一.透明（沉浸式）状态栏设计
通过第三方代码实现透明状态栏的主要代码如下。
public class SystemBarTintManager { /** * The default system bar tint color value. */ public static final int DEFAULT_TINT_COLOR = 0x99000000; private final SystemBarConfig mConfig; private boolean mStatusBarAvailable; private boolean mNavBarAvailable; private boolean mStatusBarTintEnabled; private boolean mNavBarTintEnabled; private View mStatusBarTintView; private View mNavBarTintView; private static boolean sIsMiuiV6; private static String sNavBarOverride = null; static { Method methodGetter = null; try { Class sysClass = Class.forName("android.os.SystemProperties"); methodGetter = sysClass.getDeclaredMethod("get", String.class); sIsMiuiV6 = "V6".equals((String) methodGetter.invoke(sysClass, "ro.miui.ui.version.name")); } catch (Exception e) { e.printStackTrace(); }finally{ if(methodGetter!=null) { try { sNavBarOverride = (String) methodGetter.invoke(null, "qemu.hw.mainkeys"); } catch (Exception e) { e.printStackTrace(); sNavBarOverride = null; } } } } /** * @param activity The host activity. */ @TargetApi(19) public SystemBarTintManager(Activity activity) { Window win = activity.getWindow(); ViewGroup decorViewGroup = (ViewGroup) win.getDecorView(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // check theme attrs int[] attrs = {android.R.attr.windowTranslucentStatus,android.R.attr.windowTranslucentNavigation}; TypedArray a = activity.obtainStyledAttributes(attrs); try { mStatusBarAvailable = a.getBoolean(0, false); mNavBarAvailable = a.getBoolean(1, false); } finally { a.recycle(); } // check window flags WindowManager.LayoutParams winParams = win.getAttributes(); int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS; if ((winParams.flags & bits) != 0) { mStatusBarAvailable = true; } bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION; if ((winParams.flags & bits) != 0) { mNavBarAvailable = true; } } mConfig = new SystemBarConfig(activity, mStatusBarAvailable, mNavBarAvailable); // device might not have virtual navigation keys if (!mConfig.hasNavigtionBar()) { mNavBarAvailable = false; } if (mStatusBarAvailable) { setupStatusBarView(activity, decorViewGroup); } if (mNavBarAvailable) { setupNavBarView(activity, decorViewGroup); } } /** * Enable tinting of the system status bar. * * @param enabled True to enable tinting, false to disable it (default). */ public void setStatusBarTintEnabled(boolean enabled) { mStatusBarTintEnabled = enabled; if (mStatusBarAvailable) { mStatusBarTintView.setVisibility(enabled ? View.VISIBLE : View.GONE); } } /** * set status bar darkmode * @param darkmode * @param activity */ public void setStatusBarDarkMode(boolean darkmode, Activity activity) { if (sIsMiuiV6) { Class clazz = activity.getWindow().getClass(); try { int darkModeFlag = 0; Class layoutParams = Class.forName("android.view.MiuiWindowManager$LayoutParams"); Field field = layoutParams.getField("EXTRA_FLAG_STATUS_BAR_DARK_MODE"); darkModeFlag = field.getInt(layoutParams); Method extraFlagField = clazz.getMethod("setExtraFlags", int.class, int.class); extraFlagField.invoke(activity.getWindow(), darkmode ? darkModeFlag : 0, darkModeFlag); } catch (Exception e) { e.printStackTrace(); } } } /** * Enable tinting of the system navigation bar. * @param enabled True to enable tinting, false to disable it (default). */ public void setNavigationBarTintEnabled(boolean enabled) { mNavBarTintEnabled = enabled; if (mNavBarAvailable) { mNavBarTintView.setVisibility(enabled ? View.VISIBLE : View.GONE); } } /** * Apply the specified color tint to all system UI bars. * @param color The color of the background tint. */ public void setTintColor(int color) { setStatusBarTintColor(color); setNavigationBarTintColor(color); } /** * Apply