系统状态栏 & 程序TiTleBar 高度的获取

只有在activity的onWindowFocusChanged方法中才能获取到系统状态栏以及TiTleBar的高度

    @Override
    public void onWindowFocusChanged(boolean hasFocus) {
        super.onWindowFocusChanged(hasFocus);
        System.out.println("-+--+--+-onWindowFocusChanged-+--+--+-");
        Rect rect = new Rect();
        getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);
        int top = rect.top;
        System.out.println("top:"+top);
        
        View view = getWindow().findViewById(Window.ID_ANDROID_CONTENT);
        int top2 = view.getTop();
        System.out.println("top2:"+top2);
        
        int height = getWindowManager().getDefaultDisplay().getHeight();
        System.out.println("height:"+height);
        
    }

更改清单文件<application>节点下的theme属性后，参考日志信息，很容易得出以上top以及top2的含义

android:theme="@android:style/Theme.Light"
07-11 22:56:00.483: I/System.out(7934): -+--+--+-onWindowFocusChanged-+--+--+-
07-11 22:56:00.483: I/System.out(7934): top:75
07-11 22:56:00.483: I/System.out(7934): top2:150
07-11 22:56:00.483: I/System.out(7934): height:1776

android:theme="@android:style/Theme.Light.NoTitleBar"
07-11 23:35:14.615: I/System.out(11297): -+--+--+-onWindowFocusChanged-+--+--+-
07-11 23:35:14.615: I/System.out(11297): top:75
07-11 23:35:14.615: I/System.out(11297): top2:75
07-11 23:35:14.615: I/System.out(11297): height:1776

android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen"
07-11 23:41:02.276: I/System.out(13137): -+--+--+-onWindowFocusChanged-+--+--+-
07-11 23:41:02.276: I/System.out(13137): top:75
07-11 23:41:02.276: I/System.out(13137): top2:0
07-11 23:41:02.276: I/System.out(13137): height:1776

 

结论：

①获取系统系统状态栏高度(也就是系统最上方显示时间信号以及notification通知的部分)

Rect rect = new Rect();

getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);

int statebarHeight= rect.top;

②获取系统状态栏以及程序TiTleBar高度和

View view = getWindow().findViewById(Window.ID_ANDROID_CONTENT);

int viewHeight = view.getTop();

③以上②减去①就是程序状态栏的高度