在android的状态栏(statusbar)中增加menu，home和back快捷键的方法

http://blog.youkuaiyun.com/caszhao/article/details/5986743

在状态栏上添加Menu,Back,Home三个按钮的方法，在下文有良好的阐述。详见：

《在android的状态栏(statusbar)中增加menu，home和back快捷键的方法》http://blog.youkuaiyun.com/freshui/archive/2010/07/15/5738115.aspx

在使用过程中，存在两个问题：

• HOME键在我的机器上无效
• 连击按钮时，由于有时Intent未响应，导致弹起操作未响应直接诶被WindowsManager抛掉。这样就出现了虽然手已离开屏幕，但按钮出现高亮的状态。

1、对于第一个问题，我的方法是把home键单独进行处理，向launcher发送一个启动activity的Intent，这样可以直接回到桌面上。在原方法的基础上,对Home单独进行处理。

1 if (RESV_KEY_HOME = = mResvKeyCode)
2 {
3 Log . d(TAG, "HOMEbuttonIntent!" );
4 Intent intent = new Intent(Intent . ACTION_MAIN);
5 intent . setFlags(Intent . FLAG_ACTIVITY_NEW_TASK);
6 intent . addCategory(Intent . CATEGORY_HOME);
7 mService . sendIntent2(intent);
8 }
9 else
10 {
11 Log . d(TAG, "othertwobuttonsIntent!" );
12 Intent intent = new Intent(Intent . ACTION_ICONKEY_CHANGED);
13 intent . addFlags(Intent . FLAG_RECEIVER_REGISTERED_ONLY);
14 intent . putExtra( "keycode" , mResvKeyCode);
15 mService . sendIntent(intent);
16 }

在StatusBarService.java中添加sendIntent2方法

1 void sendIntent2(Intent intent)
2 {
3 mContext . startActivity(intent);
4 }

2、第二个问题的修正思想是使用Animation逐帧动画来使得按钮从完成 正常态按下后-变化至高亮态-恢复正常态 这一周期。

a. 先在res/layout（与status_bar.xml同目录）中添加三个animation动画xml配置文件。

分别是

animation_home.xml：

1 < ?xml version = " 1.0 " encoding = " utf-8 " ? >
2 < animation-list xmlns:android = " http://schemas.android.com/apk/res/android "
3 android:oneshot = " true " >
4 < item
5 android:duration = " 80 "
6 android:drawable = " @drawable/stat_home " >
7 < /item >
8 < item
9 android:duration = " 80 "
10 android:drawable = " @drawable/stat_home_pressed " >
11 < /item >
12 < item
13 android:duration = " 80 "
14 android:drawable = " @drawable/stat_home " >
15 < /item >
16 < /animation-list >

animation_back.xml：

1 < ?xml version = " 1.0 " encoding = " utf-8 " ? >
2 < animation-list xmlns:android = " http://schemas.android.com/apk/res/android "
3 android:oneshot = " true " >
4 < item
5 android:duration = " 80 "
6 android:drawable = " @drawable/stat_back " >
7 < /item >
8 < item
9 android:duration = " 80 "
10 android:drawable = " @drawable/stat_back_pressed " >
11 < /item >
12 < item
13 android:duration = " 80 "
14 android:drawable = " @drawable/stat_back " >
15 < /item >
16 < /animation-list >
17
18
19

animation_menu.xml：

1 < ?xml version = " 1.0 " encoding = " utf-8 " ? >
2 < animation-list xmlns:android = " http://schemas.android.com/apk/res/android "
3 android:oneshot = " true " >
4 < item
5 android:duration = " 80 "
6 android:drawable = " @drawable/stat_menu " >
7 < /item >
8 < item
9 android:duration = " 80 "
10 android:drawable = " @drawable/stat_menu_pressed " >
11 < /item >
12 < item
13 android:duration = " 80 "
14 android:drawable = " @drawable/stat_menu " >
15 < /item >
16 < /animation-list >
17
18

