给SystemUI 状态栏设置图标黑名单

方法一、Android 系统UI：状态栏屏蔽特定图标不显示

在Android设备上，状态栏是用户界面的重要组成部分。它包含了各种系统图标，如电池、信号强度、时间等。有时候，我们可能希望屏蔽某个特定的图标，使其在状态栏中不显示。本文将详细介绍如何通过修改代码来实现这一目标。

首先，我们需要创建一个自定义的 Android 应用程序，并在其中修改 SystemUI 的源代码。以下是一些关键步骤，供你参考：

步骤 1：创建一个新的 Android 项目

        首先，在 Android 开发环境中创建一个新的 Android 项目。你可以使用 Android Studio 或其他适合的开发工具。

步骤 2：导入 SystemUI 源代码 

        在项目结构中导入 SystemUI 的源代码。SystemUI 是 Android 系统的一部分，它负责管理状态栏和其他系统UI元素。

步骤 3：定位到状态栏图标布局

在 SystemUI 源代码中，你需要找到负责状态栏图标布局的文件。该文件通常位于 frameworks/base/packages/SystemUI/res/layout 目录下，名为 status_bar.xml 或类似的名称。

步骤 4：查找要屏蔽的图标

在状态栏图标布局文件中，查找要屏蔽的图标。这些图标通常以  元素的形式存在，并且每个图标都有一个唯一的标识符。

步骤 5：修改图标的可见性

找到要屏蔽的图标后，你可以通过修改其可见性来使其不显示。在 Java 代码中，你可以使用 setVisibility() 方法来实现。以下是一些示例代码：

方法二、通过修改StatusBarlconController

        在Android的系统中， 状态栏的lcon管理控制是由StatusBarlconController.java 来负责的，所以我们可以阅读其源码，查找解决方案。类代码路径：

frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarIconController.java

1、下面来阅读StatusBarlconController源码

重点关注 getIconHideList

 注释解释  /** Reads the default hide list from config value unless hideListStr is provided. */

“除非提供了hideListStr，‌否则从配置值中读取默认的隐藏列表。‌”

static ArraySet getIconHideList(Context context, String hideListStr) {

.....

String[] hideList = hideListStr == null
            ? context.getResources().getStringArray(R.array.config_statusBarIconsToExclude)
            : hideListStr.split(",");

...

config_statusBarIconsToExclude默认配置

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

package com.android.systemui.statusbar.phone;

import static com.android.systemui.statusbar.phone.StatusBarIconHolder.TYPE_ICON;
import static com.android.systemui.statusbar.phone.StatusBarIconHolder.TYPE_MOBILE;
import static com.android.systemui.statusbar.phone.StatusBarIconHolder.TYPE_WIFI;

import android.annotation.Nullable;
import android.content.Context;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.ArraySet;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;

import androidx.annotation.VisibleForTesting;

import com.android.internal.statusbar.StatusBarIcon;
import com.android.systemui.Dependency;
import com.android.systemui.R;
import com.android.systemui.demomode.DemoModeCommandReceiver;
import com.android.systemui.plugins.DarkIconDispatcher;
import com.android.systemui.plugins.DarkIconDispatcher.DarkReceiver;
import com.android.systemui.statusbar.FeatureFlags;
import com.android.systemui.statusbar.StatusBarIconView;
import com.android.systemui.statusbar.StatusBarMobileView;
import com.android.systemui.statusbar.StatusBarWifiView;
import com.android.systemui.statusbar.StatusIconDisplayable;
import com.android.systemui.statusbar.phone.StatusBarSignalPolicy.CallIndicatorIconState;
import com.android.systemui.statusbar.phone.StatusBarSignalPolicy.MobileIconState;
import com.android.systemui.statusbar.phone.StatusBarSignalPolicy.WifiIconState;

import java.util.ArrayList;
import java.util.List;

public interface StatusBarIconController {

    /**
     * When an icon is added with TAG_PRIMARY, it will be treated as the primary icon
     * in that slot and not added as a sub slot.
     */
    int TAG_PRIMARY = 0;

