanged(CharSequence title, int color) { |
| super.onTitleChanged(title, color); |
| getDelegate().setTitle(title); |
| } |
| |
| /** |
| * Enable extended support library window features. |
| * <p> |
| * This is a convenience for calling |
| * {@link android.view.Window#requestFeature getWindow().requestFeature()}. |
| * </p> |
| * |
| * @param featureId The desired feature as defined in |
| * {@link android.view.Window} or {@link androidx.core.view.WindowCompat}. |
| * @return Returns true if the requested feature is supported and now enabled. |
| * |
| * @see android.app.Activity#requestWindowFeature |
| * @see android.view.Window#requestFeature |
| */ |
| public boolean supportRequestWindowFeature(int featureId) { |
| return getDelegate().requestWindowFeature(featureId); |
| } |
| |
| @Override |
| public void supportInvalidateOptionsMenu() { |
| getDelegate().invalidateOptionsMenu(); |
| } |
| |
| @Override |
| public void invalidateOptionsMenu() { |
| getDelegate().invalidateOptionsMenu(); |
| } |
| |
| /** |
| * Notifies the Activity that a support action mode has been started. |
| * Activity subclasses overriding this method should call the superclass implementation. |
| * |
| * @param mode The new action mode. |
| */ |
| @Override |
| @CallSuper |
| public void onSupportActionModeStarted(@NonNull ActionMode mode) { |
| } |
| |
| /** |
| * Notifies the activity that a support action mode has finished. |
| * Activity subclasses overriding this method should call the superclass implementation. |
| * |
| * @param mode The action mode that just finished. |
| */ |
| @Override |
| @CallSuper |
| public void onSupportActionModeFinished(@NonNull ActionMode mode) { |
| } |
| |
| /** |
| * Called when a support action mode is being started for this window. Gives the |
| * callback an opportunity to handle the action mode in its own unique and |
| * beautiful way. If this method returns null the system can choose a way |
| * to present the mode or choose not to start the mode at all. |
| * |
| * @param callback Callback to control the lifecycle of this action mode |
| * @return The ActionMode that was started, or null if the system should present it |
| */ |
| @Nullable |
| @Override |
| public ActionMode onWindowStartingSupportActionMode(@NonNull ActionMode.Callback callback) { |
| return null; |
| } |
| |
| /** |
| * Start an action mode. |
| * |
| * @param callback Callback that will manage lifecycle events for this context mode |
| * @return The ContextMode that was started, or null if it was canceled |
| */ |
| @Nullable |
| public ActionMode startSupportActionMode(@NonNull ActionMode.Callback callback) { |
| return getDelegate().startSupportActionMode(callback); |
| } |
| |
| /** |
| * @deprecated Progress bars are no longer provided in AppCompat. |
| */ |
| @Deprecated |
| public void setSupportProgressBarVisibility(boolean visible) { |
| } |
| |
| /** |
| * @deprecated Progress bars are no longer provided in AppCompat. |
| */ |
| @Deprecated |
| public void setSupportProgressBarIndeterminateVisibility(boolean visible) { |
| } |
| |
| /** |
| * @deprecated Progress bars are no longer provided in AppCompat. |
| */ |
| @Deprecated |
| public void setSupportProgressBarIndeterminate(boolean indeterminate) { |
| } |
| |
| /** |
| * @deprecated Progress bars are no longer provided in AppCompat. |
| */ |
| @Deprecated |
| public void setSupportProgress(int progress) { |
| } |
| |
| /** |
| * Support version of {@link #onCreateNavigateUpTaskStack(android.app.TaskStackBuilder)}. |
| * This method will be called on all platform versions. |
| * |
| * Define the synthetic task stack that will be generated during Up navigation from |
| * a different task. |
| * |
| * <p>The default implementation of this method adds the parent chain of this activity |
| * as specified in the manifest to the supplied {@link androidx.core.app.TaskStackBuilder}. Applications |
| * may choose to override this method to construct the desired task stack in a different |
| * way.</p> |
| * |
| * <p>This method will be invoked by the default implementation of {@link #onNavigateUp()} |
| * if {@link #shouldUpRecreateTask(android.content.Intent)} returns true when supplied with the intent |
| * returned by {@link #getParentActivityIntent()}.</p> |
| * |
| * <p>Applications that wish to supply extra Intent parameters to the parent stack defined |
| * by the manifest should override |
| * {@link #onPrepareSupportNavigateUpTaskStack(androidx.core.app.TaskStackBuilder)}.</p> |
| * |
| * @param builder An empty TaskStackBuilder - the application should add intents representing |
| * the desired task stack |
| */ |
