How do I detect if software keyboard is visible on Android Device or not?

Question

Is there a way in Android to detect if the software (a.k.a. "soft") keyboard is visible on screen?

Answer 1

This works for me. Maybe this is always the best way for all versions.

It would be effective to make a property of keyboard visibility and observe this changes delayed because the onGlobalLayout method calls many times. Also it is good to check the device rotation and windowSoftInputMode is not adjustNothing.

boolean isKeyboardShowing = false;
void onKeyboardVisibilityChanged(boolean opened) {
    print("keyboard " + opened);
}

// ContentView is the root view of the layout of this activity/fragment    
contentView.getViewTreeObserver().addOnGlobalLayoutListener(
    new ViewTreeObserver.OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {

        Rect r = new Rect();
        contentView.getWindowVisibleDisplayFrame(r);
        int screenHeight = contentView.getRootView().getHeight();

        // r.bottom is the position above soft keypad or device button.
        // if keypad is shown, the r.bottom is smaller than that before.
        int keypadHeight = screenHeight - r.bottom;

        Log.d(TAG, "keypadHeight = " + keypadHeight);

        if (keypadHeight > screenHeight * 0.15) { // 0.15 ratio is perhaps enough to determine keypad height.
            // keyboard is opened
            if (!isKeyboardShowing) {
                isKeyboardShowing = true
                onKeyboardVisibilityChanged(true)
            }
        }
        else {
            // keyboard is closed
            if (isKeyboardShowing) {
                isKeyboardShowing = false
                onKeyboardVisibilityChanged(false)
            }
        }
    }
});

Answer 2

try this:

InputMethodManager imm = (InputMethodManager) getActivity()
            .getSystemService(Context.INPUT_METHOD_SERVICE);

    if (imm.isAcceptingText()) {
        writeToLog("Software Keyboard was shown");
    } else {
        writeToLog("Software Keyboard was not shown");
    }

Answer 3

I created a simple class that can be used for this: https://github.com/ravindu1024/android-keyboardlistener. Just copy it in to your project and use as follows:

KeyboardUtils.addKeyboardToggleListener(this, new KeyboardUtils.SoftKeyboardToggleListener()
{
    @Override
    public void onToggleSoftKeyboard(boolean isVisible)
    {
        Log.d("keyboard", "keyboard visible: "+isVisible);
    }
});

Answer 4

Very Easy

1. Put id on your root view

rootView is just a view pointing to my root view in this case a relative layout:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/addresses_confirm_root_view"
                android:background="@color/WHITE_CLR">

2. Initialize your root view in your Activity:

RelativeLayout rootView = (RelativeLayout) findViewById(R.id.addresses_confirm_root_view);

3. Detect if keyboard is opened or closed by using getViewTreeObserver()

    rootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                int heightDiff = rootView.getRootView().getHeight() - rootView.getHeight();
                
                if (heightDiff > 100) { // Value should be less than keyboard's height 
                    Log.e("MyActivity", "keyboard opened");
                } else { 
                    Log.e("MyActivity", "keyboard closed");
                }
            }
        });

Answer 5

With the new feature WindowInsetsCompat in androidx core release 1.5.0-alpha02 you could check the visibility of the soft keyboard easily as below

Quoting from reddit comment

val View.keyboardIsVisible: Boolean
    get() = WindowInsetsCompat
        .toWindowInsetsCompat(rootWindowInsets)
        .isVisible(WindowInsetsCompat.Type.ime())

Some note about backward compatibility, quoting from release notes

New Features

The WindowInsetsCompat APIs have been updated to those in the platform in Android 11. This includes the new ime() inset type, which allows checking the visibility and size of the on-screen keyboard.

Some caveats about the ime() type, it works very reliably on API 23+ when your Activity is using the adjustResize window soft input mode. If you’re instead using the adjustPan mode, it should work reliably back to API 14.

References

• Twitter WindowInsetsCompat announcement
• Reddit thread
• Androidx Core 1.5.0-alpha02 release notes
• WindowInsetsCompat Docs

Answer 6

So after a long time of playing around with AccessibilityServices, window insets, screen height detection, etc, I think I found a way to do this.