这三个xml文件分别对应着 home back menu的动画过程

b . 在res/layout/status_bar.xml中修改Imageview的background指向上述三个xml配置文件：

1 < ?xml version = " 1.0 " encoding = " utf-8 " ? >
2 <!-- android:background="@drawable/status_bar_closed_default_background" -->
3 < com.android.server.status.StatusBarView xmlns:android = " http://schemas.android.com/apk/res/android "
4 android:background = " @drawable/statusbar_background "
5 android:orientation = " vertical "
6 android:focusable = " true "
7 android:descendantFocusability = " afterDescendants "
8 >
9
10 < LinearLayout android:id = " @+id/icons "
11 android:layout _width= " fill_parent "
12 android:layout _height= " fill_parent "
13 android:orientation = " horizontal " >
14 <!-- Ethan.zhao : Start Add home button on status_bar -->
15 < ImageView
16 android:id = " @+id/status_home "
17 android:layout _width= " wrap_content "
18 android:layout _height= " wrap_content "
19 android:layout _gravity= " top "
20 android:background = " @layout/animation_home "
21 / >
22 <!-- Ethan.zhao : Start Add home button on status_bar -->
23
24 < com.android.server.status.IconMerger android:id = " @+id/notificationIcons "
25 android:layout _width= " 0dip "
26 android:layout _weight= " 1 "
27 android:layout _height= " fill_parent "
28 android:layout _alignParentLeft= " true "
29 android:paddingLeft = " 6dip "
30 android:gravity = " center_vertical "
31 android:orientation = " horizontal " / >
32
33 < LinearLayout android:id = " @+id/statusIcons "
34 android:layout _width= " wrap_content "
35 android:layout _height= " fill_parent "
36 android:layout _alignParentRight= " true "
37 android:paddingRight = " 6dip "
38 android:gravity = " center_vertical "
39 android:orientation = " horizontal " / >
40 <!-- Ethan.zhao : Start Add menu/back button on status_bar -->
41 < ImageView
42 android:id = " @+id/status_menu "
43 android:layout _width= " wrap_content "
44 android:layout _height= " wrap_content "
45 android:layout _gravity= " top "
46 android:background = " @layout/animation_menu "
47 / >
48
49 < ImageView
50 android:id = " @+id/status_back "
51 android:layout _width= " wrap_content "
52 android:layout _height= " wrap_content "
53 android:layout _gravity= " top "
54 android:background = " @layout/animation_back "
55 / >
56 <!-- Ethan.zhao : End Add three button on status_bar -->
57 < /LinearLayout >
58 < LinearLayout android:id = " @+id/ticker "
59 android:layout _width= " fill_parent "
60 android:layout _height= " fill_parent "
61 android:paddingLeft = " 6dip "
62 android:animationCache = " false "
63 android:orientation = " horizontal " >
64 < ImageSwitcher android:id = " @+id/tickerIcon "
65 android:layout _width= " wrap_content "
66 android:layout _height= " fill_parent "
67 android:layout _marginRight= " 8dip "
68 >
69 < com.android.server.status.AnimatedImageView
70 android:layout _width= " 25dip "
71 android:layout _height= " 25dip "
72 / >
73 < com.android.server.status.AnimatedImageView
74 android:layout _width= " 25dip "
75 android:layout _height= " 25dip "
76 / >
77 < /ImageSwitcher >
78 < com.android.server.status.TickerView android:id = " @+id/tickerText "
79 android:layout _width= " 0dip "
80 android:layout _weight= " 1 "
81 android:layout _height= " wrap_content "
82 android:paddingTop = " 2dip "
83 android:paddingRight = " 10dip " >
84 < TextView
85 android:layout _width= " fill_parent "
86 android:layout _height= " wrap_content "
87 android:singleLine = " true "
88 android:textColor = " #ff000000 " / >
89 < TextView
90 android:layout _width= " fill_parent "
91 android:layout _height= " wrap_content "
92 android:singleLine = " true "
93 android:textColor = " #ff000000 " / >
94 < /com.android.server.status.TickerView >
95 < /LinearLayout >
96
97 < com.android.server.status.DateView android:id = " @+id/date "
98 android:layout _width= " wrap_content "
99 android:layout _height= " fill_parent "
100 android:singleLine = " true "
101 android:textSize = " 16sp "
102 android:textStyle = " bold "
103 android:gravity = " center_vertical|left "
104 android:paddingLeft = " 6px "
105 android:paddingRight = " 6px "
106 android:textColor = " ?android:attr/textColorPrimaryInverse "
107 android:background = " @drawable/statusbar_background "
108 / >
109 < /com.android.server.status.StatusBarView >

c . 修改StatusBarView.java文件，加入Animation相关代码：

添加三个AnimationDrawable：

1 AnimationDrawable mHomeAnimation;
2 AnimationDrawable mBackAnimation;
3 AnimationDrawable mMenuAnimation;

在onFinishInflate()方法中

1 mHomeAnimation = (AnimationDrawable) mHomeIcon . getBackground();
2 mBackAnimation = (AnimationDrawable) mBackIcon . getBackground();
3 mMenuAnimation = (AnimationDrawable) mMenuIcon . getBackground();

updateResvKeyIcon这个方法，改造成如下这样：

1 private int updateResvKeyIcon( int key)
2 {
3 if (key = = RESV_KEY_BACK)
4 {
5 mBackAnimation . run();
6 }
7 else if (key = = RESV_KEY_HOME)
8 {
9 mHomeAnimation . run();
10 }
11 else if (key = = RESV_KEY_MENU)
12 {
13 mMenuAnimation . run();
14 }
15 return 0 ;
16 }

d. 注释掉所有的updateResvKeyIcon方法，仅保留以下一个，并加上判断语句。

1i f(mResvKeyState = = - 1 ) // remembered key state, no reserve
2 {
3 switch (getResvKeyArea(event)) {
4 case RESV_KEY_HOME :
5 case RESV_KEY_BACK :
6 case RESV_KEY_MENU :
7 {
8 mResvKeyState = event . getAction();
9 mResvKeyCode = getResvKeyArea(event);
10 i f (mResvKeyState = = MotionEvent . ACTION_DOWN) updateResvKeyIcon(mResvKeyCode); // 这句改成这样

