CTS之Keyguard Menu事件處理

事件觸發點:
NotificationShadeWindowViewController.dispatchKeyEvent
設置setInteractionEventHandler回調之后通過NotificationShadeWindowView 觸發
調用到return mService.onMenuPressed();

public class NotificationShadeWindowViewController {public void setupExpandedStatusBar() {mView.setInteractionEventHandler(new NotificationShadeWindowView.InteractionEventHandler() {//省略代碼@Overridepublic boolean dispatchKeyEvent(KeyEvent event) {boolean down = event.getAction() == KeyEvent.ACTION_DOWN;switch (event.getKeyCode()) {case KeyEvent.KEYCODE_BACK:if (!down) {mService.onBackPressed();}return true;case KeyEvent.KEYCODE_MENU:if (!down) {return mService.onMenuPressed();//☆☆☆☆}break;case KeyEvent.KEYCODE_SPACE:if (!down) {return mService.onSpacePressed();}break;case KeyEvent.KEYCODE_VOLUME_DOWN:case KeyEvent.KEYCODE_VOLUME_UP:if (mStatusBarStateController.isDozing()) {MediaSessionLegacyHelper.getHelper(mView.getContext()).sendVolumeKeyEvent(event, AudioManager.USE_DEFAULT_STREAM_TYPE, true);return true;}break;}return false;}});}
}public class NotificationShadeWindowView extends FrameLayout {@Overridepublic boolean dispatchKeyEvent(KeyEvent event) {if (mInteractionEventHandler.interceptMediaKey(event)) {return true;}if (super.dispatchKeyEvent(event)) {return true;}return mInteractionEventHandler.dispatchKeyEvent(event);//☆☆☆☆}
}

以上通過接口會調用到
StatusBar類中去

public class StatusBar{public boolean onMenuPressed() {if (shouldUnlockOnMenuPressed()) {mShadeController.animateCollapsePanels(CommandQueue.FLAG_EXCLUDE_RECENTS_PANEL /* flags */, true /* force */);//☆☆☆☆return true;}return false;}}public class ShadeControllerImpl implements ShadeController {@Overridepublic void animateCollapsePanels(int flags, boolean force) {animateCollapsePanels(flags, force, false /* delayed */, 1.0f /* speedUpFactor */);//☆☆☆☆}@Overridepublic void animateCollapsePanels(int flags, boolean force, boolean delayed,float speedUpFactor) {if (!force && mStatusBarStateController.getState() != StatusBarState.SHADE) {runPostCollapseRunnables();return;}if (SPEW) {Log.d(TAG, "animateCollapse():"+ " mExpandedVisible=" + getStatusBar().isExpandedVisible()+ " flags=" + flags);}if ((flags & CommandQueue.FLAG_EXCLUDE_RECENTS_PANEL) == 0) {getStatusBar().postHideRecentApps();}// TODO(b/62444020): remove when this bug is fixedLog.v(TAG, "NotificationShadeWindow: " + getNotificationShadeWindowView()+ " canPanelBeCollapsed(): "+ getNotificationPanelViewController().canPanelBeCollapsed());if (getNotificationShadeWindowView() != null&& getNotificationPanelViewController().canPanelBeCollapsed()) {// release focus immediately to kick off focus change transitionmNotificationShadeWindowController.setNotificationShadeFocusable(false);getStatusBar().getNotificationShadeWindowViewController().cancelExpandHelper();getStatusBarView().collapsePanel(true /* animate */, delayed, speedUpFactor);//☆☆☆☆} else {mBubbleControllerLazy.get().collapseStack();}}}public abstract class PanelBar extends FrameLayout {public void collapsePanel(boolean animate, boolean delayed, float speedUpFactor) {boolean waiting = false;PanelViewController pv = mPanel;if (animate && !pv.isFullyCollapsed()) {pv.collapse(delayed, speedUpFactor);waiting = true;} else {pv.resetViews(false /* animate */);pv.setExpandedFraction(0); // just in casepv.cancelPeek();}if (DEBUG) LOG("collapsePanel: animate=%s waiting=%s", animate, waiting);if (!waiting && mState != STATE_CLOSED) {// it's possible that nothing animated, so we replicate the termination// conditions of panelExpansionChanged herego(STATE_CLOSED);onPanelCollapsed();//☆☆☆☆}}
