一、圖片沉底

 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
     // 透明狀態列
     getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
     // 透明導航欄
     //getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
 }

將程式碼放在Actvity的OnCreate的setContentView(R.layout.

（注：需要在對於的Activity的佈局檔案中需要放在狀態列下方的控制元件新增上android:fitsSystemWindows="true"）

可以看到狀態列任有一個半透明的灰色條，這是為了防止背景色與狀態列字型顏色相同，影響使用者體驗。但是我們也是可以去掉的。如下

將程式碼改為

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    Window window = getWindow();
    window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
    window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
    window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
    window.setStatusBarColor(Color.TRANSPARENT);
}
 

二、固定顏色的狀態列

同樣的需要在佈局檔案設定android:fitsSystemWindows="true"

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        // 透明狀態列
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        // 透明導航欄
        //getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
        SystemStatusManager tintManager = new SystemStatusManager(this);//（SystemStatusManager是工具類，下面提供了）
        tintManager.setStatusBarTintEnabled(true);
        tintManager.setStatusBarTintResource(R.color.colorAccent);//你要設定的顏色
        getWindow().getDecorView().setFitsSystemWindows(true);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
        }
    }

}

看到這裡，基本上可以滿足開發需求了，但是在實際運用過程中會出現部分手機不相容（極少數手機如魅族）。狀態列有線條的情況出現，我將在下篇部落格為大家解讀。

本片文章的使用的佈局檔案為同一個

工具類SystemStatusManager

public class SystemStatusManager
{
    static
{
        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 SystemStatusManager(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;
}
        }
    }
}

原始碼下載https://download.csdn.net/download/chxc_yy/10282168