流程网站,十个免费域名,wordpress 显示用户昵称,个人网站盈利模式上一篇文章我们看到了车载状态栏 CarSystemBar 视图的创建流程#xff0c;这里我们继续分析将车载状态栏添加到 Windows 窗口中。
一、添加状态栏到窗口 前面我们已经分析了构建视图对象容器和构建视图对象内容#xff0c;接下来我们继续分析 attachNavBarWindows() 方法将视… 上一篇文章我们看到了车载状态栏 CarSystemBar 视图的创建流程这里我们继续分析将车载状态栏添加到 Windows 窗口中。
一、添加状态栏到窗口 前面我们已经分析了构建视图对象容器和构建视图对象内容接下来我们继续分析 attachNavBarWindows() 方法将视图对象添加到 Window 中。
1、CarSystemBar
源码位置/packages/apps/Car/SystemUI/src/com/android/systemui/car/systembar/CarSystemBar.java
attachNavBarWindows
private final SystemBarConfigs mSystemBarConfigs;private void attachNavBarWindows() {mSystemBarConfigs.getSystemBarSidesByZOrder().forEach(this::attachNavBarBySide);
} attachNavBarWindows() 会调用 SystemBarConfigs 的 getSystemBarSidesByZOrder() 方法获取到当前存在的所有 SystemBar 所对应的 Side。
2、SystemBarConfigs
源码位置/packages/apps/Car/SystemUI/src/com/android/systemui/car/systembar/SystemBarConfigs.java
private final ListSystemBarSide Integer mSystemBarSidesByZOrder new ArrayList();protected ListInteger getSystemBarSidesByZOrder() {return mSystemBarSidesByZOrder;
} 可以看到这里返回一个 ListSystemBarSide Integer 类型的数组下面看一下 mSystemBarSidesByZOrder 数据的赋值。
sortSystemBarSidesByZOrder
private final MapSystemBarSide Integer, SystemBarConfig mSystemBarConfigMap new ArrayMap();private void sortSystemBarSidesByZOrder() {// 获取SystemBarConfig列表ListSystemBarConfig systemBarsByZOrder new ArrayList(mSystemBarConfigMap.values());systemBarsByZOrder.sort(new ComparatorSystemBarConfig() {Overridepublic int compare(SystemBarConfig o1, SystemBarConfig o2) {// 进行大小比较return o1.getZOrder() - o2.getZOrder();}});// 存储排序后SystemBar的Side数值。systemBarsByZOrder.forEach(systemBarConfig - {mSystemBarSidesByZOrder.add(systemBarConfig.getSide());});
}这里首先对 SystemBarConfig 列表根据序号对 SystemBar 进行排序并将排序后 SystemBar 的 Side 数值保存到 mSystemBarSidesByZOrder 数组中。而该函数是在 SystemBarConfigs 构造函数中进行调用并且在调用之前还要填充 mSystemBarConfigMap 数据。
SystemBarConfigs
Inject
public SystemBarConfigs(Main Resources resources) {mResources resources;// 初始化数据populateMaps();// 读取SystemBar所对应的SystemBarConfig的配置信息readConfigs();……// 使用SystemBarConfig的ZOrder属性对SystemBarConfig的Size进行排序sortSystemBarSidesByZOrder();
}readConfigs
private void readConfigs() {mTopNavBarEnabled mResources.getBoolean(R.bool.config_enableTopSystemBar);mBottomNavBarEnabled mResources.getBoolean(R.bool.config_enableBottomSystemBar);mLeftNavBarEnabled mResources.getBoolean(R.bool.config_enableLeftSystemBar);mRightNavBarEnabled mResources.getBoolean(R.bool.config_enableRightSystemBar);// 顶部栏可用if (mTopNavBarEnabled) {SystemBarConfig topBarConfig new SystemBarConfigBuilder().setSide(TOP)// 顶部栏高度.setGirth(mResources.getDimensionPixelSize(R.dimen.car_top_system_bar_height))// 系统栏类型.setBarType(mResources.getInteger(R.integer.config_topSystemBarType))// 系统栏Z轴序列.setZOrder(mResources.getInteger(R.integer.config_topSystemBarZOrder)).setHideForKeyboard(mResources.getBoolean(R.bool.config_hideTopSystemBarForKeyboard)).build();mSystemBarConfigMap.put(TOP, topBarConfig);}// 底部栏可用if (mBottomNavBarEnabled) {SystemBarConfig bottomBarConfig new SystemBarConfigBuilder().setSide(BOTTOM).setGirth(mResources.getDimensionPixelSize(R.dimen.car_bottom_system_bar_height)).setBarType(mResources.getInteger(R.integer.config_bottomSystemBarType)).setZOrder(mResources.getInteger(R.integer.config_bottomSystemBarZOrder)).setHideForKeyboard(mResources.getBoolean(R.bool.config_hideBottomSystemBarForKeyboard)).build();mSystemBarConfigMap.put(BOTTOM, bottomBarConfig);}// 