Android状态栏的沉浸（沉浸失效）、透明、修改背景颜色以及修改状态栏字体颜色

状态栏的沉浸

这里我介绍的是我比较常用的一种方式，也是网上很多都有介绍的，不多说直接上代码

/**
    * 这个方法是控制布局控件是否顶在状态栏上（fitSystemWindows=true,避免布局控件顶在状态栏上）（itSystemWindows=true,布局控件顶在状态栏上）
     */
    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);
                }
            }
        }
    }

确保页面布局把状态栏的位置占据以后，再设置状态栏的背景色为透明就ok了，设置状态栏透明的方法如下：

 /**
     * 设置状态栏为透明
     * @param activity
     */
    @TargetApi(19)
    public static void setLucencyStatus(Activity activity) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = activity.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);

        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            Window window = activity.getWindow();
            window.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS,
                    WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }
    }

到这里就简单的实现状态栏的沉浸和透明了，因为一般开发过程中，经常会遇到需要设置沉浸效果。但是只有Android版本4.4以后才支持状态栏沉浸。

修改状态栏背景颜色、字体颜色

首先涉及到不同品牌手机的生态系统，所以需要做不同的适配，这里判断的工具类也是我从网上找的，我看好多人都用了，我这里也贴一下，如有侵权，请联系我，我立马删除！！！

import android.os.Environment;
import android.text.TextUtils;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

public class OSUtil {
    //MIUI标识
    private static final String KEY_MIUI_VERSION_CODE = "ro.miui.ui.version.code";
    private static final String KEY_MIUI_VERSION_NAME = "ro.miui.ui.version.name";
    private static final String KEY_MIUI_INTERNAL_STORAGE = "ro.miui.internal.storage";

    //EMUI标识
    private static final String KEY_EMUI_VERSION_CODE = "ro.build.version.emui";
    private static final String KEY_EMUI_API_LEVEL = "ro.build.hw_emui_api_level";
    private static final String KEY_EMUI_CONFIG_HW_SYS_VERSION = "ro.confg.hw_systemversion";

    //Flyme标识
    private static final String KEY_FLYME_ID_FALG_KEY = "ro.build.display.id";
    private static final String KEY_FLYME_ID_FALG_VALUE_KEYWORD = "Flyme";
    private static final String KEY_FLYME_ICON_FALG = "persist.sys.use.flyme.icon";
    private static final String KEY_FLYME_SETUP_FALG = "ro.meizu.setupwizard.flyme";
    private static final String KEY_FLYME_PUBLISH_FALG = "ro.flyme.published";

    /**
     * 是否是Flyme系统
     * @return
     */
    public static boolean isFlyme() {
        if(isPropertiesExist(KEY_FLYME_ICON_FALG, KEY_FLYME_SETUP_FALG, KEY_FLYME_PUBLISH_FALG)) {
            return true;
        }
        try {
            BuildProperties buildProperties = BuildProperties.newInstance();
            if(buildProperties.containsKey(KEY_FLYME_ID_FALG_KEY)) {
                String romName = buildProperties.getProperty(KEY_FLYME_ID_FALG_KEY);
                if (!TextUtils.isEmpty(romName) && romName.contains(KEY_FLYME_ID_FALG_VALUE_KEYWORD)) {
                    return true;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return false;
    }

    /**
     * 是否是EMUI系统
     * @return
     */
    public static boolean isEMUI() {
        return isPropertiesExist(KEY_EMUI_VERSION_CODE, KEY_EMUI_API_LEVEL,
                KEY_EMUI_CONFIG_HW_SYS_VERSION);
    }

    /**
     * 是否是MIUI系统
     * @return
     */
    public static boolean isMIUI() {
        return isPropertiesExist(KEY_MIUI_VERSION_CODE, KEY_MIUI_VERSION_NAME,
                KEY_MIUI_INTERNAL_STORAGE);
    }

    private static boolean isPropertiesExist(String... keys) {
        if (keys == null || keys.length == 0) {
            return false;
        }
        try {
            BuildProperties properties = BuildProperties.newInstance();
            for (String key : keys) {
                String value = properties.getProperty(key);
                if (value != null)
                    return true;
            }
            return false;
        } catch (IOException e) {
            return false;
        }
    }

    private static final class BuildProperties {

        private final Properties properties;

        private BuildProperties() throws IOException {
            properties = new Properties();
            // 读取系统配置信息build.prop类
            properties.load(new FileInputStream(new File(Environment.getRootDirectory(), "build" +
                    ".prop")));
        }

        public boolean containsKey(final Object key) {
            return properties.containsKey(key);
        }

        public boolean containsValue(final Object value) {
            return properties.containsValue(value);
        }

        public Set> entrySet() {
            return properties.entrySet();
        }

        public String getProperty(final String name) {
            return properties.getProperty(name);
        }

        public String getProperty(final String name, final String defaultValue) {
            return properties.getProperty(name, defaultValue);
        }

        public boolean isEmpty() {
            return properties.isEmpty();
        }

        public Enumeration