Android 沉浸式状态栏（全透明状态栏）全适配方案。解决透明状态栏后依然有半透明灰色问题。

可以适配Android 11的沉浸式。状态栏完全透明，没有半透明灰色。

package com.iflytek.jzapp.utils.immersive;

import android.app.Activity;
import android.graphics.Color;
import android.os.Build;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.FrameLayout;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.view.ViewCompat;


/**
 * @author：luck
 * @data：2018/3/28 下午1:00
 * @描述: 沉浸式相关
 */

public class ImmersiveManager {

    /**
     * 注意：使用最好将布局xml 跟布局加入    android:fitsSystemWindows="true" ，这样可以避免有些手机上布局顶边的问题
     *
     * @param baseActivity        这个会留出来状态栏和底栏的空白
     * @param statusBarColor      状态栏的颜色
     * @param navigationBarColor  导航栏的颜色
     * @param isDarkStatusBarIcon 状态栏图标颜色是否是深（黑）色  false状态栏图标颜色为白色
     */
    public static void immersiveAboveAPI23(AppCompatActivity baseActivity, int statusBarColor, int navigationBarColor, boolean isDarkStatusBarIcon) {
        immersiveAboveAPI23(baseActivity, false, false, statusBarColor, navigationBarColor, isDarkStatusBarIcon);
    }


    /**
     * @param baseActivity
     * @param statusBarColor     状态栏的颜色
     * @param navigationBarColor 导航栏的颜色
     */
    public static void immersiveAboveAPI23(AppCompatActivity baseActivity, boolean isMarginStatusBar
            , boolean isMarginNavigationBar, int statusBarColor, int navigationBarColor, boolean isDarkStatusBarIcon) {
        try {
            Window window = baseActivity.getWindow();
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
                //4.4版本及以上 5.0版本及以下
                if (isDarkStatusBarIcon) {
                    initBarBelowLOLLIPOP(baseActivity);
                } else {
                    window.setFlags(
                            WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS,
                            WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
                }
            } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                if (isMarginStatusBar && isMarginNavigationBar) {
                    //5.0版本及以上
                    window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                            | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
                    LightStatusBarUtils.setLightStatusBar(baseActivity, true
                            , true
                            , statusBarColor == Color.TRANSPARENT
                            , isDarkStatusBarIcon);

                    window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
                } else if (!isMarginStatusBar && !isMarginNavigationBar) {
                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M && isDarkStatusBarIcon) {
                        initBarBelowLOLLIPOP(baseActivity);
                    } else {
                        window.requestFeature(Window.FEATURE_NO_TITLE);
                        window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                                | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);

                        LightStatusBarUtils.setLightStatusBar(baseActivity, false
                                , false
                                , statusBarColor == Color.TRANSPARENT
                                , isDarkStatusBarIcon);

                        window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
                    }
                } else if (!isMarginStatusBar) {
                    window.requestFeature(Window.FEATURE_NO_TITLE);
                    window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                            | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
                    LightStatusBarUtils.setLightStatusBar(baseActivity, false
                            , true
                            , statusBarColor == Color.TRANSPARENT
                            , isDarkStatusBarIcon);

                    window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
                } else {
                    //留出来状态栏 不留出来导航栏 没找到办法。。
                    return;
                }

                window.setStatusBarColor(statusBarColor);
                window.setNavigationBarColor(navigationBarColor);

            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    private final static String TAG_FAKE_STATUS_BAR_VIEW = "TAG_FAKE_STATUS_BAR_VIEW";
    private final static String TAG_MARGIN_ADDED = "TAG_MARGIN_ADDED";
    private final static String TAG_NAVIGATION_BAR_VIEW = "TAG_NAVIGATION_BAR_VIEW";

