Android 沉浸式状态栏的实现

通过设置 FLAG ，让应用内容占用系统状态栏的空间，经测试该方式不会影响对导航栏的设置。

/**
 * 通过设置全屏，设置状态栏透明
 *
 * @param activity
 */
private void fullScreen(Activity activity) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            //5.x开始需要把颜色设置透明，否则导航栏会呈现系统默认的浅灰色
            Window window = activity.getWindow();
            View decorView = window.getDecorView();
            //两个 flag 要结合使用，表示让应用的主体内容占用系统状态栏的空间
            int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
            decorView.setSystemUiVisibility(option);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
            //导航栏颜色也可以正常设置
//                window.setNavigationBarColor(Color.TRANSPARENT);
        } else {
            Window window = activity.getWindow();
            WindowManager.LayoutParams attributes = window.getAttributes();
            int flagTranslucentStatus =         
            WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
            int flagTranslucentNavigation = 
            WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION;
            attributes.flags |= flagTranslucentStatus;
 //                attributes.flags |= flagTranslucentNavigation;
            window.setAttributes(attributes);
        }
    }
}

在需要的Activity的onCreate()中调用fullScreen()方法

fullScreen(this); 然后在activity的xml布局中加入

android:fitsSystemWindows="true"

为了状态栏实现更好效果，可以在onCreate()方法中加入以下代码，动态更新状态栏颜色，使其更美观。

        //当FitsSystemWindows设置 true 时，会在屏幕最上方预留出状态栏高度的 padding
        StatusBarUtil.setRootViewFitsSystemWindows(this,true);
        //设置状态栏透明
        StatusBarUtil.setTranslucentStatus(this);
        //一般的手机的状态栏文字和图标都是白色的, 可如果你的应用也是纯白色的, 或导致状态栏文字看不清
        //所以如果你是这种情况,请使用以下代码, 设置状态使用深色文字图标风格, 否则你可以选择性注释掉这个if内容
        if (!StatusBarUtil.setStatusBarDarkTheme(this, true)) {
            //如果不支持设置深色风格 为了兼容总不能让状态栏白白的看不清, 于是设置一个状态栏颜色为半透明,
            //这样半透明+白=灰, 状态栏的文字能看得清
            StatusBarUtil.setStatusBarColor(this,0x55000000);
        }

转自：https://www.jianshu.com/p/dc20e98b9a90

附用到的工具类

首先贴上一个众所周知的库 SystemBarTint我只要这个类--https://github.com/jgilfelt/SystemBarTint/blob/master/library/src/com/readystatesoftware/systembartint/SystemBarTintManager.java

StatusBarUtil ：

import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.os.Build;
import android.support.annotation.IntDef;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class StatusBarUtil {
    public final static int TYPE_MIUI = 0;
    public final static int TYPE_FLYME = 1;
    public final static int TYPE_M = 3;//6.0

    @IntDef({TYPE_MIUI,
            TYPE_FLYME,
            TYPE_M})
    @Retention(RetentionPolicy.SOURCE)
    @interface ViewType {
    }

    /**
     * 修改状态栏颜色，支持4.4以上版本
     *
     * @param colorId 颜色
     */
    public static void setStatusBarColor(Activity activity, int colorId) {

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = activity.getWindow();
            window.setStatusBarColor(colorId);
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            //使用SystemBarTintManager,需要先将状态栏设置为透明
            setTranslucentStatus(activity);
            SystemBarTintManager systemBarTintManager = new SystemBarTintManager(activity);
            systemBarTintManager.setStatusBarTintEnabled(true);//显示状态栏
            systemBarTintManager.setStatusBarTintColor(colorId);//设置状态栏颜色
        }
    }

    /**
     * 设置状态栏透明
     */
    @TargetApi(19)
    public static void setTranslucentStatus(Activity activity) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            //5.x开始需要把颜色设置透明，否则导航栏会呈现系统默认的浅灰色
            Window window = activity.getWindow();
            View decorView = window.getDecorView();
            //两个 flag 要结合使用，表示让应用的主体内容占用系统状态栏的空间
            int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
            decorView.setSystemUiVisibility(option);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
            //导航栏颜色也可以正常设置
            //window.setNavigationBarColor(Color.TRANSPARENT);
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            Window window = activity.getWindow();
            WindowManager.LayoutParams attributes = window.getAttributes();
            int flagTranslucentStatus = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
            attributes.flags |= flagTranslucentStatus;
            //int flagTranslucentNavigation = WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION;
            //attributes.flags |= flagTranslucentNavigation;
            window.setAttributes(attributes);
        }
    }


    /**
     *  代码实现android:fitsSystemWindows
     *
     * @param activity
     */
    public static void setRootViewFitsSystemWindows(Activity activity, boolean fitSystemWindows) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            ViewGroup winContent = (ViewGroup) activity.findViewById(android.R.id.content);
            if (winContent.getChildCount() > 0) {
                ViewGroup rootView = (ViewGroup) winContent.getChildAt(0);
                if (rootView != null) {
                    rootView.setFitsSystemWindows(fitSystemWindows);
                }
            }
        }

    }


    /**
     * 设置状态栏深色浅色切换
     */
    public static boolean setStatusBarDarkTheme(Activity activity, boolean dark) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                setStatusBarFontIconDark(activity, TYPE_M, dark);
            } else if (OSUtils.isMiui()) {
                setStatusBarFontIconDark(activity, TYPE_MIUI, dark);
            } else if (OSUtils.isFlyme()) {
                setStatusBarFontIconDark(activity, TYPE_FLYME, dark);
            } else {//其他情况
                return false;
            }

            return true;
        }
        return false;
    }

    /**
     * 设置 状态栏深色浅色切换
     */
    public static boolean setStatusBarFontIconDark(Activity activity, @ViewType int type,boolean dark) {
        switch (type) {
            case TYPE_MIUI:
                return setMiuiUI(activity, dark);
            case TYPE_FLYME:
                return setFlymeUI(activity, dark);
            case TYPE_M:
            default:
                return setCommonUI(activity,dark);
        }
    }