左侧栏不可用if (mLeftNavBarEnabled) {SystemBarConfig leftBarConfig new SystemBarConfigBuilder().setSide(LEFT).setGirth(mResources.getDimensionPixelSize(R.dimen.car_left_system_bar_width)).setBarType(mResources.getInteger(R.integer.config_leftSystemBarType)).setZOrder(mResources.getInteger(R.integer.config_leftSystemBarZOrder)).setHideForKeyboard(mResources.getBoolean(R.bool.config_hideLeftSystemBarForKeyboard)).build();mSystemBarConfigMap.put(LEFT, leftBarConfig);}// 右侧栏不可用if (mRightNavBarEnabled) {SystemBarConfig rightBarConfig new SystemBarConfigBuilder().setSide(RIGHT).setGirth(mResources.getDimensionPixelSize(R.dimen.car_right_system_bar_width)).setBarType(mResources.getInteger(R.integer.config_rightSystemBarType)).setZOrder(mResources.getInteger(R.integer.config_rightSystemBarZOrder)).setHideForKeyboard(mResources.getBoolean(R.bool.config_hideRightSystemBarForKeyboard)).build();mSystemBarConfigMap.put(RIGHT, rightBarConfig);}
} 这里首先获取状态了的可用状态从 config.xml 文件中获取对应数据。
!-- 配置应该显示哪些系统条 --
bool nameconfig_enableTopSystemBartrue/bool
bool nameconfig_enableLeftSystemBarfalse/bool
bool nameconfig_enableRightSystemBarfalse/bool
bool nameconfig_enableBottomSystemBartrue/bool 可以看到这里配置了状态栏的显示状态所以修改进度条的显示位置可以通过修改该数据实现。 同样其他相关的配置信息也都可以在对应的配置文件中找到。
3、添加状态栏 我们知道 attachNavBarWindows() 方法最终会循环 mSystemBarSidesByZOrder 集合的内容用该集合的子项作为参数依次调用 attachNavBarBySide() 方法。
attachNavBarBySide
private void attachNavBarBySide(int side) {switch (side) {case SystemBarConfigs.TOP:// 如果顶部栏视图容器不为空将顶部栏视图容器添加到Window中if (mTopSystemBarWindow ! null) {mWindowManager.addView(mTopSystemBarWindow,mSystemBarConfigs.getLayoutParamsBySide(SystemBarConfigs.TOP));}break;case SystemBarConfigs.BOTTOM:if (mBottomSystemBarWindow ! null !mBottomNavBarVisible) {mBottomNavBarVisible true;mWindowManager.addView(mBottomSystemBarWindow,mSystemBarConfigs.getLayoutParamsBySide(SystemBarConfigs.BOTTOM));}break;case SystemBarConfigs.LEFT:if (mLeftSystemBarWindow ! null) {mWindowManager.addView(mLeftSystemBarWindow,mSystemBarConfigs.getLayoutParamsBySide(SystemBarConfigs.LEFT));}break;case SystemBarConfigs.RIGHT:if (mRightSystemBarWindow ! null) {mWindowManager.addView(mRightSystemBarWindow,mSystemBarConfigs.getLayoutParamsBySide(SystemBarConfigs.RIGHT));}break;default:return;}
} 该方法就是根据对应的 type 判断当前视图容器的具体类型到底是顶部栏、底部栏、左侧栏还是右侧栏根据类型配合类型相对应的参数将该视图容器添加到 WindowManager 中。
二、状态栏配置 状态栏配置类 SystemBarConfig 为 SystemBarConfigs 的内部类。
1、SystemBarConfig
// 系统条将开始出现在HUN的顶部的z轴顺序
private static final int HUN_ZORDER 10;private static final int[] BAR_TYPE_MAP {InsetsState.ITYPE_STATUS_BAR, // 状态栏对应的系统装饰窗口类型InsetsState.ITYPE_NAVIGATION_BAR, // 导航栏对应的系统装饰窗口类型InsetsState.ITYPE_CLIMATE_BAR, // 左侧栏对应的系统装饰窗口类型InsetsState.ITYPE_EXTRA_NAVIGATION_BAR // 右侧栏对应的系统装饰窗口类型private static final class SystemBarConfig {private final int mSide;private final int mBarType;private final int mGirth;private final int mZOrder;private final boolean mHideForKeyboard;private int[] mPaddings new int[]{0, 0, 0, 0};private SystemBarConfig(SystemBarSide int side, int barType, int girth, int zOrder,boolean hideForKeyboard) {mSide side;mBarType barType;mGirth girth;mZOrder zOrder;mHideForKeyboard hideForKeyboard;}private