    /**
     * 透明状态栏
     *
     * @param activity
     * @param isDarkStatusBarBlack
     */
    public static void translucentStatusBar(Activity activity, boolean isDarkStatusBarBlack) {
        Window window = activity.getWindow();
        //添加Flag把状态栏设为可绘制模式
        window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
        //如果为全透明模式，取消设置Window半透明的Flag
        window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        //设置状态栏为透明
        window.setStatusBarColor(Color.TRANSPARENT);
        View decor = window.getDecorView();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            //设置window的状态栏不可见,且状态栏字体是白色
            if (isDarkStatusBarBlack) {
                decor.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR | View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
            } else {
                window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
            }
        } else {
            //初始化5.0以下，4.4以上沉浸式
            if (isDarkStatusBarBlack) {
                initBarBelowLOLLIPOP(activity);
            } else {
                window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
            }
        }
        //view不根据系统窗口来调整自己的布局
        ViewGroup mContentView = window.findViewById(Window.ID_ANDROID_CONTENT);
        View mChildView = mContentView.getChildAt(0);
        if (mChildView != null) {
            mChildView.setFitsSystemWindows(false);
            ViewCompat.requestApplyInsets(mChildView);
        }
    }

    private static void initBarBelowLOLLIPOP(Activity activity) {
        //透明状态栏
        Window mWindow = activity.getWindow();
        mWindow.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        //创建一个假的状态栏
        setupStatusBarView(activity);
        //判断是否存在导航栏，是否禁止设置导航栏
        if (DensityUtil.isNavBarVisible(activity)) {
            //透明导航栏，设置这个，如果有导航栏，底部布局会被导航栏遮住
            mWindow.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            //创建一个假的导航栏
            setupNavBarView(activity);
        }
    }

    private static void setupStatusBarView(Activity activity) {
        Window mWindow = activity.getWindow();
        View statusBarView = mWindow.getDecorView().findViewWithTag(TAG_FAKE_STATUS_BAR_VIEW);
        if (statusBarView == null) {
            statusBarView = new View(activity);
            FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,
                    DensityUtil.getStatusBarHeight(activity));
            params.gravity = Gravity.TOP;
            statusBarView.setLayoutParams(params);
            statusBarView.setVisibility(View.VISIBLE);
            statusBarView.setTag(TAG_MARGIN_ADDED);
            ((ViewGroup) mWindow.getDecorView()).addView(statusBarView);
        }
        statusBarView.setBackgroundColor(Color.TRANSPARENT);
    }

    private static void setupNavBarView(Activity activity) {
        Window window = activity.getWindow();
        View navigationBarView = window.getDecorView().findViewWithTag(TAG_NAVIGATION_BAR_VIEW);
        if (navigationBarView == null) {
            navigationBarView = new View(activity);
            navigationBarView.setTag(TAG_NAVIGATION_BAR_VIEW);
            ((ViewGroup) window.getDecorView()).addView(navigationBarView);
        }

        FrameLayout.LayoutParams params;
        if (DensityUtil.isNavigationAtBottom(activity)) {
            params = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, DensityUtil.getNavigationBarHeight(activity));
            params.gravity = Gravity.BOTTOM;
        } else {
            params = new FrameLayout.LayoutParams(DensityUtil.getNavigationBarWidth(activity), FrameLayout.LayoutParams.MATCH_PARENT);
            params.gravity = Gravity.END;
        }
        navigationBarView.setLayoutParams(params);
        navigationBarView.setBackgroundColor(Color.TRANSPARENT);
        navigationBarView.setVisibility(View.VISIBLE);
    }
}

package com.iflytek.jzapp.utils.immersive;

import android.annotation.TargetApi;
import android.app.Activity;
import android.os.Build;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;

import java.lang.reflect.Field;
import java.lang.reflect.Method;

/**
 * @author：luck
 * @data：2018/3/28 下午1:01
 * @描述: 沉浸式
 */

public class LightStatusBarUtils {
    public static void setLightStatusBarAboveAPI23(Activity activity, boolean isMarginStatusBar
            , boolean isMarginNavigationBar, boolean isTransStatusBar, boolean dark) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            setLightStatusBar(activity, isMarginStatusBar, isMarginNavigationBar, isTransStatusBar, dark);
        }
    }

    public static void setLightStatusBar(Activity activity, boolean dark) {
        setLightStatusBar(activity, false, false, false, dark);
    }

    public static void setLightStatusBar(Activity activity, boolean isMarginStatusBar
            , boolean isMarginNavigationBar, boolean isTransStatusBar, boolean dark) {
        switch (RomUtils.getLightStatausBarAvailableRomType()) {
            case RomUtils.AvailableRomType.MIUI:
                if (RomUtils.getMIUIVersionCode() >= 7) {
                    setAndroidNativeLightStatusBar(activity, isMarginStatusBar, isMarginNavigationBar, isTransStatusBar, dark);
                } else {
                    setMIUILightStatusBar(activity, isMarginStatusBar, isMarginNavigationBar, isTransStatusBar, dark);
                }
                break;

