硬编码大小或使用反射来获取status_bar_height的值被认为是不好的做法。Chris Banes在纽约Droidcon上讲过这个。获取状态栏大小的推荐方法是通过OnApplyWindowInsetsListener:

myView.setOnApplyWindowInsetsListener { view, insets -> {
  val statusBarSize = insets.systemWindowInsetTop
  return insets
}

这是在API 20中添加的，也可以通过ViewAppCompat进行反向移植。

感谢@Niklas +1，这是正确的方法。

public class MyActivity extends Activity implements android.support.v4.View.OnApplyWindowInsetsListener {

    Rect windowInsets;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.my_activity);

        View rootview = findViewById(android.R.id.content);

        android.support.v4.View.ViewCompat.setOnApplyWindowInsetsListener(rootview, this);
    }

    android.support.v4.View.WindowInsetsCompat android.support.v4.View.OnApplyWindowInsetsListener.OnApplyWindowInsets(View v, android.support.v4.View.WindowInsetsCompat insets)
    {
        windowInsets = new Rect();
        windowInsets.set(insets.getSystemWindowInsetLeft(), insets.getSystemWindowInsetTop(), insets.getSystemWindowInsetRight(), insets.getSystemWindowInsetBottom());
        //StatusBarHeight = insets.getSystemWindowInsetTop();

        //Refresh/Adjust view accordingly

        return insets;
    }
}

请原谅，如果代码不是100%正确，从Xamarin c#转换，但这是它的公正。工作与缺口等。

上面的答案对某些人不起作用的原因是，在视图准备好渲染之前，您无法获得视图的维度。使用一个OnGlobalLayoutListener来获得所说的维度，当你实际上可以:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    final ViewGroup decorView = (ViewGroup) this.getWindow().getDecorView();
    decorView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            if (Build.VERSION.SDK_INT >= 16) {
                decorView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
            } else {
                // Nice one, Google
                decorView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
            }
            Rect rect = new Rect();
            decorView.getWindowVisibleDisplayFrame(rect);
            rect.top; // This is the height of the status bar
        }
    }
}

这是最可靠的方法。

这也适用于引用链接

public int getStatusBarHeight() {
  int result = 0;
  int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
  if (resourceId > 0) {
      result = getResources().getDimensionPixelSize(resourceId);
  }
  return result;
}

Kotlin版本，结合了两个最佳解决方案

fun getStatusBarHeight(): Int {
    val resourceId = resources.getIdentifier("status_bar_height", "dimen", "android")
    return if (resourceId > 0) resources.getDimensionPixelSize(resourceId)
    else Rect().apply { window.decorView.getWindowVisibleDisplayFrame(this) }.top
}

如果存在，则接受status_bar_height值 如果status_bar_height不存在，则从Window decor计算状态栏高度

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);
            }
        }
    }
}