    //设置6.0 状态栏深色浅色切换
    public static boolean setCommonUI(Activity activity, boolean dark) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            View decorView = activity.getWindow().getDecorView();
            if (decorView != null) {
                int vis = decorView.getSystemUiVisibility();
                if (dark) {
                    vis |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
                } else {
                    vis &= ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
                }
                if (decorView.getSystemUiVisibility() != vis) {
                    decorView.setSystemUiVisibility(vis);
                }
                return true;
            }
        }
        return false;

    }

    //设置Flyme 状态栏深色浅色切换
    public static boolean setFlymeUI(Activity activity, boolean dark) {
        try {
            Window window = activity.getWindow();
            WindowManager.LayoutParams lp = window.getAttributes();
            Field darkFlag = WindowManager.LayoutParams.class.getDeclaredField("MEIZU_FLAG_DARK_STATUS_BAR_ICON");
            Field meizuFlags = WindowManager.LayoutParams.class.getDeclaredField("meizuFlags");
            darkFlag.setAccessible(true);
            meizuFlags.setAccessible(true);
            int bit = darkFlag.getInt(null);
            int value = meizuFlags.getInt(lp);
            if (dark) {
                value |= bit;
            } else {
                value &= ~bit;
            }
            meizuFlags.setInt(lp, value);
            window.setAttributes(lp);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    //设置MIUI 状态栏深色浅色切换
    public static boolean setMiuiUI(Activity activity, boolean dark) {
        try {
            Window window = activity.getWindow();
            Class<?> clazz = activity.getWindow().getClass();
            @SuppressLint("PrivateApi") Class<?> layoutParams = Class.forName("android.view.MiuiWindowManager$LayoutParams");
            Field field = layoutParams.getField("EXTRA_FLAG_STATUS_BAR_DARK_MODE");
            int darkModeFlag = field.getInt(layoutParams);
            Method extraFlagField = clazz.getDeclaredMethod("setExtraFlags", int.class, int.class);
            extraFlagField.setAccessible(true);
            if (dark) {    //状态栏亮色且黑色字体
                extraFlagField.invoke(window, darkModeFlag, darkModeFlag);
            } else {
                extraFlagField.invoke(window, 0, darkModeFlag);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }
    //获取状态栏高度
    public static int getStatusBarHeight(Context context) {
        int result = 0;
        int resourceId = context.getResources().getIdentifier(
                "status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            result = context.getResources().getDimensionPixelSize(resourceId);
        }
        return result;
    }
}

Rom类型判断的工具类：

import android.os.Build;
import android.text.TextUtils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class OSUtils {

    public static final String ROM_MIUI = "MIUI";
    public static final String ROM_EMUI = "EMUI";
    public static final String ROM_FLYME = "FLYME";
    public static final String ROM_OPPO = "OPPO";
    public static final String ROM_SMARTISAN = "SMARTISAN";
    public static final String ROM_VIVO = "VIVO";
    public static final String ROM_QIKU = "QIKU";

    private static final String KEY_VERSION_MIUI = "ro.miui.ui.version.name";
    private static final String KEY_VERSION_EMUI = "ro.build.version.emui";
    private static final String KEY_VERSION_OPPO = "ro.build.version.opporom";
    private static final String KEY_VERSION_SMARTISAN = "ro.smartisan.version";
    private static final String KEY_VERSION_VIVO = "ro.vivo.os.version";

    private static String sName;
    private static String sVersion;

    public static boolean isEmui() {
        return check(ROM_EMUI);
    }

    public static boolean isMiui() {
        return check(ROM_MIUI);
    }

    public static boolean isVivo() {
        return check(ROM_VIVO);
    }

    public static boolean isOppo() {
        return check(ROM_OPPO);
    }

    public static boolean isFlyme() {
        return check(ROM_FLYME);
    }

    public static boolean is360() {
        return check(ROM_QIKU) || check("360");
    }

    public static boolean isSmartisan() {
        return check(ROM_SMARTISAN);
    }

    public static String getName() {
        if (sName == null) {
            check("");
        }
        return sName;
    }

    public static String getVersion() {
        if (sVersion == null) {
            check("");
        }
        return sVersion;
    }

    public static boolean check(String rom) {
        if (sName != null) {
            return sName.equals(rom);
        }

        if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_MIUI))) {
            sName = ROM_MIUI;
        } else if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_EMUI))) {
            sName = ROM_EMUI;
        } else if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_OPPO))) {
            sName = ROM_OPPO;
        } else if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_VIVO))) {
            sName = ROM_VIVO;
        } else if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_SMARTISAN))) {
            sName = ROM_SMARTISAN;
        } else {
            sVersion = Build.DISPLAY;
            if (sVersion.toUpperCase().contains(ROM_FLYME)) {
                sName = ROM_FLYME;
            } else {
                sVersion = Build.UNKNOWN;
                sName = Build.MANUFACTURER.toUpperCase();
            }
        }
        return sName.equals(rom);
    }

    public static String getProp(String name) {
        String line = null;
        BufferedReader input = null;
        try {
            Process p = Runtime.getRuntime().exec("getprop " + name);
            input = new BufferedReader(new InputStreamReader(p.getInputStream()), 1024);
            line = input.readLine();
            input.close();
        } catch (IOException ex) {
            return null;
        } finally {
            if (input != null) {
                try {
                    input.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return line;
    }
}

或者通过这篇文章也能 完美解决https://blog.csdn.net/u014418171/article/details/81223681