            case RomUtils.AvailableRomType.FLYME:
                setFlymeLightStatusBar(activity, isMarginStatusBar, isMarginNavigationBar, isTransStatusBar, dark);
                break;

            case RomUtils.AvailableRomType.ANDROID_NATIVE:
                setAndroidNativeLightStatusBar(activity, isMarginStatusBar, isMarginNavigationBar, isTransStatusBar, dark);
                break;

            case RomUtils.AvailableRomType.NA:
                // N/A do nothing
                break;
        }
    }


    private static boolean setMIUILightStatusBar(Activity activity, boolean isMarginStatusBar
            , boolean isMarginNavigationBar, boolean isTransStatusBar, boolean darkmode) {
        initStatusBarStyle(activity, isMarginStatusBar, isMarginNavigationBar);

        Class<? extends Window> 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);
            return true;
        } catch (Exception e) {
            setAndroidNativeLightStatusBar(activity, isMarginStatusBar, isMarginNavigationBar, isTransStatusBar, darkmode);
        }
        return false;
    }

    private static boolean setFlymeLightStatusBar(Activity activity, boolean isMarginStatusBar
            , boolean isMarginNavigationBar, boolean isTransStatusBar, boolean dark) {
        boolean result = false;
        if (activity != null) {
            initStatusBarStyle(activity, isMarginStatusBar, isMarginNavigationBar);
            try {
                WindowManager.LayoutParams lp = activity.getWindow().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);
                activity.getWindow().setAttributes(lp);
                result = true;

                if (RomUtils.getFlymeVersion() >= 7) {
                    setAndroidNativeLightStatusBar(activity, isMarginStatusBar, isMarginNavigationBar, isTransStatusBar, dark);
                }
            } catch (Exception e) {
                setAndroidNativeLightStatusBar(activity, isMarginStatusBar, isMarginNavigationBar, isTransStatusBar, dark);
            }
        }
        return result;
    }

    @TargetApi(11)
    private static void setAndroidNativeLightStatusBar(Activity activity, boolean isMarginStatusBar
            , boolean isMarginNavigationBar, boolean isTransStatusBar, boolean isDarkStatusBarIcon) {

        try {
            if (isTransStatusBar) {
                Window window = activity.getWindow();
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    if (isMarginStatusBar && isMarginNavigationBar) {
                        //5.0版本及以上
                        if (isDarkStatusBarIcon && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                                    | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
                        } else {
                            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
                        }
                    } else if (!isMarginStatusBar && !isMarginNavigationBar) {

                        if (isDarkStatusBarIcon && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
//                                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                                    | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
                        } else {
                            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
//                                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
                        }


                    } else if (!isMarginStatusBar && isMarginNavigationBar) {
                        if (isDarkStatusBarIcon && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                                    | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
                        } else {
                            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
                        }


                    } else {
                        //留出来状态栏 不留出来导航栏 没找到办法。。
                        return;
                    }
                }
            } else {
                View decor = activity.getWindow().getDecorView();
                if (isDarkStatusBarIcon && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    decor.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
                } else {
                    // We want to change tint color to white again.
                    // You can also record the flags in advance so that you can turn UI back completely if
                    // you have set other flags before, such as translucent or full screen.
                    decor.setSystemUiVisibility(0);
                }
            }
        } catch (Exception e) {
        }
    }

    private static void initStatusBarStyle(Activity activity, boolean isMarginStatusBar
            , boolean isMarginNavigationBar) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            if (isMarginStatusBar && isMarginNavigationBar) {
                activity.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            } else if (!isMarginStatusBar && !isMarginNavigationBar) {
                activity.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            } else if (!isMarginStatusBar && isMarginNavigationBar) {

                activity.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            } else {
                //留出来状态栏 不留出来导航栏 没找到办法。。
            }
        }

    }
}

package com.iflytek.jzapp.utils.immersive;

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.graphics.Point;
import android.os.Build;
import android.provider.Settings;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;