Disclaimer: it uses a hidden method in Android, meaning it might not be consistent. However, in my testing, it seems to work.

The method is InputMethodManager#getInputMethodWindowVisibleHeight(), and it's existed since Lollipop (5.0).

Calling that returns the height, in pixels, of the current keyboard. In theory, a keyboard shouldn't be 0 pixels tall, so I did a simple height check (in Kotlin):

val imm by lazy { context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager }
if (imm.inputMethodWindowVisibleHeight > 0) {
    //keyboard is shown
else {
    //keyboard is hidden
}

I use Android Hidden API to avoid reflection when I call hidden methods (I do that a lot for the apps I develop, which are mostly hacky/tuner apps), but this should be possible with reflection as well:

val imm by lazy { context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager }
val windowHeightMethod = InputMethodManager::class.java.getMethod("getInputMethodWindowVisibleHeight")
val height = windowHeightMethod.invoke(imm) as Int
//use the height val in your logic

Answer 7

I used this as a basis: https://rogerkeays.com/how-to-check-if-the-software-keyboard-is-shown-in-android

/**
* To capture the result of IMM hide/show soft keyboard
*/
public class IMMResult extends ResultReceiver {
     public int result = -1;
     public IMMResult() {
         super(null);
}

@Override 
public void onReceiveResult(int r, Bundle data) {
    result = r;
}

// poll result value for up to 500 milliseconds
public int getResult() {
    try {
        int sleep = 0;
        while (result == -1 && sleep < 500) {
            Thread.sleep(100);
            sleep += 100;
        }
    } catch (InterruptedException e) {
        Log.e("IMMResult", e.getMessage());
    }
    return result;
}
}

Then wrote this method:

public boolean isSoftKeyboardShown(InputMethodManager imm, View v) {
    
    IMMResult result = new IMMResult();
    int res;
    
    imm.showSoftInput(v, 0, result);

    // if keyboard doesn't change, handle the keypress
    res = result.getResult();
    if (res == InputMethodManager.RESULT_UNCHANGED_SHOWN ||
            res == InputMethodManager.RESULT_UNCHANGED_HIDDEN) {

        return true;
    }
    else
        return false;

}

You may then use this to test all fields (EditText, AutoCompleteTextView, etc) that may have opened a softkeyboard:

    InputMethodManager imm = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
    if(isSoftKeyboardShown(imm, editText1) | isSoftKeyboardShown(imm, autocompletetextview1))
        //close the softkeyboard
        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);

Addmittely not an ideal solution, but it gets the job done.

Answer 8

You can use WindowInsetsCompat from androidx.core (version 1.5.0-rc01). This code will work from API 21 and above. Kotlin code example:

ViewCompat.setOnApplyWindowInsetsListener(root) { v, insets ->
    val isKeyboardVisible = insets.isVisible(WindowInsetsCompat.Type.ime())
    if (isKeyboardVisible) {
    }
}

root is the root view of your Activity.

Update

Today I was looking for how to detect keyboard visibility. At first, this code was not working. So I had to:

1. Add android:windowSoftInputMode="adjustResize" to my AndroidManifest.xml file:

xml
        <activity android:name="com.soumicslabs.activitykt.StartActivity"
            android:theme="@style/AccountKitTheme.Default"
          android:configChanges="orientation|screenSize"
          android:screenOrientation="portrait"
          android:windowSoftInputMode="adjustResize"
          />

2. In your activity, set WindowCompat.setDecorFitsSystemWindows(window, false), this tells android that we want to manually handle things/don't want to use system defaults:

        val window = this.window
        WindowCompat.setDecorFitsSystemWindows(window, false)  // <-- this tells android not to use system defaults, so we have to setup quite a lot of behaviors manually

3. Finally, set you onApplyWindowInsetsListener:

val callBack = OnApplyWindowInsetsListener { view, insets ->
            val imeHeight = insets?.getInsets(WindowInsetsCompat.Type.ime())?.bottom?:0
            Log.e("tag", "onKeyboardOpenOrClose imeHeight = $imeHeight")
// todo: logic
val isKeyboardVisible = insets.isVisible(WindowInsetsCompat.Type.ime())
    if (isKeyboardVisible) {
       // do something
    }else{
        // do something else
    }
    insets?: WindowInsetsCompat(null)
  }

ViewCompat.setOnApplyWindowInsetsListener(mainContainer, callBack)

This worked for me.

