CODEWITHSUNDEEP
android
Direz Gunstad
Direz Gunstad

Reputation: 157

Dimension of soft buttons bar

Is there a way to determine the dimension (width) of the menu bar of devices without hard menu buttons? (like the archos devices).

I need to know the usable dimension of the screen...

Upvotes: 10

Views: 13631

Answers (4)

Ho Luong
Ho Luong

Reputation: 754

for me, in android note 10, I need to get navigation bar height by dimen:

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

}

Upvotes: 0

Quentin S.
Quentin S.

Reputation: 1469

This method is very useful in order to set the layout padding in Android KitKat (4.4). Using this, you can avoid the soft buttons bar overlapping over your layout.

The getRealMetrics method is only available with API 17 and +, but I'm only using the following method I wrote for devices on API 19+

@SuppressLint("NewApi")
private int getSoftbuttonsbarHeight() {
    // getRealMetrics is only available with API 17 and +
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
        return 0;
    }

    DisplayMetrics metrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(metrics);
    int usableHeight = metrics.heightPixels;
    getWindowManager().getDefaultDisplay().getRealMetrics(metrics);
    int realHeight = metrics.heightPixels;

    return realHeight > usableHeight ? realHeight - usableHeight : 0;
}

Tested upon Nexus 5 & Nexus 7 2013.

Upvotes: 15

cincy_anddeveloper
cincy_anddeveloper

Reputation: 1152

A very late answer but for anyone that encounters this problem. A simple way to get the amount of usable space offsetting any soft keys/navigation bar or even the status bar, is to use getWindowVisibleDisplayFrame(Rect) from the Apps DecorView. This will load a Rect object with the dimension of the display that is actually usable.

Since you cannot directly get a reference to the Activiy's DecorView, you need to first get the Activity's window using the accessor method, getWindow(). This will return the window object that holds the Activity and other screen elements. To get the decorView that contains the activity as well as the screen decorations i.e. the status bar, navigation bar/soft button bar, call accessor method getDecorView(). Once your have a reference to the DecorView call getWindowVisibleDisplayFrame(Rect) and you will have a loaded Rect object.

Upvotes: 4

user363349
user363349

Reputation: 1318

Starting Andorid 3.2, the height of system status bar is not included in DisplayMetrics's height, you have to use undocumented APIs (Display.getRawWidth() and Display.getRawHeight()) to get the physical screen width or height.

Method mGetRawW = Display.class.getMethod("getRawWidth");
Method mGetRawH = Display.class.getMethod("getRawHeight");

int nW = (Integer)mGetRawW.invoke(dp);
int nH = (Integer)mGetRawH.invoke(dp);

UPDATED: For API 13-16, you have to use the above code to get real width/height. For API 17+, you can now use the new public API, Display.getRealSize()

Upvotes: 0

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