systemui界面修改 如何修改systemui

作为订制化的系统，我们有时候需要修改导航栏，在这里我们以修改导航栏图标为例，在导航栏添加语音助手的图标。

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2017/6/19

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实现

1. 首先在SystemUI中添加语音助手的资源文件，路径如下：
   frameworks/base/packages/SystemUI/res/
2. 修改导航栏的布局文件，路径：
   frameworks/base/packages/SystemUI/res/layout/navigation_bar.xml
   在返回键前面添加语音助手和录像按钮的布局(注意要修改两个地方一个横屏的一个竖屏的，如果只修改了上面那段在切换横屏时候会崩溃)：

<?xml version="1.0" encoding="utf-8"?>
<!--
/* apps/common/assets/default/default/skins/StatusBar.xml
**
** Copyright 2011, 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.
*/
-->

<com.android.systemui.statusbar.phone.NavigationBarView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:systemui="http://schemas.android.com/apk/res/com.android.systemui"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:background="@drawable/system_bar_background"
    >

    <FrameLayout android:id="@+id/rot0"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        >

        <LinearLayout
            android:layout_height="match_parent"
            android:layout_width="match_parent"
            android:orientation="horizontal"
            android:clipChildren="false"
            android:clipToPadding="false"
            android:id="@+id/nav_buttons"
            android:animateLayoutChanges="true"
            >

            <!-- navigation controls -->
            <View
                android:layout_width="40dp"
                android:layout_height="match_parent"
                android:layout_weight="0"
                android:visibility="invisible"
                />
            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/back"
                android:layout_width="@dimen/navigation_key_width"
                android:layout_height="match_parent"
                android:src="@drawable/ic_sysbar_back"
                systemui:keyCode="4"
                android:layout_weight="0"
                android:scaleType="center"
                android:contentDescription="@string/accessibility_back"
                />
            <View 
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:visibility="invisible"
                />
            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/home"
                android:layout_width="@dimen/navigation_key_width"
                android:layout_height="match_parent"
                android:src="@drawable/ic_sysbar_home"
                systemui:keyCode="3"
                systemui:keyRepeat="false"
                android:layout_weight="0"
                android:contentDescription="@string/accessibility_home"
                />
            <View 
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:visibility="invisible"
                />

            <!-- larson modify @dimen/navigation_key_width to 1dp and removed  android:layout_weight="0"-->
            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/recent_apps"
                android:layout_width="1dp"
                android:layout_height="match_parent"
                android:src="@drawable/ic_sysbar_recent"
                android:contentDescription="@string/accessibility_recent"
                />

            <!--  code below written by larsonzhong -->
            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/videoCapture"
                    android:layout_width="@dimen/navigation_key_width"
                    android:layout_height="match_parent"
                    android:src="@drawable/ic_sysbar_video_off"
                    android:layout_weight="0"
                    android:contentDescription="@string/accessibility_recent"
                    android:padding="5dp"
                    android:scaleType="center"
                     />

            <View
                    android:layout_width="40dp"
                    android:layout_height="match_parent"
                    android:layout_weight="0"
                    android:visibility="invisible" />

            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/voiceAssist"
                    android:layout_width="@dimen/navigation_key_width"
                    android:layout_height="match_parent"
                    android:src="@drawable/rc_statuebar_voiceassist_selector"
                    android:layout_weight="0"
                    android:contentDescription="@string/accessibility_recent"
                    android:padding="5dp"
                    android:scaleType="center"
            />

            <View
                    android:layout_width="40dp"
                    android:layout_height="match_parent"
                    android:layout_weight="0"
                    android:visibility="invisible" />


            <FrameLayout
                android:layout_width="@dimen/navigation_extra_key_width"
                android:layout_height="match_parent"
                android:layout_weight="0" >
                <com.android.systemui.statusbar.policy.KeyButtonView
                    android:id="@+id/menu"
                    android:layout_width="@dimen/navigation_extra_key_width"
                    android:layout_height="match_parent"
                    android:contentDescription="@string/accessibility_menu"
                    android:src="@drawable/ic_sysbar_menu"
                    android:visibility="invisible"
                    systemui:keyCode="82" />

                <com.android.systemui.statusbar.policy.KeyButtonView
                    android:id="@+id/ime_switcher"
                    android:layout_width="@dimen/navigation_extra_key_width"
                    android:layout_height="match_parent"
                    android:contentDescription="@string/accessibility_ime_switch_button"
                    android:scaleType="centerInside"
                    android:src="@drawable/ic_ime_switcher_default"
                    android:visibility="invisible" />
            </FrameLayout>