Answer 9

You can use the callback result of showSoftInput() and hideSoftInput() to check for the status of the keyboard. Full details and example code at

https://rogerkeays.com/how-to-check-if-the-software-keyboard-is-shown-in-android

Answer 10

You can refer to this answer - https://stackoverflow.com/a/24105062/3629912

It worked for me everytime.

adb shell dumpsys window InputMethod | grep "mHasSurface"

It will return true, if software keyboard is visible.

Answer 11

This was much less complicated for the requirements I needed. Hope this might help:

On the MainActivity:

public void dismissKeyboard(){
    InputMethodManager imm =(InputMethodManager)this.getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.hideSoftInputFromWindow(mSearchBox.getWindowToken(), 0);
    mKeyboardStatus = false;
}

public void showKeyboard(){
    InputMethodManager imm =(InputMethodManager)this.getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
    mKeyboardStatus = true;
}

private boolean isKeyboardActive(){
    return mKeyboardStatus;
}

The default primative boolean value for mKeyboardStatus will be initialized to false.

Then check the value as follows, and perform an action if necessary:

 mSearchBox.requestFocus();
    if(!isKeyboardActive()){
        showKeyboard();
    }else{
        dismissKeyboard();
    }

Answer 12

This should work if you need to check keyboard status:

fun Activity.isKeyboardOpened(): Boolean {
    val r = Rect()

    val activityRoot = getActivityRoot()
    val visibleThreshold = dip(UiUtils.KEYBOARD_VISIBLE_THRESHOLD_DP)

    activityRoot.getWindowVisibleDisplayFrame(r)

    val heightDiff = activityRoot.rootView.height - r.height()

    return heightDiff > visibleThreshold;
}

fun Activity.getActivityRoot(): View {
    return (findViewById<ViewGroup>(android.R.id.content)).getChildAt(0);
}

Where UiUtils.KEYBOARD_VISIBLE_THRESHOLD_DP = 100 and dip() is an anko func that convert dpToPx:

fun dip(value: Int): Int {
    return (value * Resources.getSystem().displayMetrics.density).toInt()
}

Answer 13

There's finally a direct way starting from Android R based on Kotlin now.

 val imeInsets = requireView().rootWindowInsets.isVisible(WindowsInsetsCompat.Type.ime()) 
    if (imeInsets) { 
     //Ime is visible
     //Lets move our view by the height of the IME
     view.translationX = imeInsets.bottom }

Answer 14

I did this by setting a GlobalLayoutListener, as follows:

final View activityRootView = findViewById(R.id.activityRoot);
activityRootView.getViewTreeObserver().addOnGlobalLayoutListener(
        new OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                int heightView = activityRootView.getHeight();
                int widthView = activityRootView.getWidth();
                if (1.0 * widthView / heightView > 3) {
                    //Make changes for Keyboard not visible
                } else {
                    //Make changes for keyboard visible
                }
            }
        });

Answer 15

Try this code it's really working if KeyboardShown is Shown then this function return true value....

private final String TAG = "TextEditor";
private TextView mTextEditor;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_editor);
    mTextEditor = (TextView) findViewById(R.id.text_editor);
    mTextEditor.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            isKeyboardShown(mTextEditor.getRootView());
        }
    });
}

private boolean isKeyboardShown(View rootView) {
    /* 128dp = 32dp * 4, minimum button height 32dp and generic 4 rows soft keyboard */
    final int SOFT_KEYBOARD_HEIGHT_DP_THRESHOLD = 128;

    Rect r = new Rect();
    rootView.getWindowVisibleDisplayFrame(r);
    DisplayMetrics dm = rootView.getResources().getDisplayMetrics();
    /* heightDiff = rootView height - status bar height (r.top) - visible frame height (r.bottom - r.top) */
    int heightDiff = rootView.getBottom() - r.bottom;
    /* Threshold size: dp to pixels, multiply with display density */
    boolean isKeyboardShown = heightDiff > SOFT_KEYBOARD_HEIGHT_DP_THRESHOLD * dm.density;