附件下载如下：

http://download.youkuaiyun.com/source/2807668

http://blog.youkuaiyun.com/freshui/article/details/5738115

需要说明的是：刚入手android没几天，对系统还不算很熟悉，这篇文章是基于前一篇转帖做的。只是觉得他的方法有些麻烦，而且改出来的效果也不是我想要的。

由于完全改了status bar，建议先做几张png图片，加到

Frameworks/base/core/res/res/drawable

下。最好做一张背景图，替换statusbar_background.png

另外我又加了几张icon，分别是home menu和back的正常和按下状态。

这些图片为：

stat_home.png

stat_home_pressed.png

stat_back.png

stat_back_pressed.png

stat_menu.png

stat_menu_pressed.png

修改步骤为：

一．修改xml界面

1.增加图标

当然，更改整个status bar避免不要要对源码大刀修一下。我的该法是：

修改status bar的layerout文件：

Frameworks/base/core/res/res/layout/status_bar.xml

在原来的linearlayout中新增三个image view

view plain

1. <LinearLayoutandroid:id="@+id/icons"
2. android:layout_width="fill_parent"
3. android:layout_height="fill_parent"
4. android:orientation="horizontal">
6. <ImageViewandroid:id="@+id/status_home"
7. android:layout_width="wrap_content"
8. android:layout_height="wrap_content"
9. android:layout_gravity="top"
10. android:paddingTop="6dip"
11. android:paddingRight="10dip"
12. android:paddingLeft="10dip"
13. android:src="@drawable/stat_home"/>
15. <com.android.server.status.IconMergerandroid:id="@+id/notificationIcons"
16. android:layout_width="0dip"
17. android:layout_weight="1"
18. android:layout_height="fill_parent"
19. android:layout_alignParentLeft="true"
20. android:paddingLeft="6dip"
21. android:gravity="center_vertical"
22. android:orientation="horizontal"/>
24. <LinearLayoutandroid:id="@+id/statusIcons"
25. android:layout_width="wrap_content"
26. android:layout_height="fill_parent"
27. android:layout_alignParentRight="true"
28. android:paddingRight="6dip"
29. android:gravity="center_vertical"
30. android:orientation="horizontal"/>
32. <ImageViewandroid:id="@+id/status_menu"
33. android:layout_width="wrap_content"
34. android:layout_height="wrap_content"
35. android:layout_gravity="top"
36. android:paddingTop="6dip"
37. android:paddingLeft="10dip"
38. android:paddingRight="10dip"
39. android:src="@drawable/stat_menu"/>
41. <ImageViewandroid:id="@+id/status_back"
42. android:layout_width="wrap_content"
43. android:layout_height="wrap_content"
44. android:layout_gravity="top"
45. android:paddingTop="6dip"
46. android:paddingRight="10dip"
47. android:paddingLeft="10dip"
48. android:src="@drawable/stat_back"/>
50. /LinearLayout>

这样做的好处就是简单。同时保证最右端是home按钮，最左端是back按钮，不受它本来的约束。这样status bar上即可看到这些按钮了。

图标的位置，可通过修改paddingRight，paddingLeft和paddingTop的值达到最佳视觉效果。

2.修改status bar的高度。

既然要在status bar上增加那么几个按钮，当然是想要使用触摸操作的，android自带的status bar高度太小，不适用。对于7寸屏的话，50pixel的高度应该是差不多了。

修改高度很简单，如我转的shinning mm的博文。

修改frameworks/base/core/res/res/values/dimens.xml的status_bar_height属性

<!-- Height of the status bar -->

<dimen name="status_bar_height">50dip</dimen>

当然，如果相改title的高度，可以修改Frameworks/base/core/res/res/values/themes.xml中的Window attributes的windowTitleSize值，不过我觉得没必要，改了反倒不好看了：）

编译运行一下：

view plain

1. ~/donut$source./env.sh
2. ~/donut$make–j8
3. ~/donut$emulator–skinWVGA800

，看状态栏是不是改变了？

二为按钮添加动态效果

添加动态效果，就是触摸按下hilight，松开或者移出后恢复的动作。这一块，我是通过修改frameworks/base/services/java/com/android/server/status/StatusBarView.java实现的。

1.获取statusbar中新增加的icon的handler。

在类中新增加三个成员（这需要import android.widget.ImageView;）：

view plain

1. ImageViewmHomeIcon;
2. ImageViewmBackIcon;
3. ImageViewmMenuIcon;

同时增加三个常量，表示这些icon对应的键值(这需要import android.view.KeyEvent;)

view plain

1. publicstaticfinalintRESV_KEY_HOME=KeyEvent.KEYCODE_HOME;
2. publicstaticfinalintRESV_KEY_BACK=KeyEvent.KEYCODE_BACK;
3. publicstaticfinalintRESV_KEY_MENU=KeyEvent.KEYCODE_MENU;;

