本文不是原創  是借鑑了其他大神的程式碼，我只是轉發收藏一下，方便自己學習記錄

原文地址：https://blog.csdn.net/xiaoshuxgh/article/details/80253196

 先看下我沒解決的效果   全白的

使用大神的程式碼後  狀態列就能看見了  就解決了

程式碼如下

public class StatusBarUtils {

    // 設定狀態列透明與字型顏色
    public static void setStatusBarTranslucent(Activity activity, boolean isLightStatusBar) {
        if (activity == null) return;
        Window window = activity.getWindow();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
            window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
        }

        if (isXiaomi()) {
            setXiaomiStatusBar(window, isLightStatusBar);
        } else if (isMeizu()) {
            setMeizuStatusBar(window, isLightStatusBar);
        }
    }

    // 是否是小米手機
    public static boolean isXiaomi() {
        return "Xiaomi".equals(Build.MANUFACTURER);
    }

    // 設定小米狀態列
    public static void setXiaomiStatusBar(Window window, boolean isLightStatusBar) {
        Class<? extends Window> clazz = window.getClass();
        try {
            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.getMethod("setExtraFlags", int.class, int.class);
            extraFlagField.invoke(window, isLightStatusBar ? darkModeFlag : 0, darkModeFlag);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    // 是否是魅族手機
    public static boolean isMeizu() {
        try {
            Method method = Build.class.getMethod("hasSmartBar");
            return method != null;
        } catch (NoSuchMethodException e) {
        }
        return false;
    }

    // 設定魅族狀態列
    public static void setMeizuStatusBar(Window window, boolean isLightStatusBar) {
        WindowManager.LayoutParams params = window.getAttributes();
        try {
            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(params);
            if (isLightStatusBar) {
                value |= bit;
            } else {
                value &= ~bit;
            }
            meizuFlags.setInt(params, value);
            window.setAttributes(params);
            darkFlag.setAccessible(false);
            meizuFlags.setAccessible(false);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
 

然後使用就是在每一個Activity啟動的時候呼叫以下程式碼 就解決小米和魅族的問題了

StatusBarUtils.setStatusBarTranslucent(this,true);

再次宣告 本文不是原創，原文地址在最頂部