Android获取顶部状态栏statusBar高度 底部导航栏navigationBar高度

手机顶部显示时间、电量等信息的叫状态栏，即statusBar有些手机比如华为在底部会有返回、回到主页面等虚拟功能键，这是导航栏，即navigationBar

下面列出一些项目中常用的功能代码? 嘻嘻……

1.获取顶部statusBar高度

private int getStatusBarHeight() {Resources resources = mActivity.getResources();int resourceId = resources.getIdentifier("status_bar_height", "dimen","android");int height = resources.getDimensionPixelSize(resourceId);return height;}

2.获取底部navigationBar高度

private int getNavigationBarHeight() {Resources resources = mActivity.getResources();int resourceId = resources.getIdentifier("navigation_bar_height","dimen", "android");int height = resources.getDimensionPixelSize(resourceId);return height;}

3.获取设备是否存在NavigationBar

public static boolean checkDeviceHasNavigationBar(Context context) {boolean hasNavigationBar = false;Resources rs = context.getResources();int id = rs.getIdentifier("config_showNavigationBar", "bool", "android");if (id > 0) {hasNavigationBar = rs.getBoolean(id);}try {Class systemPropertiesClass = Class.forName("android.os.SystemProperties");Method m = systemPropertiesClass.getMethod("get", String.class);String navBarOverride = (String) m.invoke(systemPropertiesClass, "qemu.hw.mainkeys");if ("1".equals(navBarOverride)) {hasNavigationBar = false;} else if ("0".equals(navBarOverride)) {hasNavigationBar = true;}} catch (Exception e) {//do something}return hasNavigationBar;}

4.获取屏幕高度

public static int getScreenHeight(Context context) {DisplayMetrics dm = context.getResources().getDisplayMetrics();return dm.heightPixels;}

5.获取屏幕宽度

public static int getScreenWidth(Context context) {DisplayMetrics dm = context.getResources().getDisplayMetrics();return dm.widthPixels;}