Android浸入式

现在比较流行的就是浸入式，也就是状态栏颜色和当前页面颜色保持一致，为了有更好的视觉效果。
首先：
在setContentView（）之前加上如下代码
tintManager.setStatusBarTintResource（）可以设置想要的通知栏颜色

@Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {            setTranslucentStatus(true);            SystemBarTintManager tintManager = new SystemBarTintManager(this);            tintManager.setStatusBarTintEnabled(true);            tintManager.setStatusBarTintResource(R.color.app_main_color);//通知栏所需颜色        }        setContentView(R.layout.activity_base);    }    @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);    }

效果图

SystemBarTintManager类附在下面

import android.annotation.SuppressLint;import android.annotation.TargetApi;import android.app.Activity;import android.content.Context;import android.content.res.Configuration;import android.content.res.Resources;import android.content.res.TypedArray;import android.graphics.drawable.Drawable;import android.os.Build;import android.util.DisplayMetrics;import android.util.TypedValue;import android.view.Gravity;import android.view.View;import android.view.ViewConfiguration;import android.view.ViewGroup;import android.view.Window;import android.view.WindowManager;import android.widget.FrameLayout.LayoutParams;import java.lang.reflect.Method;/** * Class to manage status and navigation bar tint effects when using KitKat * translucent system UI modes. * */public class SystemBarTintManager {    static {        // Android allows a system property to override the presence of the navigation bar.        // Used by the emulator.        // See https://github.com/android/platform_frameworks_base/blob/master/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java#L1076        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {            try {                Class c = Class.forName("android.os.SystemProperties");                Method m = c.getDeclaredMethod("get", String.class);                m.setAccessible(true);                sNavBarOverride = (String) m.invoke(null, "qemu.hw.mainkeys");            } catch (Throwable e) {                sNavBarOverride = null;            }        }    }    /**     * The default system bar tint color value.     */    public static final int DEFAULT_TINT_COLOR = 0x99000000;    private static String sNavBarOverride;    private final SystemBarConfig mConfig;    private boolean mStatusBarAvailable;    private boolean mNavBarAvailable;    private boolean mStatusBarTintEnabled;    private boolean mNavBarTintEnabled;    private View mStatusBarTintView;    private View mNavBarTintView;    /**     * Constructor. Call this in the host activity onCreate method after its     * content view has been set. You should always create new instances when     * the host activity is recreated.     *     * @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.     *     * If the platform is running Jelly Bean or earlier, or translucent system     * UI modes have not been enabled in either the theme or via window flags,     * then this method does nothing.     *     * @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);        }    }    /**     * Enable tinting of the system navigation bar.     *     * If the platform does not have soft navigation keys, is running Jelly Bean     * or earlier, or translucent system UI modes have not been enabled in either     * the theme or via window flags, then this method does nothing.     *     * @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 = TypedValue.complexToDimensionPixelSize(tv.data, context.getResources().getDisplayMetrics());            }            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;        }        @TargetApi(14)        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 !ViewConfiguration.get(context).hasPermanentMenuKey();            }        }        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;            }        }    }}

最后加入 android:fitsSystemWindows="true"必然显示不完整会被覆盖

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