本类实现一个以高度为标准的正方形TextView组件，如果想以其他标准（最大或者最小宽度、高度）需要再进行修改 […]
8月 012020
8月 012020
使用如下代码：
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tvMyAccount.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { @Override public void onGlobalLayout() { tvMyAccount.setWidth(tvMyAccount.getHeight()); } }); |
本来是想实现tvMyAcco […]
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本文基于Android8.1系统进行测试 一、四种LaunchMode 1. standard 默认方式，每次 […]
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本文基于Android8.1系统进行研究 一、启动zygote 在Linux内核启动完成后，首先启动系统的第一 […]
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解决办法： 打开build.gradle文件，增加如下maven仓库地址： 文字版： [crayon-5f28 […]
6月 032020
基于Android8.1系统源码中的注释翻译 翻译如下： 在一个Activity被杀死之前被调用以取出Ac […]
6月 012020
本文 基于Android8.1系统
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protected void makeStatusBarView() { final Context context = mContext; // 用于重新获取mDisplayMetrics和mCurrentDisplaySize updateDisplaySize(); // populates mDisplayMetrics // 重新加载QSPanel、NotificationPanel等的资源，因为可能configuration可能会有变化 updateResources(); updateTheme(); // 用布局R.layout.super_status_bar填充mStatusBarWindow inflateStatusBarWindow(context); mStatusBarWindow.setService(this); mStatusBarWindow.setOnTouchListener(getStatusBarWindowTouchListener()); // mNotificationPanel用于显示各种各种通知的根Panel // TODO: Deal with the ugliness that comes from having some of the statusbar broken out // into fragments, but the rest here, it leaves some awkward lifecycle and whatnot. mNotificationPanel = (NotificationPanelView) mStatusBarWindow.findViewById( R.id.notification_panel); // mStackScroller用于显示列表形式的系统通知 mStackScroller = (NotificationStackScrollLayout) mStatusBarWindow.findViewById( R.id.notification_stack_scroller); mNotificationPanel.setStatusBar(this); mNotificationPanel.setGroupManager(mGroupManager); mAboveShelfObserver = new AboveShelfObserver(mStackScroller); mAboveShelfObserver.setListener(mStatusBarWindow.findViewById( R.id.notification_container_parent)); mKeyguardStatusBar = (KeyguardStatusBarView) mStatusBarWindow.findViewById(R.id.keyguard_header); mNotificationIconAreaController = SystemUIFactory.getInstance() .createNotificationIconAreaController(context, this); inflateShelf(); mNotificationIconAreaController.setupShelf(mNotificationShelf); Dependency.get(DarkIconDispatcher.class).addDarkReceiver(mNotificationIconAreaController); FragmentHostManager.get(mStatusBarWindow) .addTagListener(CollapsedStatusBarFragment.TAG, (tag, fragment) -> { CollapsedStatusBarFragment statusBarFragment = (CollapsedStatusBarFragment) fragment; statusBarFragment.initNotificationIconArea(mNotificationIconAreaController); mStatusBarView = (PhoneStatusBarView) fragment.getView(); mStatusBarView.setBar(this); mStatusBarView.setPanel(mNotificationPanel); mStatusBarView.setScrimController(mScrimController); mStatusBarView.setBouncerShowing(mBouncerShowing); setAreThereNotifications(); checkBarModes(); }).getFragmentManager() .beginTransaction() .replace(R.id.status_bar_container, new CollapsedStatusBarFragment(), CollapsedStatusBarFragment.TAG) .commit(); mIconController = Dependency.get(StatusBarIconController.class); mHeadsUpManager = new HeadsUpManager(context, mStatusBarWindow, mGroupManager); mHeadsUpManager.setBar(this); mHeadsUpManager.addListener(this); mHeadsUpManager.addListener(mNotificationPanel); mHeadsUpManager.addListener(mGroupManager); mHeadsUpManager.addListener(mVisualStabilityManager); mNotificationPanel.setHeadsUpManager(mHeadsUpManager); mNotificationData.setHeadsUpManager(mHeadsUpManager); mGroupManager.setHeadsUpManager(mHeadsUpManager); mHeadsUpManager.setVisualStabilityManager(mVisualStabilityManager); if (MULTIUSER_DEBUG) { mNotificationPanelDebugText = (TextView) mNotificationPanel.findViewById( R.id.header_debug_info); mNotificationPanelDebugText.setVisibility(View.VISIBLE); } try { boolean showNav = mWindowManagerService.hasNavigationBar(); if (DEBUG) Log.v(TAG, "hasNavigationBar=" + showNav); if (showNav) { createNavigationBar(); } } catch (RemoteException ex) { // no window manager? good luck with that } // figure out which pixel-format to use for the status bar. mPixelFormat = PixelFormat.OPAQUE; mStackScroller.setLongPressListener(getNotificationLongClicker()); mStackScroller.setStatusBar(this); mStackScroller.setGroupManager(mGroupManager); mStackScroller.setHeadsUpManager(mHeadsUpManager); mGroupManager.setOnGroupChangeListener(mStackScroller); mVisualStabilityManager.setVisibilityLocationProvider(mStackScroller); // 没有通知提示框 inflateEmptyShadeView(); // 清除所有通知提示框 inflateDismissView(); mExpandedContents = mStackScroller; // 包含多媒体插图、图片的View？不知道是干啥用的 mBackdrop = (BackDropView) mStatusBarWindow.findViewById(R.id.backdrop); mBackdropFront = (ImageView) mBackdrop.findViewById(R.id.backdrop_front); mBackdropBack = (ImageView) mBackdrop.findViewById(R.id.backdrop_back); // 字面翻译：锁屏壁纸 if (ENABLE_LOCKSCREEN_WALLPAPER) { mLockscreenWallpaper = new LockscreenWallpaper(mContext, this, mHandler); } mKeyguardIndicationController = SystemUIFactory.getInstance().createKeyguardIndicationController(mContext, (ViewGroup) mStatusBarWindow.findViewById(R.id.keyguard_indication_area), mNotificationPanel.getLockIcon()); mNotificationPanel.setKeyguardIndicationController(mKeyguardIndicationController); mAmbientIndicationContainer = mStatusBarWindow.findViewById( R.id.ambient_indication_container); // set the initial view visibility setAreThereNotifications(); // TODO: Find better place for this callback. mBatteryController.addCallback(new BatteryStateChangeCallback() { @Override public void onPowerSaveChanged(boolean isPowerSave) { mHandler.post(mCheckBarModes); if (mDozeServiceHost != null) { mDozeServiceHost.firePowerSaveChanged(isPowerSave); } } @Override public void onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging) { // noop } }); mLightBarController = Dependency.get(LightBarController.class); if (mNavigationBar != null) { mNavigationBar.setLightBarController(mLightBarController); } ScrimView scrimBehind = (ScrimView) mStatusBarWindow.findViewById(R.id.scrim_behind); ScrimView scrimInFront = (ScrimView) mStatusBarWindow.findViewById(R.id.scrim_in_front); View headsUpScrim = mStatusBarWindow.findViewById(R.id.heads_up_scrim); mScrimController = SystemUIFactory.getInstance().createScrimController(mLightBarController, scrimBehind, scrimInFront, headsUpScrim, mLockscreenWallpaper, scrimsVisible -> { if (mStatusBarWindowManager != null) { mStatusBarWindowManager.setScrimsVisible(scrimsVisible); } }); if (mScrimSrcModeEnabled) { Runnable runnable = new Runnable() { @Override public void run() { boolean asSrc = mBackdrop.getVisibility() != View.VISIBLE; mScrimController.setDrawBehindAsSrc(asSrc); mStackScroller.setDrawBackgroundAsSrc(asSrc); } }; mBackdrop.setOnVisibilityChangedRunnable(runnable); runnable.run(); } mHeadsUpManager.addListener(mScrimController); mStackScroller.setScrimController(mScrimController); mDozeScrimController = new DozeScrimController(mScrimController, context); // Other icons mVolumeComponent = getComponent(VolumeComponent.class); mNotificationPanel.setUserSetupComplete(mUserSetup); if (UserManager.get(mContext).isUserSwitcherEnabled()) { createUserSwitcher(); } // 配置快速设置小按钮的面板 