| public void onCreateSupportNavigateUpTaskStack(@NonNull TaskStackBuilder builder) { |
| builder.addParentStack(this); |
| } |
| |
| /** |
| * Support version of {@link #onPrepareNavigateUpTaskStack(android.app.TaskStackBuilder)}. |
| * This method will be called on all platform versions. |
| * |
| * Prepare the synthetic task stack that will be generated during Up navigation |
| * from a different task. |
| * |
| * <p>This method receives the {@link androidx.core.app.TaskStackBuilder} with the constructed series of |
| * Intents as generated by {@link #onCreateSupportNavigateUpTaskStack(androidx.core.app.TaskStackBuilder)}. |
| * If any extra data should be added to these intents before launching the new task, |
| * the application should override this method and add that data here.</p> |
| * |
| * @param builder A TaskStackBuilder that has been populated with Intents by |
| * onCreateNavigateUpTaskStack. |
| */ |
| public void onPrepareSupportNavigateUpTaskStack(@NonNull TaskStackBuilder builder) { |
| } |
| |
| /** |
| * This method is called whenever the user chooses to navigate Up within your application's |
| * activity hierarchy from the action bar. |
| * |
| * <p>If a parent was specified in the manifest for this activity or an activity-alias to it, |
| * default Up navigation will be handled automatically. See |
| * {@link #getSupportParentActivityIntent()} for how to specify the parent. If any activity |
| * along the parent chain requires extra Intent arguments, the Activity subclass |
| * should override the method {@link #onPrepareSupportNavigateUpTaskStack(androidx.core.app.TaskStackBuilder)} |
| * to supply those arguments.</p> |
| * |
| * <p>See <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and |
| * Back Stack</a> from the developer guide and |
| * <a href="{@docRoot}design/patterns/navigation.html">Navigation</a> from the design guide |
| * for more information about navigating within your app.</p> |
| * |
| * <p>See the {@link androidx.core.app.TaskStackBuilder} class and the Activity methods |
| * {@link #getSupportParentActivityIntent()}, {@link #supportShouldUpRecreateTask(android.content.Intent)}, and |
| * {@link #supportNavigateUpTo(android.content.Intent)} for help implementing custom Up navigation.</p> |
| * |
| * @return true if Up navigation completed successfully and this Activity was finished, |
| * false otherwise. |
| */ |
| public boolean onSupportNavigateUp() { |
| Intent upIntent = getSupportParentActivityIntent(); |
| |
| if (upIntent != null) { |
| if (supportShouldUpRecreateTask(upIntent)) { |
| TaskStackBuilder b = TaskStackBuilder.create(this); |
| onCreateSupportNavigateUpTaskStack(b); |
| onPrepareSupportNavigateUpTaskStack(b); |
| b.startActivities(); |
| |
| try { |
| ActivityCompat.finishAffinity(this); |
| } catch (IllegalStateException e) { |
| // This can only happen on 4.1+, when we don't have a parent or a result set. |
| // In that case we should just finish(). |
| finish(); |
| } |
| } else { |
| // This activity is part of the application's task, so simply |
| // navigate up to the hierarchical parent activity. |
| supportNavigateUpTo(upIntent); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Obtain an {@link android.content.Intent} that will launch an explicit target activity |
| * specified by sourceActivity's {@link androidx.core.app.NavUtils#PARENT_ACTIVITY} <meta-data> |
| * element in the application's manifest. If the device is running |
| * Jellybean or newer, the android:parentActivityName attribute will be preferred |
| * if it is present. |
| * |
| * @return a new Intent targeting the defined parent activity of sourceActivity |
| */ |
| @Nullable |
| @Override |
| public Intent getSupportParentActivityIntent() { |
| return NavUtils.getParentActivityIntent(this); |
| } |
| |
| /** |
| * Returns true if sourceActivity should recreate the task when navigating 'up' |
| * by using targetIntent. |
| * |
| * <p>If this method returns false the app can trivially call |
| * {@link #supportNavigateUpTo(android.content.Intent)} using the same parameters to correctly perform |
| * up navigation. If this method returns false, the app should synthesize a new task stack |
| * by using {@link androidx.core.app.TaskStackBuilder} or another similar mechanism to perform up navigation.</p> |
| * |
| * @param targetIntent An intent representing the target destination for up navigation |
| * @return true if navigating up should recreate a new task stack, false if the same task |
| * should be used for the destination |
| */ |
| public boolean supportShouldUpRecreateTask(@NonNull Intent targetIntent) { |
| return NavUtils.shouldUpRecreateTask(this, targetIntent); |