在onFinishInflate()中，获得实际的对象：

view plain

1. mHomeIcon=(ImageView)findViewById(R.id.status_home);
2. mBackIcon=(ImageView)findViewById(R.id.status_back);
3. mMenuIcon=(ImageView)findViewById(R.id.status_menu);

这三个对象就是我们在status_bar.xml中添加的。

2.添加触摸处理。

首先，应该判断是那个图标被按下，这个我们在StatusBarView.Java的onTouchEvent中来判断。

这里，我做了一个小的按键状态，已方便处理按下、弹起和移出的动作。

首先增加两个状态成员：

view plain

1. intmResvKeyState=-1;//记住的上次按键状态,-1为无状态。
2. intmResvKeyCode=-1;//记住的上次按键值，-1为无状态。

这样我的onTouchEvent就变成这样了：

view plain

1. @Override
2. publicbooleanonTouchEvent(MotionEventevent){
3. if(mService.mExpanded==true||mService.mTracking==true){
4. if(event.getAction()!=MotionEvent.ACTION_DOWN){
5. mService.interceptTouchEvent(event);
6. }
7. returntrue;
8. }
10. if(mResvKeyState==-1)//rememberedkeystate,noreserve
11. {
12. switch(getResvKeyArea(event)){
13. caseRESV_KEY_HOME:
14. caseRESV_KEY_BACK:
15. caseRESV_KEY_MENU:
16. {
17. mResvKeyState=event.getAction();
18. mResvKeyCode=getResvKeyArea(event);
20. updateResvKeyIcon(mResvKeyState,mResvKeyCode);
21. }
22. break;
24. default:
25. if(event.getAction()!=MotionEvent.ACTION_DOWN){
26. mService.interceptTouchEvent(event);
27. }
28. }
29. }else{
30. mResvKeyState=event.getAction();//newstate
32. if(mResvKeyState==MotionEvent.ACTION_MOVE){
33. if(mResvKeyCode!=getResvKeyArea(event)){
34. /*outofbound,resumetheicon*/
35. updateResvKeyIcon(MotionEvent.ACTION_UP,mResvKeyCode);
37. mResvKeyCode=-1;
38. mResvKeyState=-1;
39. }
40. }elseif(mResvKeyState==MotionEvent.ACTION_UP){
41. updateResvKeyIcon(mResvKeyState,mResvKeyCode);
42. mResvKeyCode=-1;
43. mResvKeyState=-1;
44. }else{
45. Log.d(TAG,"statemachineerror!Neverbehere!");
46. }
47. }
49. returntrue;
50. }

里面用到的两个private方法简单实现如下：

view plain

1. privateintgetResvKeyArea(MotionEventevent)
2. {
3. if((event.getX()<=mHomeIcon.getRight())
4. &&(event.getY()<=this.getHeight())){
5. returnRESV_KEY_HOME;
6. }
7. elseif((event.getX()>=mBackIcon.getLeft())
8. &&(event.getY()<=this.getHeight())){
9. returnRESV_KEY_BACK;
10. }
11. elseif((event.getX()>=mMenuIcon.getLeft())
12. &&(event.getY()<=this.getHeight())){
13. returnRESV_KEY_MENU;
14. }else
15. return-1;
16. }
18. privateintupdateResvKeyIcon(intstate,intkey)
19. {
20. if(key==RESV_KEY_BACK){
21. if(state==MotionEvent.ACTION_UP){
22. mBackIcon.setImageResource(com.android.internal.R.drawable.stat_back);
23. }elseif(state==MotionEvent.ACTION_DOWN){
24. mBackIcon.setImageResource(com.android.internal.R.drawable.stat_back_pressed);
25. }
26. }elseif(key==RESV_KEY_HOME){
27. if(state==MotionEvent.ACTION_UP){
28. mHomeIcon.setImageResource(com.android.internal.R.drawable.stat_home);
29. }elseif(state==MotionEvent.ACTION_DOWN){
30. mHomeIcon.setImageResource(com.android.internal.R.drawable.stat_home_pressed);
31. }
32. }elseif(key==RESV_KEY_MENU){
33. if(state==MotionEvent.ACTION_UP){
34. mMenuIcon.setImageResource(com.android.internal.R.drawable.stat_menu);
35. }elseif(state==MotionEvent.ACTION_DOWN){
36. mMenuIcon.setImageResource(com.android.internal.R.drawable.stat_menu_pressed);
37. }
38. }
40. return0;
41. }

同时，我不想再在按下这些icon的时候，触发下拉动作，我也改了onInterceptTouchEvent函数：

view plain

1. @Override
2. publicbooleanonInterceptTouchEvent(MotionEventevent){
3. if((event.getX()>mHomeIcon.getRight())
4. &&(event.getX()<mMenuIcon.getLeft())){
5. returnmService.interceptTouchEvent(event)
6. ?true:super.onInterceptTouchEvent(event);
7. }
9. returnfalse;
10. }