    Log.d(TAG, "isKeyboardShown ? " + isKeyboardShown + ", heightDiff:" + heightDiff + ", density:" + dm.density
            + "root view height:" + rootView.getHeight() + ", rect:" + r);

    return isKeyboardShown;
}

Answer 16

In my case i had only one EditText to manage in my layout so i came up whit this solution. It works well, basically it is a custom EditText which listens for focus and sends a local broadcast if the focus changes or if the back/done button is pressed. To work you need to place a dummy View in your layout with android:focusable="true" and android:focusableInTouchMode="true" because when you call clearFocus() the focus will be reassigned to the first focusable view. Example of dummy view:

<View
android:layout_width="1dp"
android:layout_height="1dp"
android:focusable="true"
android:focusableInTouchMode="true"/>

Additional infos

The solution which detects the difference in layout changes doesn't work very well because it strongly depends on screen density, since 100px can be a lot in a certain device and nothing in some others you could get false positives. Also different vendors have different keyboards.

Answer 17

As you might know android Software keyboard will be visible only when there is a possible event of typing. In other words Keyboard get visible only when EditText is focused. that means you can get weather the Keyboard is visible or not by using OnFocusChangeListener.

//Declare this Globally

public boolean isKeyBoardVisible = false;

//In OnCreate *[For Activity]*, OnCreateView *[For Fragment]*

text_send.setOnFocusChangeListener(new View.OnFocusChangeListener() {

    @Override
    public void onFocusChange(View v, boolean hasFocus) {
        if(hasFocus)
            isKeyBoardVisible = true;
        else
            isKeyBoardVisible = false;
    }
});

Now you can use isKeyBoardVisible variable anywhere in the class to get weather the keyboard is Open or Not. It worked well for me.

Note: This process doesn't work when the Keyboard is opened programmatically using InputMethodManager because that doesn't invoke OnFocusChangeListener.

Answer 18

A little bit more compacted Kotlin version based on the answer of @bohdan-oliynyk

private const val KEYBOARD_VISIBLE_THRESHOLD_DP = 100

fun Activity.isKeyboardOpen(): Boolean {
    fun convertDpToPx(value: Int): Int =
        (value * Resources.getSystem().displayMetrics.density).toInt()

    val rootView = findViewById<View>(android.R.id.content)
    val visibleThreshold = Rect()
    rootView.getWindowVisibleDisplayFrame(visibleThreshold)
    val heightDiff = rootView.height - visibleThreshold.height()

    val accessibleValue = convertDpToPx(KEYBOARD_VISIBLE_THRESHOLD_DP)

    return heightDiff > accessibleValue
}

fun Activity.isKeyboardClosed(): Boolean {
    return isKeyboardOpen().not()
}

Answer 19

In Android you can detect through ADB shell. I wrote and use this method:

{
        JSch jsch = new JSch();
        try {
            Session session = jsch.getSession("<userName>", "<IP>", 22);
            session.setPassword("<Password>");
            Properties config = new Properties();
            config.put("StrictHostKeyChecking", "no");
            session.setConfig(config);
            session.connect();

            ChannelExec channel = (ChannelExec)session.openChannel("exec");
            BufferedReader in = new BufferedReader(new    
            InputStreamReader(channel.getInputStream()));
            channel.setCommand("C:/Android/android-sdk/platform-tools/adb shell dumpsys window 
            InputMethod | findstr \"mHasSurface\"");
            channel.connect();

            String msg = null;
            String msg2 = " mHasSurface=true";

            while ((msg = in.readLine()) != null) {
                Boolean isContain = msg.contains(msg2);
                log.info(isContain);
                if (isContain){
                    log.info("Hiding keyboard...");
                    driver.hideKeyboard();
                }
                else {
                    log.info("No need to hide keyboard.");
                }
            }

            channel.disconnect();
            session.disconnect();

        } catch (JSchException | IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}

Answer 20

final View activityRootView = findViewById(R.id.rootlayout);
activityRootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {

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

            int screenHeight = activityRootView.getRootView().getHeight();
            Log.e("screenHeight", String.valueOf(screenHeight));
            int heightDiff = screenHeight - (r.bottom - r.top);
            Log.e("heightDiff", String.valueOf(heightDiff));
            boolean visible = heightDiff > screenHeight / 3;
            Log.e("visible", String.valueOf(visible));
            if (visible) {
                Toast.makeText(LabRegister.this, "I am here 1", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(LabRegister.this, "I am here 2", Toast.LENGTH_SHORT).show();
            }
        }
});

Answer 21

Answer of @iWantScala is great but not working for me
rootView.getRootView().getHeight() always has the same value

one way is to define two vars

private int maxRootViewHeight = 0;
private int currentRootViewHeight = 0;

add global listener

rootView.getViewTreeObserver()
    .addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            currentRootViewHeight = rootView.getHeight();
            if (currentRootViewHeight > maxRootViewHeight) {
                maxRootViewHeight = currentRootViewHeight;
            }
        }
    });

then check

if (currentRootViewHeight >= maxRootViewHeight) {
    // Keyboard is hidden
} else {
    // Keyboard is shown
}

works fine

Answer 22

private fun isKeyboardVisible(rootView: View) =
    ViewCompat.getRootWindowInsets(rootView)!!.isVisible(WindowInsetsCompat.Type.ime())

Answer 23

I had a similar problem. I needed to react to the Enter button on screen (which hid the keyboard). In this case you can subscribe to the OnEditorAction of the text view the keyboard was opend with - if you have multiple editable boxes, then subscribe to all of them.

In your Activity you have full control of the keyboard, so at no point will you face the problem whether the keyboard is opened or not, if you listen to all opening and closing events.

Answer 24

There is a direct method to find this out. And, it does not require the layout changes.
So it works in immersive fullscreen mode, too.
But, unfortunately, it does not work on all devices. So you have to test it with your device(s).

The trick is that you try to hide or show the soft keyboard and capture the result of that try.
If it works correct then the keyboard is not really shown or hidden. We just ask for the state.

To stay up-to-date, you simply repeat this operation, e.g. every 200 milliseconds, using a Handler.

The implementation below does just a single check.
If you do multiple checks, then you should enable all the (_keyboardVisible) tests.

public interface OnKeyboardShowHide
{
    void    onShowKeyboard( Object param );
    void    onHideKeyboard( Object param );
}

private static Handler      _keyboardHandler    = new Handler();
private boolean             _keyboardVisible    = false;
private OnKeyboardShowHide  _keyboardCallback;
private Object              _keyboardCallbackParam;

public void start( OnKeyboardShowHide callback, Object callbackParam )
{
    _keyboardCallback      = callback;
    _keyboardCallbackParam = callbackParam;
    //
    View view = getCurrentFocus();
    if (view != null)
    {
        InputMethodManager imm = (InputMethodManager) getSystemService( Activity.INPUT_METHOD_SERVICE );
        imm.hideSoftInputFromWindow( view.getWindowToken(), InputMethodManager.HIDE_IMPLICIT_ONLY, _keyboardResultReceiver );
        imm.showSoftInput( view, InputMethodManager.SHOW_IMPLICIT, _keyboardResultReceiver );
    }
    else // if (_keyboardVisible)
    {
        _keyboardVisible = false;
        _keyboardCallback.onHideKeyboard( _keyboardCallbackParam );
    }
}

private ResultReceiver      _keyboardResultReceiver = new ResultReceiver( _keyboardHandler )
{
    @Override
    protected void onReceiveResult( int resultCode, Bundle resultData )
    {
        switch (resultCode)
        {
            case InputMethodManager.RESULT_SHOWN :
            case InputMethodManager.RESULT_UNCHANGED_SHOWN :
                // if (!_keyboardVisible)
                {
                    _keyboardVisible = true;
                    _keyboardCallback.onShowKeyboard( _keyboardCallbackParam );
                }
                break;
            case InputMethodManager.RESULT_HIDDEN :
            case InputMethodManager.RESULT_UNCHANGED_HIDDEN :
                // if (_keyboardVisible)
                {
                    _keyboardVisible = false;
                    _keyboardCallback.onHideKeyboard( _keyboardCallbackParam );
                }
                break;
        }
    }
};

Answer 25

Here is a workaround to know if softkeyboard is visible.

