Getting the dimensions of the soft keyboard

Question

Is there a way to know the size of the keyboard that is shown in the screen?

I am using Cocos2dx for programming, but I want to know the height of the keyboard shown in screen in the part of Android or the part of Cocos, it does not matter.

I know that Keyboard has a getHeight() method but I don't want to create new keyboards, i want to use the default one.

Solution 1

We did it with this

myLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {

                @Override
                public void onGlobalLayout() {

                    Rect r = new Rect();
                    parent.getWindowVisibleDisplayFrame(r);

                    int screenHeight = parent.getRootView().getHeight();
                    int heightDifference = screenHeight - (r.bottom - r.top);
                    Log.d("Keyboard Size", "Size: " + heightDifference);

                }
            });

We only resize views with the keyboard, so we could use this.

Solution 2

Rect r = new Rect();
View rootview = this.getWindow().getDecorView(); // this = activity
rootview.getWindowVisibleDisplayFrame(r);

Result of this is the amount of space your application uses on screen (works even when activity is not resized). Obviously remaining screen space will be used by the keyboard ( if its visible)

Found id up here: https://github.com/freshplanet/ANE-KeyboardSize/blob/master/android/src/com/freshplanet/ane/KeyboardSize/getKeyboardY.java

Solution 3

if your activity is not fullscreen, using code below:

content.getViewTreeObserver().addOnGlobalLayoutListener(
            new ViewTreeObserver.OnGlobalLayoutListener() {

                @Override
                public void onGlobalLayout() {
                    // TODO Auto-generated method stub
                    if (keyBoardHeight <= 100) {
                        Rect r = new Rect();
                        content.getWindowVisibleDisplayFrame(r);

                        int screenHeight = content.getRootView()
                                .getHeight();
                        int heightDifference = screenHeight
                                - (r.bottom - r.top);
                        int resourceId = getResources()
                                .getIdentifier("status_bar_height",
                                        "dimen", "android");
                        if (resourceId > 0) {
                            heightDifference -= getResources()
                                    .getDimensionPixelSize(resourceId);
                        }
                        if (heightDifference > 100) {
                            keyBoardHeight = heightDifference;
                        }

                        Log.d("Keyboard Size", "Size: " + heightDifference);
                    }
                    // boolean visible = heightDiff > screenHeight / 3;
                }
            });

Solution 4

If you want to calculate the Virtual Keyboard height while your activity does not change in size (adjustPan) then you can use this sample:

https://github.com/siebeprojects/samples-keyboardheight

It uses a hidden window in order to calculate the height difference between the window and the root view of the activity.

Solution 5

You can't tell. No, really: you simply can't tell.

The keyboard does not need to be any particular shape. It does not have to be placed at the bottom of the screen (many of the most popular options are not), it does not have to keep its current size when you change text fields (almost none do depending on the flags). It does not even have to be rectangular. It may also just take over the entire screen.

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