/**
 * @author：luck
 * @date：2021/11/17 11:48 上午
 * @describe：DensityUtil
 */
public class DensityUtil {
    /**
     * 获取屏幕真实宽度
     *
     * @param context
     * @return
     */
    public static int getRealScreenWidth(Context context) {
        WindowManager wm = (WindowManager) context.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
        Point point = new Point();
        wm.getDefaultDisplay().getRealSize(point);
        return point.x;
    }

    /**
     * 获取屏幕真实高度
     *
     * @param context
     * @return
     */
    public static int getRealScreenHeight(Context context) {
        WindowManager wm = (WindowManager) context.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
        Point point = new Point();
        wm.getDefaultDisplay().getRealSize(point);
        return point.y;
    }


    /**
     * 获取屏幕高度(不包含状态栏高度)
     *
     * @param context
     * @return
     */
    public static int getScreenHeight(Context context) {
        return getRealScreenHeight(context) - getStatusNavigationBarHeight(context);
    }

    /**
     * 获取状态栏和导航栏高度
     *
     * @param context
     * @return
     */
    private static int getStatusNavigationBarHeight(Context context) {
        if (isNavBarVisible(context)) {
            return getStatusBarHeight(context) + getNavigationBarHeight(context);
        } else {
            return getStatusBarHeight(context);
        }
    }

    /**
     * 获取状态栏高度
     */
    public static int getStatusBarHeight(Context context) {
        int result = 0;
        int resourceId = Resources.getSystem().getIdentifier("status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            result = context.getResources().getDimensionPixelSize(resourceId);
        }
        return result == 0 ? dip2px(context, 26) : result;
    }


    /**
     * Return whether the navigation bar visible.
     * <p>Call it in onWindowFocusChanged will get right result.</p>
     *
     * @param
     * @return {@code true}: yes<br>{@code false}: no
     */
    public static boolean isNavBarVisible(Context context) {
        boolean isVisible = false;
        if (!(context instanceof Activity)) {
            return false;
        }
        Activity activity = (Activity) context;
        Window window = activity.getWindow();
        ViewGroup decorView = (ViewGroup) window.getDecorView();
        for (int i = 0, count = decorView.getChildCount(); i < count; i++) {
            final View child = decorView.getChildAt(i);
            final int id = child.getId();
            if (id != View.NO_ID) {
                String resourceEntryName = getResNameById(activity, id);
                if ("navigationBarBackground".equals(resourceEntryName)
                        && child.getVisibility() == View.VISIBLE) {
                    isVisible = true;
                    break;
                }
            }
        }
        if (isVisible) {
            // 对于三星手机，android10以下非OneUI2的版本，比如 s8，note8 等设备上，
            // 导航栏显示存在bug："当用户隐藏导航栏时显示输入法的时候导航栏会跟随显示"，会导致隐藏输入法之后判断错误
            // 这个问题在 OneUI 2 & android 10 版本已修复
            if (RomUtils.isSamsung()
                    && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1
                    && Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
                try {
                    return Settings.Global.getInt(activity.getContentResolver(), "navigationbar_hide_bar_enabled") == 0;
                } catch (Exception ignore) {
                }
            }

            int visibility = decorView.getSystemUiVisibility();
            isVisible = (visibility & View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0;
        }

        return isVisible;
    }

    /**
     * getResNameById
     *
     * @param context
     * @param id
     * @return
     */
    private static String getResNameById(Context context, int id) {
        try {
            return context.getResources().getResourceEntryName(id);
        } catch (Exception ignore) {
            return "";
        }
    }


    /**
     * 获取导航栏宽度
     *
     * @param context
     * @return
     */
    @TargetApi(14)
    public static int getNavigationBarWidth(Context context) {
        int result = 0;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
            if (isNavBarVisible(context)) {
                return getInternalDimensionSize(context, "navigation_bar_width");
            }
        }
        return result;
    }

