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转自
http://blog.csdn.net/u010156024/article/details/48321485
QQ实现了沉浸状态栏的效果，如图：
如图，好多应用如金山词霸等也实现了这样的效果。这样的效果很酷炫，其实设置很简单。
不过要说明的是，这种效果只能在API19以及以上版本中才能够做到。
如果想让界面Activity中实现这种效果，代码如下：
if(VERSION.SDK_INT >= VERSION_CODES.KITKAT) { //透明状态栏 getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) //透明导航栏 getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) }
VERSION_CODES.KITKAT就是API19的名称，只有手机系统版本大于19，才执行判断中的代码，才能显示沉浸状态栏的效果。
同时，这几句代码要写在setContentView(R.layout.XX);方法之前执行。
以上代码复制到Activity中执行效果如图：
这个界面的布局如下：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:background="#6699CC" android:gravity="center" > <EditText android:id="@+id/id_edt_username" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="输入账号" android:layout_margin="10dp" /> <EditText android:id="@+id/id_edt_password" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="输入密码" android:layout_margin="10dp" /> <Button android:id="@+id/id_btn_login" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="登录" android:layout_margin="10dp" /> LinearLayout>
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由于根节点中LinearLayout设置了背景颜色6699CC，所以上面的状态栏中设置成了6699CC这个颜色。
大家会问，上面有个标题栏，怎么去掉？很简单，使用requestWindowFeature(Window.FEATURE_NO_TITLE);就可以了，也是在setContentView(R.layout.XX);方法之前执行。
效果图：
这样是不是达到了整个界面同意的颜色的效果了。
上面的设置方法只是让一个Activity设置成沉浸状态栏的效果，如果想让整个应用中都想沉浸状态栏的效果，如何设置呢？有！！！确实有方法！！
如图所示，在res目录下面新建一个values-v19文件夹，下面新建一个styles.xml文件，内容如下：
<resources> <style name="AppBaseTheme" parent="android:Theme.Holo.Light.DarkActionBar"> -- API 14 theme customizations can go here. --> <item name="android:windowTranslucentStatus">true item> <item name="android:windowTranslucentNavigation">true item> style> resources>
这样安卓系统会根据这个目录中的配置，自动进行设置，自动会加载这个目录下边的设置。
这样设置之后，代码中的判断语句就不需要了。运行之后，你会发现整个应用的界面都会是沉浸状态栏的形式了。
可能细心的人，可能发现了，经过上面的设置，状态栏中的字体和应用中的顶部挨得太近了。如图：
上面图中箭头部分，靠的太近了，这个该怎么设置呢？
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:clipToPadding="true" android:fitsSystemWindows="true" > ............ ............
在该activity的布局文件中根元素下设置：
android:clipToPadding=”true”
android:fitsSystemWindows=”true”
就可以了。
效果图：
设置之后，间距是不是达到了我们想要的距离了，是正常的距离。
但是新问题出现了，状态栏颜色成了系统默认的颜色背景了。如何设置呢？简单！！！只要把上面的
android:clipToPadding=”true”
android:fitsSystemWindows=”true”
这两句代码放在布局文件的根元素的第一个元素下面就可以了。例如我的上面的界面的根元素是RelativeLayout，他的第一个元素是标题栏，一个返回按钮 ，一个图片按钮，可以把上面的两句代码放在标题栏的布局中，例如：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <RelativeLayout android:id="@+id/noticelist_title_rl" style="@style/Title_Bar" android:layout_height="60dp" android:background="#FF09D7E5" --重点是这两句--> android:clipToPadding="true" android:fitsSystemWindows="true" > <ImageView android:id="@+id/noticelist_back_icon" style="@style/Title_BackBtn" android:contentDescription="@string/app_name" /> <TextView android:id="@+id/noticelist_back_text" style="@style/Title_BackTx" android:layout_toRightOf="@id/noticelist_back_icon"/> ............ ............
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这样设置之后，效果图：
正常了些。整个背景都是想要的了。
至于如何设置状态栏中的字体颜色，从开源中国论坛中看到了一个牛人的代码，现在粘贴在此，我还没看明白，目测是从android源码的角度来写的，废话不多说，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) { 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(); } 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); 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 { 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); if ("1".equals(sNavBarOverride)) { hasNav = false; } else if ("0".equals(sNavBarOverride)) { hasNav = true; } return hasNav; } else { 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; } }}
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该工具类用法如下：
@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) { setTranslucentStatus(true); } SystemBarTintManager tintManager = new SystemBarTintManager(this); tintManager.setStatusBarTintEnabled(true); tintManager.setStatusBarTintResource(R.color.white); 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); }
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最后要注意：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”
该工具类用了一下，还可以，效果非常好。原网址：
上面可以设置状态栏和标题栏的字体颜色和背景颜色，方法有多种。状态栏字体颜色好像V6有两种，一个白色，一种黑色，不设置黑色的话，默认就是白色。但是本人水平有限，还没有看懂作者的代码的大部分意思，以后看懂之后在进行补充。
以上代码，亲测有效！大家如果用的时候有什么问题，可以留言或评论，我看到会及时回复的。【握手~~~】