the specified drawable or color resource to all system UI bars. * @param res The identifier of the resource. */ public void setTintResource(int res) { setStatusBarTintResource(res); setNavigationBarTintResource(res); } /** * Apply the specified drawable to all system UI bars. * @param drawable The drawable to use as the background, or null to remove it. */ public void setTintDrawable(Drawable drawable) { setStatusBarTintDrawable(drawable); setNavigationBarTintDrawable(drawable); } /** * Apply the specified alpha to all system UI bars. * @param alpha The alpha to use */ public void setTintAlpha(float alpha) { setStatusBarAlpha(alpha); setNavigationBarAlpha(alpha); } /** * Apply the specified color tint to the system status bar. * @param color The color of the background tint. */ public void setStatusBarTintColor(int color) { if (mStatusBarAvailable) { mStatusBarTintView.setBackgroundColor(color); } } /** * Apply the specified drawable or color resource to the system status bar. * @param res The identifier of the resource. */ public void setStatusBarTintResource(int res) { if (mStatusBarAvailable) { mStatusBarTintView.setBackgroundResource(res); } } /** * Apply the specified drawable to the system status bar. * @param drawable The drawable to use as the background, or null to remove it. */ @SuppressWarnings("deprecation") public void setStatusBarTintDrawable(Drawable drawable) { if (mStatusBarAvailable) { mStatusBarTintView.setBackgroundDrawable(drawable); } } /** * Apply the specified alpha to the system status bar. * * @param alpha The alpha to use */ @TargetApi(11) public void setStatusBarAlpha(float alpha) { if (mStatusBarAvailable && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { mStatusBarTintView.setAlpha(alpha); } } /** * Apply the specified color tint to the system navigation bar. * * @param color The color of the background tint. */ public void setNavigationBarTintColor(int color) { if (mNavBarAvailable) { mNavBarTintView.setBackgroundColor(color); } } /** * Apply the specified drawable or color resource to the system navigation bar. * * @param res The identifier of the resource. */ public void setNavigationBarTintResource(int res) { if (mNavBarAvailable) { mNavBarTintView.setBackgroundResource(res); } } /** * Apply the specified drawable to the system navigation bar. * * @param drawable The drawable to use as the background, or null to remove it. */ @SuppressWarnings("deprecation") public void setNavigationBarTintDrawable(Drawable drawable) { if (mNavBarAvailable) { mNavBarTintView.setBackgroundDrawable(drawable); } } /** * Apply the specified alpha to the system navigation bar. * * @param alpha The alpha to use */ @TargetApi(11) public void setNavigationBarAlpha(float alpha) { if (mNavBarAvailable && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { mNavBarTintView.setAlpha(alpha); } } /** * Get the system bar configuration. * @return The system bar configuration for the current device configuration. */ public SystemBarConfig getConfig() { return mConfig; } /** * Is tinting enabled for the system status bar? * @return True if enabled, False otherwise. */ public boolean isStatusBarTintEnabled() { return mStatusBarTintEnabled; } /** * Is tinting enabled for the system navigation bar? * @return True if enabled, False otherwise. */ public boolean isNavBarTintEnabled() { return mNavBarTintEnabled; } private void setupStatusBarView(Context context, ViewGroup decorViewGroup) { mStatusBarTintView = new View(context); LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, mConfig.getStatusBarHeight()); params.gravity = Gravity.TOP; if (mNavBarAvailable && !mConfig.isNavigationAtBottom()) { params.rightMargin = mConfig.getNavigationBarWidth(); } mStatusBarTintView.setLayoutParams(params); mStatusBarTintView.setBackgroundColor(DEFAULT_TINT_COLOR); mStatusBarTintView.setVisibility(View.GONE); decorViewGroup.addView(mStatusBarTintView); } private void setupNavBarView(Context context, ViewGroup decorViewGroup) { mNavBarTintView = new View(context); LayoutParams params; if (mConfig.isNavigationAtBottom()) { params = new LayoutParams(LayoutParams.MATCH_PARENT, mConfig.getNavigationBarHeight()); params.gravity = Gravity.BOTTOM; } else { params = new LayoutParams(mConfig.getNavigationBarWidth(), LayoutParams.MATCH_PARENT); params.gravity = Gravity.RIGHT; } mNavBarTintView.setLayoutParams(params); mNavBarTintView.setBackgroundColor(DEFAULT_TINT_COLOR); mNavBarTintView.setVisibility(View.GONE); decorViewGroup.addView(mNavBarTintView); } /** * Class which describes system bar sizing and other characteristics for the current * device configuration. * */ public static class SystemBarConfig { private static final String STATUS_BAR_HEIGHT_RES_NAME = "status_bar_height"; private static final String NAV_BAR_HEIGHT_RES_NAME = "navigation_bar_height"; private static final String NAV_BAR_HEIGHT_LANDSCAPE_RES_NAME = "navigation_bar_height_landscape"; private static final String NAV_BAR_WIDTH_RES_NAME = "navigation_bar_width"; private static final String SHOW_NAV_BAR_RES_NAME = "config_showNavigationBar"; private final boolean mTranslucentStatusBar; private final boolean mTranslucentNavBar; private final int mStatusBarHeight; private final int mActionBarHeight; private final boolean mHasNavigationBar; private final int mNavigationBarHeight; private final int mNavigationBarWidth; private final boolean mInPortrait; private final float mSmallestWidthDp; private SystemBarConfig(Activity activity, boolean translucentStatusBar, boolean traslucentNavBar) { Resources res = activity.getResources(); mInPortrait = (res.getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT); mSmallestWidthDp = getSmallestWidthDp(activity); mStatusBarHeight = getInternalDimensionSize(res, STATUS_BAR_HEIGHT_RES_NAME); mActionBarHeight = getActionBarHeight(activity); mNavigationBarHeight = getNavigationBarHeight(activity); mNavigationBarWidth = getNavigationBarWidth(activity); mHasNavigationBar = (mNavigationBarHeight > 0); mTranslucentStatusBar = translucentStatusBar; mTranslucentNavBar = traslucentNavBar; } @TargetApi(14) private int getActionBarHeight(Context context) { int result = 0; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { TypedValue tv = new TypedValue(); context.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true); result = context.getResources().getDimensionPixelSize(tv.resourceId); } return result; } @TargetApi(14) private int getNavigationBarHeight(Context context) { Resources res = context.getResources(); int result = 0; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { if (!hasNavBar(context)) { String key; if (mInPortrait) { key = NAV_BAR_HEIGHT_RES_NAME; } else { key = NAV_BAR_HEIGHT_LANDSCAPE_RES_NAME; } return getInternalDimensionSize(res, key); } } return result; } @TargetApi(14) private int getNavigationBarWidth(Context context) { Resources res = context.getResources(); int result = 0; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { if (!hasNavBar(context)) { return getInternalDimensionSize(res, NAV_BAR_WIDTH_RES_NAME); } } return result; } private int getInternalDimensionSize(Resources res, String key) { int result = 0; int resourceId = res.getIdentifier(key, "dimen", "android"); if (resourceId > 0) { result = res.getDimensionPixelSize(resourceId); } return result; } @SuppressLint("NewApi") private float