    /** */
    void addIconGroup(IconManager iconManager);
    /** */
    void removeIconGroup(IconManager iconManager);
    /** */
    void setExternalIcon(String slot);
    /** */
    void setIcon(String slot, int resourceId, CharSequence contentDescription);
    /** */
    void setIcon(String slot, StatusBarIcon icon);
    /** */
    void setSignalIcon(String slot, WifiIconState state);
    /** */
    void setMobileIcons(String slot, List states);
    /**
     * Display the no calling & SMS icons.
     */
    void setCallStrengthIcons(String slot, List states);
    /**
     * Display the no calling & SMS icons.
     */
    void setNoCallingIcons(String slot, List states);
    public void setIconVisibility(String slot, boolean b);

    /**
     * Sets the live region mode for the icon
     * @see android.view.View#setAccessibilityLiveRegion(int)
     * @param slot Icon slot to set region for
     * @param accessibilityLiveRegion live region mode for the icon
     */
    void setIconAccessibilityLiveRegion(String slot, int accessibilityLiveRegion);

    /**
     * If you don't know what to pass for `tag`, either remove all icons for slot, or use
     * TAG_PRIMARY to refer to the first icon at a given slot.
     */
    void removeIcon(String slot, int tag);
    /** */
    void removeAllIconsForSlot(String slot);





    // TODO: See if we can rename this tunable name.
    String ICON_HIDE_LIST = "icon_blacklist";

    /** Reads the default hide list from config value unless hideListStr is provided. */
    static ArraySet getIconHideList(Context context, String hideListStr) {
        ArraySet ret = new ArraySet<>();
        String[] hideList = hideListStr == null
            ? context.getResources().getStringArray(R.array.config_statusBarIconsToExclude)
            : hideListStr.split(",");
        for (String slot : hideList) {
            if (!TextUtils.isEmpty(slot)) {
                ret.add(slot);
            }
        }
        return ret;
    }




    /**
     * Version of ViewGroup that observes state from the DarkIconDispatcher.
     */
    class DarkIconManager extends IconManager {
        private final DarkIconDispatcher mDarkIconDispatcher;
        private int mIconHPadding;

        public DarkIconManager(LinearLayout linearLayout, FeatureFlags featureFlags) {
            super(linearLayout, featureFlags);
            mIconHPadding = mContext.getResources().getDimensionPixelSize(
                    R.dimen.status_bar_icon_padding);
            mDarkIconDispatcher = Dependency.get(DarkIconDispatcher.class);
        }

        @Override
        protected void onIconAdded(int index, String slot, boolean blocked,
                StatusBarIconHolder holder) {
            StatusIconDisplayable view = addHolder(index, slot, blocked, holder);
            mDarkIconDispatcher.addDarkReceiver((DarkReceiver) view);
        }

        @Override
        protected LayoutParams onCreateLayoutParams() {
            LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                    ViewGroup.LayoutParams.WRAP_CONTENT, mIconSize);
            lp.setMargins(mIconHPadding, 0, mIconHPadding, 0);
            return lp;
        }

        @Override
        protected void destroy() {
            for (int i = 0; i < mGroup.getChildCount(); i++) {
                mDarkIconDispatcher.removeDarkReceiver((DarkReceiver) mGroup.getChildAt(i));
            }
            mGroup.removeAllViews();
        }

        @Override
        protected void onRemoveIcon(int viewIndex) {
            mDarkIconDispatcher.removeDarkReceiver((DarkReceiver) mGroup.getChildAt(viewIndex));
            super.onRemoveIcon(viewIndex);
        }

        @Override
        public void onSetIcon(int viewIndex, StatusBarIcon icon) {
            super.onSetIcon(viewIndex, icon);
            mDarkIconDispatcher.applyDark((DarkReceiver) mGroup.getChildAt(viewIndex));
        }

        @Override
        protected DemoStatusIcons createDemoStatusIcons() {
            DemoStatusIcons icons = super.createDemoStatusIcons();
            mDarkIconDispatcher.addDarkReceiver(icons);

            return icons;
        }

        @Override
        protected void exitDemoMode() {
            mDarkIconDispatcher.removeDarkReceiver(mDemoStatusIcons);
            super.exitDemoMode();
        }
    }

  

二、打开config_statusBarIconsToExclude默认配置文件

文件路径

frameworks/base/packages/SystemUI/res/xml/tuner_prefs.xml

新增com.android.systemui.tuner.StatusBarSwitch类似的代码