再编译一下，看一下结果:）是不是能动了？

三，添加相应事件

1. 添加新的intent

首先是新增一条intent，在framework/base/core/java/android/content/intent.java中增加

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1. @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2. publicstaticfinalStringACTION_ICONKEY_CHANGED="android.intent.action.ICONKEY_CHANGED";

2. 发送intent

在StatusBarView.java的OnKeyEvent中,松开按键的分支else if(mResvKeyState == MotionEvent.ACTION_UP)操作中加入发送intent的动作：

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1. Intentintent=newIntent(Intent.ACTION_ICONKEY_CHANGED);
2. intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
3. intent.putExtra("keycode",mResvKeyCode);
4. mService.sendIntent(intent);

这个intent是只有注册的接收者才能接收。

这里，我们是通过StatusBarService来发送这个intent的。

在StatusBarService.java中新增一个方法:

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1. voidsendIntent(Intentintent)
2. {
3. mContext.sendBroadcast(intent);
4. }

3.接收并处理intent

这个就要修改StatusBarPolicy.java了

首先，在构造函数中加入Intent的filter，注册号这个intent的receiver。

filter.addAction(Intent.ACTION_ICONKEY_CHANGED);

然后再private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() 加入Intent的receiver动作;

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1. elseif(action.equals(Intent.ACTION_ICONKEY_CHANGED)){
2. G,"ReceivedACTION_ICONKEY_CHANGED");
3. updateIconKeyAction(intent);
4. }

方法updateIconKeyAction的定义如下：

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1. privatefinalvoidupdateIconKeyAction(Intentintent){
2. intkeycode=intent.getIntExtra("keycode",-1);
4. if(keycode!=-1){
5. longnow=SystemClock.uptimeMillis();
7. try{
8. KeyEventdown=newKeyEvent(now,now,KeyEvent.ACTION_DOWN,keycode,0);
9. KeyEventup=newKeyEvent(now,now,KeyEvent.ACTION_UP,keycode,0);
10. (IWindowManager.Stub
11. .asInterface(ServiceManager.getService("window")))
12. .injectKeyEvent(down,false);
13. (IWindowManager.Stub
14. .asInterface(ServiceManager.getService("window")))
15. .injectKeyEvent(up,false);
16. }catch(RemoteExceptione){
17. Log.i("Input","DeadOjbectException");
18. }
20. }
21. }

这样，基本上就完成了。

编译一下， 由于新增了一个intent，因此要先make update-api，

view plain

1. ~/donut$source./env.sh
2. ~/donut$makeupdate-api
3. ~/donut$make–j8
4. ~/donut$emulator–skinWVGA800

另外，如果不是做phone，也可以在StatusBarPolicy.java中将所有phone相关的处理都删掉。

______________________________________________________________________________________________________________

在Android 2.3状态栏中添加menu，home和back快捷键的方法

1、准备资源，修改XML文
准备几张图，这里我们准备添加home back和menu图标，就需要准备6张图，三张普通状态，三张按下的高亮状态图标：
stat_home.png
stat_home_pressed.png
stat_back.png
stat_back_pressed.png
stat_menu.png
stat_menu_pressed.png
把它们放在frameworks/base/packages/SystemUI/res/drawable/目录下
同时，在frameworks/base/packages/SystemUI/res/drawable 下创建三个imageButton的xml文件
xml_stat_home.xml

1. <?xml version = "1.0" encoding = "utf-8" ?>

2. <selector

3. xmlns:android = "http://schemas.android.com/apk/res/android" >

4. <item

5. android:state_focused = "true"

6. android:state_pressed = "false"

7. android:drawable = "@drawable/stat_home" />

8. <item

9. android:state_focused = "true"

10. android:state_pressed = "true"

11. android:drawable = "@drawable/stat_home_pressed" />

12. <item

13. android:state_focused = "false"

14. android:state_pressed = "true"

15. android:drawable = "@drawable/stat_home_pressed" />

16. <item

17. android:drawable = "@drawable/stat_home" />

18. </selector>

xml_stat_back.xml

1.<?xmlversion="1.0"encoding="utf-8"?>

2.<selector

3.xmlns:android="http://schemas.android.com/apk/res/android">

4.<item

5.android:state_focused="true"

6.android:state_pressed="false"

7.android:drawable="@drawable/stat_back"/>

8.<item

9.android:state_focused="true"

10.android:state_pressed="true"

11.android:drawable="@drawable/stat_back_pressed"/>

12.<item

13.android:state_focused="false"

14.android:state_pressed="true"

15.android:drawable="@drawable/stat_back_pressed"/>

16.<item

17.android:drawable="@drawable/stat_back"/>

18.</selector>

xml_stat_menu.xml

1. <?xml version = "1.0" encoding = "utf-8" ?>

2. <selector

3. xmlns:android = "http://schemas.android.com/apk/res/android" >

4. <item

5. android:state_focused = "true"