}public class PhoneStatusBarView extends PanelBar {private Runnable mHideExpandedRunnable = new Runnable() {@Overridepublic void run() {if (mPanelFraction == 0.0f) {mBar.makeExpandedInvisible();//☆☆☆☆}}};@Overridepublic void onPanelCollapsed() {super.onPanelCollapsed();// Close the status bar in the next frame so we can show the end of the animation.post(mHideExpandedRunnable);//☆☆☆☆mIsFullyOpenedPanel = false;}
}public class StatusBar extends SystemUI {void makeExpandedInvisible() {if (SPEW) Log.d(TAG, "makeExpandedInvisible: mExpandedVisible=" + mExpandedVisible+ " mExpandedVisible=" + mExpandedVisible);if (!mExpandedVisible || mNotificationShadeWindowView == null) {return;}// Ensure the panel is fully collapsed (just in case; bug 6765842, 7260868)mStatusBarView.collapsePanel(/*animate=*/ false, false /* delayed*/,1.0f /* speedUpFactor */);mNotificationPanelViewController.closeQs();mExpandedVisible = false;visibilityChanged(false);// Update the visibility of notification shade and status bar window.mNotificationShadeWindowController.setPanelVisible(false);mStatusBarWindowController.setForceStatusBarVisible(false);// Close any guts that might be visiblemGutsManager.closeAndSaveGuts(true /* removeLeavebehind */, true /* force */,true /* removeControls */, -1 /* x */, -1 /* y */, true /* resetMenu */);mShadeController.runPostCollapseRunnables();setInteracting(StatusBarManager.WINDOW_STATUS_BAR, false);if (!mNotificationActivityStarter.isCollapsingToShowActivityOverLockscreen()) {showBouncerIfKeyguard();//☆☆☆☆} else if (DEBUG) {Log.d(TAG, "Not showing bouncer due to activity showing over lockscreen");}mCommandQueue.recomputeDisableFlags(mDisplayId,mNotificationPanelViewController.hideStatusBarIconsWhenExpanded() /* animate */);// Trimming will happen later if Keyguard is showing - doing it here might cause a jank in// the bouncer appear animation.if (!mStatusBarKeyguardViewManager.isShowing()) {WindowManagerGlobal.getInstance().trimMemory(ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN);}}private void showBouncerIfKeyguard() {if ((mState == StatusBarState.KEYGUARD || mState == StatusBarState.SHADE_LOCKED)&& !mKeyguardViewMediator.isHiding()) {mStatusBarKeyguardViewManager.showBouncer(true /* scrimmed */); //☆☆☆☆}}}public class StatusBarKeyguardViewManager {public void showBouncer(boolean scrimmed) {if (mShowing && !mBouncer.isShowing()) {mBouncer.show(false /* resetSecuritySelection */, scrimmed);//☆☆☆☆}updateStates();}
}public class KeyguardBouncer {private final Runnable mShowRunnable = new Runnable() {@Overridepublic void run() {mRoot.setVisibility(View.VISIBLE);showPromptReason(mBouncerPromptReason);final CharSequence customMessage = mCallback.consumeCustomMessage();if (customMessage != null) {mKeyguardView.showErrorMessage(customMessage);}// We might still be collapsed and the view didn't have time to layout yet or still// be small, let's wait on the predraw to do the animation in that case.if (mKeyguardView.getHeight() != 0 && mKeyguardView.getHeight() != mStatusBarHeight) {mKeyguardView.startAppearAnimation();} else {mKeyguardView.