1. Check for running services on the system using ActivityManager.getRunningServices(max_count_of_services);
2. From the returned ActivityManager.RunningServiceInfo instances, check clientCount value for soft keyboard service.
3. The aforementioned clientCount will be incremented every time, the soft keyboard is shown. For example, if clientCount was initially 1, it would be 2 when the keyboard is shown.
4. On keyboard dismissal, clientCount is decremented. In this case, it resets to 1.

Some of the popular keyboards have certain keywords in their classNames:

1. Google AOSP = IME
2. Swype = IME
3. Swiftkey = KeyboardService
4. Fleksy = keyboard
5. Adaptxt = IME (KPTAdaptxtIME)
6. Smart = Keyboard (SmartKeyboard)

From ActivityManager.RunningServiceInfo, check for the above patterns in ClassNames. Also, ActivityManager.RunningServiceInfo's clientPackage=android, indicating that the keyboard is bound to system.

The above mentioned information could be combined for a strict way to find out if soft keyboard is visible.

Answer 26

I converted the answer to the kotlin, hope this helps for kotlin users.

private fun checkKeyboardVisibility() {
    var isKeyboardShowing = false

    binding.coordinator.viewTreeObserver.addOnGlobalLayoutListener {
        val r = Rect()
        binding.coordinator.getWindowVisibleDisplayFrame(r)
        val screenHeight = binding.coordinator.rootView.height

        // r.bottom is the position above soft keypad or device button.
        // if keypad is shown, the r.bottom is smaller than that before.
        val keypadHeight = screenHeight - r.bottom


        if (keypadHeight > screenHeight * 0.15) { // 0.15 ratio is perhaps enough to determine keypad height.
            // keyboard is opened
            if (!isKeyboardShowing) {
                isKeyboardShowing = true

            }
        } else {
            // keyboard is closed
            if (isKeyboardShowing) {
                isKeyboardShowing = false

            }
        }
    }
}

Answer 27

If you support apis for AndroidR in your app then you can use the below method.

In kotlin :
    var imeInsets = view.rootWindowInsets.getInsets(Type.ime()) 
    if (imeInsets.isVisible) { 
        view.translationX = imeInsets.bottom 
    }

Note: This is only available for the AndroidR and below android version needs to follow some of other answer or i will update it for that.

Answer 28

It works with adjustNothing flag of activity and lifecycle events are used. Also with Kotlin:

/**
 * This class uses a PopupWindow to calculate the window height when the floating keyboard is opened and closed
 *
 * @param activity The parent activity
 *  The root activity that uses this KeyboardManager
 */
class KeyboardManager(private val activity: AppCompatActivity) : PopupWindow(activity), LifecycleObserver {

    private var observerList = mutableListOf<((keyboardTop: Int) -> Unit)>()

    /** The last value of keyboardTop */
    private var keyboardTop: Int = 0

    /** The view that is used to calculate the keyboard top  */
    private val popupView: View?

    /** The parent view  */
    private var parentView: View

    var isKeyboardShown = false
        private set

    /**
     * Create transparent view which will be stretched over to the full screen
     */
    private fun createFullScreenView(): View {
        val view = LinearLayout(activity)
        view.layoutParams = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT)
        view.background = ColorDrawable(Color.TRANSPARENT)
        return view
    }

    init {
        this.popupView = createFullScreenView()
        contentView = popupView

        softInputMode = LayoutParams.SOFT_INPUT_ADJUST_RESIZE or LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE
        inputMethodMode = INPUT_METHOD_NEEDED

        parentView = activity.findViewById(android.R.id.content)

        width = 0
        height = LayoutParams.MATCH_PARENT

        popupView.viewTreeObserver.addOnGlobalLayoutListener {
            val rect = Rect()
            popupView.getWindowVisibleDisplayFrame(rect)

            val keyboardTop = rect.bottom
            if (this.keyboardTop != keyboardTop) {
                isKeyboardShown = keyboardTop < this.keyboardTop
                this.keyboardTop = keyboardTop
                observerList.forEach { it(keyboardTop) }
            }
        }
        activity.lifecycle.addObserver(this)
    }