getSmallestWidthDp(Activity activity) { DisplayMetrics metrics = new DisplayMetrics(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { activity.getWindowManager().getDefaultDisplay().getRealMetrics(metrics); } else { // TODO this is not correct, but we don't really care pre-kitkat activity.getWindowManager().getDefaultDisplay().getMetrics(metrics); } float widthDp = metrics.widthPixels / metrics.density; float heightDp = metrics.heightPixels / metrics.density; return Math.min(widthDp, heightDp); } /** * Should a navigation bar appear at the bottom of the screen in the current * device configuration? A navigation bar may appear on the right side of * the screen in certain configurations. * * @return True if navigation should appear at the bottom of the screen, False otherwise. */ public boolean isNavigationAtBottom() { return (mSmallestWidthDp >= 600 || mInPortrait); } /** * Get the height of the system status bar. * * @return The height of the status bar (in pixels). */ public int getStatusBarHeight() { return mStatusBarHeight; } /** * Get the height of the action bar. * * @return The height of the action bar (in pixels). */ public int getActionBarHeight() { return mActionBarHeight; } /** * Does this device have a system navigation bar? * * @return True if this device uses soft key navigation, False otherwise. */ public boolean hasNavigtionBar() { return mHasNavigationBar; } /** * Get the height of the system navigation bar. * * @return The height of the navigation bar (in pixels). If the device does not have * soft navigation keys, this will always return 0. */ public int getNavigationBarHeight() { return mNavigationBarHeight; } /** * Get the width of the system navigation bar when it is placed vertically on the screen. * * @return The width of the navigation bar (in pixels). If the device does not have * soft navigation keys, this will always return 0. */ public int getNavigationBarWidth() { return mNavigationBarWidth; } /** * Get the layout inset for any system UI that appears at the top of the screen. * * @param withActionBar True to include the height of the action bar, False otherwise. * @return The layout inset (in pixels). */ public int getPixelInsetTop(boolean withActionBar) { return (mTranslucentStatusBar ? mStatusBarHeight : 0) + (withActionBar ? mActionBarHeight : 0); } /** * Get the layout inset for any system UI that appears at the bottom of the screen. * * @return The layout inset (in pixels). */ public int getPixelInsetBottom() { if (mTranslucentNavBar && isNavigationAtBottom()) { return mNavigationBarHeight; } else { return 0; } } /** * Get the layout inset for any system UI that appears at the right of the screen. * * @return The layout inset (in pixels). */ public int getPixelInsetRight() { if (mTranslucentNavBar && !isNavigationAtBottom()) { return mNavigationBarWidth; } else { return 0; } } private boolean hasNavBar(Context context) { Resources res = context.getResources(); int resourceId = res.getIdentifier(SHOW_NAV_BAR_RES_NAME, "bool", "android"); if (resourceId != 0) { boolean hasNav = res.getBoolean(resourceId); // check override flag (see static block) if ("1".equals(sNavBarOverride)) { hasNav = false; } else if ("0".equals(sNavBarOverride)) { hasNav = true; } return hasNav; } else { // fallback return !hasPermanentMenuKey(context); } } private boolean hasPermanentMenuKey(Context cxt) { try { WindowManager wm = (WindowManager) cxt.getSystemService(Context.WINDOW_SERVICE); ViewConfiguration config = ViewConfiguration.get(cxt); Field menuKeyField = ViewConfiguration.class .getDeclaredField("sHasPermanentMenuKey"); if (menuKeyField != null) { menuKeyField.setAccessible(true); return menuKeyField.getBoolean(config); } } catch (Exception e) { e.printStackTrace(); } return false; } }} 用法如下
