获取手机屏幕区域高度
    public int getWindowArea() {
        Display display = getWindowManager().getDefaultDisplay();
        Point point = new Point();
        display.getSize(point);
        int width = point.x;
        int height = point.y;
        return height;
    }

应用区域高度
    public int getApplicationArea() {
        Rect rect = new Rect();     
        getWindow().getDecorView().                                               
        getWindowVisibleDisplayFrame(rect);
        int width = rect.width();
        int height = rect.height();
        return height;
    }

 获取view绘制区域高度
    public int getDrawArea() {
        Rect rect = new Rect(); 
        getWindow().findViewById(Window.ID_ANDROID_CONTENT)     
                   .getDrawingRect(rect);
        int width = rect.width();
        int height = rect.height();
        return height;
    }

android 屏幕划分