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {@Overridepublic boolean onPreDraw() {mKeyguardView.getViewTreeObserver().removeOnPreDrawListener(this);mKeyguardView.startAppearAnimation();//☆☆☆☆return true;}});mKeyguardView.requestLayout();}mShowingSoon = false;if (mExpansion == EXPANSION_VISIBLE) {mKeyguardView.onResume();mKeyguardView.resetSecurityContainer();showPromptReason(mBouncerPromptReason);}SysUiStatsLog.write(SysUiStatsLog.KEYGUARD_BOUNCER_STATE_CHANGED,SysUiStatsLog.KEYGUARD_BOUNCER_STATE_CHANGED__STATE__SHOWN);}};public void show(boolean resetSecuritySelection, boolean isScrimmed) {final int keyguardUserId = KeyguardUpdateMonitor.getCurrentUser();if (keyguardUserId == UserHandle.USER_SYSTEM && UserManager.isSplitSystemUser()) {// In split system user mode, we never unlock system user.return;}ensureView();mIsScrimmed = isScrimmed;// On the keyguard, we want to show the bouncer when the user drags up, but it's// not correct to end the falsing session. We still need to verify if those touches// are valid.// Later, at the end of the animation, when the bouncer is at the top of the screen,// onFullyShown() will be called and FalsingManager will stop recording touches.if (isScrimmed) {setExpansion(EXPANSION_VISIBLE);}if (resetSecuritySelection) {// showPrimarySecurityScreen() updates the current security method. This is needed in// case we are already showing and the current security method changed.showPrimarySecurityScreen();}if (mRoot.getVisibility() == View.VISIBLE || mShowingSoon) {return;}final int activeUserId = KeyguardUpdateMonitor.getCurrentUser();final boolean isSystemUser =UserManager.isSplitSystemUser() && activeUserId == UserHandle.USER_SYSTEM;final boolean allowDismissKeyguard = !isSystemUser && activeUserId == keyguardUserId;// If allowed, try to dismiss the Keyguard. If no security auth (password/pin/pattern) is// set, this will dismiss the whole Keyguard. Otherwise, show the bouncer.if (allowDismissKeyguard && mKeyguardView.dismiss(activeUserId)) {return;}// This condition may indicate an error on Android, so log it.if (!allowDismissKeyguard) {Log.w(TAG, "User can't dismiss keyguard: " + activeUserId + " != " + keyguardUserId);}mShowingSoon = true;// Split up the work over multiple frames.DejankUtils.removeCallbacks(mResetRunnable);if (mKeyguardStateController.isFaceAuthEnabled() && !needsFullscreenBouncer()&& !mKeyguardUpdateMonitor.userNeedsStrongAuth()&& !mKeyguardBypassController.getBypassEnabled()) {mHandler.postDelayed(mShowRunnable, BOUNCER_FACE_DELAY);//☆☆☆☆} else {DejankUtils.postAfterTraversal(mShowRunnable);//☆☆☆☆}mCallback.onBouncerVisiblityChanged(true /* shown */);mExpansionCallback.onStartingToShow();}
}public class KeyguardHostView extends FrameLayout implements SecurityCallback {public void startAppearAnimation() {mSecurityContainer.startAppearAnimation();//☆☆☆☆}
}public class KeyguardSecurityContainer extends FrameLayout implements KeyguardSecurityView {public void startAppearAnimation() {if (mCurrentSecuritySelection != SecurityMode.None) {getSecurityView(mCurrentSecuritySelection).startAppearAnimation();//☆☆☆☆}}
}public class KeyguardPINView extends KeyguardPinBasedInputView {@Overridepublic void startAppearAnimation() {enableClipping(false);setAlpha(1f);//☆☆☆☆setTranslationY(mAppearAnimationUtils.getStartTranslation());AppearAnimationUtils.startTranslationYAnimation(this, 0 /* delay */, 500 /* duration */,0, mAppearAnimationUtils.getInterpolator());mAppearAnimationUtils.startAnimation2d(mViews,new Runnable() {@Overridepublic void run() {enableClipping(true);}});}}