6. android:state_pressed = "false"

7. android:drawable = "@drawable/stat_menu" />

8. <item

9. android:state_focused = "true"

10. android:state_pressed = "true"

11. android:drawable = "@drawable/stat_menu_pressed" />

12. <item

13. android:state_focused = "false"

14. android:state_pressed = "true"

15. android:drawable = "@drawable/stat_menu_pressed" />

16. <item

17. android:drawable = "@drawable/stat_menu" />

18. </selector>

修改status_bar.xml成如下
目录：frameworks/base/packages/SystemUI/res/layout/status_bar.xml

1.<?xml version="1.0" encoding="utf-8"?>

2.<!--

3./* apps/common/assets/default/default/skins/StatusBar.xml

4.**

5.** Copyright 2006, The Android Open Source Project

6.**

7.** Licensed under the Apache License, Version 2.0 (the "License");

8.** you may not use this file except in compliance with the License.

9.** You may obtain a copy of the License at

10.**

11.** http://www.apache.org/licenses/LICENSE-2.0

12.**

13.** Unless required by applicable law or agreed to in writing, software

14.** distributed under the License is distributed on an "AS IS" BASIS,

15.** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

16.** See the License for the specific language governing permissions and

17.** limitations under the License.

18.*/

19.-->

20.

21.<!-- android:background="@drawable/status_bar_closed_default_background" -->

22.<com.android.systemui.statusbar.StatusBarView

23.xmlns:android="http://schemas.android.com/apk/res/android"

24.android:background="@drawable/statusbar_background"

25.android:orientation="vertical"

26.android:focusable="true"

27.android:descendantFocusability="afterDescendants"

28.>

29.

30.<LinearLayout android:id="@+id/icons"

31.android:layout_width="match_parent"

32.android:layout_height="match_parent"

33.android:orientation="horizontal">

34.<com.android.systemui.statusbar.IconMerger android:id="@+id/notificationIcons"

35.android:layout_width="0dip"

36.android:layout_weight="1"

37.android:layout_height="match_parent"

38.android:layout_alignParentLeft="true"

39.android:paddingLeft="6dip"

40.android:gravity="center_vertical"

41.android:orientation="horizontal"/>

42.

43.<LinearLayout android:id="@+id/statusIcons"

44.android:layout_width="wrap_content"

45.android:layout_height="match_parent"

46.android:layout_alignParentRight="true"

47.android:paddingRight="6dip"

48.android:gravity="center_vertical"

49.android:orientation="horizontal"/>

50.<ImageButton android:id="@+id/go_home"

51. android:layout_width="32px"

52. android:layout_height="32px"

53. android:layout_alignParentLeft="true"

54.android:paddingLeft="10dip"

55. android:paddingTop="10dip"

56.android:gravity="center_vertical"

57. android:clickable="true"

58. android:background="@drawable/xml_stat_home"

59. />

60.<ImageButton android:id="@+id/pop_menu"

61. android:layout_width="32px"

62. android:layout_height="32px"

63. android:layout_alignParentRight="true"

64.android:paddingLeft="10dip"

65.android:paddingTop="10dip"

66.android:gravity="center_vertical"

67.android:orientation="horizontal"

68. android:clickable="true"

69. android:background="@drawable/xml_stat_menu"

70. />

71.<ImageButton android:id="@+id/go_back"

72. android:layout_width="32px"

73. android:layout_height="32px"

74.android:layout_alignParentRight="true"

75.android:paddingLeft="10dip"

76. android:paddingTop="10dip"

77.android:gravity="center_vertical"

78.android:orientation="horizontal"

79. android:clickable="true"

80. android:background="@drawable/xml_stat_back"

81. />

82.<com.android.systemui.statusbar.Clock

83.android:textAppearance="@*android:style/TextAppearance.StatusBar.Icon"

84.android:layout_width="wrap_content"

85.android:layout_height="match_parent"

86.android:singleLine="true"

87.android:paddingRight="6dip"

88.android:gravity="center_vertical|left"

89./>

90.</LinearLayout>

91.

92.<LinearLayout android:id="@+id/ticker"

93.android:layout_width="match_parent"

94.android:layout_height="match_parent"

95.android:paddingLeft="6dip"

96.android:animationCache="false"

97.android:orientation="horizontal" >

98.<ImageSwitcher android:id="@+id/tickerIcon"

99.android:layout_width="wrap_content"

100.android:layout_height="match_parent"

101.android:layout_marginRight="8dip"

102.>

103.<com.android.systemui.statusbar.AnimatedImageView

104.android:layout_width="25dip"

105.android:layout_height="25dip"

106./>

107.<com.android.systemui.statusbar.AnimatedImageView

108.android:layout_width="25dip"

109.android:layout_height="25dip"

110./>

111.</ImageSwitcher>

112.<com.android.systemui.statusbar.TickerView android:id="@+id/tickerText"