        </LinearLayout>

        <!-- lights out layout to match exactly -->
        <LinearLayout
            android:layout_height="match_parent"
            android:layout_width="match_parent"
            android:orientation="horizontal"
            android:id="@+id/lights_out"
            android:visibility="gone"
            >
            <ImageView
                android:layout_width="80dp"
                android:layout_height="match_parent"
                android:layout_marginStart="40dp"
                android:src="@drawable/ic_sysbar_lights_out_dot_small"
                android:scaleType="center"
                android:layout_weight="0"
                />
            <View 
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:visibility="invisible"
                />
            <ImageView
                android:layout_width="80dp"
                android:layout_height="match_parent"
                android:src="@drawable/ic_sysbar_lights_out_dot_large"
                android:scaleType="center"
                android:layout_weight="0"
                />
            <View 
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:visibility="invisible"
                />
            <ImageView
                android:layout_width="80dp"
                android:layout_marginEnd="40dp"
                android:layout_height="match_parent"
                android:src="@drawable/ic_sysbar_lights_out_dot_small"
                android:scaleType="center"
                android:layout_weight="0"
                />
        </LinearLayout>

        <com.android.systemui.statusbar.policy.DeadZone
            android:id="@+id/deadzone"
            android:layout_height="match_parent"
            android:layout_width="match_parent"
            systemui:minSize="@dimen/navigation_bar_deadzone_size"
            systemui:maxSize="@dimen/navigation_bar_deadzone_size_max"
            systemui:holdTime="@integer/navigation_bar_deadzone_hold"
            systemui:decayTime="@integer/navigation_bar_deadzone_decay"
            systemui:orientation="horizontal"
            android:layout_gravity="top"
            />
    </FrameLayout>

    <FrameLayout android:id="@+id/rot90"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:visibility="gone"
        android:paddingTop="0dp"
        >

        <LinearLayout 
            android:layout_height="match_parent"
            android:layout_width="match_parent"
            android:orientation="vertical"
            android:clipChildren="false"
            android:clipToPadding="false"
            android:id="@+id/nav_buttons"
            android:animateLayoutChanges="true"
            >

            <!-- navigation controls -->
            <FrameLayout
                android:layout_weight="0"
                android:layout_width="match_parent"
                android:layout_height="40dp" >
                <com.android.systemui.statusbar.policy.KeyButtonView
                    android:id="@+id/ime_switcher"
                    android:layout_width="match_parent"
                    android:layout_height="40dp"
                    android:contentDescription="@string/accessibility_ime_switch_button"
                    android:scaleType="centerInside"
                    android:src="@drawable/ic_ime_switcher_default"
                    android:visibility="invisible" />

                <com.android.systemui.statusbar.policy.KeyButtonView
                    android:id="@+id/menu"
                    android:layout_width="match_parent"
                    android:layout_height="40dp"
                    android:contentDescription="@string/accessibility_menu"
                    android:src="@drawable/ic_sysbar_menu_land"
                    android:visibility="invisible"
                    systemui:keyCode="82" />
            </FrameLayout>

            <!--  code below written by larsonzhong -->
            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/videoCapture"
                android:src="@drawable/ic_sysbar_video_off"
                android:layout_height="80dp"
                android:layout_width="match_parent"
                android:padding="5dp"
                android:scaleType="center"
                android:layout_weight="0"
                android:contentDescription="@string/accessibility_back"
            />

            <View
                android:layout_height="match_parent"
                android:layout_width="match_parent"
                android:layout_weight="1"
                android:visibility="invisible"
            />

            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/voiceAssist"
                 android:src="@drawable/rc_statuebar_voiceassist_selector"
                 android:layout_height="80dp"
                 android:layout_width="match_parent"
                 android:padding="5dp"
                 android:scaleType="center"
                 android:layout_weight="0"
                 android:contentDescription="@string/accessibility_back"
            />

            <!-- larson modify  80dp to 1dp and removed  android:layout_weight="0"-->
            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/recent_apps"
                android:layout_height="1dp"
                android:layout_width="match_parent"
                android:src="@drawable/ic_sysbar_recent_land"
                android:contentDescription="@string/accessibility_recent"
                />
            <View 
                android:layout_height="match_parent"
                android:layout_width="match_parent"
                android:layout_weight="1"
                android:visibility="invisible"
                />
            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/home"
                android:layout_height="80dp"
                android:layout_width="match_parent"
                android:src="@drawable/ic_sysbar_home_land"
                systemui:keyCode="3"
                systemui:keyRepeat="false"
                android:layout_weight="0"
                android:contentDescription="@string/accessibility_home"
                />
            <View 
                android:layout_height="match_parent"
                android:layout_width="match_parent"
                android:layout_weight="1"
                android:visibility="invisible"
                />
            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/back"
                android:layout_height="80dp"
                android:layout_width="match_parent"
                android:src="@drawable/ic_sysbar_back_land"
                android:scaleType="center"
                systemui:keyCode="4"
                android:layout_weight="0"
                android:contentDescription="@string/accessibility_back"
                />
            <View
                android:layout_height="40dp"
                android:layout_width="match_parent"
                android:layout_weight="0"
                android:visibility="invisible"
                />
        </LinearLayout>