int getSide() {return mSide;}private int getBarType() {return mBarType;}private int getGirth() {return mGirth;}private int getZOrder() {return mZOrder;}private boolean getHideForKeyboard() {return mHideForKeyboard;}private int[] getPaddings() {return mPaddings;}private WindowManager.LayoutParams getLayoutParams() {WindowManager.LayoutParams lp new WindowManager.LayoutParams(isHorizontalBar(mSide) ? ViewGroup.LayoutParams.MATCH_PARENT : mGirth,isHorizontalBar(mSide) ? mGirth : ViewGroup.LayoutParams.MATCH_PARENT,mapZOrderToBarType(mZOrder),WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL| WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH| WindowManager.LayoutParams.FLAG_SPLIT_TOUCH,PixelFormat.TRANSLUCENT); // 设置窗口半透明全透明TRANSPARENTlp.setTitle(BAR_TITLE_MAP.get(mSide));//顶部栏为new int[]{InsetsState.ITYPE_STATUS_BAR, InsetsState.ITYPE_TOP_MANDATORY_GESTURES}//底部栏为new int[]{InsetsState.ITYPE_NAVIGATION_BAR, InsetsState.ITYPE_BOTTOM_MANDATORY_GESTURES}//providesInsetsTypes这个字段很重要只有设置对这个字段系统才会认定该窗口是对应的装饰窗口lp.providesInsetsTypes new int[]{BAR_TYPE_MAP[mBarType], BAR_GESTURE_MAP.get(mSide)};lp.setFitInsetsTypes(0);lp.windowAnimations 0;lp.gravity BAR_GRAVITY_MAP.get(mSide);return lp;}private int mapZOrderToBarType(int zOrder) {// 顶部栏窗口类型为TYPE_STATUS_BAR_ADDITIONAL底部栏TYPE_NAVIGATION_BAR_PANELreturn zOrder HUN_ZORDER ? WindowManager.LayoutParams.TYPE_NAVIGATION_BAR_PANEL: WindowManager.LayoutParams.TYPE_STATUS_BAR_ADDITIONAL;}private void setPaddingBySide(SystemBarSide int side, int padding) {mPaddings[side] padding;}
} 这里主要用来配置状态栏类型及对应的视图内容其中状态栏位置和标题等信息是在上面的 populateMaps() 方法中赋值。
populateMaps
public static final int TOP 0;
public static final int BOTTOM 1;
public static final int LEFT 2;
public static final int RIGHT 3;private static void populateMaps() {// 将系统栏位置与Gravity值关联BAR_GRAVITY_MAP.put(TOP, Gravity.TOP);BAR_GRAVITY_MAP.put(BOTTOM, Gravity.BOTTOM);BAR_GRAVITY_MAP.put(LEFT, Gravity.LEFT);BAR_GRAVITY_MAP.put(RIGHT, Gravity.RIGHT);// 将系统栏位置与标题字符串关联BAR_TITLE_MAP.put(TOP, TopCarSystemBar);BAR_TITLE_MAP.put(BOTTOM, BottomCarSystemBar);BAR_TITLE_MAP.put(LEFT, LeftCarSystemBar);BAR_TITLE_MAP.put(RIGHT, RightCarSystemBar);// 将系统栏位置与手势类型关联BAR_GESTURE_MAP.put(TOP, InsetsState.ITYPE_TOP_MANDATORY_GESTURES);BAR_GESTURE_MAP.put(BOTTOM, InsetsState.ITYPE_BOTTOM_MANDATORY_GESTURES);BAR_GESTURE_MAP.put(LEFT, InsetsState.ITYPE_LEFT_MANDATORY_GESTURES);BAR_GESTURE_MAP.put(RIGHT, InsetsState.ITYPE_RIGHT_MANDATORY_GESTURES);
}
2、SystemBarConfigBuilder
private static final class SystemBarConfigBuilder {private int mSide;private int mBarType;private int mGirth;private int mZOrder;private boolean mHideForKeyboard;private SystemBarConfigBuilder setSide(SystemBarSide int side) {mSide side;return this;}private SystemBarConfigBuilder setBarType(int type) {mBarType type;return this;}private SystemBarConfigBuilder setGirth(int girth) {mGirth girth;return this;}private SystemBarConfigBuilder setZOrder(int zOrder) {mZOrder zOrder;return this;}private SystemBarConfigBuilder setHideForKeyboard(boolean hide) {mHideForKeyboard hide;return this;}private SystemBarConfig build() {return new SystemBarConfig(mSide, mBarType, mGirth, mZOrder, mHideForKeyboard);}
}SystemBarConfigBuilder 同样是 SystemBarConfigs 的内部类它实现了构建者模式Builder Pattern用于简化 SystemBarConfig 对象的创建。