113.android:layout_width="0dip"

114.android:layout_weight="1"

115.android:layout_height="wrap_content"

116.android:paddingTop="2dip"

117.android:paddingRight="10dip">

118.<TextView

119.android:textAppearance="@*android:style/TextAppearance.StatusBar.Ticker"

120.android:layout_width="match_parent"

121.android:layout_height="wrap_content"

122.android:singleLine="true"

123./>

124.<TextView

125.android:textAppearance="@*android:style/TextAppearance.StatusBar.Ticker"

126.android:layout_width="match_parent"

127.android:layout_height="wrap_content"

128.android:singleLine="true"

129./>

130.</com.android.systemui.statusbar.TickerView>

131.</LinearLayout>

132.

133.<com.android.systemui.statusbar.DateView android:id="@+id/date"

134.android:textAppearance="@*android:style/TextAppearance.StatusBar.Icon"

135.android:layout_width="wrap_content"

136.android:layout_height="match_parent"

137.android:singleLine="true"

138.android:gravity="center_vertical|left"

139.android:paddingLeft="6px"

140.android:paddingRight="6px"

141.android:background="@drawable/statusbar_background"

142./>

143. </com.android.systemui.statusbar.StatusBarView>

二 为按钮添加动态效果
修改frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarView.java
在类中新增加四个成员（须导入android.widget.ImageButton和android.content.Context）：

1. ImageButtonmHomeBtn;

2. ImageButtonmBackBtn;

3. ImageButtonmMenuBtn;

4. final Context mContext;

增加三个常量：(须导入android.view.KeyEvent;)
public static final int RESV_KEY_HOME = KeyEvent.KEYCODE_HOME;
public static final int RESV_KEY_BACK = KeyEvent.KEYCODE_BACK;
public static final int RESV_KEY_MENU = KeyEvent.KEYCODE_MENU;;
在构造函数StatusBarView中初始化mContext

1. public StatusBarView(Context context, AttributeSet attrs) {

2. super(context, attrs);

3. mContext=context;

4. }

注意”mContext=context;”须在”super(context, attrs);”后面，不然编译会报错
在onFinishInflate中，获取几个button 的handler，并设置touch事件，添加如下代码：

1. mHomeBtn =(ImageButton)findViewById(R.id.go_home);

2. mBackBtn =(ImageButton)findViewById(R.id.go_back);

3. mMenuBtn =(ImageButton)findViewById(R.id.pop_menu);

4.

5. mHomeBtn.setOnTouchListener(homeOnTouch);

6. mBackBtn.setOnTouchListener(backOnTouch);

7. mMenuBtn.setOnTouchListener(menuOnTouch);

各button的touch事件添加如下：

1. void sendIntent ( Intent intent )

2. {

3. mContext.sendBroadcast(intent);

4. }

5. privatevoid sendKeyIntent( int keycode){

6. Intentintent= new Intent(Intent.ACTION_ICONKEY_CHANGED);

7. intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);

8. intent.putExtra( "keycode" ,keycode);

9. sendIntent(intent);

10. }

11.

12. private OnTouchListenerhomeOnTouch= new OnTouchListener(){

13. //@Override

14. publicboolean onTouch(Viewv,MotionEventevent)

15. {

16. //TODOAuto-generatedmethodstub

17. switch (event.getAction()){

18. case MotionEvent.ACTION_UP:

19. {

20. sendKeyIntent(RESV_KEY_HOME);

21. }

22. break ;

23. }

24. returnfalse ;

25. }

26. };

27.

28. private OnTouchListenerbackOnTouch= new OnTouchListener(){

29. //@Override

30. publicboolean onTouch(Viewv,MotionEventevent)

31. {

32. //TODOAuto-generatedmethodstub

33. switch (event.getAction()){

34. case MotionEvent.ACTION_UP:

35. {

36. sendKeyIntent(RESV_KEY_BACK);

37. }

38. break ;

39. }

40. returnfalse ;

41. }

42. };

43.

44. private OnTouchListenermenuOnTouch= new OnTouchListener(){

45. //@Override

46. publicboolean onTouch(Viewv,MotionEventevent)

47. {

48. //TODOAuto-generatedmethodstub

49. switch (event.getAction()){

50. case MotionEvent.ACTION_UP:

51. {

52. sendKeyIntent(RESV_KEY_MENU);

53. }

54. break ;

55. }

56. returnfalse ;

57. }

58. };

为防止点击statusBar上的按钮， 触发标题栏的expend事件， 修改一下函数onInterceptTouchEvent，点击到不属于button区域时才允许解析Motion的event：

1. publicboolean onInterceptTouchEvent(MotionEventevent){

2. if ((event.getX()>mHomeBtn.getRight())

3. &&(event.getX()<mMenuBtn.getLeft())){

4. return mService.interceptTouchEvent(event)

5. ? true : super .onInterceptTouchEvent(event);

6. }

7. returnfalse ;

8. //returnmService.interceptTouchEvent(event)

9. //?true:super.onInterceptTouchEvent(event);

10. }

11. }

需要自己添加Intent
打开frameworks/base/core/java/android/content/Intent.java，增加下面的内容，由于我们的使用的API不公开，须加上/**@hide*/，不然编译会报错

1. /**

2.* @hide

3.*/

4.public static final String ACTION_ICONKEY_CHANGED ="android.intent.action.ICONKEY_CHANGED";

5.