        <!-- lights out layout to match exactly -->
        <LinearLayout 
            android:layout_height="match_parent"
            android:layout_width="match_parent"
            android:orientation="vertical"
            android:id="@+id/lights_out"
            android:visibility="gone"
            >
            <ImageView
                android:layout_height="80dp"
                android:layout_marginTop="40dp"
                android:layout_width="match_parent"
                android:src="@drawable/ic_sysbar_lights_out_dot_small"
                android:scaleType="center"
                android:layout_weight="0"
                />
            <View 
                android:layout_height="match_parent"
                android:layout_width="match_parent"
                android:layout_weight="1"
                android:visibility="invisible"
                />
            <ImageView
                android:layout_height="80dp"
                android:layout_width="match_parent"
                android:src="@drawable/ic_sysbar_lights_out_dot_large"
                android:scaleType="center"
                android:layout_weight="0"
                />
            <View 
                android:layout_height="match_parent"
                android:layout_width="match_parent"
                android:layout_weight="1"
                android:visibility="invisible"
                />
            <ImageView
                android:layout_height="80dp"
                android:layout_marginBottom="40dp"
                android:layout_width="match_parent"
                android:src="@drawable/ic_sysbar_lights_out_dot_small"
                android:scaleType="center"
                android:layout_weight="0"
                />
        </LinearLayout>

        <com.android.systemui.statusbar.policy.DeadZone
            android:id="@+id/deadzone"
            android:layout_height="match_parent"
            android:layout_width="match_parent"
            systemui:minSize="@dimen/navigation_bar_deadzone_size"
            systemui:maxSize="@dimen/navigation_bar_deadzone_size_max"
            systemui:holdTime="@integer/navigation_bar_deadzone_hold"
            systemui:decayTime="@integer/navigation_bar_deadzone_decay"
            systemui:orientation="vertical"
            android:layout_gravity="top"
            />
    </FrameLayout>

</com.android.systemui.statusbar.phone.NavigationBarView>

顺便把rc_statuebar_voiceassist_selector也贴出来，这个selector用在当用户长按按钮的时候，按钮disable掉：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">     
<!-- disabled -->
    <item android:state_enabled="false" 
          android:state_pressed="false" 
          android:drawable="@drawable/ic_sysbar_voice_off" />
<!-- pressed -->
    <item android:state_enabled="true" 
          android:state_pressed="true"
          android:drawable="@drawable/ic_sysbar_voice_on" />
<!-- focused -->
<!--    <item android:state_enabled="true" 
          android:state_focused="true"
          android:textcolor="@android:color/white" 
          android:drawable="@drawable/list_item_focused" /> -->     
<!-- default -->
    <item android:state_enabled="true" 
          android:state_pressed="false" 
          android:drawable="@drawable/ic_sysbar_voice_on"/>
</selector>

1. 接着修改代码逻辑，文件路径:
   frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.Java
   在private void prepareNavigationBarView() {……}函数中添加点击和长按事件

mNavigationBarView.getVoiceAssistButton().setOnLongClickListener(mLongPressVoiceListener);//[e-mail]
        mNavigationBarView.getVoiceAssistButton().setOnClickListener(mYuyinClickListener);//[e-mail]

        mNavigationBarView.getVideoCaptureButton().setOnClickListener(mDvrClickListener);//[e-mail]

对应的getVoiceAssistButton()要在
frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
中实现：

//[e-mail]
    public View getVoiceAssistButton(){  
        return mCurrentView.findViewById(R.id.voiceAssist);  
    }  

    //[e-mail]
    public View getVideoCaptureButton(){  
        return mCurrentView.findViewById(R.id.videoCapture);  
    }

1. 最后就是功能实现了，在
   frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
   中添加监听函数：