@Override protected void onCreate(Bundle arg0) { super.onCreate(arg0); windowAttributes = getWindow().getAttributes(); activity = this; mInflater = LayoutInflater.from(activity); globalUtils = GlobalUtils.shareInstance(); screenMetrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(screenMetrics); globalUtils = GlobalUtils.shareInstance(); userManager = UserManager.sharedInstance(); initHttpUtils(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { //状态栏透明 需要在创建SystemBarTintManager 之前调用。 setTranslucentStatus(true); } SystemBarTintManager tintManager = new SystemBarTintManager(this); tintManager.setStatusBarTintEnabled(true); //使StatusBarTintView 和 actionbar的颜色保持一致，风格统一。 tintManager.setStatusBarTintResource(R.color.white); // 设置状态栏的文字颜色 tintManager.setStatusBarDarkMode(true, this); } @TargetApi(19) private void setTranslucentStatus(boolean on) { Window win = getWindow(); WindowManager.LayoutParams winParams = win.getAttributes(); final int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS; if (on) { winParams.flags |= bits; } else { winParams.flags &= ~bits; } win.setAttributes(winParams); } 注意：状态栏透明可能导致布局向上便宜，所以需要设置根布局的android:fitsSystemWindows="true"
二.PopWindow全屏与状态栏高度获取
项目中使用了popWindow，并且需求指明了popWindow必须是和Activity类似的全屏模式，并且从页面底部弹出！
当popWindow所有设计完毕后，从底部弹出popWindow,发现设置在popWindow的上的titlebar一部分被压入状态栏的底部了，也就是说全屏是全屏了，但是超过了应有的部分！
解决方案：
ContentView的获取
view contentView = ((ViewGroup)getWindow().getDecorView().findViewById(android.R.id.content)).getChildAt(0);
titleView，ActionBar的获取相对复杂，具体来说titleView显得更另类，具体参考
为了达到良好的兼容性，我们可以如下变现代码
/** * 用于获取状态栏的高度。 * * @return 返回状态栏高度的像素值。 */ private int getStatusBarHeight() { int statusBarHeight = 0; try { Class c = Class.forName("com.android.internal.R$dimen"); Object o = c.newInstance(); Field field = c.getField("status_bar_height"); int x = (Integer) field.get(o); statusBarHeight = getResources().getDimensionPixelSize(x); } catch (Exception e) { e.printStackTrace(); Rect frame = new Rect(); getWindow().getDecorView().getWindowVisibleDisplayFrame(frame); statusBarHeight = frame.top; } return statusBarHeight; } 还可以使用Resource对象获取（推荐这种方式）
private int getStatusBarHeight() { int result = 0; int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android"); if (resourceId > 0) { result = res.getDimensionPixelSize(resourceId); } return result; } -----------------------------------2015-01-29 更新--------------------------------------
公司有测试人员发现，FlymeOS4.x/Android4.4.4出现 了问题，让人一头雾水，因此，这里把问题再次改正一下，目前Android4.4.4的系统不多，只检测到魅族的FlymeOS4.x有问题，所以对FlymeOS着重处理一下。
手写判断是否是Flyme OsS 4.x.x
private boolean isFlymeOs4x(){ String sysVersion = android.os.Build.VERSION.RELEASE; if("4.4.4".equals(sysVersion)) { String sysIncrement = android.os.Build.VERSION.INCREMENTAL; String displayId = android.os.Build.DISPLAY; if(!TextUtils.isEmpty(sysIncrement)) { return sysIncrement.contains("Flyme_OS_4"); } else { return displayId.contains("Flyme OS 4"); } } return false;} 然后PopWindow改为
int statusBarHeight = getStatusBarHeight();if(isFlymeOs4x()){ searchFlightListWindow.setHeight(screenMetrics.heightPixels-statusBarHeight*2); //至于这里为什么乘以2，我只能说，除了鬼鬼们，只有魅族自己知道，我是发现获得的StatusBarHeight偏小，所以乘以2，实践检验是正确的，但也很无语 searchFlightListWindow.showAtLocation(findViewById(R.id.main), Gravity.BOTTOM, 0, 0);}else{ searchFlightListWindow.setHeight(screenMetrics.heightPixels-statusBarHeight); searchFlightListWindow.showAtLocation(findViewById(R.id.main), Gravity.BOTTOM, 0, 0);} 获取内容区视图
View contentView = getWindow().getDecorView().findViewById(android.R.id.content);View contentView = getWindow().getDecorView().getChildAt(0);View titleView = findViewById(Window.ID_ANDROID_CONTENT);