接收并处理intent
修改StatusBarPolicy.java
目录:frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarPolicy.java
首先在构造函数中加入Intent的filter，注册号这个intent的receiver。
filter.addAction(Intent.ACTION_ICONKEY_CHANGED);
接着在private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() 加入Intent的receiver动作;

1. elseif (action.equals(Intent.ACTION_ICONKEY_CHANGED)){

2. Log.d(TAG, "ReceivedACTION_ICONKEY_CHANGED" );

3. updateIconKeyAction(intent);

4. }

及处理函数：
须导入以下包
import android.view.IWindowManager;
import android.os.SystemClock;
import android.view.KeyEvent;

1. privatefinalvoid updateIconKeyAction(Intentintent){

2. int keycode=intent.getIntExtra( "keycode" ,- 1 );

3. IWindowManagerwm=IWindowManager.Stub.asInterface(ServiceManager.getService( "window" ));

4.

5. if (keycode!=- 1 ){

6. long now=SystemClock.uptimeMillis();

7.

8. KeyEventdown= new KeyEvent(now,now,KeyEvent.ACTION_DOWN,keycode, 0 );

9. KeyEventup= new KeyEvent(now,now,KeyEvent.ACTION_UP,keycode, 0 );

10.

11. try {

12. wm.injectKeyEvent(down, false );

13. } catch (RemoteExceptione){

14. Log.i( "Input" , "DeadOjbectException" );

15. }

16.

17. try {

18. wm.injectKeyEvent(up, false );

19. } catch (RemoteExceptione){

20. Log.i( "Input" , "DeadOjbectException" );

21. }

22. }

23. }

StatusBar通知栏屏蔽按钮
当拉出expand的通知栏时，按钮的响应非常慢，这时最好将按钮给屏蔽掉，我们在 statusBarView.java中增加两个方法：

1. publicvoid hiddenHotIcons(){

2. mHomeBtn.setVisibility(View.INVISIBLE);

3. mBackBtn.setVisibility(View.INVISIBLE);

4. mMenuBtn.setVisibility(View.INVISIBLE);

5. }

6.

7. publicvoid showHotIcons(){

8. mHomeBtn.setVisibility(View.VISIBLE);

9. mBackBtn.setVisibility(View.VISIBLE);

10. mMenuBtn.setVisibility(View.VISIBLE);

11. }

拉出或收回通知栏中，就可以调用这个函数来显示或隐藏这几个按钮。
修改文件： statusBarService.java
目录：frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarService.java

1. void performExpand() {

2. if (SPEW) Slog.d(TAG, "performExpand: mExpanded=" + mExpanded);

3. if ((mDisabled & StatusBarManager.DISABLE_EXPAND) != 0) {

4. return ;

5. }

6. if (mExpanded) {

7. return;

8. }

9. mExpanded = true;

10. makeExpandedVisible();

11.mStatusBarView.hiddenHotIcons();

12. updateExpandedViewPos(EXPANDED_FULL_OPEN);

13. if (false) postStartTracing();

14. }

15. void performCollapse() {

16. if (SPEW) Slog.d(TAG, "performCollapse: mExpanded=" + mExpanded

17. + " mExpandedVisible=" + mExpandedVisible

18. + " mTicking=" + mTicking);

19.

20. if (!mExpandedVisible) {

21. return;

22. }

23. mExpandedVisible = false;

24. visibilityChanged(false);

25. mExpandedParams.flags |= WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;

26. mExpandedParams.flags &= ~WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;

27. mExpandedDialog.getWindow().setAttributes(mExpandedParams);

28. mTrackingView.setVisibility(View.GONE);

29. mExpandedView.setVisibility(View.GONE);

30.

31. mStatusBarView.showHotIcons();

32.

33. if ((mDisabled & StatusBarManager.DISABLE_NOTIFICATION_ICONS) == 0) {

34. setNotificationIconVisibility(true, com.android.internal.R.anim.fade_in);

35. }

36. if (mDateView.getVisibility() == View.VISIBLE) {

37. setDateViewVisibility(false, com.android.internal.R.anim.fade_out);

38. }

39.

40. if (!mExpanded) {

41. return;

42. }

43. mExpanded = false;

44. }

编译工程
#source /opt/android_froyo_smdk/build/envsetup.sh
#export TARGET_PRODUCT=full_smdkv210
#mmm frameworks/base/
把编译生成的相关文件放进SD卡对应的目录即可, 在伟研科技 WY-S5PV210开发板上的效果如下图