///////////////////*语音按钮长按*////////////
    private View.OnLongClickListener mLongPressVoiceListener =//[e-mail]
        new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if (!isYuyinSwitchOn()){
                PhoneStatusBar.this.setYuyinSwitch(true);
                showToast("打开语音助手");
            }else{
                PhoneStatusBar.this.setYuyinSwitch(false);
                showToast("关闭语音助手");
            }

           updateYuyinStatue();
        return true;
        }

    };

    private void updateYuyinStatue() {
         ImageView localImageView;
           if (mNavigationBarView.getVoiceAssistButton() != null){
             localImageView = (ImageView)mNavigationBarView.getVoiceAssistButton();
             localImageView.setEnabled(isYuyinSwitchOn());
           }
    }

    private void showToast(String resString){//[e-mail]
      android.widget.Toast.makeText(mContext, resString, android.widget.Toast.LENGTH_SHORT).show();
    }

    private void setYuyinSwitch(boolean paramBoolean){//[e-mail]
      android.content.ContentResolver localContentResolver = this.mContext.getContentResolver();
      Settings.System.putInt(localContentResolver, "yuyin_switch", paramBoolean?1:0);
    }

    private boolean isYuyinSwitchOn(){//[e-mail]
      return Settings.System.getInt(this.mContext.getContentResolver(), "yuyin_switch", 1) == 1;
    }

    ////***********************[e-mail]*************//////////////////////

/************ 语音按钮点击 *********/
    private View.OnClickListener mYuyinClickListener = new View.OnClickListener()// [e-mail]
    {
        public void onClick(View paramAnonymousView) {
            // 语音助手关闭，则点击无效
            if (!isSupportYuyinSwitch())
                return;

            if (!isYuyinSwitchOn()) {
                setYuyinSwitch(true);
                updateYuyinStatue();
            }

            sendYuyinDownBroadcast();
        }

    };
    private final String BROADCAST_START_VOICE_ASSIST = "com.larson.systemui.KEYDOWN_VOICE_ASSIST";
    private void sendYuyinDownBroadcast() {
        mContext.sendBroadcast(new Intent(BROADCAST_START_VOICE_ASSIST));
    }

//// ***********************DVR按钮*************//////////////////////

    private final String BROADCAST_START_DVR = "com.larson.systemui.KEYDOWN_DVR";
    private View.OnClickListener mDvrClickListener = new View.OnClickListener() {
        public void onClick(View paramAnonymousView) {
            mContext.sendBroadcast(new Intent(BROADCAST_START_DVR));
        }
    };

1. 编译，在根目录使用mmm指令，mmm frameworks/base/packages/SystemUI，编译很快就能完成,如果出现mmm指令不识别，请先source然后lunch一下。

后续工作

如果你的应用有使用横屏模式，务必把layout下的land下的布局也同步修改了。

SystemUI.apk生成以后，直接重新刷系统是看不到改变的，我们需要把重新生成的SystemUI.apk推送到手机中，具体步骤如下：
我们先确定SystemUI所在的目录，为了验证我上一句话是对的，我先把系统里的SystemUI.apk拉出来，然后看下布局文件是否改变，如果没有改变说明重新刷系统无效。

为了让系统可读写，我们首先执行

#获取系统权限，便于执行remount
adb root
#让系统可读写
adb remount
#把SystemUI.apk拖出来
adb pull adb pull /system/priv-app/SystemUI/SystemUI.apk F:\
#进入到修改后的SystemUI.apk所在目录
adb push SystemUI.apk /system/priv-app/SystemUI/SystemUI.apk
#重起系统查看效果
adb reboot

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2017/4/19

---

导入eclipse

导入eclipse只是在eclipse方便写代码而已，不要在意报错，因为最终还是要在源码树上调试。下面这几步只是为了方便开发，因为记事本写导包啊啥的挺麻烦的。

1. 首先从安卓源码树中拿到SystemUI的原代码，位置在 \源码目录\frameworks\base\packages\SystemUI，我们把这个文件夹拷贝出来。
2. 把framework的jar包导入，上面的错误大部分是因为缺少依赖导致。framework.jar在编译好的系统输出目录下，out\target\common\obj\JAVA_LIBRARIES\framework_intermediates\classes.jar
   拿到这个文件，我们改名为framework.jar，加入到SystemUI工程目录的buildPath中。这个时候我们发现少了很多错误。
3. 按照上面的方式添加以下依赖：
   out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar
   out/target/common/obj/JAVA_LIBRARIES/service_intermediates/classes.jar
   out/target/common/obj/JAVA_LIBRARIES/core-tests_intermediates/javalib.jar
4. 发现还有错误；
   将/frameworks/base/packages/Keyguard 里面src下的文件都拷贝到工程中
   eclipse要选Java 1.7版本。
5. 发现还有报错
   //import com.android.systemui.EventLogTags;
   代码里用到EventLog的会报错，把这个屏蔽掉
6. 还有资源文件报错
   不管了，反正我们到时候是要把代码复制到系统源码里面的，不影响写代码就行。