如何获取状态栏和软键按钮栏的高度?

How Get height of the Status Bar and Soft Key Buttons Bar?

在Android中有没有办法让软按钮栏和状态栏的大小一致?还是一种在没有这两个条的高度的情况下获取屏幕高度的方法? (它们并不总是相同的,以 nexus 7 为例)

Height of the Status Bar

状态栏的高度取决于屏幕尺寸,例如在 240 X 320 屏幕尺寸的设备中,状态栏高度为 20px,对于 320 X 480 屏幕尺寸的设备,状态栏高度为 25px,对于 的设备480 x 800 状态栏高度必须为 38px

所以我推荐使用这个脚本来获取状态栏高度

Rect rectangle = new Rect();
Window window = getWindow();
window.getDecorView().getWindowVisibleDisplayFrame(rectangle);
int statusBarHeight = rectangle.top;
int contentViewTop = window.findViewById(Window.ID_ANDROID_CONTENT).getTop();
int titleBarHeight= contentViewTop - statusBarHeight;

Log.i("*** Value :: ", "StatusBar Height= " + statusBarHeight + " , TitleBar Height = " + titleBarHeight); 

要在 Activity 的 onCreate() 方法上获取状态栏的高度,请使用此方法:

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

Soft Key Buttons Bar

为了在 Android KitKat (4.4) 中设置布局填充,此方法非常有用。使用它,您可以避免软按钮栏重叠在您的布局上。

getRealMetrics 方法仅适用于 API 17 和 +

@SuppressLint("NewApi")
private int getSoftButtonsBarHeight() {
    // getRealMetrics is only available with API 17 and +
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
        DisplayMetrics metrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(metrics);
        int usableHeight = metrics.heightPixels;
        getWindowManager().getDefaultDisplay().getRealMetrics(metrics);
        int realHeight = metrics.heightPixels;
        if (realHeight > usableHeight)
            return realHeight - usableHeight;
        else
            return 0;
    }
    return 0;
}

参考:

Height of status bar in Android

Dimension of soft buttons bar

对我来说,在android注释10中,我需要通过dimen获取导航栏高度:

fun getSoftNavigationBarSize(resources: Resources): Int {
    var result = 0
    val resourceId: Int = resources.getIdentifier("navigation_bar_height", "dimen", "android")
    if (resourceId > 0) {
        result = resources.getDimensionPixelSize(resourceId)
    }
    return result
}

我知道这个问题已经得到解答,但我只是发现这个解决方案似乎比其他解决方案更容易。我只对底部按钮栏进行了尝试。不过,我很确定状态栏的工作方式相同。

view.rootWindowInsets?.let { inset ->
    Log.e("XXX", "button bar height: ${inset.systemWindowInsetBottom}")
}

注意:此时您需要一个附加到 window 的视图。

 private void getStatusAndNavigationBarsHeight() {
        float deviceDensity = getResources().getDisplayMetrics().density;
        float statusHeight = 0;
        float navigationHeight = 0;
        Resources myResources = getApplicationContext().getResources();

        int idStatusBarHeight = myResources.getIdentifier( "status_bar_height", "dimen", "android");
        statusHeight = idStatusBarHeight > 0 ? getResources().getDimensionPixelSize(idStatusBarHeight)/deviceDensity : 0;
        statusHeight = Math.round(statusHeight);
        Log.d("StatusBar Height(dp):", String.valueOf(statusHeight));

        int idNavigationBarHeight = myResources.getIdentifier("navigation_bar_height", "dimen", "android");
        navigationHeight = idNavigationBarHeight > 0 ? getResources().getDimensionPixelSize(idNavigationBarHeight)/deviceDensity : 0;
        navigationHeight = Math.round(navigationHeight);
        Log.d("Navigation Bar Height(dp):", String.valueOf(navigationHeight));
    }