Android自定义状态栏statusBar替换系统SystemUI

文章主要参考http://blog.csdn.net/canney_chen/article/details/46042323#reply

公司的项目目标是自己开发一个状态栏，显示时间日期，蓝牙无线等状态

核心：statusBar是SystemUI的一部分，statusBar跟正常建立的Android app不同，它不能有主Activity，需要在服务中创建窗口画面。SystemUIService是SystemUI的入口处，是被系统启动，之后通过WindowsManager创建画面显示。

1、AndroidManifest.xml文件

package="com.android.systemui"

<uses-permission android:name="android.permission.STATUS_BAR_SERVICE" />/*这个可能不需要*/
<uses-permission android:name="android.permission.STATUS_BAR" />
<uses-permission android:name="android.permission.INTERNAL_SYSTEM_WINDOW" />/* 创建TYPE_STATUS_BAR类型窗体，需要此权限*/

<service android:name="SystemUIService"
    android:exported="true"
    />

/*不能设置启动Activity*/

2、 StatusIconView

public class StatusIconView extends LinearLayout {
    //图标
    private ImageView mIcon;

    public StatusIconView(Context context) {
        super(context);
    }

    public StatusIconView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }
    public StatusIconView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init(context, attrs, defStyle);
    }
    private void init(Context context, AttributeSet attrs, int defStyle) {
        LayoutInflater inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        inflater.inflate(R.layout.status_icon_view, this);
        mIcon = (ImageView) findViewById(R.id.icon);
    }

    public final void setIcon(int resId) {
        mIcon.setImageResource(resId);
    }

    public final ImageView getIconView(){
        return mIcon;
    }
}

需要的xml文件status_icon_view

3、SystemUIService

public class SystemUIService extends Service {
    private WindowManager wm = null;
    private WindowManager.LayoutParams statusBarParams = new WindowManager.LayoutParams();

    private LinearLayout statusBarLayout=null;
    private StatusBarViewHolder statusBarViewHolder = new StatusBarViewHolder();

    @Override
    public void onCreate() {
        super.onCreate();
        createStatusView();
        registerReceiver();
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
    /* 手机电池电量显示 */
    BroadcastReceiver phoneBatteryReceiver = new BroadcastReceiver(){
        public void onReceive(Context context, Intent intent) {
            if(intent.getAction().equals(Intent.ACTION_BATTERY_CHANGED)){

                int level = intent.getIntExtra("level", 0);
                int scale = intent.getIntExtra("scale", 100);
                int curPower = (level * 100 / scale);
                updateIcon(getBatteryImage(curPower), statusBarViewHolder.phoneBatteryIcon);
            }
        };
    };
    private void createStatusView(){

        Context context = getApplicationContext();
        statusBarLayout = new LinearLayout(context);
        //statusBarLayout.setGravity(Gravity.CENTER_VERTICAL);

        //statusBarLayout.setLayoutParams(new android.view.ViewGroup.LayoutParams(android.view.ViewGroup.LayoutParams.WRAP_CONTENT, android.view.ViewGroup.LayoutParams.WRAP_CONTENT));
        wm=(WindowManager)getApplicationContext().getSystemService(WINDOW_SERVICE);

        ((LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE)).inflate(R.layout.status_bar, statusBarLayout);

        findStatusBarViews();

        wm.addView(statusBarLayout, getStatusViewParams());
    }


    private WindowManager.LayoutParams getStatusViewParams(){

        statusBarParams = new WindowManager.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                (int) getResources().getDimension(
                        R.dimen.status_bar_height),
                WindowManager.LayoutParams.TYPE_STATUS_BAR,
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                        | WindowManager.LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING
                        | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH
                        | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
                        | WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
                PixelFormat.TRANSLUCENT);
        statusBarParams.flags |= WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
        statusBarParams.gravity = Gravity.TOP;
        statusBarParams.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
        statusBarParams.setTitle("StatusBar");
        statusBarParams.packageName = this.getPackageName();
        return statusBarParams;
    }

    private void findStatusBarViews() {
        statusBarViewHolder.datetimeTextView = (TextView) statusBarLayout.findViewById(R.id.datetime_textView);
        statusBarViewHolder.phoneUSBIcon = (StatusIconView)statusBarLayout.findViewById(R.id.usb_icon);
        statusBarViewHolder.phoneSDCardIcon = (StatusIconView)statusBarLayout.findViewById(R.id.sdcard_icon);
        statusBarViewHolder.phoneHotspotIcon = (StatusIconView)statusBarLayout.findViewById(R.id.hotspot_icon);
        statusBarViewHolder.phoneMobileIcon = (StatusIconView)statusBarLayout.findViewById(R.id.mobile_icon);
        statusBarViewHolder.phoneBluetoothIcon = (StatusIconView)statusBarLayout.findViewById(R.id.bluetooth_icon);
        statusBarViewHolder.phoneWifiIcon = (StatusIconView)statusBarLayout.findViewById(R.id.wifi_icon);
        statusBarViewHolder.phoneBatteryIcon = (StatusIconView)statusBarLayout.findViewById(R.id.battery_icon);

        statusBarViewHolder.phoneUSBIcon.setIcon(R.drawable.usb);
        statusBarViewHolder.phoneSDCardIcon.setIcon(R.drawable.sd);
        statusBarViewHolder.phoneBluetoothIcon.setIcon(R.drawable.btconnected);
        statusBarViewHolder.phoneWifiIcon.setIcon(R.drawable.wifi0);
    }

    private void updateIcon(int Icon, StatusIconView icon){
        icon.setIcon(Icon);
    }
    private int getBatteryImage(int battery) {
        int resId;
        if(battery > 0 && battery <= 10){
            resId = R.drawable.battery0;
        }else if(battery > 10 && battery <= 40){
            resId = R.drawable.battery1;
        }else if(battery > 40 && battery <= 60){
            resId = R.drawable.battery2;
        }else if(battery > 60 && battery <= 80){
            resId = R.drawable.battery3;
        }else if(battery > 80 && battery <= 100){resId = R.drawable.battery4;
        }else{
            resId = R.drawable.battery0;
        }

        return resId;
    }/**
     * 注册状态栏更新信息的广播
     */
    private void registerReceiver() {

        registerReceiver(phoneBatteryReceiver , new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    }
    /**
     * 状态栏的所有图标
     */
    private class StatusBarViewHolder{
        TextView datetimeTextView;
        StatusIconView phoneUSBIcon;
        StatusIconView phoneSDCardIcon;
        StatusIconView phoneHotspotIcon;
        StatusIconView phoneMobileIcon;
        StatusIconView phoneBluetoothIcon;
        StatusIconView phoneWifiIcon;
        StatusIconView phoneBatteryIcon;
    }
    @Override
    public void onDestroy(){
        unregisterReceiver();
        wm.removeView(statusBarLayout);
        super.onDestroy();
    }
    private void unregisterReceiver(){
        unregisterReceiver(phoneBatteryReceiver);
    }

    public String GetSysTime() {
        long sysTime = System.currentTimeMillis();
        String time = "";
        boolean is24Hour =  DateFormat.is24HourFormat(getApplicationContext());
        /** @brief Get the same time as the system. */
        if(is24Hour) {
            time = (String) DateFormat.format("yyyy-MM-dd HH:mm:ss", sysTime);
        }
        else{
            time = (String) DateFormat.format("yyyy-MM-dd hh:mm:ss", sysTime);
        }
        return time;
    }

需要的xml文件status_bar

注意：以上工程一定要替换系统的SystemUI源码，编译后烧写内核才可以