在android6.0中，状态栏的高度为24dp

 <!-- Height of the status bar -->
 <dimen name="status_bar_height">24dp</dimen>
 <!-- Height of the bottom navigation / system bar. -->
 <dimen name="navigation_bar_height">48dp</dimen>

你可以在源代码中找到答案:frameworks\base\core\res\res\values\ dimensions .xml

试试这个:

    Rect rect = new Rect();
    Window win = this.getWindow();
    win.getDecorView().getWindowVisibleDisplayFrame(rect);
    int statusBarHeight = rect.top;
    int contentViewTop = win.findViewById(Window.ID_ANDROID_CONTENT).getTop();
    int titleBarHeight = contentViewTop - statusBarHeight;
    Log.d("ID-ANDROID-CONTENT", "titleBarHeight = " + titleBarHeight );

它没有为我工作在onCreate方法的活动，但当我把它放在onClickListener，并给我一个25的测量

在Android 4.1及更高版本上，你可以将应用程序的内容设置为显示在状态栏后面，这样当状态栏隐藏或显示时，内容不会调整大小。为此，使用SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN。你可能还需要使用SYSTEM_UI_FLAG_LAYOUT_STABLE来帮助你的应用保持一个稳定的布局。

当您使用这种方法时，您有责任确保应用程序UI的关键部分(例如，地图应用程序中的内置控件)最终不会被系统栏覆盖。这可能会使你的应用程序无法使用。在大多数情况下，你可以通过添加android:fitsSystemWindows属性到你的XML布局文件，设置为true来处理这个问题。这将调整父ViewGroup的填充，为系统窗口留出空间。这对于大多数应用程序来说已经足够了。

In some cases, however, you may need to modify the default padding to get the desired layout for your app. To directly manipulate how your content lays out relative to the system bars (which occupy a space known as the window's "content insets"), override fitSystemWindows(Rect insets). The fitSystemWindows() method is called by the view hierarchy when the content insets for a window have changed, to allow the window to adjust its content accordingly. By overriding this method you can handle the insets (and hence your app's layout) however you want.

形式: https://developer.android.com/training/system-ui/status.html#behind

这个问题最近与我有关，因为我的Pixel 3XL上的缺口。我真的很喜欢android开发者的解决方案，但我希望能够随心所欲地获得状态栏的高度，因为这对于我需要播放的全屏动画是特别必要的。下面的函数启用了一个可靠的查询:

private val DEFAULT_INSET = 96
fun getInsets(view: View?): Int {
     var inset = DEFAULT_INSET
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {//Safe because only P supports notches
          inset = view?.rootWindowInsets?.stableInsetTop ?: DEFAULT_INSET
     }
     return inset
}

fun blurView(rootView: View?, a: SpacesActivity?) {
    val screenBitmap = getBitmapFromView(rootView!!)
    val heightDifference = getInsets(rootView)
    val croppedMap = Bitmap.createBitmap(
                    screenBitmap, 0, heightDifference,
                    screenBitmap.width,
                    screenBitmap.height - heightDifference)
    val blurredScreen = blurBitmap(croppedMap)
    if (blurredScreen != null) {
         val myDrawable = BitmapDrawable(a!!.resources, blurredScreen)
         a.errorHudFrameLayout?.background = myDrawable
         a.appBarLayout?.visibility = View.INVISIBLE
   }
}

然后在活动课上

fun blurView() {
    this.runOnUiThread {
        Helper.blurView(this)
    }
}

您当然希望将活动的弱引用传递给静态Helper类方法参数，但为了简洁起见，我在本例中没有这样做。由于同样的原因，blurbitmap和errorHudFrameLayout被省略了，因为它们并不直接与获取状态栏的高度有关。

是的，当我尝试使用视图时，它提供了25px的结果。 以下是整个代码:

public class SpinActivity extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        LinearLayout lySpin = new LinearLayout(this);
        lySpin.setOrientation(LinearLayout.VERTICAL);       
        lySpin.post(new Runnable()
        {
            public void run()
            {
                Rect rect = new Rect();
                Window window = getWindow();
                window.getDecorView().getWindowVisibleDisplayFrame(rect);
                int statusBarHeight = rect.top;
                int contentViewTop = 
                    window.findViewById(Window.ID_ANDROID_CONTENT).getTop();
                int titleBarHeight = contentViewTop - statusBarHeight;
                System.out.println("TitleBarHeight: " + titleBarHeight 
                    + ", StatusBarHeight: " + statusBarHeight);
            }
        }
    }
}

我有同样的问题，必须在onCreate中获得状态栏的高度。这对我很有用。

private static final int LOW_DPI_STATUS_BAR_HEIGHT = 19;

private static final int MEDIUM_DPI_STATUS_BAR_HEIGHT = 25;

private static final int HIGH_DPI_STATUS_BAR_HEIGHT = 38;

在onCreate内部:

DisplayMetrics displayMetrics = new DisplayMetrics();
((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getMetrics(displayMetrics);

int statusBarHeight;

switch (displayMetrics.densityDpi) {
    case DisplayMetrics.DENSITY_HIGH:
        statusBarHeight = HIGH_DPI_STATUS_BAR_HEIGHT;
        break;
    case DisplayMetrics.DENSITY_MEDIUM:
        statusBarHeight = MEDIUM_DPI_STATUS_BAR_HEIGHT;
        break;
    case DisplayMetrics.DENSITY_LOW:
        statusBarHeight = LOW_DPI_STATUS_BAR_HEIGHT;
        break;
    default:
        statusBarHeight = MEDIUM_DPI_STATUS_BAR_HEIGHT;
}

See:

http://developer.android.com/reference/android/util/DisplayMetrics.html http://developer.android.com/guide/practices/ui_guidelines/icon_design.html