    /**
     * This must be called after the onResume of the Activity or inside view.post { } .
     * PopupWindows are not allowed to be registered before the onResume has finished
     * of the Activity
     */
    @OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
    fun start() {
        parentView.post {
            if (!isShowing && parentView.windowToken != null) {
                setBackgroundDrawable(ColorDrawable(0))
                showAtLocation(parentView, Gravity.NO_GRAVITY, 0, 0)
            }
        }
    }

    /**
     * This manager will not be used anymore
     */
    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
    fun close() {
        activity.lifecycle.removeObserver(this)
        observerList.clear()
        dismiss()
    }

    /**
     * Set the keyboard top observer. The observer will be notified when the keyboard top has changed.
     * For example when the keyboard is opened or closed
     *
     * @param observer The observer to be added to this provider
     */
    fun registerKeyboardTopObserver(observer: (keyboardTop: Int) -> Unit) {
        observerList.add(observer)
    }
}

Useful method to keep view always above the keyboard

fun KeyboardManager.updateBottomMarginIfKeyboardShown(
        view: View,
        activity: AppCompatActivity,
        // marginBottom of view when keyboard is hide
        marginBottomHideKeyboard: Int,
        // marginBottom of view when keybouard is shown
        marginBottomShowKeyboard: Int
) {
    registerKeyboardTopObserver { bottomKeyboard ->
        val bottomView = ViewUtils.getFullViewBounds(view).bottom
        val maxHeight = ScreenUtils.getFullScreenSize(activity.windowManager).y
        // Check that view is within the window size
        if (bottomView < maxHeight) {
            if (bottomKeyboard < bottomView) {
                ViewUtils.updateMargin(view, bottomMargin = bottomView - bottomKeyboard +
                        view.marginBottom + marginBottomShowKeyboard)
            } else ViewUtils.updateMargin(view, bottomMargin = marginBottomHideKeyboard)
        }
    }
}

Where getFullViewBounds

fun getLocationOnScreen(view: View): Point {
    val location = IntArray(2)
    view.getLocationOnScreen(location)
    return Point(location[0], location[1])
}

fun getFullViewBounds(view: View): Rect {
     val location = getLocationOnScreen(view)
     return Rect(location.x, location.y, location.x + view.width,
            location.y + view.height)
 }

Where getFullScreenSize

fun getFullScreenSize(wm: WindowManager? = null) =
            getScreenSize(wm) { getRealSize(it) }

private fun getScreenSize(wm: WindowManager? = null, block: Display.(Point) -> Unit): Point {
    val windowManager = wm ?: App.INSTANCE.getSystemService(Context.WINDOW_SERVICE)
            as WindowManager
    val point = Point()
    windowManager.defaultDisplay.block(point)
    return point
}

Where updateMargin

fun updateMargin(
        view: View,
        leftMargin: Int? = null,
        topMargin: Int? = null,
        rightMargin: Int? = null,
        bottomMargin: Int? = null
) {
    val layoutParams = view.layoutParams as ViewGroup.MarginLayoutParams
    if (leftMargin != null) layoutParams.leftMargin = leftMargin
    if (topMargin != null) layoutParams.topMargin = topMargin
    if (rightMargin != null) layoutParams.rightMargin = rightMargin
    if (bottomMargin != null) layoutParams.bottomMargin = bottomMargin
    view.layoutParams = layoutParams
}

Answer 29

Thanks all answers, I figure it out for my own circumstances

/**
 * Add global layout listener to observe system keyboard visibility
 */
private void initObserverForSystemKeyboardVisibility() {
    getRootView().getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            //Add your own code here
            Log.d("TEST_CODE", "isSystemKeyboardVisible:" + isSystemKeyboardVisible())
        }
    });
}


/**
 * Check system keyboard visibility
 * @return true if visible
 */
public boolean isSystemKeyboardVisible() {
    try {
        final InputMethodManager manager = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
        final Method windowHeightMethod = InputMethodManager.class.getMethod("getInputMethodWindowVisibleHeight");
        final int height = (int) windowHeightMethod.invoke(manager);
        return height > 0;
    } catch (Exception e) {
        return false;
    }
}