View container = mStatusBarWindow.findViewById(R.id.qs_frame); if (container != null) { FragmentHostManager fragmentHostManager = FragmentHostManager.get(container); ExtensionFragmentListener.attachExtensonToFragment(container, QS.TAG, R.id.qs_frame, Dependency.get(ExtensionController.class).newExtension(QS.class) .withPlugin(QS.class) .withFeature( PackageManager.FEATURE_AUTOMOTIVE, () -> new CarQSFragment()) .withDefault(() -> new QSFragment()) .build()); final QSTileHost qsh = SystemUIFactory.getInstance().createQSTileHost(mContext, this, mIconController); mBrightnessMirrorController = new BrightnessMirrorController(mStatusBarWindow, mScrimController); fragmentHostManager.addTagListener(QS.TAG, (tag, f) -> { QS qs = (QS) f; if (qs instanceof QSFragment) { ((QSFragment) qs).setHost(qsh); mQSPanel = ((QSFragment) qs).getQsPanel(); mQSPanel.setBrightnessMirror(mBrightnessMirrorController); mKeyguardStatusBar.setQSPanel(mQSPanel); } }); } mReportRejectedTouch = mStatusBarWindow.findViewById(R.id.report_rejected_touch); if (mReportRejectedTouch != null) { updateReportRejectedTouchVisibility(); mReportRejectedTouch.setOnClickListener(v -> { Uri session = mFalsingManager.reportRejectedTouch(); if (session == null) { return; } StringWriter message = new StringWriter(); message.write("Build info: "); message.write(SystemProperties.get("ro.build.description")); message.write("\nSerial number: "); message.write(SystemProperties.get("ro.serialno")); message.write("\n"); PrintWriter falsingPw = new PrintWriter(message); FalsingLog.dump(falsingPw); falsingPw.flush(); startActivityDismissingKeyguard(Intent.createChooser(new Intent(Intent.ACTION_SEND) .setType("*/*") .putExtra(Intent.EXTRA_SUBJECT, "Rejected touch report") .putExtra(Intent.EXTRA_STREAM, session) .putExtra(Intent.EXTRA_TEXT, message.toString()), "Share rejected touch report") .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK), true /* onlyProvisioned */, true /* dismissShade */); }); } PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); if (!pm.isScreenOn()) { mBroadcastReceiver.onReceive(mContext, new Intent(Intent.ACTION_SCREEN_OFF)); } mGestureWakeLock = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "GestureWakeLock"); mVibrator = mContext.getSystemService(Vibrator.class); int[] pattern = mContext.getResources().getIntArray( R.array.config_cameraLaunchGestureVibePattern); mCameraLaunchGestureVibePattern = new long[pattern.length]; for (int i = 0; i < pattern.length; i++) { mCameraLaunchGestureVibePattern[i] = pattern[i]; } // receive broadcasts IntentFilter filter = new IntentFilter(); filter.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS); filter.addAction(Intent.ACTION_SCREEN_OFF); filter.addAction(DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG); context.registerReceiverAsUser(mBroadcastReceiver, UserHandle.ALL, filter, null, null); IntentFilter demoFilter = new IntentFilter(); if (DEBUG_MEDIA_FAKE_ARTWORK) { demoFilter.addAction(ACTION_FAKE_ARTWORK); } demoFilter.addAction(ACTION_DEMO); context.registerReceiverAsUser(mDemoReceiver, UserHandle.ALL, demoFilter, android.Manifest.permission.DUMP, null); // listen for USER_SETUP_COMPLETE setting (per-user) mDeviceProvisionedController.addCallback(mUserSetupObserver); mUserSetupObserver.onUserSetupChanged(); // disable profiling bars, since they overlap and clutter the output on app windows ThreadedRenderer.overrideProperty("disableProfileBars", "true"); // Private API call to make the shadows look better for Recents ThreadedRenderer.overrideProperty("ambientRatio", String.valueOf(1.5f)); } |
&nbs […]