    /**
     * 获取导航栏高度
     *
     * @param context
     * @return
     */
    @TargetApi(14)
    public static int getNavigationBarHeight(Context context) {
        int result = 0;
        Resources res = context.getResources();
        boolean mInPortrait = (res.getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT);
        if (isNavBarVisible(context)) {
            String key;
            if (mInPortrait) {
                key = "navigation_bar_height";
            } else {
                key = "navigation_bar_height_landscape";
            }
            return getInternalDimensionSize(context, key);
        }
        return result;
    }


    private static int getInternalDimensionSize(Context context, String key) {
        int result = 0;
        try {
            int resourceId = Resources.getSystem().getIdentifier(key, "dimen", "android");
            if (resourceId > 0) {
                int sizeOne = context.getResources().getDimensionPixelSize(resourceId);
                int sizeTwo = Resources.getSystem().getDimensionPixelSize(resourceId);

                if (sizeTwo >= sizeOne) {
                    return sizeTwo;
                } else {
                    float densityOne = context.getResources().getDisplayMetrics().density;
                    float densityTwo = Resources.getSystem().getDisplayMetrics().density;
                    float f = sizeOne * densityTwo / densityOne;
                    return (int) ((f >= 0) ? (f + 0.5f) : (f - 0.5f));
                }
            }
        } catch (Resources.NotFoundException ignored) {
            return 0;
        }
        return result;
    }

    @SuppressLint("NewApi")
    private static 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);
    }

    public static boolean isNavigationAtBottom(Activity activity) {
        Resources res = activity.getResources();
        boolean mInPortrait = (res.getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT);
        return (getSmallestWidthDp(activity) >= 600 || mInPortrait);
    }

    /**
     * dp2px
     */
    public static int dip2px(Context context, float dpValue) {
        final float scale = context.getApplicationContext().getResources().getDisplayMetrics().density;
        return (int) (dpValue * scale + 0.5f);
    }
}

package com.iflytek.jzapp.utils.immersive;

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


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.regex.Pattern;

/**
 * @author：luck
 * @data：2018/3/28 下午1:02
 * @描述: Rom版本管理
 */

public class RomUtils {

    private static final String[] ROM_SAMSUNG = {"samsung"};
    private final static String UNKNOWN = "unknown";

    public static class AvailableRomType {
        public static final int MIUI = 1;
        public static final int FLYME = 2;
        public static final int ANDROID_NATIVE = 3;
        public static final int NA = 4;
    }


    private static Integer romType;

    public static int getLightStatausBarAvailableRomType() {
        if (romType != null) {
            return romType;
        }

        if (isMIUIV6OrAbove()) {
            romType = AvailableRomType.MIUI;
            return romType;
        }

        if (isFlymeV4OrAbove()) {
            romType = AvailableRomType.FLYME;
            return romType;
        }

        if (isAndroid5OrAbove()) {
            romType = AvailableRomType.ANDROID_NATIVE;
            return romType;
        }

        romType = AvailableRomType.NA;
        return romType;
    }

    //Flyme V4的displayId格式为 [Flyme OS 4.x.x.xA]
    //Flyme V5的displayId格式为 [Flyme 5.x.x.x beta]
    private static boolean isFlymeV4OrAbove() {
        return (getFlymeVersion() >= 4);
    }


    //Flyme V4的displayId格式为 [Flyme OS 4.x.x.xA]
    //Flyme V5的displayId格式为 [Flyme 5.x.x.x beta]
    public static int getFlymeVersion() {
        String displayId = Build.DISPLAY;
        if (!TextUtils.isEmpty(displayId) && displayId.contains("Flyme")) {
            displayId = displayId.replaceAll("Flyme", "");
            displayId = displayId.replaceAll("OS", "");
            displayId = displayId.replaceAll(" ", "");


            String version = displayId.substring(0, 1);

            return stringToInt(version);
        }
        return 0;
    }

    //MIUI V6对应的versionCode是4
    //MIUI V7对应的versionCode是5
    private static boolean isMIUIV6OrAbove() {
        String miuiVersionCodeStr = getSystemProperty();
        if (!TextUtils.isEmpty(miuiVersionCodeStr)) {
            try {
                int miuiVersionCode = ValueOf.toInt(miuiVersionCodeStr);
                if (miuiVersionCode >= 4) {
                    return true;
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return false;
    }


    public static int getMIUIVersionCode() {
        String miuiVersionCodeStr = getSystemProperty();
        int miuiVersionCode = 0;
        if (!TextUtils.isEmpty(miuiVersionCodeStr)) {
            try {
                miuiVersionCode = ValueOf.toInt(miuiVersionCodeStr);
                return miuiVersionCode;
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return miuiVersionCode;
    }