| } |
| |
| /** |
| * Navigate from sourceActivity to the activity specified by upIntent, finishing sourceActivity |
| * in the process. upIntent will have the flag {@link android.content.Intent#FLAG_ACTIVITY_CLEAR_TOP} set |
| * by this method, along with any others required for proper up navigation as outlined |
| * in the Android Design Guide. |
| * |
| * <p>This method should be used when performing up navigation from within the same task |
| * as the destination. If up navigation should cross tasks in some cases, see |
| * {@link #supportShouldUpRecreateTask(android.content.Intent)}.</p> |
| * |
| * @param upIntent An intent representing the target destination for up navigation |
| */ |
| public void supportNavigateUpTo(@NonNull Intent upIntent) { |
| NavUtils.navigateUpTo(this, upIntent); |
| } |
| |
| @Override |
| public void onContentChanged() { |
| // Call onSupportContentChanged() for legacy reasons |
| onSupportContentChanged(); |
| } |
| |
| /** |
| * @deprecated Use {@link #onContentChanged()} instead. |
| */ |
| @Deprecated |
| public void onSupportContentChanged() { |
| } |
| |
| @Nullable |
| @Override |
| public ActionBarDrawerToggle.Delegate getDrawerToggleDelegate() { |
| return getDelegate().getDrawerToggleDelegate(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * <p>Please note: AppCompat uses its own feature id for the action bar: |
| * {@link AppCompatDelegate#FEATURE_SUPPORT_ACTION_BAR FEATURE_SUPPORT_ACTION_BAR}.</p> |
| */ |
| @Override |
| public boolean onMenuOpened(int featureId, Menu menu) { |
| return super.onMenuOpened(featureId, menu); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * <p>Please note: AppCompat uses its own feature id for the action bar: |
| * {@link AppCompatDelegate#FEATURE_SUPPORT_ACTION_BAR FEATURE_SUPPORT_ACTION_BAR}.</p> |
| */ |
| @Override |
| public void onPanelClosed(int featureId, @NonNull Menu menu) { |
| super.onPanelClosed(featureId, menu); |
| } |
| |
| @Override |
| protected void onSaveInstanceState(@NonNull Bundle outState) { |
| super.onSaveInstanceState(outState); |
| getDelegate().onSaveInstanceState(outState); |
| } |
| |
| /** |
| * @return The {@link AppCompatDelegate} being used by this Activity. |
| */ |
| @NonNull |
| public AppCompatDelegate getDelegate() { |
| if (mDelegate == null) { |
| mDelegate = AppCompatDelegate.create(this, this); |
| } |
| return mDelegate; |
| } |
| |
| @Override |
| public boolean dispatchKeyEvent(KeyEvent event) { |
| // Let support action bars open menus in response to the menu key prioritized over |
| // the window handling it |
| final int keyCode = event.getKeyCode(); |
| final ActionBar actionBar = getSupportActionBar(); |
| if (keyCode == KeyEvent.KEYCODE_MENU |
| && actionBar != null && actionBar.onMenuKeyEvent(event)) { |
| return true; |
| } |
| return super.dispatchKeyEvent(event); |
| } |
| |
| @Override |
| public Resources getResources() { |
| if (mResources == null && VectorEnabledTintResources.shouldBeUsed()) { |
| mResources = new VectorEnabledTintResources(this, super.getResources()); |
| } |
| return mResources == null ? super.getResources() : mResources; |
| } |
| |
| /** |
| * KeyEvents with non-default modifiers are not dispatched to menu's performShortcut in API 25 |
| * or lower. Here, we check if the keypress corresponds to a menuitem's shortcut combination |
| * and perform the corresponding action. |
| */ |
| private boolean performMenuItemShortcut(int keycode, KeyEvent event) { |
| if (!(Build.VERSION.SDK_INT >= 26) && !event.isCtrlPressed() |
| && !KeyEvent.metaStateHasNoModifiers(event.getMetaState()) |
| && event.getRepeatCount() == 0 |
| && !KeyEvent.isModifierKey(event.getKeyCode())) { |
| final Window currentWindow = getWindow(); |
| if (currentWindow != null && currentWindow.getDecorView() != null) { |
| final View decorView = currentWindow.getDecorView(); |
| if (decorView.dispatchKeyShortcutEvent(event)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| if (performMenuItemShortcut(keyCode, event)) { |
| return true; |
| } |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| @Override |
| public void openOptionsMenu() { |
| ActionBar actionBar = getSupportActionBar(); |
| if (getWindow().hasFeature(Window.FEATURE_OPTIONS_PANEL) |
| && (actionBar == null || !actionBar.openOptionsMenu())) { |
| super.openOptionsMenu(); |
| } |
| } |
| |
| @Override |
| public void closeOptionsMenu() { |
| ActionBar actionBar = getSupportActionBar(); |
| if (getWindow().hasFeature(Window.FEATURE_OPTIONS_PANEL) |
| && (actionBar == null || !actionBar.closeOptionsMenu())) { |
| super.closeOptionsMenu(); |
| } |
| } |
| } |