    //Android Api 23以上
    private static boolean isAndroid5OrAbove() {
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
    }


    private static String getSystemProperty() {
        String line;
        BufferedReader input = null;
        try {
            Process p = Runtime.getRuntime().exec("getprop " + "ro.miui.ui.version.code");
            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;
    }

    /**
     * Return whether the rom is made by samsung.
     *
     * @return {@code true}: yes<br>{@code false}: no
     */
    public static boolean isSamsung() {
        final String brand = getBrand();
        final String manufacturer = getManufacturer();
        return isRightRom(brand, manufacturer, ROM_SAMSUNG);
    }

    private static boolean isRightRom(final String brand, final String manufacturer, final String... names) {
        for (String name : names) {
            if (brand.contains(name) || manufacturer.contains(name)) {
                return true;
            }
        }
        return false;
    }

    private static String getManufacturer() {
        try {
            String manufacturer = Build.MANUFACTURER;
            if (!TextUtils.isEmpty(manufacturer)) {
                return manufacturer.toLowerCase();
            }
        } catch (Throwable ignore) {/**/}
        return UNKNOWN;
    }

    private static String getBrand() {
        try {
            String brand = Build.BRAND;
            if (!TextUtils.isEmpty(brand)) {
                return brand.toLowerCase();
            }
        } catch (Throwable ignore) {/**/}
        return UNKNOWN;
    }

    /**
     * 匹配数值
     *
     * @param str
     * @return
     */
    public static int stringToInt(String str) {
        Pattern pattern = Pattern.compile("^[-\\+]?[\\d]+$");
        return pattern.matcher(str).matches() ? ValueOf.toInt(str) : 0;
    }

}

package com.iflytek.jzapp.utils.immersive;

/**
 * @author：luck
 * @date：2019-11-12 14:27
 * @describe：类型转换工具类
 */
public class ValueOf {
    public static String toString(Object o) {
        String value = "";
        try {
            value = o.toString();
        } catch (Exception e) {
        }

        return value;
    }


    public static double toDouble(Object o) {

        return toDouble(o, 0);
    }

    public static double toDouble(Object o, int defaultValue) {
        if (o == null) {
            return defaultValue;
        }

        double value;
        try {
            value = Double.parseDouble(o.toString().trim());
        } catch (Exception e) {
            value = defaultValue;
        }

        return value;
    }

    public static long toLong(Object o, long defaultValue) {
        if (o == null) {
            return defaultValue;
        }
        long value = 0;
        try {
            String s = o.toString().trim();
            if (s.contains(".")) {
                value = Long.parseLong(s.substring(0, s.lastIndexOf(".")));
            } else {
                value = Long.parseLong(s);
            }
        } catch (Exception e) {
            value = defaultValue;
        }


        return value;
    }

    public static long toLong(Object o) {
        return toLong(o, 0);
    }


    public static float toFloat(Object o, long defaultValue) {
        if (o == null) {
            return defaultValue;
        }
        float value = 0;
        try {
            String s = o.toString().trim();
            value = Float.parseFloat(s);
        } catch (Exception e) {
            value = defaultValue;
        }


        return value;
    }

    public static float toFloat(Object o) {
        return toFloat(o, 0);
    }


    public static int toInt(Object o, int defaultValue) {
        if (o == null) {
            return defaultValue;
        }
        int value;
        try {
            String s = o.toString().trim();
            if (s.contains(".")) {
                value = Integer.parseInt(s.substring(0, s.lastIndexOf(".")));
            } else {
                value = Integer.parseInt(s);
            }
        } catch (Exception e) {
            value = defaultValue;
        }

        return value;
    }

    public static int toInt(Object o) {
        return toInt(o, 0);
    }

    public static boolean toBoolean(Object o) {
        return toBoolean(o, false);

    }


    public static boolean toBoolean(Object o, boolean defaultValue) {
        if (o == null) {
            return false;
        }
        boolean value;
        try {
            String s = o.toString().trim();
            if ("false".equals(s.trim())) {
                value =  false;
            } else {
                value =  true;
            }
        } catch (Exception e) {
            value = defaultValue;
        }

        return value;
    }


    public static <T> T to(Object o, T defaultValue) {
        if (o == null) {
            return defaultValue;
        }
        T value = (T)o;
        return (T) value;
    }
}